{"id":1030,"date":"2025-04-27T15:53:57","date_gmt":"2025-04-27T07:53:57","guid":{"rendered":"https:\/\/eve2333.top\/?p=1030"},"modified":"2025-04-27T15:53:58","modified_gmt":"2025-04-27T07:53:58","slug":"%e9%bb%91%e9%a9%ac%e7%82%b9%e8%af%84redis%e6%94%b9-part-5","status":"publish","type":"post","link":"https:\/\/eve2333.top\/?p=1030","title":{"rendered":"\u9ed1\u9a6c\u70b9\u8bc4redis\u6539 part 5"},"content":{"rendered":"\n<h1 class=\"wp-block-heading\">\u8fbe\u4eba\u63a2\u5e97<\/h1>\n\n\n\n<h2 class=\"wp-block-heading\">\u53d1\u5e03\u63a2\u5e97\u7b14\u8bb0<\/h2>\n\n\n\n<p><img loading=\"lazy\" decoding=\"async\" height=\"308\" width=\"679\" src=\"https:\/\/i-blog.csdnimg.cn\/direct\/0a3703b6eed643d2bf3b0a1a4dbd7714.png\" alt=\"\"><\/p>\n\n\n\n<p>\u90a3\u7b2c\u4e00\u5f20\u8868block\u8868\u5b83\u91cc\u8fb9\u7684\u7ed3\u6784\u5462\u662f\u8fd9\u4e2a<br>\u9996\u5148\u5462\u7b2c\u4e00\u4e2a\u5b57\u6bb5\u662fi d\uff0c\u5c31\u662f\u4e3b\u952e\uff0c\u7b2c\u4e8c\u4e2a\u5462\u662fshop 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update time\uff0c\u521b\u5efa\u65f6\u95f4\u66f4\u65b0\u65f6\u95f4<\/p>\n\n\n\n<p>&nbsp;\u5b9e\u9645\u751f\u4ea7\u4e2d\u4e0d\u4f1a\u52a0\u5916\u952e\uff0c\u8fd9\u4f1a\u7ed9\u6bcf\u6b21\u64cd\u4f5c\u8fdb\u884c\u9a8c\u8bc1\uff0c\u4f1a\u5927\u5927\u964d\u4f4e\u6027\u80fd\uff0c<strong>\u914d\u4e86\u8d1f\u8f7d\u5747\u8861\u7684\uff0c\u8bb0\u5f97\u542f\u52a8\u4e24\u4e2a\u670d\u52a1\uff0c\u5426\u5219\u524d\u7aef\u9875\u9762\u663e\u793a\u4e0d\u5168<\/strong><\/p>\n\n\n\n<p>&nbsp;uploadcontrol\u5b9e\u73b0\u4e86\u529f\u80fd\uff0c\u800c\u56e0\u6b64\u5462\u554a\u5728\u8fd9\u4e2a\u5730\u65b9\uff0c\u6211\u4eec\u4f1a\u5b9a\u4e49\u4e00\u4e2a\u53eb\u505aimage upload dr\u6587\u4ef6\u4e0a\u4f20\u7684\u5730\u5740\uff0c\u90a3\u4e48\u8fd9\u4e2a\u5730\u5740\u6240\u4ee5\u6211\u4eec\u9700\u8981\u628a\u5b83\u6539\u6210\u4ec0\u4e48\uff0c\u6211\u4eec\u5f53\u524d\u7684\u8fd9\u4e2a\u76ee\u5f55\u554a\u3002\u4f60\u9700\u8981\u627e\u5230\u4f60\u81ea\u5df1\u7684index\u7684\u76ee\u5f55<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>package com.hmdp.utils;\n\npublic class SystemConstants {\n    public static final String IMAGE_UPLOAD_DIR = \"D:\\\\lesson\\\\nginx-1.18.0\\\\html\\\\hmdp\\\\imgs\\\\\";\n    public static final String USER_NICK_NAME_PREFIX = \"user_\";\n    public static final int DEFAULT_PAGE_SIZE = 5;\n    public static final int MAX_PAGE_SIZE = 10;\n}\n<\/code><\/pre>\n\n\n\n<p><img loading=\"lazy\" decoding=\"async\" height=\"207\" width=\"330\" src=\"https:\/\/i-blog.csdnimg.cn\/direct\/4893e7d17e4e46a7b8877fb7909fd16b.png\" alt=\"\"><img loading=\"lazy\" decoding=\"async\" height=\"171\" width=\"503\" src=\"https:\/\/i-blog.csdnimg.cn\/direct\/9ec27022fd824c9a99ad25be80d81919.png\" alt=\"\"><\/p>\n\n\n\n<p>\u6210\u529f\u4e0a\u4f20\uff0c\u4e5f\u53ef\u4ee5\u591a \u6b21\u4e0a\u4f20\u56fe\u7247\u554a<\/p>\n\n\n\n<p>\u00a0<img loading=\"lazy\" decoding=\"async\" height=\"422\" width=\"285\" src=\"https:\/\/i-blog.csdnimg.cn\/direct\/22cdf4d8c9174e75a0cd3d1831aac7c7.png\" alt=\"\"><img loading=\"lazy\" decoding=\"async\" height=\"233\" width=\"372\" src=\"https:\/\/i-blog.csdnimg.cn\/direct\/7895d713891241adada6b9ca36d04176.png\" alt=\"\"><\/p>\n\n\n\n<p>\u70b9\u51fb\u53d1\u5e03\uff0c\u90a3\u4e48\u4f1a\u81ea\u52a8\u8df3\u5230\u4e3b\u9875\u91cc\uff0c\u5728app\u9996\u9875\uff0c\u6211\u4eec\u53ef\u4ee5\u770b\u5230\uff0c\u540c\u6837\u7684\u6570\u636e\u5e93\u7684tb blog\u4e5f\u53ef\u4ee5\u770b\u5f97\u5230\u8fd9\u6761\u6d88\u606f<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">&nbsp;\u5b9e\u73b0\u67e5\u770b\u53d1\u5e03\u63a2\u5e97\u7b14\u8bb0\u7684\u63a5\u53e3<\/h3>\n\n\n\n<p>\u9700\u6c42\uff1a\u70b9\u51fb\u9996\u9875\u7684\u63a2\u5e97\u7b14\u8bb0\uff0c\u4f1a\u8fdb\u5165\u8be6\u60c5\u9875\u9762\uff0c\u5b9e\u73b0\u8be5\u9875\u9762\u7684\u67e5\u8be2\u63a5\u53e3<\/p>\n\n\n\n<p><img loading=\"lazy\" decoding=\"async\" height=\"468\" width=\"907\" src=\"https:\/\/i-blog.csdnimg.cn\/direct\/0a78b787e7cf433290f9daa4bca92bda.png\" alt=\"\"><\/p>\n\n\n\n<p>\u597d\u7684\uff0c\u540c\u5b66\u4eec\uff0c\u6211\u4eec\u6765\u7ee7\u7eed\u5206\u6790\u8fd9\u4e2a\u63a5\u53e3\u3002\u9996\u5148\uff0c\u63a5\u53e3\u76f8\u5173\u7684\u4fe1\u606f\u6211\u5df2\u7ecf\u63d0\u524d\u5206\u6790\u4e86\u4e00\u4e0b\u3002\u8bf7\u6c42\u7684\u65b9\u5f0f\u662fGET\uff0c\u8fd9\u4e00\u70b9\u6211\u4eec\u901a\u8fc7\u67e5\u770b\u5c31\u80fd\u77e5\u9053\uff0c\u8def\u5f84\u662f<code>\/block<\/code>\uff0c\u540e\u9762\u8ddf\u7740\u7684\u662f<code>id<\/code>\uff0c\u8fd9\u4e2a\u4e5f\u6ca1\u6709\u95ee\u9898\u3002\u7136\u540e\u8bf7\u6c42\u53c2\u6570\u81ea\u7136\u5c31\u662f\u8fd9\u4e2a<code>id<\/code>\u4e86\uff0c\u4e5f\u5c31\u662f\u5f53\u524d\u8fd9\u7bc7\u535a\u5ba2\u7684ID\u3002\u6700\u540e\u8fd4\u56de\u503c\u662f\u4ec0\u4e48\u5462\uff1f\u8fd4\u56de\u503c\u6839\u636e<code>id<\/code>\u67e5\u8be2\u8fd9\u4e2a\u535a\u5ba2\uff08Blog\uff09\uff0c\u90a3\u8fd4\u56de\u503c\u662f\u4e0d\u662f\u5e94\u8be5\u5c31\u662fBlog\u5440\uff1f\u7406\u8bba\u4e0a\u8bb2\u5c31\u662f\u5982\u6b64\uff0c\u4f46\u662f\u5927\u5bb6\u522b\u5fd8\u4e86\uff0c\u5176\u5b9e\u6211\u4eec\u53d1\u5e03\u7684\u4efb\u4f55\u4e00\u7bc7\u63a2\u5e97\u7b14\u8bb0\uff0c\u5b83\u91cc\u8fb9\u90fd\u5305\u542b\u6709\u8fd9\u4e2a\u7528\u6237\u7684\u4fe1\u606f\u3002\u7136\u540e\u624d\u662f\u8fd9\u4e2a\u56fe\u7247\uff0c\u8fd8\u6709\u6807\u9898\u7b49\u7b49\u3002<\/p>\n\n\n\n<p>\u6240\u4ee5\u8bf4\u6211\u4eec\u5728\u8be6\u60c5\u9875\u9762\u5c55\u793a\u7684\u65f6\u5019\uff0c\u9664\u4e86\u8981\u5c55\u793a\u8fd9\u91cc\u7684\u56fe\u7247\u3001\u6807\u9898\u3001\u5185\u5bb9\u4ee5\u5916\uff0c\u90a3\u8fd9\u4e2a\u53d1\u5e03\u8fd9\u7bc7\u7b14\u8bb0\u7684\u7528\u6237\u662f\u4e0d\u662f\u4e5f\u5e94\u8be5\u5c55\u793a\u51fa\u6765\uff0c\u8fd9\u6837\u5176\u4ed6\u7528\u6237\u770b\u5230\u8fd9\u7bc7\u535a\u5ba2\u4ee5\u540e\uff0c\u5982\u679c\u611f\u5174\u8da3\uff0c\u662f\u4e0d\u662f\u53ef\u4ee5\u76f4\u63a5\u5173\u6ce8\u5f53\u524d\u7684\u7528\u6237\u4e86\u3002\u6240\u4ee5\u8bf4\u5462\uff0c\u6211\u4eec\u8fd4\u56de\u7684\u7ed3\u679c\u4e2d\u9664\u4e86\u535a\u5ba2\u4fe1\u606f\u4ee5\u5916\uff0c\u8fd8\u5e94\u8be5\u5305\u542b\u5bf9\u5e94\u7684\u7528\u6237\u4fe1\u606f\u3002\u90a3\u6211\u4eec\u600e\u4e48\u6837\u624d\u80fd\u5728\u7ed3\u679c\u4e2d\u5305\u542b\u4e24\u90e8\u5206\u5185\u5bb9\u5462\uff1f<\/p>\n\n\n\n<p>\u90a3\u6211\u4eec\u56de\u5230IDEA\u770b\u4e00\u4e0b\uff0c\u5728\u8fd9\u91cc\u5b9e\u73b0\u8d77\u6765\u5176\u5b9e\u975e\u5e38\u7684\u7b80\u5355\uff0c\u6709\u4e24\u79cd\u9009\u62e9\u3002\u7b2c\u4e00\u79cd\u9009\u62e9\u5c31\u662f\u5728\u6211\u4eec\u7684\u8fd9\u4e2aBlog\u7c7b\u91cc\u8fb9\u52a0\u4e00\u4e2a\u7528\u6237\u7684\u6210\u5458\u53d8\u91cf\u5c31\u884c\u4e86\u3002\u90a3\u8fd9\u6837\u4e00\u6765\uff0c\u6211\u4eec\u53ea\u8981\u628a\u67e5\u8be2\u5230\u7684\u8ddf\u8fd9\u4e2a\u7528\u6237ID\u6709\u5173\u7684\u8fd9\u4e2a\u7528\u6237\uff08User\uff09\u7684\u5bf9\u8c61\u5b58\u8fdb\u53bb\uff0c\u662f\u4e0d\u662f\u5c31OK\u4e86\uff1f\u4f46\u5728\u8fd9\u5462\uff0c\u6211\u91c7\u7528\u4e86\u4e00\u79cd\u7b80\u5316\u7684\u65b9\u6cd5\uff0c\u600e\u4e48\u7b80\u5316\u5462\uff1f\u5c31\u662f\u5728\u6211\u4eec\u7684Blog\u7c7b\u91cc\u8fb9\u52a0\u4e86\u4e24\u4e2a\u5b57\u6bb5\uff0c\u4f60\u770b\u8fd9\u4e2a\u535a\u5ba2\u7c7b\u91cc\u9762\u7684\u5176\u4ed6\u5b57\u6bb5\uff0c\u5e97\u94faID\uff08shop id\uff09\u3001\u7528\u6237ID\uff08user id\uff09\u3001\u8fd8\u6709\u6211\u4eec\u7684\u6807\u9898\u3001\u56fe\u7247\u3001\u5185\u5bb9\u7b49\u7b49\uff0c\u8fd9\u4e9b\u90fd\u662f\u6570\u636e\u5e93\u5b57\u6bb5\u3002\u800c\u552f\u72ec\u8fd9\u4e24\u4e2a\u5b57\u6bb5\u4e00\u4e2a\u53eb\u56fe\u6807\uff08icon\uff09\u3001\u4e00\u4e2a\u53eb\u59d3\u540d\uff08name\uff09\uff0c\u8fd9\u4e24\u4e2a\u5c31\u662f\u6211\u4eec\u7684\u7528\u6237\u5b57\u6bb5\u4e86\u3002<\/p>\n\n\n\n<p>\u90a3\u6211\u4eec\u7684\u7528\u6237\u9664\u4e86\u6709ID\u4ee5\u5916\uff0c\u8fd8\u6709\u5c31\u662f\u56fe\u6807\u548c\u59d3\u540d\uff0c\u5269\u4e0b\u7684\u654f\u611f\u5b57\u6bb5\u6211\u4eec\u5c31\u4e0d\u8fd4\u56de\u4e86\uff0c\u53ea\u8fd4\u56de\u8fd9\u4e09\u4e2a\u8db3\u591f\u9875\u9762\u663e\u793a\u5c31\u53ef\u4ee5\u4e86\u3002\u800c\u8fd9\u4e24\u4e2a\u5b57\u6bb5\u5462\u6211\u4eec\u52a0\u4e86<code>@TableField<\/code>\u6ce8\u89e3\uff0c\u5b83\u4ee3\u8868\u7684\u542b\u4e49\u5c31\u662f\u5f53\u524d\u5b57\u6bb5\u4e0d\u5c5e\u4e8e\u535a\u5ba2\u6240\u5b9a\u4e49\u7684\u8868\uff0c\u4f60\u8868\u4e0d\u662f\u535a\u5ba2\u8868\u5417\uff1f\u800c\u8fd9\u4e24\u4e2a\u5b57\u6bb5\u4e0d\u5728\u8868\u91cc\u9762\uff0c\u6240\u4ee5\u8bf4\u6211\u52a0\u4e86\u8fd9\u6837\u4e00\u4e2a\u6ce8\u89e3\uff0c\u90a3\u5c06\u6765\u5462\u6211\u4eec\u624b\u52a8\u7684\u8981\u7ef4\u62a4\u8fd9\u4e24\u4e2a\u5b57\u6bb5\u5c31\u53ef\u4ee5\u4e86\u3002\u8fd9\u6837\u5927\u5bb6\u5e94\u8be5\u5c31\u80fd\u7406\u89e3\u4e86\u5427\u3002<\/p>\n\n\n\n<p>\u90a3\u4e0b\u9762\u5462\u6211\u4eec\u5c31\u53ef\u4ee5\u53bb\u5b9e\u73b0\u4e00\u4e0b\u4e86\uff0c\u6211\u4eec\u627e\u5230\u535a\u5ba2\u63a7\u5236\u5668\uff08BlogController\uff09\uff0c\u6211\u4eec\u5728\u8fd9\u513f\u53bb\u5199\u8fd9\u4e2a\u63a5\u53e3\u3002\u5b9e\u73b0\u7684\u65f6\u5019\uff0c\u6211\u4eec\u9996\u5148\u8981\u6839\u636e<code>id<\/code>\u67e5\u8be2\u5230\u5bf9\u5e94\u7684\u535a\u5ba2\uff08Blog\uff09\u4fe1\u606f\uff0c\u7136\u540e\u6839\u636e\u535a\u5ba2\u4fe1\u606f\u4e2d\u7684\u7528\u6237ID\uff08user id\uff09\uff0c\u518d\u53bb\u67e5\u8be2\u7528\u6237\uff08User\uff09\u4fe1\u606f\u3002\u67e5\u8be2\u5230\u7528\u6237\u4fe1\u606f\u540e\uff0c\u6211\u4eec\u5c06\u7528\u6237\u4fe1\u606f\u6dfb\u52a0\u5230\u535a\u5ba2\u4fe1\u606f\u4e2d\uff0c\u6700\u540e\u5c06\u5305\u542b\u7528\u6237\u4fe1\u606f\u7684\u535a\u5ba2\u4fe1\u606f\u8fd4\u56de\u7ed9\u524d\u7aef\u3002\u5269\u4e0b\u7684\u654f\u611f\u5b57\u6bb5\u6211\u4eec\u5c31\u4e0d\u8fd4\u56de\uff0c\u53ea\u8fd4\u56de\u8fd9\u4e09\u4e2a\u8db3\u591f\u9875\u9762\u663e\u793a\u5c31\u53ef\u4ee5\u4e86\uff0c\u800c\u8fd9\u4e24\u4e2a\u5b57\u6bb5\u5462\u6211\u4eec\u52a0\u4e86table field\uff0cexit\u7b49\u4e8efalse\u8fd9\u6837\u4e00\u4e2a\u6ce8\u89e3\uff0c\u5b83\u4ee3\u8868\u7684\u542b\u4e49\u5c31\u662f\u8bf4\u5f53\u524d\u5b57\u6bb5\u4e0d\u5c5e\u4e8eblog\u5b83\u6240\u5b9a\u4e49\u7684\u8868\uff0c\u800c\u6211\u8fd9\u4fe9\u5b57\u6bb5\u4e0d\u5728\u8868\u91cc\u9762\uff0c\u5199control<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>package com.hmdp.controller;\n\n\nimport com.baomidou.mybatisplus.extension.plugins.pagination.Page;\nimport com.hmdp.dto.Result;\nimport com.hmdp.dto.UserDTO;\nimport com.hmdp.entity.Blog;\nimport com.hmdp.entity.User;\nimport com.hmdp.service.IBlogService;\nimport com.hmdp.service.IUserService;\nimport com.hmdp.utils.SystemConstants;\nimport com.hmdp.utils.UserHolder;\nimport org.springframework.web.bind.annotation.*;\n\nimport javax.annotation.Resource;\nimport java.util.List;\n\n\/**\n * &lt;p&gt;\n * \u524d\u7aef\u63a7\u5236\u5668\n * &lt;\/p&gt;\n *\n * @author \u864e\u54e5\n * @since 2021-12-22\n *\/\n@RestController\n@RequestMapping(\"\/blog\")\npublic class BlogController {\n\n    @Resource\n    private IBlogService blogService;\n\n\n    @PostMapping\n    public Result saveBlog(@RequestBody Blog blog) {\n        \/\/ \u83b7\u53d6\u767b\u5f55\u7528\u6237\n        UserDTO user = UserHolder.getUser();\n        blog.setUserId(user.getId());\n        \/\/ \u4fdd\u5b58\u63a2\u5e97\u535a\u6587\n        blogService.save(blog);\n        \/\/ \u8fd4\u56deid\n        return Result.ok(blog.getId());\n    }\n\n    @PutMapping(\"\/like\/{id}\")\n    public Result likeBlog(@PathVariable(\"id\") Long id) {\n        \/\/ \u4fee\u6539\u70b9\u8d5e\u6570\u91cf\n        blogService.update()\n                .setSql(\"liked = liked + 1\").eq(\"id\", id).update();\n        return Result.ok();\n    }\n\n    @GetMapping(\"\/of\/me\")\n    public Result queryMyBlog(@RequestParam(value = \"current\", defaultValue = \"1\") Integer current) {\n        \/\/ \u83b7\u53d6\u767b\u5f55\u7528\u6237\n        UserDTO user = UserHolder.getUser();\n        \/\/ \u6839\u636e\u7528\u6237\u67e5\u8be2\n        Page&lt;Blog&gt; page = blogService.query()\n                .eq(\"user_id\", user.getId()).page(new Page&lt;&gt;(current, SystemConstants.MAX_PAGE_SIZE));\n        \/\/ \u83b7\u53d6\u5f53\u524d\u9875\u6570\u636e\n        List&lt;Blog&gt; records = page.getRecords();\n        return Result.ok(records);\n    }\n\n    @GetMapping(\"\/hot\")\n    public Result queryHotBlog(@RequestParam(value = \"current\", defaultValue = \"1\") Integer current) {\n        return blogService.queryHotBlog(current);\n    }\n    @GetMapping(\"\/{id}\")\n    public Result queryBlogById(@PathVariable(\"id\") Long id) {\n        return blogService.queryBlogById(id);\n    }\n\n}\n<\/code><\/pre>\n\n\n\n<p>service\u52a0\u4e00\u4e0b\u5c31\u884c\uff0cimpl\u5199\u4e00\u4e0b\u5982\u4e0b<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>package com.hmdp.service.impl;\n\nimport com.baomidou.mybatisplus.extension.plugins.pagination.Page;\nimport com.hmdp.dto.Result;\nimport com.hmdp.entity.Blog;\nimport com.hmdp.entity.User;\nimport com.hmdp.mapper.BlogMapper;\nimport com.hmdp.service.IBlogService;\nimport com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;\nimport com.hmdp.service.IUserService;\nimport com.hmdp.utils.SystemConstants;\nimport org.springframework.stereotype.Service;\n\nimport javax.annotation.Resource;\nimport java.util.List;\n\n\/**\n * &lt;p&gt;\n * \u670d\u52a1\u5b9e\u73b0\u7c7b\n * &lt;\/p&gt;\n *\n * @author \u864e\u54e5\n * @since 2021-12-22\n *\/\n@Service\npublic class BlogServiceImpl extends ServiceImpl&lt;BlogMapper, Blog&gt; implements IBlogService {\n    @Resource\n    private IUserService userService;\n\n    @Override\n    public Result queryBlogById(Long id) {\n\n        \/\/1.\u67e5\u8be2blog\n        Blog blog = getById(id);\n        if (blog == null) {\n            return Result.fail(\"\u7b14\u8bb0\u4e0d\u5b58\u5728\uff01\");\n        }\n        \/\/2.\u67e5\u8be2bLog\u6709\u5173\u7684\u7528\u6237\n        queryBlogUser(blog);\n        return Result.ok(blog);\n    }\n\n    private void queryBlogUser(Blog blog) {\n        Long userId = blog.getUserId();\n        User user = userService.getById(userId);\n        blog.setName(user.getNickName());\n        blog.setIcon(user.getIcon());\n    }\n\n    @Override\n    public Result queryHotBlog(Integer current) {\n        \/\/ \u6839\u636e\u7528\u6237\u67e5\u8be2\n        Page&lt;Blog&gt; page = query()\n                .orderByDesc(\"liked\")\n                .page(new Page&lt;&gt;(current, SystemConstants.MAX_PAGE_SIZE));\n        \/\/ \u83b7\u53d6\u5f53\u524d\u9875\u6570\u636e\n        List&lt;Blog&gt; records = page.getRecords();\n        \/\/ \u67e5\u8be2\u7528\u6237\n        \/\/lam\n        records.forEach(this::queryBlogUser);\n        return Result.ok(records);\n    }\n}\n<\/code><\/pre>\n\n\n\n<p><img loading=\"lazy\" decoding=\"async\" height=\"518\" width=\"377\" src=\"https:\/\/i-blog.csdnimg.cn\/direct\/7dd122fb98d746d8b639b0ca7d24982d.png\" alt=\"\">\u00a0<img loading=\"lazy\" decoding=\"async\" height=\"539\" width=\"299\" src=\"https:\/\/i-blog.csdnimg.cn\/direct\/689a8bfbe5414a48bd0d70fa055c53c2.png\" alt=\"\"><\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u70b9\u8d5e<\/h2>\n\n\n\n<p>\u4f60\u53d1\u73b0\u4e00\u4e2a\u4eba\u53ef\u4ee5\u65e0\u9650\u6b21\u7684\u70b9\u8d5e\uff0c\u8fd9\u662f\u56e0\u4e3a\u4ee3\u7801\u76f4\u63a5\u6570\u636e\u5e93\u4e2d++\uff0c\u4e0d\u505a\u4efb\u4f55\u5224\u65ad\u9650\u5b9a<\/p>\n\n\n\n<p>\u9700\u6c42\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u540c\u4e00\u4e2a\u7528\u6237\u53ea\u80fd\u70b9\u8d5e\u4e00\u6b21\uff0c\u518d\u6b21\u70b9\u51fb\u5219\u53d6\u6d88\u70b9\u8d5e<\/li>\n\n\n\n<li>\u5982\u679c\u5f53\u524d\u7528\u6237\u5df2\u7ecf\u70b9\u8d5e\uff0c\u5219\u70b9\u8d5e\u6309\u94ae\u9ad8\u4eae\u663e\u793a\uff08\u524d\u7aef\u5df2\u5b9e\u73b0\uff0c\u5224\u65ad\u5b57\u6bb5Blog\u7c7b\u7684isLike\u5c5e\u6027\uff09<\/li>\n<\/ul>\n\n\n\n<p>&nbsp;\u7531\u4e8e\u9700\u8981\u8bb0\u5f55\u70b9\u8d5e\u4eba\u548c\u88ab\u70b9\u8d5e\u4eba\uff0c\u8fd8\u6709\u70b9\u8d5e\u72b6\u6001\uff08\u70b9\u8d5e\u3001\u53d6\u6d88\u70b9\u8d5e\uff09\uff0c\u8fd8\u8981\u56fa\u5b9a\u65f6\u95f4\u95f4\u9694\u53d6\u51fa Redis \u4e2d\u6240\u6709\u70b9\u8d5e\u6570\u636e\uff0c\u5206\u6790\u4e86\u4e0b Redis \u6570\u636e\u683c\u5f0f\u4e2d Hash \u6700\u5408\u9002\u3002blog.java\u91cc\u9762\u6dfb\u52a0\u6709\u8fd9\u4e2a\uff08\u5b9e\u9645\u7528\u7684set\uff09<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">\/**\n * \u662f\u5426\u70b9\u8d5e\u8fc7\u4e86\n * boolean\u7c7b\u578b\u5b57\u6bb5\u4e0d\u80fdis\u6253\u5934\uff0c\u963f\u91cc\u660e\u6587\u89c4\u5b9a\n *\/\n@TableField(exist = false)\nprivate Boolean isLike;\n<\/pre>\n\n\n\n<p>&nbsp;\u5982\u679c\u4e1a\u52a1\u91cf\u6bd4\u8f83\u591a\u53ef\u4ee5\u505a\u4e2a\u5b9a\u65f6\u540c\u6b65\uff0c\u9694\u4e00\u6bb5\u65f6\u95f4\u540c\u6b65\u4e00\u6b21\u70b9\u8d5e\u4fe1\u606f\u5230\u6570\u636e\u5e93<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>    @PutMapping(\"\/like\/{id}\")\n    public Result likeBlog(@PathVariable(\"id\") Long id) {\n\n        return blogService.likeBlog(id);\n    }<\/code><\/pre>\n\n\n\n<p>&nbsp;\u4fee\u6539\u6216\u8005\u6dfb\u52a0\u8fd9\u51e0\u4e2a\u51fd\u6570<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>    @Override\n    public Result queryBlogById(Long id) {\n\n        \/\/1.\u67e5\u8be2blog\n        Blog blog = getById(id);\n        if (blog == null) {\n            return Result.fail(\"\u7b14\u8bb0\u4e0d\u5b58\u5728\uff01\");\n        }\n        \/\/2.\u67e5\u8be2bLog\u6709\u5173\u7684\u7528\u6237\n        queryBlogUser(blog);\n        \/\/3.\u67e5\u8be2blog\u662f\u5426\u88ab\u70b9\u8d5e\n        isBlogLiked(blog);\n        return Result.ok(blog);\n    }\n\n    private void isBlogLiked(Blog blog) {\n        \/\/ 1. \u83b7\u53d6\u767b\u5f55\u7528\u6237\n        Long userId = UserHolder.getUser().getId();\n        \/\/ 2. \u5224\u65ad\u5f53\u524d\u767b\u5f55\u7528\u6237\u662f\u5426\u5df2\u7ecf\u70b9\u8d5e\n        String key = \"blog:liked:\" + blog.getId();\n        Boolean isMember = stringRedisTemplate.opsForSet().isMember(key, userId.toString());\n        blog.setIsLike(BooleanUtil.isTrue(isMember));\n    }\n\n\n    @Override\n    public Result queryHotBlog(Integer current) {\n        \/\/ \u6839\u636e\u7528\u6237\u67e5\u8be2\n        Page&lt;Blog&gt; page = query()\n                .orderByDesc(\"liked\")\n                .page(new Page&lt;&gt;(current, SystemConstants.MAX_PAGE_SIZE));\n        \/\/ \u83b7\u53d6\u5f53\u524d\u9875\u6570\u636e\n        List&lt;Blog&gt; records = page.getRecords();\n        \/\/ \u67e5\u8be2\u7528\u6237\n        records.forEach(blog  -&gt;\n        {\n            this.queryBlogUser(blog);\n            this.isBlogLiked(blog);\n        });\n        return Result.ok(records);\n    }\n\n \n   @Override\n    public Result likeBlog(Long id) {\n        \/\/ 1. \u83b7\u53d6\u767b\u5f55\u7528\u6237\n        Long userId = UserHolder.getUser().getId();\n            \/\/ 2. \u5224\u65ad\u5f53\u524d\u767b\u5f55\u7528\u6237\u662f\u5426\u5df2\u7ecf\u70b9\u8d5e\n        String key = \"blog:liked:\" + id;\n        Boolean isMember = stringRedisTemplate.opsForSet().isMember(key, userId.toString());\n        if(BooleanUtil.isFalse(isMember)) {\n            \/\/ 3. \u5982\u679c\u672a\u70b9\u8d5e\uff0c\u53ef\u4ee5\u70b9\u8d5e\n            \/\/ 3.1. \u6570\u636e\u5e93\u70b9\u8d5e\u6570 + 1\n            boolean isSuccess = update().setSql(\"liked = liked + 1\").eq(\"id\", id).update();\n            \/\/ 3.2. \u4fdd\u5b58\u7528\u6237\u5230Redis\u7684set\u96c6\u5408\n            if(isSuccess) {\n                stringRedisTemplate.opsForSet().add(key,  userId.toString());\/\/\u6b64\u5904\u5e94\u8be5\u62f7\u8d1dif(isSuccess)\u5224\u65ad\u6570\u636e\u66f4\u65b0\u6210\u529f\u624d\u66f4\u65b0redis\n            }\n        }else {\n            \/\/ 4. \u5982\u679c\u5df2\u70b9\u8d5e\uff0c\u53d6\u6d88\u70b9\u8d5e\n            \/\/ 4.1. \u6570\u636e\u5e93\u70b9\u8d5e\u6570 - 1\n            boolean isSuccess = update().setSql(\"liked = liked - 1\").eq(\"id\", id).update();\n            \/\/\u8fd9\u91cc\u6709\u7ebf\u7a0b\u5b89\u5168\u95ee\u9898,\u5224\u65ad\u548c\u4fee\u6539\u4e0d\u662f\u539f\u5b50.\u4e5f\u6709\u4e8b\u52a1\u7684\u95ee\u9898,update\u4e86\u4e24\u6761\u6570\u636e\n            \/\/ 4.2. \u628a\u7528\u6237\u4eceRedis\u7684set\u96c6\u5408\u79fb\u9664\n            stringRedisTemplate.opsForSet().remove(key, userId.toString());\n        }\n        return Result.ok();\n    }\n    \/*\u5982\u679cA\u7ebf\u7a0b\u67e5\u5230\u5f53\u524d\u7528\u6237\u6ca1\u70b9\u8d5e\uff0c\u6ca1\u7b49\u8fdb\u884credis\u66f4\u65b0\u64cd\u4f5c\uff0cB\u7ebf\u7a0b\u8fdb\u6765\u67e5\u8be2redis\u5f53\u524d\u7528\u6237\u4e5f\u6ca1\u8fdb\u884c\u70b9\u8d5e\uff0c\u5c31\u4f1a\u8d5e\u4e24\u6b21\n    \u4e00\u822c\u8d26\u53f7\u90fd\u4f1a\u8bbe\u7f6e\u9650\u5236\u57281-5\u53f0\u8bbe\u5907\u5de6\u53f3\u767b\u5f55\uff0c\u672c\u6765\u5e76\u53d1\u5ea6\u5c31\u4e0d\u9ad8\uff0c\u5e76\u4e14\u8fd9\u7c7b\u6570\u636e\u4e5f\u4e0d\u8981\u6c42\u5f3a\u4e00\u81f4\u6027\uff0c\u5b89\u5168\u95ee\u9898\u8fd8\u662f\u5f88\u4f4e\u5f88\u4f4e\u7684\u3002*\/<\/code><\/pre>\n\n\n\n<p><img loading=\"lazy\" decoding=\"async\" height=\"304\" width=\"476\" src=\"https:\/\/i-blog.csdnimg.cn\/direct\/d151d00d998e49a9b76ac4e63d30b240.png\" alt=\"\">\u5b9e\u73b0\u70b9\u8d5e\u548c\u9ad8\u4eae<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u70b9\u8d5e\u6392\u884c\u699c<\/h2>\n\n\n\n<p>\u00a0<img loading=\"lazy\" decoding=\"async\" height=\"363\" width=\"675\" src=\"https:\/\/i-blog.csdnimg.cn\/direct\/dcb0b6dcbf5d4c1abe2799b09e7cc0e4.png\" alt=\"\"><\/p>\n\n\n\n<p>\u597d\u7684\u540c\u5b66\u4eec\uff0c\u521a\u624d\u6211\u5df2\u7ecf\u4e3a\u5927\u5bb6\u603b\u7ed3\u4e86\u63a5\u53e3\u7684\u4fe1\u606f\uff0c\u5e76\u4e14\u8fdb\u884c\u4e86\u68b3\u7406\u3002\u53ef\u4ee5\u770b\u5230\uff0c\u8bf7\u6c42\u65b9\u5f0f\u662fGET\u8bf7\u6c42\uff0c\u8def\u5f84\u662f`\/blog\/likes`\u6216\u8005`\/blog\/likes\/d`\uff0c\u8fd9\u91cc\u7684`d`\u53ef\u80fd\u662f\u6307\u201c\u70b9\u8d5e\u201d\u7684\u610f\u601d\uff0c\u540e\u9762\u8ddf\u7740\u7684\u662f\u5f53\u524d\u8fd9\u7bc7\u7b14\u8bb0\u7684ID\u3002\u6211\u4eec\u8981\u67e5\u7684\u662f\u7ed9\u8fd9\u7bc7\u7b14\u8bb0\u70b9\u8d5e\u7684\u4eba\uff0c\u6240\u4ee5\u53c2\u6570\u5c31\u662f`blogId`\u4e86\u3002\u8fd4\u56de\u7684\u81ea\u7136\u662f\u70b9\u8d5e\u7684\u524d\u4e94\u540d\u4e86\uff0c\u6240\u4ee5\u662f\u4e00\u4e2a\u96c6\u5408\uff0c\u96c6\u5408\u91cc\u88c5\u7684\u662f\u7528\u6237\u4fe1\u606f\u3002\u8fd9\u91cc\u6211\u4eec\u7528\u4e86`UserDTO`\uff0c\u56e0\u4e3a`UserDTO`\u91cc\u628a\u654f\u611f\u4fe1\u606f\u90fd\u5df2\u7ecf\u7ed9\u53bb\u6389\u4e86\uff0c\u6240\u4ee5\u4e0d\u7528\u62c5\u5fc3\u6570\u636e\u6cc4\u6f0f\u7684\u98ce\u9669\u3002\u5728\u8fd9\u4e2a\u5730\u65b9\uff0c\u6211\u4eec\u8981\u8fd4\u56de\u7684\u8fd9\u4e2a\u96c6\u5408\u5c31\u662f\u6240\u8c13\u7684\u524d\u4e94\u540d\uff0c\u4e5f\u5c31\u662f\u6392\u884c\u699c\u91cc\u9762\u7684\u524d\u4e94\u540d\u3002\u4f46\u5728\u8fd9\u5c31\u6709\u4e00\u4e2a\u95ee\u9898\u4e86\uff0c\u6211\u4e0a\u54ea\u53bb\u67e5\u8fd9\u524d\u4e94\u540d\u7684\u7528\u6237\u53bb\uff0c\u800c\u4e14\u662f\u70b9\u8d5e\u7684\u7528\u6237\u3002<\/p>\n\n\n\n<p>\u90a3\u540c\u5b66\u4eec\uff0c\u6211\u4eec\u70b9\u8d5e\u7684\u4fe1\u606f\u90fd\u653e\u5728\u54ea\u513f\u554a\uff1f\u800c\u5728\u4e0a\u4e00\u8282\u8bfe\u5f53\u4e2d\uff0c\u6211\u4eec\u70b9\u8d5e\u662f\u57fa\u4e8e\u4e00\u4e2aRedis\u7684Set\u96c6\u5408\u6765\u5b9e\u73b0\u7684\uff0c\u4e5f\u5c31\u662f\u8bf4\u6211\u73b0\u5728\u8981\u60f3\u67e5\u8be2\u8fd9\u4e9b\u7528\u6237\u4fe1\u606f\uff0c\u6211\u662f\u4e0d\u662f\u5f97\u53bbSet\u96c6\u5408\u6765\u67e5\uff1f\u4f46\u662f\u6211\u8981\u7684\u662f\u524d\u4e94\u540d\uff0cSet\u96c6\u5408\u662f\u6240\u6709\u7684\uff0c\u90a3\u6211\u5c31\u5fc5\u987b\u628aSet\u96c6\u5408\u7684\u5143\u7d20\u7ed9\u5b83\u6392\u4e2a\u5e8f\u554a\u3002\u4f46\u662f\u540c\u5b66\u4eec\uff0cSet\u96c6\u5408\u662f\u6709\u865a\u7684\u5417\uff1f\u663e\u7136\u4e0d\u662f\uff0c\u6211\u4eec\u5f53\u521d\u4e3a\u4ec0\u4e48\u9009Set\u96c6\u5408\u5440\uff0c\u662f\u56e0\u4e3a\u5f53\u521d\u6211\u4eec\u7684\u4e1a\u52a1\u9700\u6c42\u662f\uff1a\u7b2c\u4e00\u8981\u5b58\u591a\u4e2a\u5143\u7d20\uff0c\u4e5f\u5c31\u662f\u96c6\u5408\uff1b\u7b2c\u4e8c\u70b9\u4e3a\u4e00\u3002\u90a3\u8fd9\u4e24\u70b9\u4ed6\u90fd\u6ee1\u8db3\u5440\u3002\u4f46\u73b0\u5728\u6211\u4eec\u53c8\u591a\u4e86\u4e2a\u9700\u6c42\uff0c\u6211\u4eec\u8981\u505a\u6392\u884c\u699c\uff0c\u6240\u4ee5\u6211\u4eec\u7684\u9700\u6c42\u53d8\u6210\u4e86\u4e09\u4e2a\u9700\u6c42\u4e86\uff1a\u8981\u80fd\u591f\u5b58\u591a\u4e2a\u5143\u7d20\uff0c\u8981\u80fd\u4e3a\u4e00\uff0c\u5b8c\u4e86\u8fd8\u80fd\u6392\u5e8f\u3002\u90a3Set\u96c6\u5408\u5c31\u4e0d\u884c\u4e86\uff0c\u6211\u4eec\u8be5\u9009\u8c01\uff1f<\/p>\n\n\n\n<p>\u54ce\uff0c\u5728\u8fd9\u513f\u5462\u6211\u4eec\u53bb\u505a\u4e00\u4e2a\u5bf9\u6bd4\u554a\uff0c\u76ee\u524d\u4e3a\u6b62\u6211\u4eec\u5b66\u4e60\u7684Redis\u96c6\u5408\u603b\u5171\u5c31\u4e09\u79cd\uff0c\u90a3\u8fd9\u4e09\u79cd\u90fd\u662f\u96c6\u5408\uff0c\u6240\u4ee5\u7b2c\u4e00\u6761\u662f\u4e0d\u662f\u5c31\u6ee1\u8db3\u4e86\uff0c\u90a3\u4e48\u8fd8\u5269\u4e24\u6761\u5417\uff0c\u90a3\u4e00\u4e2a\u5c31\u662f\u6392\u5e8f\uff0c\u4e00\u4e2a\u5c31\u662f\u552f\u4e00\u3002\u5728\u8fd9\u5462\u6211\u7ed9\u5927\u5bb6\u5bf9\u6bd4\u7684\u5c31\u662f\u8fd9\u4e09\u70b9\uff0c\u54ea\u4e2a\u5462\uff0c\u7b2c\u4e00\u6392\u5e8f\uff0c\u7b2c\u4e8c\u552f\u4e00\u6027\uff0c\u7b2c\u4e09\u4e2a\u591a\u4e86\u4e00\u4e2a\uff0c\u6211\u4eec\u8981\u5bf9\u6bd4\u4e00\u4e0b\u4ed6\u4eec\u7684\u67e5\u627e\u5143\u7d20\u65f6\u7684\u65b9\u5f0f\u3002\u4e3a\u4ec0\u4e48\u5462\uff1f\u56e0\u4e3a\u5c06\u6765\u6211\u4eec\u9664\u4e86\u53bb\u505a\u6392\u5e8f\u4ee5\u5916\uff0c\u6211\u4eec\u8fd8\u6709\u4e00\u4e2a\u9700\u6c42\u5c31\u662f\u70b9\u8d5e\uff0c\u70b9\u8d5e\u6211\u4eec\u8981\u5224\u65ad\u5b83\u5b58\u4e0d\u5b58\u5728\uff0c\u5bf9\u4e0d\u5bf9\uff0c\u800c\u4f60\u8981\u5224\u65ad\u5b58\u4e0d\u5b58\u5728\uff0c\u4e0d\u5c31\u662f\u67e5\u627e\u5417\uff1f\u6240\u4ee5\u8bf4\u8fd9\u4e2a\u4e5f\u8981\u53bb\u505a\u5bf9\u6bd4\u3002\u90a3\u6765\u4e00\u4e2a\u770b\u554a\uff0c\u9996\u5148Set\u96c6\u5408\uff0c\u5b83\u9996\u5148\u662f\u53ef\u4ee5\u505a\u6392\u5e8f\u7684\uff0c\u4e3a\u4ec0\u4e48\u5462\uff1f\u4ed6\u662f\u4e2a\u94fe\u8868\u5417\uff0c\u90a3\u4ed6\u6309\u4ec0\u4e48\u6392\uff0c\u6309\u7167\u6dfb\u52a0\u987a\u5e8f\uff0c\u8fd8\u6709`lpush`\u548c`rpush`\u4e24\u79cd\uff0c\u5bf9\u4e0d\u5bf9\uff1f\u5982\u679c\u8bf4\u6211\u4eec\u6240\u6709\u7684\u5143\u7d20\u90fd\u662f\u6309`lpush`\u5c31\u63d2\u5165\u7684\uff0c\u90a3\u5143\u7d20\u5462\u5148\u63d2\u5165\u8fdb\u53bb\u7684\uff0c\u662f\u4e0d\u662f\u5728\u6700\u540e\uff0c\u540e\u63d2\u5165\u7684\uff0c\u5728\u6700\u524d\u53d8\u6210\u4e86\u4e00\u4e2a\u6309\u7167\u63d2\u5165\u987a\u5e8f\u7684\u5012\u5e8f\u6392\u5e8f\uff0c\u8fd9\u4e2a\u8ddf\u6211\u4eec\u70b9\u8d5e\u6392\u884c\u699c\u4e0d\u592a\u76f8\u7b26\uff0c\u4f46\u662f\u5982\u679c\u6211\u4eec\u5168\u90e8\u91c7\u7528`rpush`\u5462\uff0c\u5148\u70b9\u8d5e\u5728\u6700\u524d\u8fb9\uff0c\u540e\u70b9\u5728\u6700\u540e\u8fb9\uff0c\u8fd9\u6837\u662f\u4e0d\u662f\u5c31\u521a\u597d\u7b26\u5408\uff1f\u6240\u4ee5\u8bf4\u5b83\u662f\u652f\u6301\u8fd9\u79cd\u6392\u5e8f\u7684\u554a\uff0c\u800cSet\u96c6\u5408\u5c31\u4e0d\u597d\u610f\u601d\u4e86\uff0c\u4e0d\u652f\u6301\u554a\uff0c\u65e0\u6cd5\u6392\u5e8f\uff0c\u800c\u6211\u4eec\u7684Sorted Set\uff0c\u8fd9\u4e2a\u54b1\u4eec\u4e4b\u524d\u662f\u4e0d\u662f\u4e5f\u5b66\u8fc7\u5462\uff1f\u5b83\u53ef\u4ee5\u6392\u5e8f\u7684\uff0c\u6309\u4ec0\u4e48\u6392\u6309\u5206\u6570\uff0c\u4e5f\u5c31\u662f\u8bf4\u6211\u4eec\u5b58\u5165`zset`\u7684\u5143\u7d20\u554a\uff0c\u9664\u4e86\u5143\u7d20\u672c\u8eab\u4ee5\u5916\uff0c\u8fd8\u8981\u5e26\u4e00\u4e2ascore\uff0c\u90a3\u5c31\u5206\u6570\u554a\uff0c\u90a3\u4e48\u8fd9\u4e2ascore\u5206\u6570\u5462\uff0c\u53ef\u4ee5\u662f\u7528\u6237\u81ea\u5b9a\u4e49\u7684\u4efb\u610f\u7684\u4e1c\u897f\uff0c\u90a3\u5982\u679c\u6211\u628a\u5b83\u6309\u7167\u65f6\u95f4\u6233\u554a\u4f5c\u4e3ascore\u503c\u5b58\u8fdb\u53bb\uff0c\u90a3\u8fd9\u6837\u4e00\u6765\u662f\u4e0d\u662f\u4e5f\u80fd\u5b9e\u73b0\u6309\u6dfb\u52a0\u987a\u5e8f\u6392\u5e8f\u4e86\uff1f\u90a3\u60f3\u6dfb\u52a0\u8d8a\u65e9\uff0c\u65f6\u95f4\u8bf4\u662f\u4e0d\u662f\u8d8a\u5c0f\uff0c\u90a3\u5929\u4e0b\u8d8a\u665a\uff0c\u65f6\u95f4\u6233\u8d8a\u5927\uff0c\u8fd9\u6837\u5929\u7136\u662f\u4e0d\u662f\u5c31\u5e26\u6709\u4e00\u4e2a\u987a\u5e8f\u4e86\uff1f\u56e0\u6b64Sorted Set\u80fd\u4e0d\u80fd\u5b9e\u73b0\u6309\u7167\u65f6\u95f4\u6392\u5e8f\u6ca1\u95ee\u9898\uff0c\u8fd9\u4e5f\u5c31\u662f\u8bf4\u7b26\u5408\u8981\u6c42\u7684\u662f\u4e0d\u662f\u5c31\u6709\u4e24\u4e2a\u554a\uff0c\u4ece\u6392\u5e8f\u4e0a\u6765\u8bb2\u554a\uff0c\u90a3\u518d\u4ece\u552f\u4e00\u6027\u4e0a\u6765\u8bb2\u554a\uff0c\u76f4\u63a5\u628alist\u6392\u9664\u4e86\u554a\uff0clist\u662f\u94fe\u8868\uff0c\u65e0\u6cd5\u4fdd\u8bc1\u6570\u636e\u7684\u552f\u4e00\u554a\uff0c\u4ed6\u53ea\u7ba1\u4e00\u5171\u8981\u5f80\u91cc\u9762\u52a0\uff0c\u4f46\u662f\u5462Set\u548cSorted Set\u90fd\u6ee1\u8db3\uff0c\u56e0\u4e3a\u4ed6\u4eec\u5e95\u5c42\u90fd\u6709\u4e00\u4e2a\u54c8\u5e0c\u554a\u54c8\u8868\uff0c\u63a5\u4e0b\u6765\u5b83\u53ef\u4ee5\u5224\u65ad\u5143\u7d20\u662f\u5426\u5b58\u5728\uff0c\u4ece\u800c\u628a\u4e00\u4e9b\u91cd\u590d\u5143\u7d20\u7ed9\u5254\u9664\u6216\u8005\u662f\u8986\u76d6\uff0c\u90a3\u4ece\u67e5\u627e\u65b9\u5f0f\u4e0a\u6765\u8bb2\u5462\uff0c\u6211\u4eec\u7684list\u67e5\u627e\uff0c\u6211\u4eec\u521a\u624d\u8bb2\u8fc7\u4e86\uff0c\u5b83\u5e95\u5c42\u662f\u4ec0\u4e48\u5462\uff0c\u662f\u94fe\u8868\uff0c\u6240\u4ee5\u8bf4\u5462\u5b83\u53ea\u80fd\u6309\u89d2\u6807\u67e5\u627e\u5143\u7d20\uff0c\u6216\u8005\u662f\u9996\u5c3e\u67e5\u627e\u554a\uff0c\u90a3\u610f\u601d\u6211\u60f3\u77e5\u9053\u4e00\u4e2a\u5143\u7d20\u5b58\u4e0d\u5b58\u5728\uff0c\u5b83\u7684\u505a\u6cd5\u53ea\u80fd\u662f\u4fbf\u5229\u4e00\u8fb9\u554a\uff0c\u4f46\u662fSet\u548cSorted Set\u5c31\u4e0d\u4e00\u6837\u4e86\uff0c\u90a3\u4e48\u8fd9\u4e24\u4e2a\u5462\u56e0\u4e3a\u4ed6\u4eec\u5e95\u5c42\u91c7\u7528\u7684\u662f\u54c8\u5e0c\u8868\uff0c\u6240\u4ee5\u8bf4\u4ed6\u4eec\u53ef\u4ee5\u6839\u636e\u5143\u7d20\u505a\u8fd9\u79cd\u54c8\u5e0c\u8fd0\u7b97\uff0c\u5feb\u901f\u5b9a\u4f4d\u5230\u5bf9\u5e94\u7684\u90a3\u4e2a\u6570\u7ec4\u4f4d\u7f6e\uff0c\u7136\u540e\u5462\u53bb\u5224\u65ad\u662f\u5426\u5b58\u5728\uff0c\u6240\u4ee5\u4ed6\u4eec\u7684\u67e5\u627e\u66f4\u52a0\u9ad8\u6548\uff0c\u5bf9\u4e0d\u5bf9\uff0c\u6240\u4ee5\u4ece\u8fd9\u4e09\u70b9\u6765\u770b\uff0c\u54ea\u4e2a\u66f4\u9002\u5408\u554a\uff0c\u5176\u5b9e\u628a\u524d\u4e24\u70b9\u770b\u5b8c\u5c31\u5df2\u7ecf\u627e\u5230\u7b54\u6848\u4e86\uff0c\u662f\u4e0d\u662fSorted Set\u66f4\u7b26\u5408\u6211\u4eec\u7684\u4e1a\u52a1\u9700\u6c42\uff1f\u540c\u5b66\u4eec\uff0c\u53ea\u8981\u4f60\u638c\u63e1\u4e86\u554a\u8fd9\u79cdRedis\u6570\u636e\u7ed3\u6784\u7684\u7279\u70b9\uff0c\u7136\u540e\u4f60\u518d\u7ed3\u5408\u4f60\u7684\u4e1a\u52a1\u9700\u6c42\uff0c\u662f\u4e0d\u662f\u4e00\u76ee\u4e86\u7136\uff0c\u5c31\u80fd\u5feb\u901f\u5b9a\u4f4d\u5230\u5408\u9002\u7684\u6570\u636e\u7c7b\u578b\uff1f\u90a3\u8fd9\u91cc\u5462\u6211\u4eec\u5c31\u9700\u8981\u7528Sorted Set\u6765\u4ee3\u66ff\u6211\u4eec\u7684Set\u96c6\u5408\uff0c\u6539\u9020\u6211\u4eec\u4e4b\u524d\u7684\u70b9\u8d5e\u4e1a\u52a1\u4e86\uff0c\u4f46\u662f\u5728\u8fd9\u5c31\u6709\u4e00\u4e2a\u95ee\u9898\u4e86\uff0cSorted Set\u867d\u7136\u8ddfSet\u7c7b\u4f3c\uff0c\u4f46\u662f\u8fd8\u662f\u5b58\u5728\u5dee\u5f02\u7684\uff0c\u5f88\u591a\u7684\u547d\u4ee4\u4e0a\u662f\u4e0d\u4e00\u6837\u7684\uff0c\u90a3\u6211\u4eec\u6765\u770b\u4e00\u4e0b\u554a\uff0c\u5728\u8fd9\u5462\u6211\u4eec\u4e4b\u524d\u4f7f\u7528\u8fd9\u4e2aSet\u7684\u65f6\u5019\uff0c\u6211\u4eec\u53bb\u6dfb\u52a0\u662f`sadd`\uff0c\u5bf9\u4e0d\u5bf9\u554a\uff0c`sadd`\u53bb\u6dfb\u52a0\u4e00\u4e2a\u5143\u7d20\uff0c\u6211\u4eec\u5c31\u5224\u65ad\u662f\u5426\u5b58\u5728\u53eb`sismember`\uff0c\u5b83\u53ef\u4ee5\u76f4\u63a5\u5224\u65ad\u4e00\u4e2a\u5143\u7d20\u662f\u5426\u5b58\u5728\uff0c\u4f46\u662f\u73b0\u5728\u6211\u4eec\u7528\u7684\u662fSorted Set\uff0cSorted Set\u91cc\u9762\u5c31\u4e0d\u5b58\u5728\u554a\uff0c\u8fd9\u4e2a`sismember`\u8fd9\u6837\u4e00\u4e2a\u547d\u4ee4\u4e86\uff0c\u90a3\u5b83\u6dfb\u52a0\u5143\u7d20\u662f\u4e00\u6837\u7684\uff0c\u90fd\u662f\u53bb`zadd`\uff0c\u4f46\u662f\u5462\u4ed6\u5224\u65ad\u5143\u7d20\u662f\u5426\u5b58\u5728\uff0c\u5b83\u6ca1\u6709\u4e00\u4e2a\u53eb`sismember`\u7684\u6ca1\u6709\uff0c\u90a3\u600e\u4e48\u529e\u554a\uff0c\u90a3\u8fd9\u91cc\u5462\u6211\u4eec\u53ea\u80fd\u7528\u4e00\u79cd\u522b\u7684\u65b9\u5f0f\u554a\uff0c\u5728\u8fd9\u513f\u5462\u6211\u4eec\u4f1a\u4f7f\u7528\u4e00\u4e2a\u53eb\u505a`zscore`\u7684\uff0c\u610f\u601d\u662f\u83b7\u53d6\u6307\u5b9a\u4e00\u4e2a\u5143\u7d20\u5bf9\u5e94\u7684\u5206\u6570\uff0c\u90a3\u4e3a\u4ec0\u4e48\u7528\u5b83\u53ef\u4ee5\u5224\u65ad\u5143\u7d20\u662f\u5426\u5b58\u5728\u5462\uff1f\u6211\u53bb\u83b7\u53d6\u5143\u7d20\u7684\u5206\u6570\uff0c\u5143\u7d20\u5982\u679c\u5b58\u5728\uff0c\u8fd4\u56de\u7684\u81ea\u7136\u5c31\u662f\u5206\u6570\uff0c\u5143\u7d20\u4e0d\u5b58\u5728\uff0c\u8fd4\u56de\u7684\u662f\u4e0d\u662f\u5c31\u662f\u7a7a\u4e86\u554a\uff0c\u4f60\u770b\u6211\u4eec\u53ef\u4ee5\u8bd5\u4e00\u4e0b\uff0c\u73b0\u5728\u6211\u4eec\u901a\u8fc7\u8fd9\u4e2a`zadd`\u554a\u53bb\u6dfb\u52a0\u8fd9\u4e2a\u5143\u7d20\u554a\uff0c\u6bd4\u5982\u8bf4k\u53eb`z1`\u554a\uff0c\u7136\u540e\u5462\u6211\u4e00\u554a\uff0c\u8fd9\u662f\u5206\u6570\u5417\uff0c`m1`\uff0c`m2`\uff0c`m3`\uff0c\u8fd9\u6837\u6211\u662f\u4e0d\u662f\u4e00\u4e0b\u6dfb\u52a0\u4e86\u4e09\u4e2a\u5143\u7d20\uff0c\u597d\u5168\u90e8\u6dfb\u52a0\u8fdb\u53bb\u4e86\uff0c\u90a3\u63a5\u4e0b\u6765\u5462\u6211\u4eec\u5c31\u7528`zscore`\u554a\u53bb\u67e5\u770b\u4e00\u4e0b\uff0c\u8fd9\u4e2a`z1`\u91cc\u8fb9\u7684`m1`\u8fd9\u4e2a\u5143\u7d20\uff0c\u5b83\u7684\u5206\u6570\u662f\u4e0d\u662f\u67e5\u5230\u4e86`m2`\uff0c\u67e5\u5230\u4e86`m3`\uff0c\u67e5\u5230\u4e86`m4`\uff0c\u4e0d\u5b58\u5728\uff0c\u770b\u5230\u6ca1\u6709\uff0c\u8fd4\u56de\u7684\u662f\u4e0d\u662f`null`\uff0c\u4e5f\u5c31\u662f\u7a7a\uff0c\u6240\u4ee5\u8bf4\u6211\u4eec\u5b8c\u5168\u53ef\u4ee5\u901a\u8fc7\u67e5\u5206\u6570\u7684\u5f62\u5f0f\u67e5\u5230\u4e86\u5c31\u5b58\u5728\u67e5\u4e0d\u5230\u662f\u4e0d\u662f\u4e0d\u5b58\u5728\uff0c\u6765\u5224\u65ad\u5143\u7d20\u662f\u5426\u5b58\u5728\uff0c\u5176\u4ed6\u7684\u5c31\u6ca1\u4ec0\u4e48\u592a\u5927\u5dee\u522b\u4e86\u554a\uff0c\u90a3\u5f53\u7136\u6700\u540e\u6211\u4eec\u8981\u53bb\u67e5\u6392\u884c\u699c\uff0c\u6211\u4eec\u600e\u4e48\u67e5\uff0c\u8fd9\u4e2a\u4e4b\u524d\u54b1\u4eec\u8bb2\u8fc7\uff0c\u5176\u5b9e\u5c31\u7528`zrange`\uff0c`range`\u662f\u4ec0\u4e48\u554a\uff0c`range`\u67e5\u8be2\u7684\u662f\u6309\u8303\u56f4\u67e5\u5417\uff0c\u5c31\u662f\u4f60\u8981\u67e5\u627e\u54ea\u4e2a\u8303\u56f4\u5185\u7684\uff0c\u5b83\u5929\u7136\u7684\u4f1a\u5e2e\u4f60\u505a\u6392\u5e8f\u561b\uff0c\u5bf9\u4e0d\u5bf9\uff0c\u5047\u5982\u8bf4\u6211\u4eec\u6309\u65f6\u95f4\u554a\uff0c\u65f6\u95f4\u6233\u63d2\u5165\uff0c\u90a3\u4e48\u5b83\u4f1a\u5929\u7136\u7684\u6309\u7167\u65f6\u95f4\u6233\u4ece\u5c0f\u5230\u5927\u6392\u5e8f\uff0c\u90a3\u663e\u7136\u554a\u6700\u65e9\u63d2\u5165\u7684\u662f\u4e0d\u662f\u5c31\u5728\u6700\u524d\uff0c\u90a3\u8fd9\u65f6\u6211\u4eec\u8981\u67e5\u524d\u4e94\u540d\uff0c\u5176\u5b9e\u5c31\u662f\u67e5\u4ec0\u4e48\u5462\uff0c\u5b83\u91cc\u8fb9\u4ece0~4\u7684\u8fd9\u4e9b\u554a\uff0c01234\u4e0d\u521a\u597d\u4e94\u4e2a\u561b\uff0c\u90a3\u5c31\u524d\u4e94\u540d\u554a\uff0c\u5c31\u8fd9\u4e48\u6765\u67e5\u7684\u554a\uff0c\u6240\u4ee5\u5462\u8fd9\u4e2a\u5c06\u6765\u6211\u4eec\u8981\u67e5\u524d\u4e94\u540d\u554a\uff0c\u4e5f\u5c31\u77e5\u9053\u8be5\u600e\u4e48\u505a\u4e86\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>127.0.0.1:6379&gt; ZADD z1 1 m1 2 m2 3 m3\n(integer) 3\n127.0.0.1:6379&gt; ZSCORE z1 m1\n\"1\"\n127.0.0.1:6379&gt; ZSCORE z1 m3\n\"3\"\n127.0.0.1:6379&gt; ZSCORE z1 m9\n(nil)\n127.0.0.1:6379&gt; ZRANGE z1 0 4\n1) \"m1\"\n2) \"m2\"\n3) \"m3\"\n<\/code><\/pre>\n\n\n\n<pre class=\"wp-block-code\"><code>    @Override\n    public Result likeBlog(Long id) {\n        \/\/ 1. \u83b7\u53d6\u767b\u5f55\u7528\u6237\n        Long userId = UserHolder.getUser().getId();\n            \/\/ 2. \u5224\u65ad\u5f53\u524d\u767b\u5f55\u7528\u6237\u662f\u5426\u5df2\u7ecf\u70b9\u8d5e\n        String key = \"blog:liked:\" + id;\n        \/\/Boolean isMember = stringRedisTemplate.opsForSet().isMember(key, userId.toString());\n        Double score = stringRedisTemplate.opsForZSet().score(key, userId.toString());\n        if(score == null) {\n            \/\/ 3. \u5982\u679c\u672a\u70b9\u8d5e\uff0c\u53ef\u4ee5\u70b9\u8d5e\n            \/\/ 3.1. \u6570\u636e\u5e93\u70b9\u8d5e\u6570 + 1\n            boolean isSuccess = update().setSql(\"liked = liked + 1\").eq(\"id\", id).update();\n            \/\/ 3.2. \u4fdd\u5b58\u7528\u6237\u5230Redis\u7684set\u96c6\u5408 zadd key value score\n            if(isSuccess) {\n                stringRedisTemplate.opsForZSet().add(key,  userId.toString(),System.currentTimeMillis());\/\/\u6b64\u5904\u5e94\u8be5\u62f7\u8d1dif(isSuccess)\u5224\u65ad\u6570\u636e\u66f4\u65b0\u6210\u529f\u624d\u66f4\u65b0redis\n            }\n        }else {\n            \/\/ 4. \u5982\u679c\u5df2\u70b9\u8d5e\uff0c\u53d6\u6d88\u70b9\u8d5e\n            \/\/ 4.1. \u6570\u636e\u5e93\u70b9\u8d5e\u6570 - 1\n            boolean isSuccess = update().setSql(\"liked = liked - 1\").eq(\"id\", id).update();\n            \/\/\u8fd9\u91cc\u6709\u7ebf\u7a0b\u5b89\u5168\u95ee\u9898,\u5224\u65ad\u548c\u4fee\u6539\u4e0d\u662f\u539f\u5b50.\u4e5f\u6709\u4e8b\u52a1\u7684\u95ee\u9898,update\u4e86\u4e24\u6761\u6570\u636e\n            \/\/ 4.2. \u628a\u7528\u6237\u4eceRedis\u7684set\u96c6\u5408\u79fb\u9664\n            stringRedisTemplate.opsForZSet().remove(key, userId.toString());\n        }\n        return Result.ok();\n    }\n\n\n\n    private void isBlogLiked(Blog blog) {\n        \/\/ 1. \u83b7\u53d6\u767b\u5f55\u7528\u6237\n        Long userId = UserHolder.getUser().getId();\n        \/\/ 2. \u5224\u65ad\u5f53\u524d\u767b\u5f55\u7528\u6237\u662f\u5426\u5df2\u7ecf\u70b9\u8d5e\n        String key = \"blog:liked:\" + blog.getId();\n        Double score = stringRedisTemplate.opsForZSet().score(key, userId.toString());\n        blog.setIsLike(score!=null);\n    }<\/code><\/pre>\n\n\n\n<p>\u8fd9\u91cc\u8bb0\u5f97\u6539\u5b8c\u8c03\u8bd5\u7684\u65f6\u5019\u628a\u4e4b\u524dRedis\u7684\u7f13\u5b58\u5220\u9664\u4e86<\/p>\n\n\n\n<p>\u795e\u4e86\uff0c\u6709\u7684\u5e16\u5b50\u53ef\u4ee5\u53d6\u6d88\u8d5e\uff0c\u6709\u7684\u5c31\u4e0d\u80fd\uff0c\u54e6\u725b\u6279<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>    @GetMapping(\"\/likes\/{id}\")\n    public Result queryBlogLikes(@PathVariable(\"id\") Long id) {\n        return blogService.queryBlogLikes(id);\n    }<\/code><\/pre>\n\n\n\n<pre class=\"wp-block-code\"><code>    \/\/\u4f7f\u7528map\u65b9\u6cd5\u5c06\u6bcf\u4e2a\u5143\u7d20\u8f6c\u6362\u4e3a\u5bf9\u5e94\u7684Long\u7c7b\u578b\uff0c\u5e76\u4f7f\u7528collect\u65b9\u6cd5\u5c06\u7ed3\u679c\u6536\u96c6\u5230\u4e00\u4e2aList\u4e2d\n    @Override\n    public Result queryBlogLikes(Long id) {\n        String key = BLOG_LIKED_KEY + id;\n        \/\/ 1. \u67e5\u8be2top5\u7684\u70b9\u8d5e\u7528\u6237 zrange key 0 4\n        Set&lt;String&gt; top5 = stringRedisTemplate.opsForZSet().range(key,0,4);\n            if (top5 == null || top5.isEmpty()) {\n                return Result.ok(Collections.emptyList());\n            }\n            \/\/ 2. \u89e3\u6790\u51fa\u5176\u4e2d\u7684\u7528\u6237id\n            List&lt;Long&gt; ids = top5.stream().map(Long::valueOf).collect(Collectors.toList());\n            \/\/ 3. \u6839\u636e\u7528\u6237id\u67e5\u8be2\u7528\u6237\n            List&lt;UserDTO&gt; userDTOS = userService.listByIds(ids).stream()\n                    .map(user -&gt; BeanUtil.copyProperties(user, UserDTO.class))\n                    .collect(Collectors.toList());\n            \/\/ 4. \u8fd4\u56de\n            return Result.ok(userDTOS);\n        }\n\n\n\n    private void isBlogLiked(Blog blog) {\n        \/\/ 1. \u83b7\u53d6\u767b\u5f55\u7528\u6237\n        \/\/return\u524d\u53ef\u4ee5\u628aisLike\u8bbe\u4e3anull\u6216\u8005false\uff0c\u4e0d\u7136\u8d26\u53f7\u9000\u51fa\u767b\u5f55\u518d\u6253\u5f00\u9996\u9875\u4f1a\u6b8b\u7559\u4e0a\u4e00\u4e2a\u8d26\u53f7\u7684\u70b9\u8d5e\u72b6\u6001\u3002\n        UserDTO user = UserHolder.getUser();\n        if (user == null) {\n            return;\n        }\n        Long userId = UserHolder.getUser().getId();\n        \/\/ 2. \u5224\u65ad\u5f53\u524d\u767b\u5f55\u7528\u6237\u662f\u5426\u5df2\u7ecf\u70b9\u8d5e\n        String key = \"blog:liked:\" + blog.getId();\n        Double score = stringRedisTemplate.opsForZSet().score(key, userId.toString());\n        blog.setIsLike(score!=null);\n    }<\/code><\/pre>\n\n\n\n<p><img loading=\"lazy\" decoding=\"async\" height=\"74\" width=\"221\" src=\"https:\/\/i-blog.csdnimg.cn\/direct\/5faa532c20754cfc82e2cf34d7a58a59.png\" alt=\"\"><\/p>\n\n\n\n<p>return\u524d\u53ef\u4ee5\u628aisLike\u8bbe\u4e3anull\u6216\u8005false\uff0c\u4e0d\u7136\u8d26\u53f7\u9000\u51fa\u767b\u5f55\u518d\u6253\u5f00\u9996\u9875\u4f1a\u6b8b\u7559\u4e0a\u4e00\u4e2a\u8d26\u53f7\u7684\u70b9\u8d5e\u72b6\u6001\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>    \/\/\u4f7f\u7528map\u65b9\u6cd5\u5c06\u6bcf\u4e2a\u5143\u7d20\u8f6c\u6362\u4e3a\u5bf9\u5e94\u7684Long\u7c7b\u578b\uff0c\u5e76\u4f7f\u7528collect\u65b9\u6cd5\u5c06\u7ed3\u679c\u6536\u96c6\u5230\u4e00\u4e2aList\u4e2d\n    @Override\n    public Result queryBlogLikes(Long id) {\n        String key = BLOG_LIKED_KEY + id;\n        \/\/ 1. \u67e5\u8be2top5\u7684\u70b9\u8d5e\u7528\u6237 zrange key 0 4\n        Set&lt;String&gt; top5 = stringRedisTemplate.opsForZSet().range(key,0,4);\n            if (top5 == null || top5.isEmpty()) {\n                return Result.ok(Collections.emptyList());\n            }\n            \/\/ 2. \u89e3\u6790\u51fa\u5176\u4e2d\u7684\u7528\u6237id\n            List&lt;Long&gt; ids = top5.stream().map(Long::valueOf).collect(Collectors.toList());\n            \/\/ 3. \u6839\u636e\u7528\u6237id\u67e5\u8be2\u7528\u6237\n            String idStr = StrUtil.join(\",\",ids);\n            List&lt;UserDTO&gt; userDTOS = userService.query().in(\"id\",ids)\n                    .last(\"ORDER BY FIELD(id,\"+idStr+\")\").list()\n                    .stream()\n                    .map(user -&gt; BeanUtil.copyProperties(user, UserDTO.class))\n                    .collect(Collectors.toList());\n            \/\/ 4. \u8fd4\u56de\n            return Result.ok(userDTOS);\n        }<\/code><\/pre>\n\n\n\n<p><img loading=\"lazy\" decoding=\"async\" height=\"72\" width=\"254\" src=\"https:\/\/i-blog.csdnimg.cn\/direct\/bd470d93e77a49e99f70f4cf2eef7780.png\" alt=\"\"><img loading=\"lazy\" decoding=\"async\" height=\"15\" width=\"15\" src=\"blob:https:\/\/eve2333.top\/36f0f1cd-0fe2-4ab0-9ef9-759dda1e01f6\"><\/p>\n\n\n\n<p>\u597d\u7684\u540c\u5b66\u4eec\uff0c\u63a5\u4e0b\u6765\u6211\u4eec\u9700\u8981\u5bf9\u539f\u6765\u7684\u4e1a\u52a1\u505a\u4e00\u4e9b\u6539\u9020\u3002\u9996\u5148\uff0c\u5728\u4e4b\u524d\u7684\u70b9\u8d5e\u4e1a\u52a1\u4e2d\uff0c\u6211\u4eec\u4f7f\u7528\u7684\u662fRedis\u7684Set\u96c6\u5408\u5b58\u50a8\u6570\u636e\uff0c\u73b0\u5728\u9700\u8981\u6539\u4e3aSorted Set\uff08\u5373ZSet\uff09\u3002\u56e0\u6b64\uff0c\u539f\u672c\u4f7f\u7528StringTemplate\u7684Set\u64cd\u4f5c\u9700\u8981\u8c03\u6574\u4e3aZSet\u64cd\u4f5c\u3002\u6dfb\u52a0\u6570\u636e\u65f6\uff0c\u9700\u8981\u6307\u5b9a\u4e09\u4e2a\u53c2\u6570\uff1akey\u3001value\u548c\u5206\u6570\u3002\u8fd9\u91cc\u6211\u4eec\u4f7f\u7528\u65f6\u95f4\u6233\u4f5c\u4e3a\u5206\u6570\uff0c\u53ef\u4ee5\u901a\u8fc7System.currentTimeMillis()\u83b7\u53d6\u5f53\u524d\u6beb\u79d2\u6570\u3002\u56e0\u6b64\uff0c\u6dfb\u52a0\u6570\u636e\u7684\u547d\u4ee4\u76f8\u5f53\u4e8eZADD key score value\u3002<\/p>\n\n\n\n<p>\u5220\u9664\u64cd\u4f5c\u5219\u4f7f\u7528ZSet\u7684remove\u65b9\u6cd5\uff0c\u8fd9\u90e8\u5206\u4fdd\u6301\u4e0d\u53d8\u3002\u5224\u65ad\u7528\u6237\u662f\u5426\u5df2\u70b9\u8d5e\u65f6\uff0c\u4e4b\u524d\u53ef\u80fd\u4f7f\u7528\u7684\u662fSet\u7684isMember\u65b9\u6cd5\uff0c\u73b0\u5728\u9700\u8981\u6539\u4e3a\u901a\u8fc7ZSet\u7684score\u65b9\u6cd5\u83b7\u53d6\u7528\u6237\u7684\u5206\u6570\u3002\u5982\u679c\u8fd4\u56de\u7684score\u4e3anull\uff0c\u8868\u793a\u7528\u6237\u672a\u70b9\u8d5e\uff1b\u53cd\u4e4b\u5219\u5df2\u70b9\u8d5e\u3002<\/p>\n\n\n\n<p>\u63a5\u4e0b\u6765\uff0c\u9664\u4e86\u70b9\u8d5e\u903b\u8f91\uff0c\u8fd8\u9700\u8981\u4fee\u6539\u67e5\u8be2\u903b\u8f91\u3002\u5728\u6839\u636eID\u67e5\u8be2\u548c\u5206\u9875\u67e5\u8be2\u65f6\uff0c\u90fd\u4f1a\u8c03\u7528isBlogLiked\u65b9\u6cd5\u5224\u65ad\u5f53\u524d\u7528\u6237\u662f\u5426\u70b9\u8d5e\u8fc7\u8be5\u535a\u5ba2\u3002\u8fd9\u91cc\u540c\u6837\u9700\u8981\u5c06\u5224\u65ad\u65b9\u5f0f\u6539\u4e3a\u4f7f\u7528ZSet\u7684score\u65b9\u6cd5\uff0c\u68c0\u67e5\u8fd4\u56de\u7684\u5206\u6570\u662f\u5426\u4e3anull\uff0c\u4ece\u800c\u786e\u5b9a\u70b9\u8d5e\u72b6\u6001\u3002<\/p>\n\n\n\n<p>\u6d4b\u8bd5\u65f6\uff0c\u9996\u5148\u6e05\u7a7aRedis\u4e2d\u7684\u65e7\u6570\u636e\uff0c\u91cd\u542f\u670d\u52a1\u540e\u8fdb\u884c\u6d4b\u8bd5\u3002\u70b9\u8d5e\u64cd\u4f5c\u6210\u529f\u540e\uff0c\u68c0\u67e5Redis\u4e2d\u7684\u6570\u636e\u7ed3\u6784\u662f\u5426\u53d8\u4e3aZSet\uff0c\u4e14\u5206\u6570\u4e3a\u65f6\u95f4\u6233\u3002\u91cd\u590d\u70b9\u8d5e\u6216\u53d6\u6d88\u64cd\u4f5c\u65f6\uff0c\u786e\u4fdd\u903b\u8f91\u6b63\u786e\u3002<\/p>\n\n\n\n<p>\u63a5\u4e0b\u6765\u5b9e\u73b0\u70b9\u8d5e\u5217\u8868\u67e5\u8be2\u529f\u80fd\u3002\u5728BlogController\u4e2d\u6dfb\u52a0\u65b0\u7684\u67e5\u8be2\u63a5\u53e3\uff0c\u8c03\u7528BlogService\u7684queryBlogLikes\u65b9\u6cd5\u3002\u8be5\u65b9\u6cd5\u9996\u5148\u4f7f\u7528ZSet\u7684range\u547d\u4ee4\u83b7\u53d6\u524d5\u4e2a\u70b9\u8d5e\u7528\u6237\u7684ID\uff080\u52304\u7684\u7d22\u5f15\uff09\uff0c\u7136\u540e\u5c06\u8fd9\u4e9bID\u89e3\u6790\u4e3aLong\u7c7b\u578b\u5217\u8868\u3002\u63a5\u7740\uff0c\u6839\u636e\u8fd9\u4e9bID\u67e5\u8be2\u7528\u6237\u4fe1\u606f\uff0c\u5e76\u8f6c\u6362\u4e3aUserDTO\u5217\u8868\u8fd4\u56de\u3002\u9700\u8981\u6ce8\u610f\u7684\u662f\uff0c\u5982\u679c\u67e5\u8be2\u7ed3\u679c\u4e3a\u7a7a\uff0c\u5e94\u8fd4\u56de\u7a7a\u5217\u8868\u907f\u514d\u7a7a\u6307\u9488\u5f02\u5e38\u3002<\/p>\n\n\n\n<p>\u5728\u67e5\u8be2\u7528\u6237\u4fe1\u606f\u65f6\uff0c\u76f4\u63a5\u4f7f\u7528MyBatis-Plus\u7684listByIds\u65b9\u6cd5\u53ef\u80fd\u65e0\u6cd5\u4fdd\u8bc1\u8fd4\u56de\u987a\u5e8f\u4e0e\u4f20\u5165ID\u987a\u5e8f\u4e00\u81f4\u3002\u6b64\u65f6\u9700\u8981\u624b\u52a8\u62fc\u63a5SQL\u8bed\u53e5\uff0c\u4f7f\u7528ORDER BY FIELD(id, id1, id2,...)\u786e\u4fdd\u7ed3\u679c\u987a\u5e8f\u3002\u5177\u4f53\u5b9e\u73b0\u65f6\uff0c\u5c06ID\u5217\u8868\u62fc\u63a5\u4e3a\u9017\u53f7\u5206\u9694\u7684\u5b57\u7b26\u4e32\uff0c\u5e76\u901a\u8fc7MyBatis-Plus\u7684last\u65b9\u6cd5\u6dfb\u52a0\u81ea\u5b9a\u4e49\u6392\u5e8f\u8bed\u53e5\u3002<\/p>\n\n\n\n<p>\u6d4b\u8bd5\u8fc7\u7a0b\u4e2d\u53ef\u80fd\u51fa\u73b0\u672a\u767b\u5f55\u7528\u6237\u8bbf\u95ee\u5bfc\u81f4\u7684\u7a7a\u6307\u9488\u5f02\u5e38\uff0c\u9700\u5728isBlogLiked\u65b9\u6cd5\u4e2d\u589e\u52a0\u7528\u6237\u767b\u5f55\u72b6\u6001\u5224\u65ad\uff0c\u672a\u767b\u5f55\u7528\u6237\u76f4\u63a5\u8fd4\u56de\uff0c\u907f\u514d\u6267\u884c\u540e\u7eed\u67e5\u8be2\u903b\u8f91\u3002<\/p>\n\n\n\n<p>\u6700\u540e\uff0c\u9a8c\u8bc1\u70b9\u8d5e\u5217\u8868\u529f\u80fd\u662f\u5426\u6b63\u5e38\uff0c\u786e\u4fdd\u8fd4\u56de\u7684\u7528\u6237\u987a\u5e8f\u4e0e\u70b9\u8d5e\u65f6\u95f4\u987a\u5e8f\u4e00\u81f4\uff0c\u5e76\u5904\u7406\u53ef\u80fd\u56e0\u6570\u636e\u5e93\u67e5\u8be2\u987a\u5e8f\u4e0d\u4e00\u81f4\u5bfc\u81f4\u7684\u663e\u793a\u95ee\u9898\u3002<\/p>\n\n\n\n<p><s>\u597d\u7684\u540c\u5b66\u4eec\uff0c\u63a5\u4e0b\u6765\u6211\u4eec\u9700\u8981\u5bf9\u539f\u6765\u7684\u4e1a\u52a1\u505a\u4e00\u4e9b\u6539\u9020\u3002\u4ec0\u4e48\u6539\u9020\u5462\uff1f\u9996\u5148\uff0c\u5728\u4e4b\u524d\u6211\u4eec\u7684\u70b9\u8d5e\u4e1a\u52a1\u662f\u5f80Redis\u7684Set\u96c6\u5408\u5b58\u50a8\uff0c\u73b0\u5728\u4e0d\u884c\u4e86\uff0c\u6211\u4eec\u8981\u628a\u5b83\u5f80Sorted Set\uff0c\u4e5f\u5c31\u662fzset\u91cc\u5b58\u3002\u6240\u4ee5\u8fd9\u5757String template\uff0c\u8fd9\u4e0d\u662fset\u4e86\uff0c\u6211\u4eec\u8981\u91c7\u7528Sorted Set\uff0c\u5728\u8fd9\u91cc\u9762\u5b83\u53ebzset\u53bb\u505a\u8fd9\u4e2a\u64cd\u4f5c\u3002\u6dfb\u52a0\u7684\u65f6\u5019\u554a\uff0c\u9700\u8981\u6307\u5b9a\u4e09\u4e2a\uff0c\u4e00\u4e2a\u662fkey\uff0c\u4e00\u4e2a\u662fvalue\uff0c\u4e00\u4e2a\u662f\u5206\u6570\u3002\u6240\u4ee5\u5462\uff0c\u6700\u540e\u8fd8\u5dee\u4e00\u4e2a\u5206\u6570\uff0c\u8fd9\u4e2a\u5206\u6570\u6211\u4eec\u8bf4\u4e86\uff0c\u7528\u65f6\u95f4\u6233\u5bf9\u4e0d\u5bf9\uff0c\u6211\u4eec\u53ef\u4ee5\u7528system.time\u770b\u770b\u6bcf\u6beb\u79d2\u5c31\u884c\u4e86\uff0c\u6240\u4ee5\u8fd9\u5757\u8fd9\u4e2a\u547d\u4ee4\u5462\uff0c\u5176\u5b9e\u5c31\u76f8\u5f53\u4e8e\u662fzadd 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id\u54e6\uff0c\u5982\u679c\u4f60\u76f4\u63a5\u62dcd\u7684\u8bdd\uff0c\u90a3\u4e0d\u5c31\u8fd8\u662f\u4e00\u5728\u524d\u4e94\u5728\u540e\u5417\uff0c\u6240\u4ee5\u4ed6\u9ed8\u8ba4\u5176\u5b9e\u5c31\u662f\u8fd9\u6837\uff0c\u6240\u4ee5\u4e00\u4ee3\u524d\u4e94\u4ee3\u540e\uff0c\u800c\u800c\u662fby\u4ec0\u4e48\u800c\u662fby field\u554a\uff0cfield\u662f\u4ec0\u4e48\u610f\u601d\uff0c\u5b57\u6bb5\u54ea\u4e2a\u5b57\u6bb5id\uff0c\u7136\u540eid\u7684\u4ec0\u4e48\u987a\u5e8f\u5462\uff0cd\u7684\u987a\u5e8f\uff0c\u8fd9\u4e2a\u65f6\u5019\u4f60\u8981\u624b\u52a8\u6307\u5b9a\u554a\uff0c\u4e94\u4e00\u4f60\u8981\u624b\u52a8\u6307\u5b9a\uff0c\u5c31\u662f\u4f60\u8981\u544a\u8bc9\u4ed6\u6211\u8981\u6309\u7167\u4ec0\u4e48\u987a\u5e8f\u5bf9\u554a\uff0c\u6211\u5148\u4e94\u518d\u4e00\uff0c\u4f60\u544a\u8bc9\u4ed6\u597d\uff0c\u8fd9\u4e2a\u65f6\u5019\u6211\u4eec\u518d\u6765\u770b\u4e00\u4e0b\u662f\u4e0d\u662f\u884c\u4e86\uff0c\u5bf9\u4e0d\u5bf9\uff0c\u4e5f\u5c31\u662f\u8bf4\u4f60\u8981\u7528order by field\uff0c\u7136\u540e\u540e\u8fb9\u5462\u8fd9\u4e2a\u987a\u5e8f\u4e00\u5b9a\u8981\u7ed9\u4f60\u4f20\u9012\uff0c\u987a\u5e8f\u4e00\u81f4\u5c31ok\u4e86\uff0c\u90a3\u4e5f\u5c31\u662f\u8bf4\u6211\u4eec\u8fd9\u4e2a\u67e5\u8be2\u554a\uff0c\u6211\u4eec\u56de\u5230\u6211\u4eec\u7684idea\u662f\u4e0d\u662f\u8981\u505a\u6539\u9020\u4e86\uff0c\u6211\u4eec\u54ea\u4e2a\u67e5\u8be2\u8fd9\u4e2a\u6211\u4eec\u73b0\u5728\u7528\u7684\u7c7b\u4f3cby d4\uff0c\u7ed3\u679c\u53d1\u73b0\u4e0d\u884c\u554a\uff0c\u4eba\u5bb6\u4e0d\u73a9\u8fd9\u4e00\u5957\uff0c\u4f60\u5fc5\u987b\u52a0\u6cb9\uff0c\u5fb7\u8d25\u8fd9\u4e2ain\u4e0d\u884c\u600e\u4e48\u529e\uff0c\u8fd8\u597d\u6211\u4eec\u7684my base plus\u554a\uff0c\u5b83\u63d0\u4f9b\u81ea\u5b9a\u4e49\u67e5\u8be2\u7684\u529f\u80fd\uff0c\u8fd9\u91cc\u7528query\uff0c\u7136\u540e\u7528\u4ec0\u4e48\u5462\uff0cquery\u7528in\u5bf9\u5427\uff0cid\u561b\u540e\u8fb9\u8ddf\u7684\u662fd4\uff0c\u8fd9\u6837\u8fd9\u4e00\u5757\u554a\uff0c\u5c31\u7b49\u4e8e\u8fd9\u5757i d in\u7684\uff0c\u90a3\u540e\u9762order by\u600e\u4e48\u529e\uff0c\u8fd9\u4e2a\u5730\u65b9\u540e\u9762\u4e0d\u80fd\u76f4\u63a5\u5199order by\u554a\uff0c\u56e0\u4e3a\u4ed6\u8fd9\u4e2aorder by\u4e5f\u662f\u4e0d\u652f\u6301\u90a3\u4e2afeel\u7684\u529f\u80fd\uff0c\u90a3\u600e\u4e48\u529e\uff0c\u8fd9\u91cc\u53ea\u80fd\u662f\u624b\u5199\uff0c\u7528\u4e00\u4e2alast last\u5c31\u662f\u6700\u540e\u4e00\u6761sql\u8bed\u53e5\u7684\u610f\u601d\uff0c\u4e5f\u5c31\u662f\u8bf4\u5b83\u4f1a\u81ea\u52a8\u7684\u5728\u539f\u6709\u7684sql\u8bed\u53e5\uff0c\u540e\u9762\u62fc\u63a5\u554a\uff0c\u62fc\u63a5\u4ec0\u4e48\u5462\uff0c\u4f60\u624b\u5199\u5457order by\u5c31\u662f\u8fd9\u4e2a\u90a3\u662f\u5199\uff0c\u4f46\u662f\u624b\u5199\u8fd9\u91cc\u6709\u4e2a\u95ee\u9898\u554a\uff0c\u540c\u5b66\u4eec\uff0c\u4f60\u5728\u8fd9\u513f\u624b\u5199\u8fd9\u4e2a\u554a\uff0c\u4f60\u8fd9\u5757\u624b\u5199\u7684\u662f\u8fd9\u4e2a\uff0c\u4f46\u662f\u4f60\u8fd9\u4e2aorder by field\uff0c\u4f60\u8fd9\u4e2a\u4e94\u8ddf\u4e00\u4e0d\u80fd\u5199\u6b7b\u5440\uff0c\u4f60\u8fd9\u91cc\u7684\u4e94\u548c\u4e00\u662f\u4e0d\u662f\u8fd9\u91cc\u7684id\uff0c\u62fc\u6210\u7684\u5b57\u7b26\u4e32\u554a\uff0c\u600e\u4e48\u529e\uff0c\u597d\u8fd9\u91cc\u6211\u4eec\u8981\u628aid\u62fc\u5b57\u7b26\u4e32\uff0c\u6211\u4eec\u7528\u4e00\u4e2as t r youtube.join joy\uff0c\u5c31\u662f\u62fc\u63a5\u7684\u610f\u601d\uff0c\u7528\u4ec0\u4e48\u62fc\u97f3\uff0c\u7528\u9017\u53f7\u554a\u628a\u8c01\u62fc\u4e86\uff0c\u628a\u8fd9\u4e2ai d4 \u62fc\u4e86\uff0c\u90a3\u4e48\u5b83\u5c31\u4f1a\u81ea\u52a8\u7684\u5e2e\u4f60\u62fc\u63a5\u6210\u4e00\u4e2ai d\u7684\uff0cs t r\u5b57\u7b26\u4e32\uff0c\u90a3\u4e48\u8fd9\u4e2a\u65f6\u5019\u4f60\u628a\u5b83\u62fc\u5230\u8fd9\u4e2a\u5730\u65b9\uff0c\u800c\u4e0d\u662f\u5199\u6b7b\uff0c\u662f\u4e0d\u662f\u5c31ok\u4e86\uff0c\u770b\u770b\u8fd9\u6837\u4e0d\u5c31\u5b8c\u4e86\u5417\uff0c\u5bf9\u4e0d\u5bf9\uff0c\u7136\u540e\u70b9list\u554a\u5c31\u884c\u4e86\uff0c\u90a3\u4e5f\u5c31\u662f\u8bf4\u6211\u4eec\u5229\u7528\u8fd9\u4e2aquery\u554a\uff0c\u5148\u5370\u5728last\uff0c\u5176\u5b9e\u5c31\u662f\u5b9e\u73b0\u4e86\u8fd9\u6837\u4e00\u6761sql\u8bed\u53e5\uff0c\u5f53\u7136\u4e86\uff0c\u6211\u4eec\u53ef\u4ee5\u628a\u5408\u4e00\u6761\uff0c\u8fd9\u6837\u4f60\u5c31\u77e5\u9053\u8fd9\u4e00\u884c\u5c31\u662f\u4e00\u6761sql\u8bed\u53e5\uff0c\u5b9e\u73b0\u4e86\u8fd9\u4e2ader by\uff0c\u7136\u540e\u5462\u518d\u53bb\u505a\u540e\u9762\u7684\u903b\u8f91\u5c31\u884c\u4e86\u3002<\/s><\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u597d\u53cb\u5173\u6ce8<\/h2>\n\n\n\n<p>\u4ed6\u8fd8\u4f1a\u53d1\u9001\u4e00\u4e2a\u8bf7\u6c42\u53bb\u67e5\u8be2\u662f\u5426\u5df2\u7ecf\u5173\u6ce8\u8fc7\u5f53\u524d\u7528\u6237\u3002\u8fd9\u4e2a\u67e5\u8be2\u7684\u63a5\u53e3\u53eb\u505a<code>follow_or_not<\/code>\uff0c\u4ece\u540d\u5b57\u4e0a\u5c31\u80fd\u770b\u51fa\uff0c\u662f\u7528\u6765\u68c0\u67e5\u662f\u5426\u5173\u6ce8\u4e86\u67d0\u4e2a\u7528\u6237\u3002\u5728\u63a5\u53e3\u4e2d\uff0c\u540e\u9762\u8ddf\u7740\u7684\u662f\u7528\u6237\u7684ID\uff0c\u4e5f\u5c31\u662f\u4f60\u60f3\u8981\u67e5\u8be2\u662f\u5426\u5173\u6ce8\u8fc7\u7684\u90a3\u4e2a\u7528\u6237\u7684ID\u3002\u63a5\u53e3\u4f1a\u8fd4\u56de\u4e00\u4e2a\u5e03\u5c14\u503c\uff0c<code>true<\/code>\u8868\u793a\u5df2\u7ecf\u5173\u6ce8\uff0c<code>false<\/code>\u8868\u793a\u8fd8\u6ca1\u6709\u5173\u6ce8\u3002\u8fd9\u6837\u9875\u9762\u4e0a\u5c31\u53ef\u4ee5\u6839\u636e\u8fd9\u4e2a\u7ed3\u679c\u6765\u6e32\u67d3\u51fa\u4e0d\u540c\u7684\u6548\u679c\u3002<\/p>\n\n\n\n<p>\u6240\u4ee5\u8fd9\u8282\u8bfe\u6211\u4eec\u8981\u5b9e\u73b0\u8fd9\u4e24\u4e2a\u63a5\u53e3\uff0c\u4e00\u4e2a\u662f\u5173\u6ce8\u548c\u53d6\u5173\uff0c\u53e6\u4e00\u4e2a\u662f\u67e5\u770b\u6709\u6ca1\u6709\u5173\u6ce8\uff0c\u8fd9\u4e24\u4e2a\u63a5\u53e3\u3002\u7528\u6237\u5173\u6ce8\u5b9e\u9645\u4e0a\u63cf\u8ff0\u7684\u662f\u7528\u6237\u4e0e\u7528\u6237\u4e4b\u95f4\u7684\u5173\u7cfb\uff0c\u5bf9\u5427\uff1f\u4e00\u4e2a\u7528\u6237\u53ef\u4ee5\u5173\u6ce8\u5f88\u591a\u5176\u4ed6\u7684\u7528\u6237\uff0c\u5f53\u7136\u4ed6\u81ea\u5df1\u4e5f\u53ef\u4ee5\u88ab\u5f88\u591a\u7528\u6237\u5173\u6ce8\uff0c\u5bf9\u5427\uff1f\u90a3\u4e5f\u5c31\u662f\u8bf4\u7528\u6237\u4e0e\u7528\u6237\u4e4b\u95f4\u7684\u8fd9\u79cd\u5173\u6ce8\u7684\u5173\u7cfb\u662f\u4e00\u79cd\u591a\u5bf9\u591a\u7684\u5173\u7cfb\u3002\u56e0\u6b64\u6211\u4eec\u8981\u60f3\u5728\u6570\u636e\u5e93\u91cc\u8bb0\u5f55\u8fd9\u79cd\u5173\u7cfb\uff0c\u80af\u5b9a\u662f\u8981\u6709\u4e00\u5f20\u4e2d\u95f4\u8868\u6765\u5b9e\u73b0\u3002<\/p>\n\n\n\n<p>\u5728\u8fd9\u91cc\u6211\u4eec\u6709\u4e00\u5f20\u8868\u53eb\u505a<code>tp_follow<\/code>\uff0c\u65e2\u7136\u662f\u4e2d\u95f4\u8868\uff0c\u5c31\u8bb0\u5f55\u7528\u6237\u4e4b\u95f4\u7684\u5173\u7cfb\uff0c\u6240\u4ee5\u4ed6\u7684\u5b57\u6bb5\u4e5f\u975e\u5e38\u7b80\u5355\uff0c\u9664\u4e86\u4e3b\u952e\u548c\u65f6\u95f4\u4ee5\u5916\uff0c\u5c31\u4e24\u4e2a\u5b57\u6bb5\uff1a\u4e00\u4e2a\u53eb\u505a<code>user_id<\/code>\uff0c\u5c31\u662f\u5f53\u524d\u7528\u6237\u7684ID\uff1b\u53e6\u4e00\u4e2a\u53eb\u505a<code>followed_id<\/code>\uff0c\u5c31\u662f\u88ab\u5173\u6ce8\u7684\u90a3\u4e2a\u7528\u6237\u7684ID\u3002\u6240\u4ee5\u8fd9\u6837\u4e24\u4e2a\u5173\u7cfb\u662f\u4e0d\u662f\u5c31\u8bb0\u5f55\u4e0b\u6765\u4e86\u3002\u4e0d\u8fc7\u7ec6\u5fc3\u7684\u540c\u5b66\u53ef\u80fd\u53d1\u73b0\u4e86\uff0c\u5c31\u662f\u6211\u4eec\u8fd9\u5f20\u8868\u7684\u4e3b\u952e\u5e76\u6ca1\u6709\u8bbe\u7f6e\u81ea\u589e\u957f\uff0c\u90a3\u8fd9\u6837\u6211\u4eec\u5c06\u6765\u5982\u679c\u53bb\u5b9e\u73b0\u529f\u80fd\u7684\u65f6\u5019\uff0c\u662f\u4e0d\u662f\u5f97\u624b\u52a8\u53bb\u6307\u5b9aID\u554a\uff0c\u592a\u9ebb\u70e6\u4e86\u3002\u6240\u4ee5\u5728\u8fd9\u91cc\u6211\u4eec\u5c31\u628a\u8fd9\u4e2a\u7ec4\u4ef6\u6539\u6210\u81ea\u589e\u957f\u3002<\/p>\n\n\n\n<p>\u8fd9\u6837\uff0c\u6bcf\u6b21\u63d2\u5165\u65b0\u8bb0\u5f55\u65f6\uff0c\u6570\u636e\u5e93\u4f1a\u81ea\u52a8\u4e3a\u6211\u4eec\u751f\u6210\u4e00\u4e2a\u65b0\u7684ID\uff0c\u6211\u4eec\u5c31\u4e0d\u9700\u8981\u624b\u52a8\u6307\u5b9a\u4e86\uff0c\u7b80\u5316\u4e86\u6211\u4eec\u7684\u64cd\u4f5c\u3002\u63a5\u4e0b\u6765\uff0c\u6211\u4eec\u5c31\u53ef\u4ee5\u6839\u636e\u8fd9\u4e2a\u8bbe\u8ba1\u6765\u5b9e\u73b0\u5173\u6ce8\u548c\u53d6\u5173\u7684\u529f\u80fd\u4e86\u3002\u5728\u5b9e\u73b0\u8fd9\u4e24\u4e2a\u529f\u80fd\u65f6\uff0c\u6211\u4eec\u9700\u8981\u505a\u7684\u662f\uff0c\u5f53\u7528\u6237\u53d1\u9001\u5173\u6ce8\u8bf7\u6c42\u65f6\uff0c\u6211\u4eec\u5728<code>tp_follow<\/code>\u8868\u4e2d\u63d2\u5165\u4e00\u6761\u65b0\u7684\u8bb0\u5f55\uff0c\u8bb0\u5f55\u5f53\u524d\u7528\u6237ID\u548c\u88ab\u5173\u6ce8\u7528\u6237ID\u3002\u5f53\u7528\u6237\u53d1\u9001\u53d6\u5173\u8bf7\u6c42\u65f6\uff0c\u6211\u4eec\u5219\u9700\u8981\u4ece<code>tp_follow<\/code>\u8868\u4e2d\u5220\u9664\u5bf9\u5e94\u7684\u8bb0\u5f55\u3002<\/p>\n\n\n\n<p>\u540c\u65f6\uff0c\u6211\u4eec\u8fd8\u9700\u8981\u5b9e\u73b0\u4e00\u4e2a\u67e5\u8be2\u529f\u80fd\uff0c\u6839\u636e\u5f53\u524d\u7528\u6237ID\u548c\u88ab\u67e5\u8be2\u7528\u6237ID\u6765\u786e\u5b9a\u662f\u5426\u5173\u6ce8\u3002\u8fd9\u4e2a\u67e5\u8be2\u53ef\u4ee5\u901a\u8fc7\u4e00\u4e2a\u7b80\u5355\u7684SQL\u8bed\u53e5\u6765\u5b9e\u73b0\uff0c\u6bd4\u5982<code>SELECT * FROM tp_follow WHERE user_id = ? AND followed_id = ?<\/code>\u3002\u8fd9\u91cc\u7684\u95ee\u53f7<code>?<\/code>\u662f\u53c2\u6570\u5360\u4f4d\u7b26\uff0c\u6211\u4eec\u5c06\u5728\u4ee3\u7801\u4e2d\u7528\u5177\u4f53\u7684\u7528\u6237ID\u6765\u66ff\u6362\u5b83\u4eec\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u5b9e\u73b0\u5173\u6ce8\u548c\u53d6\u5173\u529f\u80fd<\/h3>\n\n\n\n<p>\u9700\u6c42\uff1a\u57fa\u4e8e\u8be5\u8868\u6570\u636e\u7ed3\u6784\uff0c\u5b9e\u73b0\u4e24\u4e2a\u63a5\u53e3\uff1a<br>\u2460\u5173\u6ce8\u548c\u53d6\u5173\u63a5\u53e3<br>\u2461\u5224\u65ad\u662f\u5426\u5173\u6ce8\u7684\u63a5\u53e3<br>\u5173\u6ce8\u662fUser\u4e4b\u95f4\u7684\u5173\u7cfb\uff0c\u662f\u535a\u4e3b\u4e0e\u7c89\u4e1d\u7684\u5173\u7cfb\uff0c\u6570\u636e\u5e93\u4e2d\u6709\u4e00\u5f20tb_follow\u8868\u6765\u6807\u793a\uff1a<\/p>\n\n\n\n<p>\u53f3\u952e\u9009\u62e9\u201d\u8bbe\u8ba1\u8868\u201c\uff0c\u5c06id\u8bbe\u7f6e\u4e3a\u81ea\u589e\u957f<\/p>\n\n\n\n<p><img loading=\"lazy\" decoding=\"async\" height=\"227\" width=\"258\" src=\"https:\/\/i-blog.csdnimg.cn\/direct\/7d8469118e7440dca997f1413251d553.png\" alt=\"\"><\/p>\n\n\n\n<p>&nbsp;\u4e3acontrol\uff0cservice\uff0cimpl\u4f9d\u6b21\u5b8c\u5584<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>@RestController\n@RequestMapping(\"\/follow\")\npublic class FollowController {\n\n    @Resource\n    private IFollowService followService;\n\n    @PutMapping(\"\/{id}\/{isFollow}\")\n    public Result follow(@PathVariable(\"id\") Long followUserId, @PathVariable(\"isFollow\") Boolean isFollow) {\n        return followService.follow(followUserId, isFollow);\n    }\n\n    @GetMapping(\"\/or\/not\/{id}\")\n    public Result isFollow(@PathVariable(\"id\") Long followUserId) {\n        return followService.isFollow(followUserId);\n    }\n\n}<\/code><\/pre>\n\n\n\n<pre class=\"wp-block-code\"><code>public interface IFollowService extends IService&lt;Follow&gt; {\n    Result follow (Long followUserId, Boolean isFollow);\n    Result isFollow(Long followUserId);\n}\n<\/code><\/pre>\n\n\n\n<pre class=\"wp-block-code\"><code>    @Override\n    public Result follow(Long followUserId, Boolean isFollow) {\n        \/\/1.\u83b7\u53d6\u767b\u5f55\u7528\u6237\n        Long userId = UserHolder.getUser().getId();\n       \/\/1.\u5224\u65ad\u5230\u5e95\u662f\u5173\u6ce8\u8fd8\u662f\u53d6\u5173\n        if(isFollow) {\n            \/\/2.\u5173\u6ce8\uff0c\u65b0\u589e\u6570\u636e\n            Follow follow = new Follow();\n            follow.setUserId(userId);\n            follow.setFollowUserId(followUserId);\n            save(follow);\n        }else {\n            \/\/3.\u53d6\u5173\uff0c\u5220\u9664deletefromtb_followwhereuser_id=\uff1fand follow_user_id=\uff1f\n            remove(new QueryWrapper&lt;Follow&gt;()\n                    .eq(\"user_id\", userId).eq(\"follow_user_id\", followUserId));\n            \/\/\u8fd9\u91cc\u7528lamdaquerymapper\u597d\u4e00\u4e9b,\u7528LambdaQueryWrapper\u7684\u8bb0\u5f97\u628axml\u91cc\u7684\u82de\u7c73\u8c46\u7248\u672c\u6539\u62103.4.3.4\u4ee5\u4e0a \u4e0d\u7136\u6709bug\n            \/\/new LambdaQueryWrapper&lt;Follow&gt;().eq(Follow::getUserId, userId).eq(Follow::getFollowUserId,followUserId).remove()\n        }\n        return Result.ok();\n\n    }\n    @Override\n    public Result isFollow(Long followUserId) {\n        \/\/1.\u83b7\u53d6\u767b\u5f55\u7528\u6237\n        Long userId = UserHolder.getUser().getId();\n        \/\/2.\u67e5\u8be2\u662f\u5426\u5173\u6ce8select count\uff08*\uff09from tb_follow where user_id=\uff1fand follow_user_id=\uff1f\n        Integer count = query().eq(\"user_id\",userId).eq(\"follow_user_id\",followUserId).count();\n        \/\/3.\u5224\u65ad\n        return Result.ok(count &gt; 0);\n    }<\/code><\/pre>\n\n\n\n<p><img loading=\"lazy\" decoding=\"async\" height=\"351\" width=\"232\" src=\"https:\/\/i-blog.csdnimg.cn\/direct\/80de30047e834fc09653b20761bfa894.png\" alt=\"\">\u6210\u529f\u5173\u6ce8<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">&nbsp;\u5171\u540c\u5173\u6ce8<\/h3>\n\n\n\n<p>\u70b9\u51fb\u7528\u6237\u5934\u50cf\u67e5\u8be2\u7528\u6237\u548c\u6307\u5b9a\u7528\u6237\u6240\u6709\u7b14\u8bb0\uff0c\u8d44\u6599\u63d0\u4f9b\u7684\u4e00\u4e2a\u53eb\u4ee3\u7801\u7247\u6bb5.java\u7684\u6587\u4ef6<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>\/\/ UserController \u6839\u636eid\u67e5\u8be2\u7528\u6237\n\n@GetMapping(\"\/{id}\")\npublic Result queryUserById(@PathVariable(\"id\") Long userId){\n\t\/\/ \u67e5\u8be2\u8be6\u60c5\n\tUser user = userService.getById(userId);\n\tif (user == null) {\n\t\treturn Result.ok();\n\t}\n\tUserDTO userDTO = BeanUtil.copyProperties(user, UserDTO.class);\n\t\/\/ \u8fd4\u56de\n\treturn Result.ok(userDTO);\n}\n\n\/\/ BlogController\n@GetMapping(\"\/of\/user\")\npublic Result queryBlogByUserId(\n\t\t@RequestParam(value = \"current\", defaultValue = \"1\") Integer current,\n\t\t@RequestParam(\"id\") Long id) {\n\t\/\/ \u6839\u636e\u7528\u6237\u67e5\u8be2\n\tPage&lt;Blog&gt; page = blogService.query()\n\t\t\t.eq(\"user_id\", id).page(new Page&lt;&gt;(current, SystemConstants.MAX_PAGE_SIZE));\n\t\/\/ \u83b7\u53d6\u5f53\u524d\u9875\u6570\u636e\n\tList&lt;Blog&gt; records = page.getRecords();\n\treturn Result.ok(records);\n}<\/code><\/pre>\n\n\n\n<p>\u5206\u522b\u4e3aUserController\u548cBlogController\u6dfb\u52a0\u4e0a\u9762\u7684\u4ee3\u7801<\/p>\n\n\n\n<p>&nbsp;\u90a3\u8fd9\u4e2a\u8bf7\u6c42\u5b83\u7684\u8def\u5f84\u4e0a\u53ebfollowcommon\uff0c\u4e5f\u5c31\u662f\u5171\u540c\u5173\u6ce8\u7684\u610f\u601d\uff0c\u90a3\u540e\u9762\u8ddf\u7740\u8fd9\u4e2aid\u5c31\u662f\u554a\u6307\u5b9a\u7684\u8fd9\u4e2a\u7528\u6237\u7684id\uff0c\u5c31\u662f\u6bd4\u5982\u8bf4\u6211\u8981\u67e5\u7684\u662f\u6bd4\u59822\u53f7\u7528\u6237\u5173\u6ce8\u8c01\uff0c\u7136\u540e\u8fd8\u6709\u5f53\u524d\u767b\u5f55\u7528\u6237\u5173\u6ce8\u4e86\u8c01\u3002<\/p>\n\n\n\n<p>\u9700\u6c42\uff1a\u5229\u7528Redis\u4e2d\u6070\u5f53\u7684\u6570\u636e\u7ed3\u6784\uff0c\u5b9e\u73b0\u5171\u540c\u5173\u6ce8\u529f\u80fd\u3002\u5728\u535a\u4e3b\u4e2a\u4eba\u9875\u9762\u5c55\u793a\u51fa\u5f53\u524d\u7528\u6237\u4e0e\u535a\u4e3b\u7684\u5171\u540c\u597d\u53cb\u3002redis\u7684set\u53ef\u4ee5\u5b9e\u73b0\u4ea4\u96c6\u529f\u80fd\u3002<strong>\u6211\u9996\u5148\u662f\u4e0d\u662f\u5e94\u8be5\u628a\u4e00\u4e2a\u7528\u6237\uff0c\u4ed6\u7684\u5173\u6ce8\u7684\u5217\u8868\u4fdd\u5b58\u7684redis\uff0c\u6bd4\u5982\u8bf4\u6211\u4eec\u5f53\u524d\u767b\u5f55\u7528\u6237\u7684\u5173\u6ce8\u4e86\u8c01\uff0c\u4fdd\u5b58\u5230ridis\u7684 \u96c6\u5408\uff0c\u76ee\u6807\u7528\u6237\u540c\u7406\u3002\u90a3\u8fd9\u6837\u6765\u6211\u4eec\u53d1\u8d77\u8fd9\u4e2a\u8bf7\u6c42\u67e5\u7684\u65f6\u5019\uff0c\u5c31\u53ef\u4ee5\u76f4\u63a5\u6c42\u4e24\u4e2aset\u96c6\u5408\u7684\u4ea4\u96c6<\/strong><\/p>\n\n\n\n<p>&nbsp;\u8bf4\u5b9e\u5728\u7684\uff0c\u8fd9\u4e2a\u91cf\u53c8\u4e0d\u5927\uff0c\u76f4\u63a5\u4e0a\u6570\u636e\u5e93\u4e86\uff0c\u6ca1\u5fc5\u8981redis\uff0c\u867d\u7136\u80fd\u6301\u4e45\u5316\uff0c\u4f46\u662f\u4e13\u4e1a\u7684\u8fd8\u5f97\u4e13\u4e1a\u6765\u5e72\u554a<\/p>\n\n\n\n<p>&nbsp;\u6539\u9020followserviceimpl<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>    @Resource\n    private StringRedisTemplate stringRedisTemplate;\n\n    @Override\n    public Result follow(Long followUserId, Boolean isFollow) {\n        \/\/1.\u83b7\u53d6\u767b\u5f55\u7528\u6237\n        Long userId = UserHolder.getUser().getId();\n        \/\/String key =\"follow:\"+followUserId+\":\"+isFollow;\n        String key = \"follow:\" + userId;\n        \/\/1.\u5224\u65ad\u5230\u5e95\u662f\u5173\u6ce8\u8fd8\u662f\u53d6\u5173\n        if (isFollow) {\n            \/\/2.\u5173\u6ce8\uff0c\u65b0\u589e\u6570\u636e\n            Follow follow = new Follow();\n            follow.setUserId(userId);\n            follow.setFollowUserId(followUserId);\n            boolean isSuccess = save(follow);\n            if (isSuccess) {\n                \/\/\u628a\u5173\u6ce8\u7528\u6237\u7684id\uff0c\u653e\u5165redis\u7684set\u96c6\u5408sadd userId followerUserId\n\n                stringRedisTemplate.opsForSet().add(key, followUserId.toString());\n            }\n        } else {\n            \/\/3.\u53d6\u5173\uff0c\u5220\u9664delete from tb_follow where user_id=\uff1fand follow_user_id=\uff1f\n            boolean isSuccess = remove(new QueryWrapper&lt;Follow&gt;()\n                    .eq(\"user_id\", userId).eq(\"follow_user_id\", followUserId));\n            \/\/\u8fd9\u91cc\u7528lamdaquerymapper\u597d\u4e00\u4e9b,\u7528LambdaQueryWrapper\u7684\u8bb0\u5f97\u628axml\u91cc\u7684\u82de\u7c73\u8c46\u7248\u672c\u6539\u62103.4.3.4\u4ee5\u4e0a \u4e0d\u7136\u6709bug\n            \/\/new LambdaQueryWrapper&lt;Follow&gt;().eq(Follow::getUserId, userId).eq(Follow::getFollowUserId,followUserId).remove()\n            if (isSuccess) {\n                \/\/\u628a\u5173\u6ce8\u7528\u6237\u7684id\u4eceRedis\u96c6\u5408\u4e2d\u79fb\u9664\n                stringRedisTemplate.opsForSet().remove(key, followUserId.toString());\n\n            }\n        }\n        return Result.ok();\n\n    }<\/code><\/pre>\n\n\n\n<p><s>\u6211\u89c9\u5f97\u5e94\u8be5\u5728\u7528\u6237\u767b\u5f55\u65f6\u4e0b\u624d\u628a\u7528\u6237\u4fe1\u606f\u548c\u5173\u6ce8\u7684\u4eba\u4e00\u8d77\u67e5\u51fa\u6765\u653e\u5230redis\uff0c\u800c\u70b9\u5f00\u522b\u4eba\u4e3b\u9875\u7684\u65f6\u5019\u518d\u53bb\u67e5\u8fd9\u4e2a\u4eba\u7684\u4fe1\u606f\u548c\u5173\u6ce8\u653e\u5728redis\u4e2d\uff0c\u70b9\u5171\u540c\u5173\u6ce8\u5c31\u76f4\u63a5redis\u5224\u65ad\u3002\u8bbe\u8fc7\u671f\u65f6\u95f4\u7528\u6237\u6d3b\u8dc3\u5c31\u5237\u65b0<\/s><img loading=\"lazy\" decoding=\"async\" height=\"207\" width=\"664\" src=\"https:\/\/i-blog.csdnimg.cn\/direct\/dcab265a197844e4a49e3af524328ccf.png\" alt=\"\"><\/p>\n\n\n\n<p>&nbsp;\u53e6\u627e\u4e00\u4e2a\u53f7\u5173\u6ce8\u5c0f\u9c7c\u540c\u5b66\u548c\u53ef\u53ef\u4eca\u5929\u4e0d\u5403\u8089\uff0c<\/p>\n\n\n\n<p>\u8fd9\u4e2a\u63a5\u53e3\u5462\u5b83\u7684\u8bf7\u6c42\u65b9\u5f0f\u662fget<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>    Result followCommons(Long id);<\/code><\/pre>\n\n\n\n<pre class=\"wp-block-code\"><code>    @GetMapping(\"\/common\/{id}\")\n    public Result followCommons(@PathVariable(\"id\") Long id){\n        return followService.followCommons(id);\n    }<\/code><\/pre>\n\n\n\n<pre class=\"wp-block-code\"><code>    @Override\n    public Result followCommons(Long id) {\n        \/\/1.\u83b7\u53d6\u5f53\u524d\u7528\u6237\n        Long userId = UserHolder.getUser().getId();\n        String key = \"follows:\" + userId;\n        \/\/2.\u6c42\u4ea4\u96c6\n        String key2 = \"follows:\" + id;\n        Set&lt;String&gt; intersect = stringRedisTemplate.opsForSet().intersect(key, key2);\n        if (intersect == null || intersect.isEmpty()) {\n        \/\/\u65e0\u4ea4\u96c6\n            return Result.ok(Collections.emptyList());\n        }\n        \/\/3.\u89e3\u6790id\u96c6\u5408\n        List&lt;Long&gt; ids = intersect.stream().map(Long::valueOf).collect(Collectors.toList());\n        \/\/4.\u67e5\u8be2\u7528\u6237\n        List&lt;UserDTO&gt; users = userService.listByIds(ids)\n                .stream()\n                .map(user -&gt; BeanUtil.copyProperties(user, UserDTO.class))\n                .collect(Collectors.toList());\n        return Result.ok(users);\n    }<\/code><\/pre>\n\n\n\n<h3 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class=\"wp-block-heading\">\u2460\u62c9\u6a21\u5f0f<\/h4>\n\n\n\n<p><img loading=\"lazy\" decoding=\"async\" height=\"460\" width=\"992\" src=\"https:\/\/i-blog.csdnimg.cn\/direct\/8bcd4b2ad9644edd8428aa177d484a87.png\" 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alt=\"\"><\/p>\n\n\n\n<p>\u90a3\u6709\u6ca1\u6709\u66f4\u52a0\u5b8c\u7f8e\u7684\u65b9\u5f0f\uff0c\u5509\u5c31\u6709\u4e86\u7b2c\u4e09\u79cd\u63a8\u62c9\u7ed3\u5408\uff0c\u800c\u8fd9\u79cd\u6a21\u5f0f\u4e5f\u53eb\u8bfb\u5199\u6df7\u5408\u6a21\u5f0f\uff0c\u5b83\u517c\u5177\u4e86\u4e24\u79cd\u6a21\u5f0f\u7684\u4e00\u4e9b\u4f18\u70b9\u3002\u6bd4\u5982\u8bf4\u73b0\u5728\u6709\u4e00\u4e2a\u5927V\u548c\u4e00\u4e2a\u666e\u901a\u4eba\uff0c\u5f20\u4e09\u662f\u5427\uff0c\u90a3\u63a5\u4e0b\u6765\u5462\u8fd8\u6709\u51e0\u4e2a\u7528\u6237\u554a\uff0c\u90a3\u7528\u6237\u80af\u5b9a\u8fd8\u4f1a\u6709\u81ea\u5df1\u7684\u6536\u4ef6\u7bb1\u5417\uff0c\u73b0\u5728\u5462\u5047\u5982\u8bf4\u7b2c\u4e00\u4e2a\u7528\u6237\u554a\uff0c\u4ed6\u5173\u6ce8\u4e86\u5927V\uff0c\u7b2c\u4e8c\u4e2a\u7528\u6237\u5462\u540c\u65f6\u5173\u6ce8\u4e86\u8fd9\u4fe9\u4eba\uff0c\u7b2c\u4e09\u4e2a\u4e5f\u662f\u540c\u65f6\u5173\u6ce8\u8fd9\u4fe9\u4eba\uff0c\u7136\u540e\u5462\u5982\u679c\u73b0\u5728\u8fd9\u4e2a\u666e\u901a\u4eba\u5f20\u4e09\uff0c\u4ed6\u8981\u53bb\u53d1\u6d88\u606f\uff0c\u56e0\u4e3a\u4ed6\u662f\u4e2a\u666e\u901a\u4eba\uff0c\u4ed6\u7684\u7c89\u4e1d\u975e\u5e38\u5c11\uff0c\u6240\u4ee5\u6211\u4eec\u53ef\u4ee5\u7528\u4ec0\u4e48\u6a21\u5f0f\u54ce\uff0c\u662f\u4e0d\u662f\u8bb2\u4e86\u7b2c\u4e8c\u79cd\u63a8\u6a21\u5f0f\u5440\uff0c\u56e0\u4e3a\u4ed6\u7c89\u4e1d\u5c11\uff0c\u6240\u4ee5\u8bf4\u5462\u4f60\u5199\u51e0\u4efd\u4e5f\u6ca1\u4ec0\u4e48\u95ee\u9898\u561b\u3002<\/p>\n\n\n\n<p>\u90a3\u610f\u601d\u5f53\u4ed6\u53d1\u73b0\u7684\u65f6\u5019\uff0c\u4ed6\u5c31\u6ca1\u6709\u53d1\u4ef6\u7bb1\u4e86\uff0c\u800c\u662f\u76f4\u63a5\u63a8\u9001\u7ed9\u6bcf\u4e00\u4e2a\u554a\u7c89\u4e1d\uff0c\u7136\u540e\u5199\u5230\u4ed6\u7684\u6570\u636e\u6548\u7387\u5c31\u5b8c\u4e86\uff0c\u91c7\u7528\u4e86\u63a8\u6a21\u5f0f\u3002\u800c\u5927V\u5219\u4e0d\u4e00\u6837\uff0c\u5927V\u7684\u7c89\u4e1d\u53ef\u80fd\u4f1a\u6bd4\u8f83\u591a\u5440\uff0c\u4e0d\u8fc7\u5462\u7c89\u4e1d\u867d\u7136\u591a\u554a\uff0c\u786e\u5b9e\u6709\u5dee\u5f02\u7684\uff0c\u5927\u5bb6\u4f1a\u6ce8\u610f\u5230\u6211\u8fd9\u4e2a\u7c89\u4e1d\u554a\uff0c\u6709\u4e00\u4e2a\u7c89\u4e1d\u6807\u7ea2\u4e86\u554a\uff0c\u53eb\u6d3b\u8dc3\u7c89\u4e1d\u3002\u4f60\u5e94\u8be5\u77e5\u9053\u554a\uff0c\u867d\u7136\u4f55\u7085\u5728\u5fae\u535a\u4e0a\u6709\u51e0\u4ebf\u7c89\u4e1d\u662f\u5427\uff0c\u4f46\u662f\u4f60\u8be5\u77e5\u9053\u5927\u90e8\u5206\u5e94\u8be5\u90fd\u662f\u50f5\u5c38\u7c89\uff0c\u5176\u5b9e\u4efb\u4f55\u4e00\u4e2a\u4eba\u90fd\u662f\u8fd9\u6837\uff0c\u8fd8\u6709\u5f88\u591a\u7c89\u4e1d\u5462\uff0c\u5e73\u5e38\u90fd\u4e0d\u600e\u4e48\u4e0a\u7ebf\u4e86\uff0c\u5076\u5c14\u6765\u770b\u4e00\u770b\uff0c\u4f46\u662f\u6709\u4e00\u4e9b\u4eba\u7c89\u4e1d\u5934\u662f\u5427\uff0c\u90a3\u996d\u5708\u91cc\u9762\u90a3\u4e9b\u554a\u975e\u5e38\u53d8\u6001\u7684\uff0c\u4ed6\u5c31\u4f1a\u6709\u4e00\u4e2a\u6d3b\u8dc3\u7c89\u4e1d\uff0c\u5929\u5929\u90fd\u5728\u7ebf\u4e0a\u554a\uff0c\u4eca\u5929\u770b\u4e00\u4e0b\uff0c\u660e\u5929\u770b\u4e00\u4e0b\u554a\uff0c\u6216\u8005\u4e00\u5929\u770b\u597d\u51e0\u6b21\u3002<\/p>\n\n\n\n<p>\u6240\u4ee5\u5462\u6211\u4eec\u5728\u540e\u53f0\u5c31\u53ef\u4ee5\u628a\u7c89\u4e1d\u554a\uff0c\u5206\u6210\u4e24\u7c7b\u53bb\u505a\u5904\u7406\uff0c\u65e2\u7136\u6d3b\u8dc3\u7c89\u4e1d\u6570\u91cf\u4e0d\u591a\uff0c\u6211\u4eec\u5c31\u53ef\u4ee5\u5229\u7528\u63a8\u6a21\u5f0f\uff0c\u800c\u666e\u901a\u7c89\u4e1d\u5462\u6570\u91cf\u8d85\u7ea7\u591a\uff0c\u6211\u4eec\u5462\u5c31\u91c7\u7528\u62c9\u6a21\u5f0f\u3002\u90a3\u8fd9\u6837\u5462\u5c31\u63a8\u62c9\u7ed3\u5408\uff0c\u65e2\u8282\u7701\u4e86\u5185\u5b58\u554a\uff0c\u53c8\u7167\u987e\u4e86\u4e00\u4e9b\u6d3b\u8dc3\u7528\u6237\u7684\u611f\u53d7\u554a\uff0c\u56e0\u6b64\u5462\u5927V\u9700\u8981\u6709\u4e00\u4e2a\u53d1\u4ef6\u7bb1\uff0c\u5f53\u5927V\u4e00\u53d1\u6d88\u606f\u7684\u65f6\u5019\uff0c\u90a3\u4e9b\u6d3b\u8dc3\u7c89\u4e1d\u56e0\u4e3a\u7ecf\u5e38\u770b\u6211\u4eec\u5c06\u91c7\u7528\u63a8\u6a21\u5f0f\uff0c\u76f4\u63a5\u63a8\u5230\u4ed6\u7684\u89c6\u9891\u4e0b\uff0c\u800c\u81f3\u4e8e\u666e\u901a\u4eba\u4e86\uff0c\u5e73\u5e38\u90fd\u4e0d\u600e\u4e48\u4e0a\u7ebf\uff0c\u6211\u53d1\u7ed9\u4f60\u4e0d\u4e5f\u6d6a\u8d39\u5417\uff0c\u6240\u4ee5\u8bf4\u5462\u53d1\u5230\u53d1\u4ef6\u7bb1\u91cc\uff0c\u90a3\u56e0\u6b64\u5927V\u7684\u6d88\u606f\u5c31\u4f1a\u53d1\u4ef6\u7bb1\u91cc\u4e00\u4efd\uff0c\u7136\u540e\u5462\u6240\u6709\u7684\u6d3b\u8dc3\u7c89\u4e1d\u4e00\u4efd\u653e\u5230\u6570\u636e\u7bb1\u91cc\uff0c\u8fd9\u4e2a\u65f6\u5019\u6d3b\u8dc3\u7c89\u4e1d\u4ed6\u53d7\u6559\u6743\u7684\u6d88\u606f\u80af\u5b9a\u8981\u505a\u4e2a\u6392\u5e8f\uff0c\u5f53\u4ed6\u6765\u8bfb\u53d6\u7684\u65f6\u5019\uff0c\u662f\u4e0d\u662f\u76f4\u63a5\u8bfb\u5230\u4e86\u554a\uff0c\u4e0d\u9700\u8981\u4e34\u65f6\u62c9\u53bb\uff0c\u4e5f\u4e0d\u9700\u8981\u4e34\u65f6\u6392\u5e8f\u3002<\/p>\n\n\n\n<p>\u6240\u4ee5\u5462\u6d3b\u8dc3\u7c89\u4e1d\u5b83\u8bfb\u53d6\u7684\u65f6\u5019\uff0c\u8fd9\u4e2a\u5ef6\u65f6\u5c31\u975e\u5e38\u7684\u4f4e\uff0c\u8bf6\u4ed6\u770b\u7684\u9891\u7e41\u4e86\uff0c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class=\"wp-block-table\"><table class=\"has-fixed-layout\"><tbody><tr><td><\/td><td>\u62c9\u6a21\u5f0f<\/td><td>\u63a8\u6a21\u5f0f<\/td><td>\u63a8\u62c9\u7ed3\u5408<\/td><\/tr><tr><td>\u5199\u6bd4\u4f8b<\/td><td>\u4f4e<\/td><td>\u9ad8<\/td><td>\u4e2d<\/td><\/tr><tr><td>\u8bfb\u6bd4\u4f8b<\/td><td>\u9ad8<\/td><td>\u4f4e<\/td><td>\u4e2d<\/td><\/tr><tr><td>\u7528\u6237\u8bfb\u53d6\u5ef6\u8fdf<\/td><td>\u9ad8<\/td><td>\u4f4e<\/td><td>\u4f4e<\/td><\/tr><tr><td>\u5b9e\u73b0\u96be\u5ea6<\/td><td>\u590d\u6742<\/td><td>\u7b80\u5355<\/td><td>\u5f88\u590d\u6742<\/td><\/tr><tr><td>\u4f7f\u7528\u573a\u666f<\/td><td>\u5f88\u5c11\u4f7f\u7528<\/td><td>\u7528\u6237\u91cf\u5c11\u3001\u6ca1\u6709\u5927V<\/td><td>\u8fc7\u5343\u4e07\u7684\u7528\u6237\u91cf\uff0c\u6709\u5927V<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h4 class=\"wp-block-heading\">\u57fa\u4e8e\u63a8\u6a21\u5f0f\u5b9e\u73b0\u5173\u6ce8\u63a8\u9001\u529f\u80fd<\/h4>\n\n\n\n<p>\u9700\u6c42\uff1a<br>\u2460\u4fee\u6539\u65b0\u589e\u63a2\u5e97\u7b14\u8bb0\u7684\u4e1a\u52a1\uff0c\u5728\u4fdd\u5b58blog\u5230\u6570\u636e\u5e93\u7684\u540c\u65f6\uff0c\u63a8\u9001\u5230\u7c89\u4e1d\u7684\u6536\u4ef6\u7bb1<br>\u2461\u6536\u4ef6\u7bb1\u6ee1\u8db3\u53ef\u4ee5\u6839\u636e\u65f6\u95f4\u6233\u6392\u5e8f\uff0c\u5fc5\u987b\u7528Redis\u7684\u6570\u636e\u7ed3\u6784\u5b9e\u73b0<br>\u2462\u67e5\u8be2\u6536\u4ef6\u7bb1\u6570\u636e\u65f6\uff0c\u53ef\u4ee5\u5b9e\u73b0\u5206\u9875\u67e5\u8be2<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>@PostMapping\npublic Result saveBlog(@RequestBody Blog blog\uff09{\n    \/\/\u83b7\u53d6\u767b\u5f55\u7528\u6237\n    UserDTo user = UserHolder.getUser()\uff1b\n    blog.setUserId(user.getId());\n    \/\/\u4fdd\u5b58\u63a2\u5e97\u7b14\u8bb0\n    return Result.ok();blogservice.save(blog);\n}<\/code><\/pre>\n\n\n\n<p><br><img loading=\"lazy\" decoding=\"async\" height=\"324\" width=\"682\" src=\"https:\/\/i-blog.csdnimg.cn\/direct\/aeef69a9a9034375a82f88bf43e3b098.png\" alt=\"\"><img loading=\"lazy\" decoding=\"async\" height=\"15\" width=\"15\" src=\"blob:https:\/\/eve2333.top\/675440d1-69f2-449b-84ec-5573246d55d5\"><\/p>\n\n\n\n<p>\u5728Feed\u6d41\u4e2d\uff0c\u6570\u636e\u4f1a\u4e0d\u65ad\u53d8\u5316\uff0c\u56e0\u4e3a\u4e0d\u65ad\u6709\u4eba\u53d1\u5e03\u65b0\u7684\u6d88\u606f\uff0c\u8fd9\u4e9b\u6d88\u606f\u4f1a\u6301\u7eed\u8fdb\u5165\u6211\u4eec\u7684\u961f\u5217\u4e2d\uff0c\u5bfc\u81f4\u6392\u540d\u4e0d\u65ad\u53d8\u5316\uff0c\u56e0\u6b64\u6e38\u6807\uff08cursor\uff09\u4e5f\u5728\u53d8\u5316\u3002\u6b64\u65f6\uff0c\u5982\u679c\u4f60\u4ecd\u7136\u91c7\u7528\u4f20\u7edf\u7684\u5206\u9875\u6a21\u5f0f\uff0c\u5c31\u4f1a\u9047\u5230\u95ee\u9898\u3002\u4f20\u7edf\u5206\u9875\u6a21\u5f0f\u662f\u6309\u7167\u6e38\u6807\u8fdb\u884c\u67e5\u8be2\u7684\u3002\u4e3a\u4ec0\u4e48\u8fd9\u6837\u5462\uff1f\u6211\u4eec\u6765\u770b\u4e00\u4e0b\u3002<\/p>\n\n\n\n<p>\u5047\u8bbe\u65f6\u95f4\u8f74\u5230\u8fbe\u4e86t1\u65f6\u523b\uff0c\u6b64\u65f6\u6536\u4ef6\u7bb1\u91cc\u6709\u5341\u6761\u6d88\u606f\uff0c\u8fd9\u4e9b\u6d88\u606f\u6309ID\u6216\u65f6\u95f4\u6233\u4ece\u5927\u5230\u5c0f\u6392\u5217\u3002\u5982\u679c\u6211\u4eec\u6309\u6e38\u6807\u67e5\u8be2\uff0c\u6bd4\u5982\u8981\u67e5\u7b2c\u4e00\u9875\uff0c\u6bcf\u9875\u67e5\u4e94\u6761\uff0c\u6211\u4eec\u4f20\u7684\u53c2\u6570\u53ef\u80fd\u662f0, 3\uff08\u914d\u7f6e\uff0c\u914d\u7f6e-1\uff0c\u4e58\u4ee5\u4e00\u4e2asize\uff0c\u7b97\u51fa\u6765\u662f0\uff0c\u4ece0\u5f00\u59cb\u67e5\u4e94\u6761\uff0c\u6b63\u597d\u662f\u8fd9\u4e00\u90e8\u5206\uff09\u3002\u5f53\u7b2c\u4e00\u9875\u67e5\u5b8c\u540e\uff0c\u65f6\u95f4\u5230\u4e86\u7b2c\u4e8c\u4e2a\u65f6\u523b\uff0c\u6709\u4eba\u63d2\u5165\u4e86\u4e00\u6761\u65b0\u6570\u636e\uff0c\u8fd9\u6761\u65b0\u6570\u636e\u56e0\u4e3a\u662f\u6700\u65b0\u7684\uff0c\u6240\u4ee5\u6392\u540d\u9760\u524d\uff0c\u5b83\u7684\u6e38\u6807\u53d8\u6210\u4e860\uff0c\u539f\u6765\u7b2c\u516d\u6761\u7684\u6e38\u6807\u662f4\uff0c\u73b0\u5728\u53d8\u6210\u4e865\u3002<\/p>\n\n\n\n<p>\u5230\u4e86\u7b2c\u4e09\u4e2a\u65f6\u523b\uff0c\u6211\u4eec\u6765\u8bfb\u53d6\u7b2c\u4e8c\u9875\uff0c\u7ed9\u7684\u53c2\u6570\u81ea\u7136\u5c31\u662f\u914d\u7f6e\u7b49\u4e8e2, 3=5\uff08\u914d\u7f6e\u7b49\u4e8e2, 2-1, \u4e58\u4ee5\u4e00\u4e2asize\uff0c\u7b49\u4e8e\u4e94\uff0c\u6e38\u6807\u4ece\u4e94\u5f00\u59cb\uff09\u3002\u4ece5\u5f00\u59cb\u67e5\uff0c012345\uff0c\u53c8\u4ece6\u5f00\u59cb\uff0c\u8fd9\u5c31\u4f1a\u51fa\u73b0\u91cd\u590d\u8bfb\u53d6\u7684\u60c5\u51b5\u3002\u56e0\u6b64\uff0c\u8fd9\u5c31\u662fFeed\u6d41\u4e0d\u80fd\u91c7\u7528\u4f20\u7edf\u5206\u9875\u7684\u539f\u56e0\uff0c\u56e0\u4e3a\u6570\u636e\u7684\u53d8\u5316\u5bfc\u81f4\u6e38\u6807\u53d8\u5316\uff0c\u5206\u6790\u51fa\u73b0\u6df7\u4e71\u3002<\/p>\n\n\n\n<p>\u90a3\u600e\u4e48\u529e\u5462\uff1f\u6240\u4ee5\u8fd9\u91cc\u6211\u4eec\u53ea\u80fd\u91c7\u7528\u6eda\u52a8\u5206\u9875\u6a21\u5f0f\u3002\u4ec0\u4e48\u53eb\u6eda\u52a8\u5206\u9875\uff1f\u5176\u5b9e\u5c31\u662f\u8bb0\u5f55\u6bcf\u4e00\u6b21\u67e5\u8be2\u7684\u6700\u540e\u4e00\u6761\uff0c\u4e0b\u4e00\u6b21\u4ece\u8fd9\u4e2a\u4f4d\u7f6e\u5f00\u59cb\u67e5\uff0c\u8fd9\u5c31\u53eb\u6eda\u52a8\u5206\u9875\u3002\u56e0\u4e3a\u6211\u4eec\u8fd9\u91cc\u7684\u987a\u5e8f\u662f\u6709\u5e8f\u7684\uff0c\u6240\u4ee5\u5b8c\u5168\u53ef\u4ee5\u6309\u7167\u987a\u5e8f\uff0c\u6bcf\u6b21\u8bb0\u4f4f\u6700\u540e\u4e00\u6761\uff0c\u4e0b\u4e00\u6b21\u4ece\u5b83\u5f80\u540e\u67e5\u5c31\u597d\u4e86\u3002<\/p>\n\n\n\n<p>\u6709\u4eba\u8bf4\uff0c\u4f60\u8fd9\u4e2a\u6bcf\u6b21\u8bb0\u4f4f\u4e0a\u4e00\u6b21\u67e5\u8be2\u7684\u6700\u540e\u4e00\u6761\uff0c\u90a3\u6211\u7b2c\u4e00\u6b21\u67e5\u8be2\u600e\u4e48\u529e\uff1f\u65e2\u7136\u6211\u4eec\u662f\u5012\u5e8f\u4ece\u5927\u5230\u5c0f\uff0c\u90a3\u7b2c\u4e00\u6b21\u7684\u65f6\u5019\uff0c\u5b8c\u5168\u53ef\u4ee5\u628a\u8d77\u59cb\u7684ID\u6307\u5b9a\u6210\u65e0\u7a77\u5927\uff08\u6216\u8005\u65f6\u95f4\u6233\u4e5f\u884c\uff0c\u53cd\u6b63\u76f4\u63a5\u6210\u65e0\u7a77\u5927\uff09\uff0c\u7136\u540e\u67e5\u4e94\u6761\uff0c\u8fd9\u6837\u5c31\u4ece\u6700\u5927\u7684\u5f00\u59cb\uff0c\u67e5\u4e94\u4e2a12345\uff0c\u521a\u597d678 90\uff0c\u5bf9\u4e0d\u5bf9\uff0c\u5c31\u8fd9\u51e0\u4e2a\u3002<\/p>\n\n\n\n<p>\u7136\u540e\u5230\u4e86\u7b2c\u4e8c\u65f6\u523b\uff0c\u6709\u4eba\u63d2\u5165\u4e00\u6761\u65b0\u6570\u636e11\uff0c\u6309\u7167\u521a\u624d\u8bf4\u7684\uff0c11\u4f1a\u8dd1\u5230\u961f\u5217\u6700\u4e0a\u9762\u3002\u597d\uff0c\u8fd9\u4e0a\u9762\u4ee5\u540e\u6e38\u6807\u53d1\u751f\u6539\u53d8\u4e86\uff0c\u6ca1\u5173\u7cfb\uff0c\u56e0\u4e3a\u6211\u4eec\u4e0d\u662f\u6309\u6e38\u6807\u67e5\uff0c\u6211\u4eec\u662f\u6309\u7167ID\uff0c\u90a3\u8fd9\u4e00\u6b21\u6211\u67e5\u8be2\u7684last id\u662f\u8c01\uff0c\u6211\u4e0a\u4e00\u4e2a\u67e5\u7684\u6700\u5c0f\u7684\u90a3\u4e2a\u662f\u4e0d\u662f\u516d\u554a\uff0c\u6240\u4ee5\u4e0b\u4e00\u6b21\u6211\u662f\u4e0d\u662f\u5c31\u62c9\u51fa\u6765\uff0c\u5c31\u7b49\u4e8e\u516d\uff0c\u4ece\u516d\u5f00\u59cb\u5f80\u540e\u67e5\u4e94\u6761\uff0c\u90a3\u4e48\u521a\u597d\u662f54321\uff0c\u6240\u4ee5\u4f1a\u4e0d\u4f1a\u51fa\u73b0\u91cd\u590d\u4e86\uff0c\u4e0d\u4f1a\u5427\u3002\u6240\u4ee5\u8fd9\u5c31\u662f\u6eda\u52a8\u5206\u9875\u7684\u5b9e\u73b0\u539f\u7406\uff0c\u8fd9\u662f\u56e0\u4e3a\u4ed6\u7684\u67e5\u8be2\u4e0d\u4f9d\u8d56\u4e8e\u6e38\u6807\uff0c\u6240\u4ee5\u5c31\u4e0d\u4f1a\u53d7\u5230Feed\u6d41\u4e2d\u6570\u636e\u53d8\u5316\u3001\u6e38\u6807\u53d8\u5316\u5e26\u6765\u7684\u5f71\u54cd\u3002<\/p>\n\n\n\n<p>\u90a3\u4e48\u95ee\u9898\u6765\u4e86\uff0c\u6211\u4eec\u7684\u7c7b\u4f3c\u7ed3\u6784\u652f\u6301\u8fd9\u79cd\u6eda\u52a8\u5206\u9875\u5417\uff1f\u663e\u7136\u4e0d\u884c\uff0c\u56e0\u4e3a\u5728list\u91cc\u6211\u4eec\u67e5\u8be2\u6570\u636e\u554a\uff0c\u53ea\u80fd\u6309\u7167\u6e38\u6807\u67e5\u8be2\uff0c\u6216\u8005\u662f\u9996\u5c3e\uff0c\u9996\u5c3e\u66f4\u4e0d\u884c\u4e86\u3002\u6240\u4ee5list\u4e0d\u652f\u6301\u6eda\u52a8\u5206\u9875\uff0c\u800csorted set\u6211\u4eec\u4e4b\u524d\u8bf4\u4e86\uff0cset\u5b83\u4f1a\u6309\u7167score\u6392\u5e8f\uff0c\u7136\u540e\u6709\u4e00\u4e2a\u6392\u540d\uff0c\u5982\u679c\u4f60\u6309\u7167\u6392\u540d\u67e5\u8be2\u5440\uff0c\u90a3\u8ddf\u6e38\u6807\u67e5\u8be2\u6ca1\u4ec0\u4e48\u533a\u522b\uff0c\u4f46\u662f\u6211\u4eec\u7684set\u5440\uff0c\u8fd8\u652f\u6301\u6309\u7167score\u8303\u56f4\u8fdb\u884c\u67e5\u8be2\uff0c\u6211\u4eec\u7684\u601d\u8003\u503c\u5c31\u662f\u6211\u4eec\u65f6\u95f4\u6233\u561b\uff0c\u6211\u4eec\u628a\u65f6\u95f4\u6233\u6309\u4ece\u5927\u5230\u5c0f\u7684\u987a\u5e8f\u505a\u4e2a\u6392\u5217\uff0c\u6bcf\u4e00\u6b21\u67e5\u8be2\u7684\u65f6\u5019\u554a\uff0c\u6211\u90fd\u8bb0\u4f4f\u6700\u5c0f\u7684\u90a3\u4e2a\u65f6\u95f4\u6233\uff0c\u7136\u540e\u4e0b\u6b21\u67e5\u8be2\u65f6\u6211\u518d\u627e\u6bd4\u8fd9\u4e2a\u65f6\u95f4\u6233\u66f4\u5c0f\u7684\uff0c\u8fd9\u6837\u662f\u4e0d\u662f\u5c31\u5b9e\u73b0\u4e86\u6eda\u52a8\u5206\u9875\u4e86\uff0c\u90a3\u6570\u636e\u4e5f\u5c31\u4e0d\u4f1a\u91cd\u590d\u4e86\u3002<\/p>\n\n\n\n<p>\u56e0\u6b64\u6700\u7ec8\u80dc\u51fa\u7684\u662f\u8c01\u554a\uff0csorted set\u3002\u6240\u4ee5\u5927\u5bb6\u8bb0\u4f4f\u4e86\uff0c\u5982\u679c\u4f60\u7684\u6570\u636e\u4f1a\u6709\u53d8\u5316\u7684\u60c5\u51b5\u4e0b\uff0c\u90a3\u5c3d\u91cf\u4e0d\u8981\u4f7f\u7528list\u8fd9\u79cd\u961f\u5217\u53bb\u505a\u5206\u6790\uff0c\u800c\u662f\u4f7f\u7528sorted set\u3002\u90a3\u540c\u6837\u4f60\u4ee5\u540e\u505a\u6392\u884c\u699c\u7684\u8bdd\uff0c\u4f60\u4e5f\u8981\u6ce8\u610f\u8fd9\u4e00\u70b9\u3002\u90a3\u63a5\u4e0b\u6765\u4e0d\u5e9f\u8bdd\uff0c\u6211\u4eec\u5c31\u53bb\u5b9e\u73b0\u4e00\u4e0b\uff0c\u6211\u4eec\u5148\u6765\u5b9e\u73b0\u4ec0\u4e48\u4e86\uff0c\u6bcf\u5f53\u6709\u4eba\u53d1\u5e03\u7b14\u8bb0\u65f6\uff0c\u628a\u8fd9\u4e2a\u7b14\u8bb0\u4fdd\u5b58\u5230\u6211\u4eec\u7684sorted set\u3002<\/p>\n\n\n\n<p><img loading=\"lazy\" decoding=\"async\" height=\"323\" width=\"678\" src=\"https:\/\/i-blog.csdnimg.cn\/direct\/cae175625c6f4dc2912e302499ce98ef.png\" alt=\"\"><\/p>\n\n\n\n<p>&nbsp;\u6211\u4eec\u4fee\u6539blogcontroller\uff0c\u5220\u6389\uff0c\u5168\u90e8\u6539\u4e3a\u5728impl\u4e2d\u64cd\u4f5c<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">@PostMapping\npublic Result saveBlog(@RequestBody Blog blog) {\n    return blogService.saveBlog(blog);\n}<\/pre>\n\n\n\n<p>\u6570\u636e\u5e93\u4e2dtb_follow\u7684\u6709user_id\u548cfollow_user_id\u3002\u5206\u522b\u662f\u5173\u6ce8\u4eba\u548c\u88ab\u5173\u6ce8\u4eba<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>\/\/\u524d\u9762\u8865\u4e2a    \n    @Resource\n    private IFollowService followService;\n\n\n    @Override\n    public Result saveBlog(Blog blog) {\n        \/\/1.\u83b7\u53d6\u767b\u5f55\u7528\u6237\n        UserDTO user = UserHolder.getUser();\n        blog.setUserId(user.getId());\n        \/\/2.\u4fdd\u5b58\u63a2\u5e97\u7b14\u8bb0\n        boolean isSuccess = save(blog);\n        if (!isSuccess) {\n            return Result.fail(\"\u65b0\u589e\u7b14\u8bb0\u5931\u8d25!\");\n        }\n        \/\/3.\u67e5\u8be2\u7b14\u8bb0\u4f5c\u8005\u7684\u6240\u6709\u7c89\u4e1dselect*from tb_folLow where follow_user_id=\uff1f\n        List&lt;Follow&gt; follows = followService.query().eq(\"follow_user_id\", user.getId()).list();\n        \/\/4.\u63a8\u9001\u7b14\u8bb0id\u7ed9\u6240\u6709\u7c89\u4e1d\n        for (Follow follow : follows) {\n            \/\/4.1.\u83b7\u53d6\u7c89\u4e1did\n            Long userId = follow.getUserId();\n            \/\/4.2.\u63a8\u9001\n            String key = \"feed:\" + userId;\n            stringRedisTemplate.opsForZSet().add(key, blog.getId().toString(), System.currentTimeMillis());\n        }\n        \/\/4.\u8fd4\u56deid\n        return Result.ok(blog.getId());\n    }<\/code><\/pre>\n\n\n\n<p>\u6211\u4eec\u7528\u53ef\u7231\u591a\u7684\u53f7\u53d1\u4e00\u5957\u6d88\u606f\uff0c\u53ef\u4ee5\u5728\u6570\u636e\u5e93\u4e2d\u67e5\u5230<img loading=\"lazy\" decoding=\"async\" height=\"368\" width=\"1330\" src=\"https:\/\/i-blog.csdnimg.cn\/direct\/1140536fa0ac467fbab26d7243d1d388.png\" alt=\"\"><\/p>\n\n\n\n<p>\u53ef\u4ee5\u770b\u5230redis\u91cc\u9762\u90fd\u6709id\u662f24\u53f7\u7684blog<img loading=\"lazy\" decoding=\"async\" height=\"302\" width=\"1620\" src=\"https:\/\/i-blog.csdnimg.cn\/direct\/4f7a29a0e5134b73985e2319aea8e15b.png\" alt=\"\"><\/p>\n\n\n\n<p>\u5728\u8fd9\u513f\u5462\u6211\u5df2\u7ecf\u63d0\u524d\u51c6\u5907\u597d\u4e86\u4e00\u4e2a\u96c6\u5408\uff0csortset set\u96c6\u5408\u8fd9\u91cc\u8fb9\u6709\u516d\u4e2a\u5143\u7d20<br>\u7136\u540e\u4ed6\u4eec\u5bf9\u5e94\u7684\u6263\u503c\u554a\u5206\u522b\u662f1~6\uff0c\u800c\u5b83\u4eec\u7684\u540d\u79f0\u5462\u6070\u597d\u4e5f\u662f1~6\uff0c\u8fd9\u6837\u65b9\u4fbf\u6211\u4eec\u5c06\u6765\u53bb\u770b\u8fd9\u4e2a\u89c4\u5f8b\uff0c\u7136\u540e\u8fd9\u4e2ascore\u503c\u5462\u4f60\u5c31\u628a\u5b83\u5f53\u6210\u662f\u65f6\u95f4\u6233\uff0c\u65f6\u95f4\u6233\u80af\u5b9a\u4e5f\u662f\u6709\u5927\u6709\u5c0f\uff0c\u6211\u4eec\u5c06\u6765\u8981\u5bf9\u65f6\u95f4\u6233\u505a\u4e00\u4e2a\u6392\u5e8f\uff0c\u800c\u4e14\u662f\u964d\u5e8f\uff0c\u8fd9\u6837\u6765\u65f6\u95f4\u8d8a\u5927\u7684\u4ee3\u8868\u8d8a\u65b0\u6570\u636e\uff0c\u90a3\u5b83\u6392\u540d\u4e86\u81ea\u7136\u4e5f\u5c31\u8d8a\u9760\u524d\uff0c\u7136\u540e\u5462\u6211\u4eec\u518d\u53bb\u505a\u5206\u9875\u554a\uff0c\u6bd4\u65b9\u8bf4\u6211\u4eec\u6bcf\u9875\u67e5\u4e09\u6761\u554a\uff0c\u90a3\u6211\u67e5\u7b2c\u4e00\u9875\u7684\u65f6\u5019\uff0c\u90a3\u5176\u5b9e\u5c31\u662f\u67e5654\u554a\uff0c\u7b2c\u4e8c\u9875\u662f321\u554a\uff0c\u8fd9\u662f\u6211\u4eec\u671f\u671b\u76ee\u6807<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>127.0.0.1:6379&gt; ZREVRANGE z1 0 2 WITHSCORES\n1) \"m6\"\n2) \"6\"\n3) \"m5\"\n4) \"5\"\n5) \"m4\"\n6) \"4\"\n127.0.0.1:6379&gt; \n#\u6b64\u65f6\u63d2\u5165\u4e00\u4e2a\u65b0\u7684\u6570\u636e\uff0c\u6a21\u62df\u6570\u636e\u6df7\u4e71\u7684\u60c5\u51b5\n127.0.0.1:6379&gt; ZADD z1 7 m7\n(integer) 1\n127.0.0.1:6379&gt; ZREVRANGE z1 3 5 WITHSCORES\n1) \"m4\"\n2) \"4\"\n3) \"m3\"\n4) \"3\"\n5) \"m2\"\n6) \"2\"\n<\/code><\/pre>\n\n\n\n<p>\u5728Feed\u6d41\u4e2d\uff0c\u6570\u636e\u4f1a\u4e0d\u65ad\u53d8\u5316\uff0c\u56e0\u4e3a\u4e0d\u65ad\u6709\u4eba\u53d1\u5e03\u65b0\u7684\u6d88\u606f\uff0c\u8fd9\u4e9b\u6d88\u606f\u4f1a\u6301\u7eed\u8fdb\u5165\u6211\u4eec\u7684\u961f\u5217\u4e2d\uff0c\u5bfc\u81f4\u6392\u540d\u4e0d\u65ad\u53d8\u5316\uff0c\u56e0\u6b64\u6e38\u6807\uff08cursor\uff09\u4e5f\u5728\u53d8\u5316\u3002\u6b64\u65f6\uff0c\u5982\u679c\u4ecd\u7136\u91c7\u7528\u4f20\u7edf\u7684\u5206\u9875\u6a21\u5f0f\uff0c\u5c31\u4f1a\u9047\u5230\u95ee\u9898\u3002\u5206\u9875\u5b9e\u9645\u4e0a\u6709\u4e24\u79cd\uff1a\u6309\u6e38\u6807\u5206\u9875\u548c\u6eda\u52a8\u5206\u9875\uff0c\u4e0d\u540c\u7684\u5206\u9875\u65b9\u5f0f\u6548\u679c\u4e5f\u4e0d\u540c\u3002<\/p>\n\n\n\n<p>\u6309\u6e38\u6807\u5206\u9875\u5728\u6211\u4eec\u4f7f\u7528\u7684Sorted Set\u4e2d\u5c31\u662f\u6309\u6392\u540d\u5206\u9875\uff0c\u4f7f\u7528\u7684\u547d\u4ee4\u53eb\u505a`ZRANGE`\u3002`ZRANGE`\u547d\u4ee4\u9700\u8981\u6307\u5b9akey\uff0c\u7136\u540e\u6307\u5b9a`min`\u548c`max`\uff0c\u8fd9\u662f\u5206\u9875\u7684\u4f9d\u636e\uff0c\u4e5f\u5c31\u662f\u6392\u540d\u7684\u6700\u5c0f\u503c\u548c\u6700\u5927\u503c\u3002\u4f8b\u5982\uff0c\u5982\u679cRedis\u4e2d\u5df2\u7ecf\u6709\u516d\u6761\u6570\u636e\uff0c\u6392\u540d\u662f\u5012\u5e8f\u6392\u5217\u7684\uff0c\u90a3\u4e48\u540d\u6b21\u5206\u522b\u662f0\u30011\u30012\u30013\u30014\u30015\u3002\u5982\u679c\u6211\u4eec\u6307\u5b9a0~2\uff0c\u90a3\u662f\u4e0d\u662f\u521a\u597d\u67e5\u524d\u4e09\u6761\u3002\u5229\u7528\u8fd9\u79cd\u65b9\u5f0f\u5c31\u662f\u6309\u6e38\u6807\u5206\u9875\u3002<\/p>\n\n\n\n<p>\u5982\u679c\u6211\u4eec\u56de\u5230\u547d\u4ee4\u884c\uff0c\u6700\u5c0f\u503c\u6700\u5927\u503c\u5c31\u662f\u5b83\u7684\u6392\u540d\uff0c\u4e5f\u5c31\u662f\u6e38\u6807\uff0c\u7136\u540e\u540e\u8fb9\u4f60\u53ef\u4ee5\u6307\u5b9a\u662f\u5426\u8981\u5e26\u4e0a\u5206\u6570\u3002\u6211\u4eec\u6765\u8bd5\u4e00\u4e0b\uff0c\u5f53\u7136\u8fd9\u662f\u6309\u7167\u5347\u5e8f\u6392\u5217\u7684\uff0c\u4f46\u6211\u4eec\u521a\u624d\u8bf4\u8981\u6309\u964d\u5e8f\u6392\u5217\uff0c\u6309\u964d\u5e8f\u7684\u8bdd\uff0c\u9700\u8981\u628a`ZRANGE`\u524d\u9762\u52a0\u4e0a\u4e00\u4e2a`REV`\uff08\u53cd\u8f6c\u7684\u610f\u601d\uff09\uff0c\u547d\u4ee4\u5c31\u53d8\u6210\u4e86`ZREVRANGE`\u3002\u53c2\u6570\u57fa\u672c\u4e00\u6837\uff0c\u6211\u4eec\u6765\u8bd5\u4e00\u4e0b`ZREVRANGE`\uff0c\u76f4\u63a5key\uff0c\u7136\u540e\u76f4\u63a5\u5f00\u59cb0\uff0c\u7136\u540e\u52302\u7ed3\u675f\uff0c\u8fd9\u4e0d\u5c31\u662f\u6211\u4eec\u521a\u624d\u8ba8\u8bba\u8fc7\u7684\u5dee`D`\uff0c`0~2`\uff0c\u7136\u540e`WITHSCORES`\uff0c\u8fd9\u4e2a\u662f\u6307\u7ed3\u679c\u4e2d\u5e26\u4e0a\u5206\u6570\u3002<\/p>\n\n\n\n<p>\u6b64\u65f6\u5982\u679c\u63d2\u5165\u4e00\u6761\u65b0\u7684\u6570\u636e\uff0c\u6211\u4eec\u6a21\u62df\u4e00\u4e0b\u8fd9\u79cd\u6570\u636e\u6df7\u4e71\u7684\u60c5\u51b5\u3002`ZADD`\u63d2\u5165\u4e00\u6761\u65b0\u7684\u6570\u636e\uff0c`Z1`\uff0c\u7136\u540e\u5b83\u7684\u503c\u662f7\uff0c\u56e0\u4e3a\u73b0\u5728\u63d2\u5165\u7684\u662f\u4e00\u4e2a\u5206\u6570\u4e3a7\u7684\u5143\u7d20\uff0c\u5b83\u7684\u503c\u662f\u6700\u5927\u7684\uff0c\u4e5f\u5c31\u662f\u4ee3\u8868\u6700\u65b0\u7684\u6570\u636e\uff0c\u662f\u4e0d\u662f\u4f1a\u8dd1\u5230\u6211\u4eec\u6392\u540d\u7684\u6700\u524d\u8fb9\u3002\u90a3\u6b64\u65f6\u7684\u6e38\u6807\u5c31\u6df7\u4e71\u4e86\uff0c\u672c\u6765\u6211\u4eec\u76844\u53f7\u5143\u7d20\u6e38\u6807\u662f2\uff0c\u63d2\u5165\u4e86\u4e00\u4e2a\u65b0\u7684\u5143\u7d20\u4ee5\u540e\uff0c\u5b83\u6e38\u6807\u662f\u4e0d\u662f\u975e\u5e38\u53d8\u5316\u4e86\u3002\u6240\u4ee5\u8fd9\u4e2a\u65f6\u5019\u518d\u6765\u67e5\u7b2c\u4e8c\u9875\uff0c\u90a3\u7406\u8bba\u4e0a\u7b2c\u4e8c\u9875\u67e5\u7684\u65f6\u5019\u5e94\u8be5\u4ece\u54ea\u513f\u5f00\u59cb\u67e5\uff0c\u7b2c\u4e00\u9875\u67e5\u52302\u4e86\uff0c\u90a3\u7b2c\u4e8c\u9875\u662f\u4e0d\u662f\u4ece3\u5f00\u59cb\u67e5\uff0c3\u30014\u30015\u67e5\u52305\uff0c\u5e94\u8be5\u662f\u8fd9\u6837\u67e5\u5427\u3002\u6211\u4eec\u671f\u671b\u67e5\u5230\u662f\u4e0d\u662f3\u30012\u30011\uff0c\u4f46\u4f60\u5b9e\u9645\u67e5\u5230\u662f4\u30013\u30012\uff0c\u521a\u624d\u8bf4\u8fc7\u4e86\uff0c\u6e38\u6807\u53d1\u751f\u53d8\u5316\u4e86\uff0c\u6240\u4ee5\u8fd9\u5c31\u662f\u6309\u6e38\u6807\u67e5\u8be2\u6240\u5b58\u5728\u7684\u95ee\u9898\u3002<\/p>\n\n\n\n<p>\u8981\u89e3\u51b3\u8fd9\u4e2a\u95ee\u9898\uff0c\u5c31\u4e0d\u80fd\u6309\u6e38\u6807\u67e5\uff0c\u90a3\u6309\u4ec0\u4e48\u67e5\u5462\uff0c\u6309\u5206\u6570score\u67e5\u8be2\u3002\u6211\u4eec\u56de\u5230\u684c\u9762\u5ba2\u6237\u7aef\uff0c\u4e5f\u5c31\u662f\u8bf4\u6211\u4e0d\u770b\u6e38\u6807\u4e86\uff0c\u6211\u770b\u5206\u657065432\uff0c\u5bf9\u5427\uff0c\u6211\u67e5\u7684\u65f6\u5019\u7b2c\u4e00\u6b21\u6211\u5c31\u4ece\u6700\u5927\u7684\u5206\u6570\u5f00\u59cb\u67e5\uff0c\u67e5\u4e09\u6761\uff0c\u6211\u5c31\u6570\u4e09\u6761\uff0c\u6211\u4e0d\u7ba1\u4f60\u6e38\u6807\u662f\u4ec0\u4e48\uff0c\u4ece\u6700\u5927\u5f00\u59cb654\uff0c\u7b2c\u4e00\u67e5\u5b8c\u4e86\uff0c\u5f53\u6211\u8981\u67e5\u4e0b\u4e00\u9875\u7684\u65f6\u5019\u600e\u4e48\u529e\uff0c\u8bf6\uff0c\u6211\u8bb0\u4f4f\u4e0a\u4e00\u6b21\u67e5\u5230\u54ea\u4e86\u54e6\uff0c\u4e0a\u6b21\u67e5\u52304\u4e86\u662f\u5427\uff0c\u597d\uff0c\u65e2\u7136\u662f\u6709\u5e8f\u7684\uff0c\u800c\u4e14\u662f\u5012\u5e8f\uff0c\u90a3\u6211\u4e0b\u6b21\u518d\u67e5\u51fa\uff0c\u6211\u53ea\u8981\u67e5\u6bd44\u5c0f\u7684\u90a3\u4e9b\u6570\u636e\u5c31OK\u4e86\u3002\u6ce8\u610f\u542c\u4e86\uff0c\u627e\u6bd44\u5c0f\u7684\u90a3\u4e9b\u6570\u636e\u5c31\u884c\u4e86\uff0c\u6240\u4ee5\u8bf4\u6309\u7167\u5206\u6570\u5927\u5c0f\u6765\u6392\u5217\uff0c\u7b2c\u56db\u5c0f\u5427\uff0c\u4ece\u8fd9\u5f00\u59cb\u521a\u597d\u4e09\u6761\u662f\u4e0d\u662f3\u30012\u30011\uff0c\u6240\u4ee5\u5b83\u5c31\u80fd\u907f\u514d\u56e0\u4e3a\u6e38\u6807\u53d8\u5316\u5bfc\u81f4\u7684\u6df7\u4e71\u4e86\u3002\u6211\u4eec\u6765\u8bd5\u4e00\u4e0b\uff0c\u6211\u4eec\u6253\u5f00\u63a7\u5236\u53f0\uff0c\u8fd9\u91cc\u9996\u5148\u8981\u53bb\u770b\u4e00\u4e0b\u547d\u4ee4\uff0c\u8fd9\u4e2a\u547d\u4ee4\u4f1a\u4e0d\u4e00\u6837\uff0c\u5b83\u4e0d\u518d\u662f`ZREVRANGE`\u4e86\uff0c\u800c\u662f`ZRANGEBYSCORE`\uff0c\u4e5f\u5c31\u662f\u6839\u636e\u5206\u6570\u5dee\uff0c\u800c\u8fd9\u4e2a\u5730\u65b9\u6307\u5b9a\u7684\u4e5f\u4e0d\u662f\u6e38\u6807\u7684\u5f00\u59cb\u7ed3\u675f\u4e86\uff0c\u800c\u662f\u5206\u6570\u7684\u6700\u5927\u503c\u548c\u6700\u5c0f\u503c\u3002\u73b0\u5728\u6211\u4eec\u6765\u8bd5\u4e00\u4e0b\uff0c\u6765`ZRANGEBYSCORE`\u5bf9\u5427\uff0c`k`\u8fd8\u662f`z1`\uff0c\u6700\u5927\u503c\u662f\u8c01\u5462\uff0c\u6211\u4eec\u7ed9\u4f60\u627e\u597d\u4e86\uff0c\u6700\u5927\u503c\u662f\u4e0d\u662f\u4e0a\u4e00\u6b21\u67e5\u8be2\u7684\u6700\u5c0f\u7684\u90a3\u4e2a\u5206\u6570\u554a\uff0c\u90a3\u6211\u73b0\u5728\u662f\u7b2c\u4e00\u6b21\u6765\u554a\uff0c\u90a3\u6211\u8fd9\u4e2a\u7ed9\u4ec0\u4e48\u554a\uff0c\u90a3\u80af\u5b9a\u662f\u7ed9\u5f53\u524d\u65f6\u95f4\u6233\u7684\u6700\u5927\u503c\u4e86\uff0c\u56e0\u4e3a\u5c06\u6765\u6211\u4eec\u8fd9\u4e2a\u601d\u8003\u503c\u53ef\u4e0d\u662f456\uff0c\u6211\u4eec\u662f\u4ec0\u4e48\uff0c\u6211\u4eec\u662f\u65f6\u95f4\u6233\uff0c\u6240\u4ee5\u4f5c\u4e3a\u65f6\u95f4\u6233\u6765\u8bb2\uff0c\u6700\u5927\u503c\u5c31\u662f\u4ec0\u4e48\uff0c\u662f\u4e0d\u662f\u5c31\u662f\u5f53\u524d\u65f6\u95f4\u6233\u554a\uff0c\u90a3\u6211\u4eec\u73b0\u5728\u65e2\u7136\u662f\u7528456\u8fd9\u79cd\u6570\u5b57\u6765\u6a21\u62df\u7684\uff0c\u90a3\u54b1\u4eec\u5c31\u968f\u4fbf\u7ed9\u4e2a\u503c\uff0c1000\u591f\u5927\u4e86\u5427\uff0c\u90a3\u63a5\u4e0b\u6765\u4f60\u8bb0\u4f4f\u554a\uff0c\u8fd9\u4e2a\u6700\u5c0f\u503c\u5c31\u662f\u5f53\u524d\u65f6\u95f4\u6233\u597d\uff0c\u90a3\u6700\u5c0f\u503c\u5176\u5b9e\u6700\u5c0f\u6211\u4eec\u5173\u5fc3\u5417\uff0c\u4e0d\u5173\u5fc3\u5bf9\u4e0d\u5bf9\uff0c\u4f60\u770b\u6211\u4eec\u521a\u624d\u8bb2\u4e86\uff0c\u6211\u4eec\u6eda\u52a8\u67e5\u8be2\u7684\u601d\u8def\u662f\u8bb0\u4f4f\u4e0a\u4e00\u6b21\u7684\u67e5\u5230\u54ea\u4e86\uff0c\u4ece\u54ea\u5f00\u59cb\u6570\u4e09\u6761\u5c31\u884c\u4e86\uff0c\u6240\u4ee5\u6211\u53ea\u5173\u5fc3\u4e24\u4e2a\u4e8b\uff0c\u7b2c\u4e00\u4ece\u54ea\u513f\u5f00\u59cb\u7684\uff0c\u7b2c\u4e8c\u603b\u5171\u5dee\u51e0\u6761\uff0c\u6240\u4ee5\u4f60\u8fd9\u4e2a\u6700\u5c0f\u503c\u6211\u662f\u4e0d\u5173\u5fc3\uff0c\u90a3\u4e0d\u5173\u5fc3\uff0c\u6211\u5c31\u7ed9\u4e2a\u6700\u5c0f\u503c\u5457\uff0c\u65f6\u95f4\u7684\u6700\u5c0f\u503c\u662f0\uff0c\u56e0\u4e3a\u65f6\u95f4\u6ca1\u6709\u8d1f\u6570\uff0c\u662f\u4e0d\u662f\u597d\u4e86\u597d\uff0c\u7136\u540e\u5462\u95ee\u4f60\u8981\u4e0d\u8981\u5e26\u5206\u6570\u554a\uff0c\u90a3\u6211\u5e26\u4e0a\u5457\uff0c`WITHSCORES`\u597d\uff0c\u5230\u8fd9\u6ca1\u6709\u7ed3\u675f\uff0c\u56e0\u4e3a\u4f60\u8fd8\u8981\u544a\u8bc9\u4ed6\u4e00\u4ef6\u4e8b\u554a\uff0c\u5c31\u662f\u4ece\u8fd9\u5f00\u59cb\u6211\u8981\u67e5\u51e0\u6761\u5462\uff0c\u54ce\u6240\u4ee5\u540e\u9762\u8fd8\u6709`LIMIT`\uff0c\u90a3\u4e48\u8fd9\u4e2a`LIMIT`\u91cc\u9762\u6709\u4fe9\u53c2\u6570\uff0c`offset`\u548c`count`\uff0c\u8fd9\u91cc\u7684`offset`\u4ee3\u8868\u7684\u542b\u4e49\u662f\u6307\u504f\u79fb\u91cf\u4ec0\u4e48\uff0c\u504f\u79fb\u91cf\u5c31\u662f\u4ece\u6700\u5927\u503c\u5f00\u59cb\u7684\u7b2c\u51e0\u4e2a\u5143\u7d20\u67e5\u8be2\uff0c\u800c\u8fd9\u91cc\u7684\u6700\u5927\u503c\u6700\u5c0f\u503c\u554a\u90fd\u662f\u5305\u542b\u5173\u7cfb\u554a\uff0c\u5927\u4e8e\u7b49\u4e8e\u5c0f\u4e8e\u7b49\u4e8e\uff0c\u6240\u4ee5\u8bf4\u5462\u5982\u679c\u504f\u79fb\u91cf\u4f60\u7ed9\u4e86\u96f6\uff0c\u5c31\u662f\u4ece\u554a\u5c0f\u4e8e\u7b49\u4e8e\u6700\u5927\u503c\u7684\u7b2c\u4e00\u4e2a\u5143\u7d20\u5f00\u59cb\u67e5\uff0c\u90a3\u5982\u679c\u7ed9\u4e86\u4e00\u5462\uff0c\u5c31\u662f\u5c0f\u4e8e\u7b49\u4e8e\u6700\u5927\u503c\u7684\u7b2c\u4e8c\u4e2a\u5143\u7d20\u5f00\u59cb\uff0c\u90a3\u5728\u8fd9\u513f\u5462\u6211\u4eec\u662f\u7b2c\u4e00\u6b21\u6765\uff0c\u90a3\u6211\u4eec\u80af\u5b9a\u662f\u4ece\u7b2c\u4e00\u4e2a\u5143\u7d20\u5f00\u59cb\u561b\uff0c\u6240\u4ee5\u5728\u8fd9\u513f\u5462\u6211\u4eec\u7ed9\u96f6\uff0c\u4f46\u662f\u5982\u679c\u4f60\u662f\u7b2c\u4e8c\u6b21\u6216\u7b2c\u4e09\u6b21\u6765\uff0c\u90a3\u8fd9\u4e2a\u5730\u65b9\u53ef\u5c31\u4e0d\u4e00\u5b9a\u4e86\uff0cok\u540e\u8fb9\u8ddf\u4e0a`count`\uff0c\u8fd9\u4e2a`count`\u662f\u6307\u603b\u5171\u67e5\u51e0\u6761\uff0c\u6bd4\u65b9\u8bf4\u6211\u4eec\u5c31\u67e5\u4e09\u6761\uff0c\u90a3\u5c31\u7ed9\u4e09\u89d2\u5f62\u597d\uff0c\u5199\u5b8c\u4e86\u8d70\u67e5\u4e86\u662f765\u554a\uff0c\u56e0\u4e3a\u521a\u624d\u6709\u4e00\u6761\u4e03\u561b\uff0c\u5bf9\u4e0d\u5bf9\uff0c\u597d765\uff0c\u90a3\u6211\u73b0\u5728\u518d\u67e5\u4e0b\u4e00\u9875\uff0c\u6211\u671f\u671b\u67e5\u5230\u7684\u662f\u4ec0\u4e48\uff0c\u662f\u4e0d\u662f432\uff0c\u4f46\u662f\u5c31\u5728\u6b64\u65f6\uff0c\u6709\u4eba\u63d2\u5165\u4e00\u6761\u65b0\u7684\u6570\u636e\u662f\u516b\uff0c\u90a3\u4e00\u65e6\u4ed6\u51fa\u4e86\u4e00\u4e2a\u65b0\u7684\u516b\uff0c\u90a3\u7ebf\u662f\u6700\u5927\u7684\uff0c\u5b83\u662f\u4e0d\u662f\u8dd1\u5230\u4e86\u6211\u4eec\u6700\u524d\u9762\u53bb\u4e86\uff0c\u5c11\u4e86\u4e00\u4e2a`z1`\u554a\uff0c\u662f\u4e0d\u662f\u8dd1\u5230\u6700\u524d\u9762\u53bb\u4e86\uff0c\u90a3\u5b83\u4e00\u65e6\u8dd1\u5230\u6700\u524d\u8fb9\uff0c\u90a3\u7406\u8bba\u4e0a\u8bb2\uff0c\u5982\u679c\u6309\u7167\u6e38\u6807\u67e5\uff0c\u662f\u4e0d\u662f\u6df7\u6742\u4e86\uff0c\u4f46\u73b0\u5728\u6211\u4eec\u6309\u7167\u8303\u56f4\u67e5\uff0c\u597d\u6ce8\u610f\u770b\u4e86\uff0c\u6211\u4eec\u8bb2\u4e86\u8981\u6307\u5b9a\u6700\u5927\u503c\uff0c\u6700\u5c0f\u503c\u5bf9\u4e0d\u5bf9\uff0c\u6700\u5927\u503c\u662f\u4e0a\u4e00\u6b21\u67e5\u8be2\u7684\u4ec0\u4e48\u6700\u5c0f\u503c\uff0c\u56e0\u4e3a\u5b83\u662f\u6309\u8fd9\u4e2a\u5206\u6570\u5012\u5e8f\uff0c\u6211\u53ea\u8981\u627e\u6bd4\u4ed6\u5c0f\u5c31\u884c\u4e86\uff0c\u6bd4\u8c01\u5c0fb5\uff0c\u56e0\u4e3a\u4e0a\u6b21\u67e5\u8be2\u6700\u5c0f\u503c\u662f\u4e0d\u662f\u4e94\u6bd4\u4e94\u5c0f\u7684\u554a\uff0c\u6700\u5c0f\u503c\u4e0d\u7ba1\uff0c\u7136\u540e\u5462\uff0c`WITHSCORES LIMIT`\uff0c\u8fd9\u4e2a\u5730\u65b9\u4e0d\u80fd\u7ed9\u96f6\u554a\uff0c\u521a\u624d\u8bf4\u4e86\uff0c\u96f6\u4ee3\u8868\u7684\u662f\u5c0f\u4e8e\u7b49\u4e8e\u6700\u5927\u503c\u7684\u7b2c\u4e00\u4e2a\u5143\u7d20\uff0c\u90a3\u8fd9\u91cc\u7684\u6700\u5927\u503c\u662f\u4e94\uff0c\u90a3\u662f\u4e0d\u662f\u628a\u4e94\u4e5f\u5305\u542b\u8fdb\u53bb\u4e86\uff0c\u5f53\u6211\u4eec\u8981\u4ece\u4e94\u5f00\u59cb\uff0c\u662f\u4e0d\u662f\u8981\u627e\u4e0b\u4e00\u4e2a\uff0c\u6240\u4ee5\u8fd9\u4e2a\u504f\u79fb\u91cf\u5c31\u4e0d\u80fd\u7ed9\u96f6\u4e86\uff0c\u8981\u7ed9\u6210\u4e00\uff0c\u5bf9\u4e0d\u5bf9\u554a\uff0csize\u4e0d\u53d8\u8fd8\u662f\u4e09\uff0c\u597d\u8d70\uff0c\u4f60\u770b432\uff0c\u8fd9\u5c31\u662f\u6eda\u52a8\u67e5\u8be2\uff0c\u6bcf\u4e00\u6b21\u67e5\u8be2\u90fd\u8bb0\u4f4f\u4e0a\u4e00\u6b21\u67e5\u8be2\u7684\u6700\u5c0f\u503c\u662f\u8c01\uff0c\u8fd9\u6837\u5c31\u80fd\u907f\u514d\u91cd\u590d\u67e5\u8be2\uff0c\u4e0d\u7528\u5173\u5fc3\u554a\u524d\u8fb9\u7684\u6392\u540d\u6709\u6ca1\u6709\u53d8\u5316\uff0c\u662f\u4e0d\u662f\u89e3\u51b3\u4e86\u8fd9\u4e2a\u95ee\u9898\u4e86\u3002<\/p>\n\n\n\n<p>\u90a3\u6211\u4eec\u6765\u603b\u7ed3\u4e00\u4e0b\uff0c\u8981\u60f3\u5b9e\u73b0\u6eda\u52a8\u67e5\u8be2\u548c\u6eda\u52a8\u5206\u9875\uff0c\u5176\u5b9e\u6211\u4eec\u4e00\u5b9a\u8981\u4f20\u56db\u4e2a\u53c2\u6570\uff0c\u5bf9\u4e0d\u5bf9\uff0c\u5206\u522b\u662f\u6700\u5927\u503c\u3001\u5206\u6570\u7684\u6700\u5927\u503c\u3001\u5206\u6570\u7684\u6700\u5c0f\u503c\u3001\u504f\u79fb\u91cfoffset\u4ee5\u53ca\u67e5\u7684\u6570\u91cf\u3002\u5728\u8fd9\u91cc\u9762\u5176\u5b9e\u6709\u4e24\u4e2a\u503c\u662f\u56fa\u5b9a\u4e0d\u53d8\u7684\uff0c\u6700\u5c0f\u503c\uff0c\u56e0\u4e3a\u6211\u4eec\u5728\u505a\u6eda\u52a8\u5206\u9875\u7684\u65f6\u5019\uff0c\u6211\u53ea\u5173\u5fc3\u7684\u662f\u4e0a\u4e00\u6b21\u67e5\u5230\u54ea\u4e86\uff0c\u4ee5\u53ca\u603b\u5171\u5dee\u51e0\u6761\u561b\uff0c\u6240\u4ee5\u8fd9\u4e2a\u4e1c\u897f\u4e0d\u7528\u7ba1\uff0c\u6c38\u8fdc\u7ed9\u96f6\u5c31\u884c\u4e86\u554a\uff0c\u800c\u6bcf\u9875\u67e5\u51e0\u6761\uff0c\u8fd9\u4e2a\u4e1c\u897f\u503c\u662f\u4e0d\u662f\u4e5f\u662f\u56fa\u5b9a\u7684\uff0c\u4f60\u6bcf\u9875\u67e5\u591a\u5c11\u6761\uff0c\u90a3\u80af\u5b9a\u5c31\u662f\u4e09\u561b\uff0c\u54b1\u4eec\u8fd9\u4e2a\u5206\u9875\u5c06\u6765\u8ddf\u524d\u7aef\u5546\u91cf\u597d\u662f\u4e0d\u884c\u4e86\uff0c\u6216\u8005\u4f60\u4e94\u4ec0\u4e48\u7684\uff0c\u4f46\u80af\u5b9a\u662f\u56fa\u5b9a\u7684\uff0c\u6240\u4ee5\u5462\u8fd9\u4e24\u4e2a\u4e1c\u897f\u5c06\u6765\u54b1\u4eec\u662f\u4e0d\u7528\u7ba1\u5c31\u5199\u6b7b\uff0c\u4f46\u662f\u53d8\u5316\u7684\u662f\u4ec0\u4e48\uff0c\u53d8\u5316\u7684\u662f\u8fd9\u4e2amax\uff0c\u8fd9\u4e0d\u662f\u6700\u5927\u503c\u5417\uff0c\u8fd9\u4e2a\u6700\u5927\u503c\u6211\u4eec\u521a\u624d\u8bf4\u4e86\uff0c\u5b83\u662f\u6bcf\u4e00\u6b21\u554a\u67e5\u8be2\u7684\u65f6\u5019\u8981\u53bb\u627e\u4ec0\u4e48\uff0c\u627e\u4e0a\u4e00\u6b21\u67e5\u8be2\u7684\u90a3\u4e2a\u6700\u5c0f\u7684\u5206\u6570\uff0c\u8fd9\u6837\u4e0b\u4e00\u6b21\u6211\u662f\u4e0d\u662f\u4ece\u8fd9\u5f00\u59cb\u5f80\u540e\u67e5\u5c31\u884c\uff0c\u662f\u4e0a\u4e00\u6b21\u67e5\u8be2\u6700\u5c0f\u503c\uff0c\u56e0\u6b64\u5b83\u662f\u53ef\u80fd\u4f1a\u53d8\u5316\u7684\uff0c\u6bcf\u4e00\u6b21\u5c31\u627e\u4e0a\u67e5\u8be2\u6700\u5c0f\u503c\uff0c\u8c01\u9664\u5916\u5462\uff0c\u7b2c\u4e00\u6b21\u9664\u5916\uff0c\u7b2c\u4e00\u6b21\u7684\u65f6\u5019\u6ca1\u6709\u4e0a\u4e00\u6b21\u67e5\u8be2\uff0c\u5bf9\u4e0d\u5bf9\uff0c\u6240\u4ee5\u7b2c\u4e00\u6b21\u7684\u65f6\u5019\u600e\u4e48\u529e\uff0c\u7b2c\u4e00\u6b21\u6211\u4eec\u521a\u624d\u8bb2\u4e86\uff0c\u7ed9\u65f6\u95f4\u6233\u7684\u6700\u5927\u503c\uff0c\u4e5f\u5c31\u662f\u5f53\u524d\u65f6\u95f4\u6233\u554a\uff0c\u8fd9\u4e2a\u503c\u5c06\u6765\u6211\u4eec\u8981\u53bb\u52a8\u6001\u7684\u53d8\u5316\uff0c\u8fd8\u6709\u54ea\u4e2a\u53eb\u52a8\u6001\u53d8\u5316\uff0c\u8fd8\u6709\u5c31\u662f\u8fd9\u4e2alimit\uff0c\u7b2c\u4e00\u6b21limit\u7684\u65f6\u5019\uff0c\u6211\u4eec\u7ed9\u96f6\uff0c\u56e0\u4e3a\u7b2c\u4e00\u6b21\u6765\u80af\u5b9a\u662f\u4ece\u7b2c\u4e00\u6761\u5f00\u59cb\uff0c\u6ca1\u4ec0\u4e48\u597d\u8bf4\u7684\u554a\uff0c\u4e0d\u80fd\u6709\u504f\u79fb\u91cf\uff0c\u4f46\u662f\u5462\u4ee5\u540e\u5c31\u4e0d\u884c\u4e86\uff0c\u56e0\u4e3a\u8fd9\u4e2a\u4e94\u9ed8\u8ba4\u662f\u5c0f\u4e8e\u7b49\u4e8e\u7684\u610f\u601d\u554a\uff0c\u90a3\u5982\u679c\u8bf4\u4f60\u7ed9\u4e86\u96f6\uff0c\u4e5f\u5c31\u662f\u5305\u542b\u90a3\u4e94\u5c31\u53c8\u63d2\u56de\u6765\u4e86\uff0c\u90a3\u4e0d\u884c\uff0c\u6211\u4eec\u662f\u4ece\u5b83\u5f00\u59cb\u4e0d\u5305\u542b\u5b83\uff0c\u6240\u4ee5\u8bf4\u8fd9\u4e2a\u5730\u65b9offset\u662f\u4e00\uff0c\u4e5f\u5c31\u662f\u4ece\u5b83\u7684\u4e0b\u4e00\u4e2a\u5f00\u59cb\uff0c\u4e5f\u5c31\u662f\u8bf4\u7b2c\u4e00\u6b21\u6765\u7ed9\u96f6\uff0c\u540e\u6765\u7ed9\u4e00<\/p>\n\n\n\n<p><img loading=\"lazy\" decoding=\"async\" height=\"415\" width=\"744\" src=\"https:\/\/i-blog.csdnimg.cn\/direct\/91c12bc6765f49a29fcbc4d8bcb19ac3.png\" alt=\"\"><\/p>\n\n\n\n<p>\u6b64\u65f6z1\u91cc\u9762\u67098\u4e2a\u503c\u5bf9\uff0c&nbsp;\u5e94\u8be5\u67e5\u5230\u7684\u5e94\u8be5\u662f876\uff0c543\uff0c\u73b0\u5728\u628a7\u53f7\u5143\u7d20\u7684score\u6539\u4e3a6\uff0c\u6211\u4eec\u518d\u6253\u5f00\u63a7\u5236\u53f0\uff0c\u5728\u591a\u7ebf\u7a0b\u73af\u5883\u4e2d\uff0c\u591a\u4e2a\u7ebf\u7a0b\u53ef\u80fd\u5728\u540c\u4e00\u6beb\u79d2\u5185\u751f\u6210\u65f6\u95f4\u6233\uff0c\u5bfc\u81f4\u65f6\u95f4\u6233\u91cd\u590d\uff0c\u5c24\u5176\u662f\u79d2\u7ea7\u65f6\u95f4\u6233\uff0c\u53ef\u80fd\u91cd\u590d\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>127.0.0.1:6379&gt; ZREVRANGEBYSCORE z1 1000 0 WITHSCORES LIMIT 0 3\n1) \"m8\"\n2) \"8\"\n3) \"m7\"\n4) \"6\"\n5) \"m6\"\n6) \"6\"\n127.0.0.1:6379&gt; ZREVRANGEBYSCORE z1 5 0 WITHSCORES LIMIT 1 3\n1) \"m4\"\n2) \"4\"\n3) \"m3\"\n4) \"3\"\n5) \"m2\"\n6) \"2\"\n127.0.0.1:6379&gt; ZREVRANGEBYSCORE z1 6 0 WITHSCORES LIMIT 1 3\n1) \"m6\"\n2) \"6\"\n3) \"m5\"\n4) \"5\"\n5) \"m4\"\n6) \"4\"\n<\/code><\/pre>\n\n\n\n<p>\u663e\u71366\u88ab\u91cd\u590d\u67e5\u8be2\u4e86\uff0c\u5e94\u8be5\u8df3\u8fc7\u548c\u4e0a\u4e00\u6b21\u67e5\u8be2\u5927\u5c0f\u4e00\u6837\u7684\u6240\u6709\u503c\u3002\u8df3\u8fc7\u7684\u662f\u4e0a\u4e00\u6b21\u67e5\u8be2\u4e2d\u4e0e\u6700\u5c0fscore\u4e00\u6837\u7684\u5143\u7d20\u4e2a\u6570 \u800c\u4e0d\u662f\u6574\u4e2a\u96c6\u5408set\u4e2dscore\u4e00\u6837\u7684\u5143\u7d20\u4e2a\u6570\uff1b\u6709bug\uff1a\u5f53score(\u65f6\u95f4\u6233)\u76f8\u540c\u7684\u6570\u91cf\u5927\u4e8ecount\u7684\u4e8c\u500d\u65f6\uff0c\u5c31\u4f1a\u91cd\u590d\u6b7b\u5faa\u73af\u67e5\u8be2<\/p>\n\n\n\n<p>\u6eda\u52a8\u5206\u9875\u67e5\u8be2\u7684\u53c2\u6570\u603b\u5171\u6709\u56db\u4e2a\uff1a<code>max<\/code>\u3001<code>min<\/code>\u3001<code>offset<\/code>\u548c<code>count<\/code>\u3002\u5728\u8fd9\u4e9b\u53c2\u6570\u4e2d\uff0c\u6709\u4e24\u4e2a\u6211\u4eec\u901a\u5e38\u4e0d\u9700\u8981\u7ba1\u7406\uff0c\u4e00\u4e2a\u662f<code>min<\/code>\uff0c\u8fd9\u4e2a\u65f6\u95f4\u6233\u7684\u6700\u5c0f\u503c\uff0c\u6211\u4eec\u901a\u5e38\u4e0d\u9700\u8981\u5173\u5fc3\uff0c\u56e0\u4e3a\u5b83\u603b\u662f\u96f6\uff1b\u53e6\u4e00\u4e2a\u662f<code>count<\/code>\uff0c\u53ea\u8981\u4e0e\u524d\u7aef\u534f\u5546\u597d\uff0c\u786e\u5b9a\u6bcf\u6b21\u67e5\u8be2\u7684\u6761\u6570\uff0c\u5b83\u7684\u503c\u5c31\u662f\u56fa\u5b9a\u7684\uff0c\u6bd4\u5982\u6211\u4eec\u51b3\u5b9a\u6bcf\u6b21\u67e5\u4e09\u6761\uff0c\u90a3\u4e48<code>count<\/code>\u5c31\u56fa\u5b9a\u4e3a\u4e09\u3002<\/p>\n\n\n\n<p>\u5bf9\u4e8e<code>max<\/code>\u53c2\u6570\uff0c\u5b83\u7684\u503c\u6709\u4e24\u79cd\u60c5\u51b5\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>\u7b2c\u4e00\u6b21\u67e5\u8be2\u65f6\uff0c\u7531\u4e8e\u6ca1\u6709\u4e0a\u4e00\u6b21\u67e5\u8be2\uff0c\u6240\u4ee5\u8fd9\u4e2a\u6700\u5927\u503c\u6211\u4eec\u7ed9\u7684\u662f\u5f53\u524d\u65f6\u95f4\u6233\uff0c\u56e0\u4e3a\u5bf9\u4e8e\u65f6\u95f4\u6233\u6765\u8bf4\uff0c\u5f53\u524d\u65f6\u95f4\u5c31\u662f\u6700\u5927\u503c\u3002<\/li>\n\n\n\n<li>\u5982\u679c\u4e0d\u662f\u7b2c\u4e00\u6b21\u67e5\u8be2\uff0c\u800c\u662f\u540e\u7eed\u7684\u518d\u6b21\u67e5\u8be2\uff0c\u90a3\u4e48<code>max<\/code>\u503c\u5c31\u662f\u4e0a\u4e00\u6b21\u67e5\u8be2\u7684\u6700\u5c0f\u503c\u3002<\/li>\n<\/ol>\n\n\n\n<p>\u5bf9\u4e8e<code>offset<\/code>\u53c2\u6570\uff0c\u4e5f\u6709\u4e24\u79cd\u60c5\u51b5\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>\u7b2c\u4e00\u6b21\u67e5\u8be2\u65f6\uff0c\u6211\u4eec\u80af\u5b9a\u4ece\u7b2c\u4e00\u4e2a\u5143\u7d20\u5f00\u59cb\uff0c\u6240\u4ee5<code>offset<\/code>\u7ed9\u96f6\u3002<\/li>\n\n\n\n<li>\u5982\u679c\u4e0d\u662f\u7b2c\u4e00\u6b21\u67e5\u8be2\uff0c\u90a3\u4e48<code>offset<\/code>\u7684\u503c\u53d6\u51b3\u4e8e\u4e0a\u4e00\u6b21\u67e5\u8be2\u7684\u7ed3\u679c\u4e2d\uff0c\u4e0e\u6700\u5c0f\u503c\u76f8\u540c\u7684\u5143\u7d20\u6709\u51e0\u4e2a\uff0c\u5b83\u5c31\u662f\u51e0\u3002\u5728\u4e0a\u4e00\u6b21\u7684\u7ed3\u679c\u4e2d\uff0c\u4e0e\u6700\u5c0f\u503c\u76f8\u540c\u7684\u5143\u7d20\u7684\u4e2a\u6570\uff0c\u5c31\u662f\u6211\u4eec\u7684<code>offset<\/code>\u503c\u3002\u4f8b\u5982\uff0c\u5982\u679c\u4e0a\u4e00\u6b21\u7ed3\u679c\u4e2d\u6709\u4e0e\u6700\u5c0f\u503c\u76f8\u540c\u7684\u5143\u7d20\u6709\u4e24\u4e2a\uff0c\u90a3\u4e48<code>offset<\/code>\u5c31\u662f\u4e8c\u3002<\/li>\n<\/ol>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p>\u6eda\u52a8\u5206\u9875\u67e5\u8be2\u53c2\u6570\uff1a<br>max\uff1a\u5f53\u524d\u65f6\u95f4\u6233&nbsp; &nbsp; &nbsp;\u4e28&nbsp; &nbsp;\u4e0a\u4e00\u6b21\u67e5\u8be2\u7684\u6700\u5c0f\u65f6\u95f4\u6233<br>min:0<br>offset:0&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;|&nbsp; &nbsp;\u5728\u4e0a\u4e00\u6b21\u7684\u7ed3\u679c\u4e2d\uff0c\u4e0e\u6700\u5c0f\u503c\u4e00\u6837\u7684\u5143\u7d20\u7684\u4e2a\u6570<br>count:3<\/p>\n<\/blockquote>\n\n\n\n<p>&nbsp; \u5728dto\u4e2d\u65b0\u5efaScrollResult\u6587\u4ef6<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">package com.hmdp.dto;\n\nimport lombok.Data;\n\nimport java.util.List;\n\n@Data\npublic class ScrollResult {\n    private List&lt;?&gt; list;\n    private Long minTime;\n    private Integer offset;\n}\n<\/pre>\n\n\n\n<p>blogController\u4e2d\uff0c\u548cBlogServiceImpl\u4e2d\u5206\u522b\u5b9e\u73b0\uff0cIBlogService\u5b9e\u73b0\u4e0d\u4e88\u8d58\u8ff0<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>    @GetMapping(\"\/of\/follow\")\n    public Result queryBlogByFollow(@RequestParam(\"lastId\")Long max,@RequestParam(value=\"offset\",defaultValue=\"0\")Integer offset) {\n        return blogService.queryBlogOfFollow(max,offset);\n    }<\/code><\/pre>\n\n\n\n<p>\u6bd4\u5982\u6700\u540e\u4e00\u4e2ascore\u662f6\uff0c\u603b\u5171\u6709\u4e09\u4e2a6\u5206\u7684\uff0c\u4f46\u662f\u7b2c\u4e00\u9875\u53ea\u67e5\u51fa\u6765\u4e24\u4e2a6\u5206\u7684\uff0c\u4f60\u8df3\u4e86\u4e09\u4e2a6\u5206\u7684\uff0c\u90a3\u662f\u4e0d\u662f\u6f0f\u4e86\u4e00\u4e2a\uff1f\u5b9e\u9645\u4e0a\u53ea\u4f1a\u8df3\u8fc72\u4e2a6\uff0c\u4e0d\u662f\u8bf4\u8df3\u8fc7\u6240\u6709\u91cd\u590d\u7684\uff0c\u662f\u8df3\u8fc7\u4e0a\u4e00\u9875\u91cd\u590d\u7684\u6761\u6570\uff0c\u4e0a\u4e00\u9875\u91cd\u590d\u4e86\u591a\u5c11\u6761\uff0c\u5c31\u8df3\u8fc7\u591a\u5c11\u6761<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>    public Result queryBlogOfFollow(Long max, Integer offset) {\n        \/\/ 1. \u83b7\u53d6\u5f53\u524d\u7528\u6237\n        Long userId = UserHolder.getUser().getId();\n        \/\/ 2. \u67e5\u8be2\u6536\u4ef6\u7bb1 ZREVRANGEBYSCORE key Max Min LIMIT offset count\n        String key = FEED_KEY + userId;\n        Set&lt;ZSetOperations.TypedTuple&lt;String&gt;&gt; typedTuples = stringRedisTemplate.opsForZSet()\n                .reverseRangeByScoreWithScores(key, 0, 0, offset, 2);\n        \/\/ 3. \u975e\u7a7a\u5224\u65ad\n        if (typedTuples == null || typedTuples.isEmpty()) {\n            return Result.ok();\n        }\n        \/\/ 4. \u89e3\u6790\u6570\u636e: blogid, minTime\uff08\u65f6\u95f4\u6233\uff09, offset\n        List&lt;Long&gt; ids = new ArrayList&lt;&gt;(typedTuples.size());\n        long minTime = 0;\n        int os = 1;\n        for (ZSetOperations.TypedTuple&lt;String&gt; tuple : typedTuples) { \/\/\u5047\u8bbe5 4 4 2 2\n            \/\/\u8fd9\u91cc\u597d\u50cf\u6709bug\uff0c\u5b9a\u4e49\u65f6minTime=max\uff0cos=offest\u624d\u5bf9\uff0c\u5426\u5219\u50cf5 5 5 5 5 4 4\u7b49\u8fd9\u6837\u8fde\u7eed\u7684\u6253\u8fc72\u6b21\u7684\u8bdd\uff0c\u4f1a\u51fa\u9519\n            \/\/4.1.\u83b7\u53d6id\n            ids.add(Long.valueOf(tuple.getValue()));\n            \/\/4.2.\u83b7\u53d6\u5206\u6570\uff08\u65f6\u95f4\u6233\uff09\n            long time = tuple.getScore().longValue();\n            if (time == minTime) {\n                os++;\n            } else {\n                minTime = time;\n                os = 1;\n            }\n        }\n        \/\/5.\u6839\u636eid\u67e5\u8be2blog\n        String idStr = StrUtil.join(\",\", ids);\n        List&lt;Blog&gt; blogs =query().in(\"id\",ids).last(\"ORDER BY FIELD(id,\" + idStr + \")\").list();\n\n        for (Blog blog:blogs) {\n            \/\/5.1.\u67e5\u8be2blog\u6709\u5173\u7684\u7528\u6237\n            queryBlogUser(blog);\n            \/\/5.2.\u67e5\u8be2blog\u662f\u5426\u88ab\u70b9\u8d5e\n            isBlogLiked(blog);\n        }\n        \/\/6.\u5c01\u88c5\u8fd4\u56de\n        ScrollResult r =new ScrollResult();\n        r.setList(blogs);\n        r.setOffset(os);\n        r.setMinTime(minTime);\n        return Result.ok(r);\n    }<\/code><\/pre>\n\n\n\n<p>\u5728\u8fd9\u91cc\uff0c\u6211\u4eec\u5b9e\u73b0\u67e5\u8be2\u5173\u6ce8\u7528\u6237\u535a\u5ba2\u7684\u6eda\u52a8\u5206\u9875\u903b\u8f91\u3002\u9996\u5148\u83b7\u53d6\u5f53\u524d\u7528\u6237ID\uff0c\u901a\u8fc7\u7528\u6237ID\u5b9a\u4f4d\u5230\u5bf9\u5e94\u7684Redis\u6536\u4ef6\u7bb1ZSet\u952e\u3002\u4f7f\u7528reverseRangeByScoreWithScores\u65b9\u6cd5\u67e5\u8be2\u65f6\uff0c\u53c2\u6570\u5e94\u4e3amax\uff08\u6700\u5927\u65f6\u95f4\u6233\uff09\u30010\uff08\u6700\u5c0f\u503c\uff09\u3001offset\uff08\u504f\u79fb\u91cf\uff09\u30012\uff08\u6bcf\u9875\u6570\u91cf\uff09\uff0c\u800c\u975e\u4ee3\u7801\u4e2d\u7684\u56fa\u5b9a0\u503c\u3002\u67e5\u8be2\u7ed3\u679c\u4e3a\u5305\u542b\u535a\u5ba2ID\u548c\u65f6\u95f4\u6233\u7684TypedTuple\u96c6\u5408\u3002<\/p>\n\n\n\n<p>\u89e3\u6790\u6570\u636e\u65f6\uff0c\u904d\u5386TypedTuple\u96c6\u5408\uff0c\u5c06\u535a\u5ba2ID\u5b58\u5165\u5217\u8868\u3002\u9488\u5bf9\u65f6\u95f4\u6233\u5904\u7406\uff1a\u521d\u59cb\u5316minTime\u4e3a0\uff0c\u904d\u5386\u8fc7\u7a0b\u4e2d\u82e5\u5f53\u524d\u65f6\u95f4\u6233\u4e0eminTime\u4e0d\u540c\uff0c\u5219\u66f4\u65b0minTime\u5e76\u91cd\u7f6eos\u8ba1\u6570\u5668\uff1b\u82e5\u76f8\u540c\u5219os\u9012\u589e\u3002\u4f46\u5b58\u5728\u903b\u8f91\u7f3a\u9677\u2014\u2014\u5f53\u8fde\u7eed\u591a\u4e2a\u76f8\u540c\u65f6\u95f4\u6233\u65f6\uff08\u59825,5,5,4,4\uff09\uff0c\u5e94\u6bd4\u8f83\u5f53\u524d\u65f6\u95f4\u6233\u662f\u5426\u5c0f\u4e8eminTime\u6765\u52a8\u6001\u66f4\u65b0\uff0c\u800c\u975e\u76f4\u63a5\u8986\u76d6\u3002\u6b63\u786e\u505a\u6cd5\u5e94\u521d\u59cb\u5316minTime\u4e3aLong.MAX_VALUE\uff0c\u904d\u5386\u65f6\u53d6\u5f53\u524d\u65f6\u95f4\u6233\u4e0eminTime\u7684\u8f83\u5c0f\u503c\uff0c\u5e76\u52a8\u6001\u7ef4\u62a4os\u8ba1\u6570\u3002<\/p>\n\n\n\n<p>\u6839\u636e\u535a\u5ba2ID\u96c6\u5408\u67e5\u8be2\u6570\u636e\u5e93\u65f6\uff0c\u9700\u5904\u7406ID\u987a\u5e8f\u4e00\u81f4\u6027\u95ee\u9898\uff0c\u4f7f\u7528FIELD\u51fd\u6570\u4fdd\u6301\u4e0eRedis\u67e5\u8be2\u7ed3\u679c\u76f8\u540c\u7684\u987a\u5e8f\u3002\u6700\u540e\u5c01\u88c5ScrollResult\u65f6\uff0c\u9700\u8fd4\u56de\u535a\u5ba2\u5217\u8868\u3001\u5f53\u524d\u6700\u5c0f\u65f6\u95f4\u6233\u548coffset\u504f\u79fb\u91cf\uff0c\u4f9b\u4e0b\u4e00\u9875\u67e5\u8be2\u4f7f\u7528\u3002\u9700\u6ce8\u610foffset\u5b9e\u9645\u5e94\u8fd4\u56de\u5f53\u524d\u6279\u6b21\u4e2d\u6700\u540e\u4e00\u4e2a\u65f6\u95f4\u6233\u7684\u51fa\u73b0\u6b21\u6570\uff0c\u800c\u975e\u7d2f\u8ba1\u503c\u3002<\/p>\n\n\n\n<p>&nbsp;\u6700\u540e\u4e00\u6761\u5237\u65b0\u91cd\u590d\u7684\uff0c\u770b\u770b\u6709\u6ca1\u6709\u8bbe\u7f6eoffset\u7684\u503c\uff0c\u6ce8\u610f\u662f\u5c06os\u7684\u503c\u8bbe\u7f6e\u8fdb\u53bbr.setOffset(os)<br>\u8fd8\u662f\u6709\u95ee\u9898\u5427\uff0c\u4e00\u6b21\u67e5\u4e24\u6761\u7684\u8bdd\uff0c\u53ea\u8981\u4e2d\u95f4\u67094\u6761\u65f6\u95f4\u6233\u4e00\u6837\u7684\uff0c\u5c31\u4e00\u76f4\u67e5\u8fd94\u6761\u4e2d\u7684\u540e\u4e24\u6761\uff0c\u67e5\u4e0d\u5230\u4e4b\u540e\u7684\u6570\u636e\u4e86 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