{"id":201398,"date":"2025-05-10T08:14:55","date_gmt":"2025-05-10T00:14:55","guid":{"rendered":"https:\/\/server.hk\/cnblog\/201398\/"},"modified":"2025-05-10T08:14:55","modified_gmt":"2025-05-10T00:14:55","slug":"%e5%9f%ba%e4%ba%8eredis%e7%9a%84list%e5%ae%9e%e7%8e%b0%e7%89%b9%e4%bb%b7%e5%95%86%e5%93%81%e5%88%97%e8%a1%a8%e5%8a%9f%e8%83%bd","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/201398\/","title":{"rendered":"\u57fa\u4e8eRedis\u7684List\u5b9e\u73b0\u7279\u4ef7\u5546\u54c1\u5217\u8868\u529f\u80fd"},"content":{"rendered":"<p><b><\/b> <\/p>\n<h1>\u57fa\u4e8eRedis\u7684List\u5b9e\u73b0\u7279\u4ef7\u5546\u54c1\u5217\u8868\u529f\u80fd<\/h1>\n<p><span style=\"cursor: pointer\"><i><\/i>\u6536\u85cf<\/span> <\/p>\n<p>\u672c\u7bc7\u6587\u7ae0\u7ed9\u5927\u5bb6\u5206\u4eab\u300a\u57fa\u4e8eRedis\u7684List\u5b9e\u73b0\u7279\u4ef7\u5546\u54c1\u5217\u8868\u529f\u80fd\u300b\uff0c\u8986\u76d6\u4e86\u6570\u636e\u5e93\u7684\u5e38\u89c1\u57fa\u7840\u77e5\u8bc6\uff0c\u5176\u5b9e\u4e00\u4e2a\u8bed\u8a00\u7684\u5168\u90e8\u77e5\u8bc6\u70b9\u4e00\u7bc7\u6587\u7ae0\u662f\u4e0d\u53ef\u80fd\u8bf4\u5b8c\u7684\uff0c\u4f46\u5e0c\u671b\u901a\u8fc7\u8fd9\u4e9b\u95ee\u9898\uff0c\u8ba9\u8bfb\u8005\u5bf9\u81ea\u5df1\u7684\u638c\u63e1\u7a0b\u5ea6\u6709\u4e00\u5b9a\u7684\u8ba4\u8bc6(B \u6570)\uff0c\u4ece\u800c\u5f25\u8865\u81ea\u5df1\u7684\u4e0d\u8db3\uff0c\u66f4\u597d\u7684\u638c\u63e1\u5b83\u3002<\/p>\n<h2>&nbsp;1\u3001\u573a\u666f\u5206\u6790<\/h2>\n<p>\u6dd8\u5b9d\u4eac\u4e1c\u7684\u7279\u4ef7\u5546\u54c1\u5217\u8868\uff0c<\/p>\n<p>\u5546\u54c1\u7279\u70b9\uff1a<\/p>\n<ul>\n<li>\u5546\u54c1\u6709\u9650\uff0c\u5e76\u53d1\u91cf\u975e\u5e38\u7684\u5927\u3002<\/li>\n<li>\u8003\u8651\u5206\u9875<\/li>\n<\/ul>\n<p>\u4f20\u7edf\u89e3\u51b3\u65b9\u6848\uff1a\u6570\u636e\u5e93db\uff0c<\/p>\n<p>\u4f46\u662f\u5728\u5982\u6b64\u5927\u7684\u5e76\u53d1\u91cf\u7684\u60c5\u51b5\u4e0b\uff0c\u4e0d\u53ef\u53d6\u3002<\/p>\n<p>\u4e00\u822c\u4f1a\u91c7\u7528redis\u6765\u5904\u7406\u3002\u8fd9\u4e9b\u7279\u4ef7\u5546\u54c1\u7684\u6570\u636e\u4e0d\u591a\uff0c\u800c\u4e14redis\u7684list\u672c\u8eab\u4e5f\u652f\u6301\u5206\u9875\u3002\u662f\u5929\u7136\u5904\u7406\u8fd9\u79cd\u5217\u8868\u7684\u6700\u4f73\u9009\u62e9\u89e3\u51b3\u65b9\u6848\u3002<\/p>\n<h2>2\u3001\u5206\u6790<\/h2>\n<p>\u91c7\u7528list\u6570\u636e\uff0c\u56e0\u4e3alist\u6570\u636e\u7ed3\u6784\u6709\uff1alrange key 0 -1 \u53ef\u4ee5\u8fdb\u884c\u6570\u636e\u7684\u5206\u9875\u3002<\/p>\n<pre>\n127.0.0.1:6379&gt; lpush products p1 p2 p3 p4 p5 p6 p7 p8 p9 p10\n(integer) 10\n127.0.0.1:6379&gt; lrange products 0 1\n1) \"p10\"\n2) \"p9\"\n127.0.0.1:6379&gt; lrange products 2 3\n1) \"p8\"\n2) \"p7\"\n127.0.0.1:6379&gt; lrange products 4 5\n1) \"p6\"\n2) \"p5\"<\/pre>\n<h2>3 \u3001\u5177\u4f53\u5b9e\u73b0<\/h2>\n<p>\u6dd8\u5b9d\uff0c\u4eac\u4e1c\u7684\u70ed\u95e8\u5546\u54c1\u5728\u53cc11\u7684\u65f6\u5019\uff0c\u53ef\u80fd\u6709100\u591aw\u9700\u8981\u641e\u6d3b\u52a8\uff1a\u7a0b\u5e8f\u9700\u89815\u5206\u949f\u5bf9\u7279\u4ef7\u5546\u54c1\u8fdb\u884c\u5237\u65b0\u3002<\/p>\n<h3>3.1 ProductListService\u7c7b<\/h3>\n<ul>\n<li>&nbsp;\u521d\u59cb\u5316\u7684\u6d3b\u52a8\u7684\u5546\u54c1\u4fe1\u606f100\u4e2a\uff08\u4ece\u6570\u636e\u5e93\u53bb\u67e5\u8be2\uff09<\/li>\n<\/ul>\n<p>@PostContrcut\u4f7f\u7528<\/p>\n<ul>\n<li>&nbsp;\u67e5\u8be2\u4ea7\u54c1\u5217\u8868\u4fe1\u606f<\/li>\n<\/ul>\n<p>\u6362\u7b97\u7684\u5206\u9875\u7684\u8d77\u59cb\u4f4d\u7f6e\u548c\u7ed3\u675f\u4f4d\u7f6e<\/p>\n<pre>\npackage com.example.service;\n\nimport com.example.entity.Product;\nimport lombok.extern.slf4j.Slf4j;\nimport org.springframework.beans.factory.annotation.Autowired;\nimport org.springframework.data.redis.core.RedisTemplate;\nimport org.springframework.stereotype.Service;\n\nimport javax.annotation.PostConstruct;\nimport java.util.ArrayList;\nimport java.util.List;\nimport java.util.Random;\n\n\/**\n * @Auther: \u957f\u9888\u9e7f\n * @Date: 2021\/08\/29\/18:00\n * @Description:\n *\/\n@Service\n@Slf4j\npublic class ProductListService {\n\n    @Autowired\n    private RedisTemplate redisTemplate;\n\n    \/\/ \u6570\u636e\u70ed\u52a0\u8f7d\n    @PostConstruct\n    public void initData(){\n        log.info(\"\u542f\u52a8\u5b9a\u65f6\u52a0\u8f7d\u7279\u4ef7\u5546\u54c1\u5230redis\u7684list\u4e2d...\");\n        new Thread(() -&gt; runCourse()).start();\n    }\n\n    public void runCourse() {\n        while (true) {\n            \/\/ \u4ece\u6570\u636e\u5e93\u4e2d\u67e5\u8be2\u51fa\u7279\u4ef7\u5546\u54c1\n            List\n   \n     productList = this.findProductsDB();\n            \/\/ \u5220\u9664\u539f\u6765\u7684\u7279\u4ef7\u5546\u54c1\n            this.redisTemplate.delete(\"product:hot:list\");\n            \/\/ \u628a\u7279\u4ef7\u5546\u54c1\u6dfb\u52a0\u5230\u96c6\u5408\u4e2d\n            this.redisTemplate.opsForList().leftPushAll(\"product:hot:list\", productList);\n            try {\n                \/\/ \u6bcf\u9694\u4e00\u5206\u949f\u6267\u884c\u4e00\u6b21\n                Thread.sleep(1000 * 60);\n                log.info(\"\u5b9a\u65f6\u5237\u65b0\u7279\u4ef7\u5546\u54c1....\");\n            } catch (Exception ex) {\n                ex.printStackTrace();\n            }\n        }\n    }\n\n    \/**\n     * \u6570\u636e\u5e93\u4e2d\u67e5\u8be2\u7279\u4ef7\u5546\u54c1\n     *\n     * @return\n     *\/\n    public List\n    \n      findProductsDB() { \/\/List\n     \n       productList = productMapper.selectListHot(); List\n      \n        productList = new ArrayList(); for (long i = 1; i \n       <h3>3.2 \u5546\u54c1\u7684\u6570\u636e\u63a5\u53e3\u7684\u5b9a\u4e49\u548c\u5c55\u793a\u53ca\u5206\u9875<\/h3> \n       <pre>\npackage com.example.controller;\n\nimport com.example.entity.Product;\nimport com.example.service.ProductListService;\nimport org.springframework.beans.factory.annotation.Autowired;\nimport org.springframework.data.redis.core.RedisTemplate;\nimport org.springframework.util.CollectionUtils;\nimport org.springframework.web.bind.annotation.GetMapping;\nimport org.springframework.web.bind.annotation.RestController;\n\nimport java.util.List;\n\n\/**\n * @Auther: \u957f\u9888\u9e7f\n * @Date: 2021\/08\/29\/18:04\n * @Description:\n *\/\n@RestController\npublic class ProductListController {\n\n    @Autowired\n    private RedisTemplate redisTemplate;\n    @Autowired\n    private ProductListService productListService;\n\n    @GetMapping(\"\/findProducts\")\n    public List\n        \n          findProducts(int pageNo, int pageSize) {\n\n        \/\/ \u4ece\u90a3\u4e2a\u96c6\u5408\u53bb\u67e5\u8be2\n        String key = \"product:hot:list\";\n        \/\/ \u5206\u9875\u7684\u5f00\u59cb\u7ed3\u675f\u7684\u6362\u7b97\n        if (pageNo  productList = this.redisTemplate.opsForList().range(key, start, end);\n            if (CollectionUtils.isEmpty(productList)) {\n                \/\/todo: \u67e5\u8be2\u6570\u636e\u5e93\uff0c\u5b58\u5728\u7f13\u5b58\u51fb\u7a7f\u7684\u60c5\u51b5\uff0c\u5927\u91cf\u7684\u5e76\u53d1\u8bf7\u6c42\u8fdb\u6765\uff0c\u53ef\u80fd\u628a\u6570\u636e\u5e93\u51b2\n                productList = productListService.findProductsDB();\n            }\n            return productList;\n\n        } catch (Exception ex) {\n            ex.printStackTrace();\n            return null;\n        }\n    }\n\n}\n        <\/pre>\n<h3>3.3 \u5b9a\u65f6\u4efb\u52a1<\/h3>\n<pre>\n@Configuration      \/\/ \u4e3b\u8981\u7528\u4e8e\u6807\u8bb0\u914d\u7f6e\u7c7b\uff0c\u517c\u5907Component\u7684\u6548\u679c\u3002\n@EnableScheduling   \/\/ \u5f00\u542f\u5b9a\u65f6\u4efb\u52a1\npublic class SaticScheduleTask {\n    \/\/ \u6dfb\u52a0\u5b9a\u65f6\u4efb\u52a1\n    @Scheduled(cron = \"* 0\/5 * * * ?\")\n    \/\/ \u6216\u76f4\u63a5\u6307\u5b9a\u65f6\u95f4\u95f4\u9694\uff0c\u4f8b\u5982\uff1a5\u79d2\n    \/\/ @Scheduled(fixedRate=5000)\n    private void configureTasks() {\n        System.err.println(\"\u6267\u884c\u9759\u6001\u5b9a\u65f6\u4efb\u52a1\u65f6\u95f4: \" + LocalDateTime.now());\n    }\n}<\/pre>\n<h2>4\u3001\u89e3\u51b3\u5546\u54c1\u5217\u8868\u5b58\u5728\u7684\u7f13\u5b58\u51fb\u7a7f\u95ee\u9898<\/h2>\n<h3>&nbsp;4.1 \u5982\u4f55\u5f15\u8d77\u7684\u7f13\u5b58\u51fb\u7a7f\u7684\u60c5\u51b5<\/h3>\n<pre>\npublic void runCourse() {\n        while (true) {\n            \/\/ \u4ece\u6570\u636e\u5e93\u4e2d\u67e5\u8be2\u51fa\u7279\u4ef7\u5546\u54c1\n            List\n        \n          productList = this.findProductsDB();\n            \/\/ \u5220\u9664\u539f\u6765\u7684\u7279\u4ef7\u5546\u54c1\n            this.redisTemplate.delete(\"product:hot:list\");\n            \/\/ \u628a\u7279\u4ef7\u5546\u54c1\u6dfb\u52a0\u5230\u96c6\u5408\u4e2d \u9700\u8981\u65f6\u95f4\n            this.redisTemplate.opsForList().leftPushAll(\"product:hot:list\", productList);\n            try {\n                \/\/ \u6bcf\u9694\u4e00\u5206\u949f\u6267\u884c\u4e00\u904d\n                Thread.sleep(1000 * 60);\n                log.info(\"\u5b9a\u65f6\u5237\u65b0\u7279\u4ef7\u5546\u54c1....\");\n            } catch (Exception ex) {\n                ex.printStackTrace();\n            }\n        }\n    }\n        <\/pre>\n<p>\u51fa\u73b0\u539f\u56e0:<\/p>\n<ul>\n<li>\u7279\u4ef7\u5546\u54c1\u7684\u6570\u636e\u66f4\u6362\u9700\u8981\u65f6\u95f4\uff0c\u521a\u597d\u7279\u4ef7\u5546\u54c1\u8fd8\u6ca1\u6709\u653e\u5165\u5230redis\u7f13\u5b58\u4e2d\u3002<\/li>\n<li>\u67e5\u8be2\u7279\u4ef7\u5546\u54c1\u7684\u5e76\u53d1\u91cf\u975e\u5e38\u5927\uff0c\u53ef\u80fd\u7a0b\u5e8f\u8fd8\u6b63\u5728\u5199\u5165\u7279\u4ef7\u5546\u54c1\u5230\u7f13\u5b58\u4e2d\uff0c\u8fd9\u65f6\u67e5\u8be2\u7f13\u5b58\u6839\u672c\u6ca1\u6709\u6570\u636e\uff0c\u5c31\u4f1a\u76f4\u63a5\u51b2\u5165\u6570\u636e\u5e93\u4e2d\u53bb\u67e5\u8be2\u7279\u4ef7\u5546\u54c1\u3002\u53ef\u80fd\u9020\u6210\u6570\u636e\u5e93\u51b2\u57ae\u3002\u8fd9\u4e2a\u5c31\u53eb\u505a\uff1a\u7f13\u5b58\u51fb\u7a7f<\/li>\n<\/ul>\n<h3>4.2 \u89e3\u51b3\u65b9\u6848<\/h3>\n<p>\u4e3b\u4ece\u8f6e\u8be2<\/p>\n<p>\u53ef\u4ee5\u5f00\u8f9f\u4e24\u5757redis\u7684\u96c6\u5408\u7a7a\u95f4A\u548cB\u3002\u5b9a\u65f6\u5668\u5728\u66f4\u65b0\u7f13\u5b58\u7684\u65f6\u5019\uff0c<code>\u5148\u66f4\u65b0B\u7f13\u5b58<\/code>\uff0c<code>\u7136\u540e\u518d\u66f4\u65b0A\u7f13\u5b58<\/code>\u3002<\/p>\n<p>\u4e00\u5b9a\u8981\u6309\u7167\u7279\u5b9a\u987a\u5e8f\u6765\u5904\u7406\u3002<\/p>\n<pre>\npackage com.example.service;\n\nimport com.example.entity.Product;\nimport lombok.extern.slf4j.Slf4j;\nimport org.springframework.beans.factory.annotation.Autowired;\nimport org.springframework.data.redis.core.RedisTemplate;\nimport org.springframework.stereotype.Service;\n\nimport javax.annotation.PostConstruct;\nimport java.util.ArrayList;\nimport java.util.List;\nimport java.util.Random;\n\n\/**\n * @Auther: \u957f\u9888\u9e7f\n * @Date: 2021\/08\/29\/18:00\n * @Description:\n *\/\n@Service\n@Slf4j\npublic class ProductListService {\n\n    @Autowired\n    private RedisTemplate redisTemplate;\n\n    \/\/ \u6570\u636e\u70ed\u52a0\u8f7d\n    @PostConstruct\n    public void initData(){\n        log.info(\"\u542f\u52a8\u5b9a\u65f6\u52a0\u8f7d\u7279\u4ef7\u5546\u54c1\u5230redis\u7684list\u4e2d...\");\n        new Thread(() -&gt; runCourse()).start();\n    }\n\n    public void runCourse() {\n        while (true) {\n            \/\/ \u4ece\u6570\u636e\u5e93\u4e2d\u67e5\u8be2\u51fa\u7279\u4ef7\u5546\u54c1\n            List\n        \n          productList = this.findProductsDB();\n\n            \/\/ \u5220\u9664\u539f\u6765\u7684\u7279\u4ef7\u5546\u54c1\n            this.redisTemplate.delete(\"product:hot:slave:list\");\n            \/\/ \u628a\u7279\u4ef7\u5546\u54c1\u6dfb\u52a0\u5230\u96c6\u5408\u4e2d\n            this.redisTemplate.opsForList().leftPushAll(\"product:hot:slave:list\", productList);\/\/ \u5220\u9664\u539f\u6765\u7684\u7279\u4ef7\u5546\u54c1\n\n            this.redisTemplate.delete(\"product:hot:master:list\");\n            \/\/ \u628a\u7279\u4ef7\u5546\u54c1\u6dfb\u52a0\u5230\u96c6\u5408\u4e2d\n            this.redisTemplate.opsForList().leftPushAll(\"product:hot:master:list\", productList);\n\n\/\/            \/\/ \u5220\u9664\u539f\u6765\u7684\u7279\u4ef7\u5546\u54c1\n\/\/            this.redisTemplate.delete(\"product:hot:list\");\n\/\/            \/\/ \u628a\u7279\u4ef7\u5546\u54c1\u6dfb\u52a0\u5230\u96c6\u5408\u4e2d\n\/\/            this.redisTemplate.opsForList().leftPushAll(\"product:hot:list\", productList);\n            try {\n                \/\/ \u6bcf\u9694\u4e00\u5206\u949f\u6267\u884c\u4e00\u6b21\n                Thread.sleep(1000 * 60);\n                log.info(\"\u5b9a\u65f6\u5237\u65b0\u7279\u4ef7\u5546\u54c1....\");\n            } catch (Exception ex) {\n                ex.printStackTrace();\n            }\n        }\n    }\n\n    \/**\n     * \u6570\u636e\u5e93\u4e2d\u67e5\u8be2\u7279\u4ef7\u5546\u54c1\n     *\n     * @return\n     *\/\n    public List\n         \n           findProductsDB() { \/\/List\n          \n            productList = productMapper.selectListHot(); List\n           \n             productList = new ArrayList(); for (long i = 1; i \n            <pre>\npackage com.example.controller;\n\nimport com.example.entity.Product;\nimport com.example.service.ProductListService;\nimport org.springframework.beans.factory.annotation.Autowired;\nimport org.springframework.data.redis.core.RedisTemplate;\nimport org.springframework.util.CollectionUtils;\nimport org.springframework.web.bind.annotation.GetMapping;\nimport org.springframework.web.bind.annotation.RestController;\n\nimport java.util.List;\n\n\/**\n * @Auther: \u957f\u9888\u9e7f\n * @Date: 2021\/08\/29\/18:04\n * @Description:\n *\/\n@RestController\npublic class ProductListController {\n\n    @Autowired\n    private RedisTemplate redisTemplate;\n    @Autowired\n    private ProductListService productListService;\n\n    @GetMapping(\"\/findProducts\")\n    public List\n             \n               findProducts(int pageNo, int pageSize) {\n\n        \/\/ \u4ece\u90a3\u4e2a\u96c6\u5408\u53bb\u67e5\u8be2\n\n        String master_key = \"product:hot:master:list\";\n        String slave_key = \"product:hot:slave:list\";\n\n        String key = \"product:hot:list\";\n        \/\/ \u5206\u9875\u7684\u5f00\u59cb\u7ed3\u675f\u7684\u6362\u7b97\n        if (pageNo  productList = this.redisTemplate.opsForList().range(master_key, start, end);\n\n\/\/            List\n              \n                productList = this.redisTemplate.opsForList().range(key, start, end); if (CollectionUtils.isEmpty(productList)) { \/\/ todo: \u67e5\u8be2\u6570\u636e\u5e93\uff0c\u5b58\u5728\u7f13\u5b58\u51fb\u7a7f\u7684\u60c5\u51b5\uff0c\u5927\u91cf\u7684\u5e76\u53d1\u8bf7\u6c42\u8fdb\u6765\uff0c\u53ef\u80fd\u628a\u6570\u636e\u5e93\u51b2 productList = this.redisTemplate.opsForList().range(slave_key, start, end); \/\/ productList = productListService.findProductsDB(); } return productList; } catch (Exception ex) { ex.printStackTrace(); return null; } } }\n              \n             <\/pre>\n","protected":false},"excerpt":{"rendered":"<p>\u57fa\u4e8eRedis\u7684List\u5b9e\u73b0\u7279\u4ef7&#46;&#46;&#46;<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[101],"tags":[],"class_list":["post-201398","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/201398","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/comments?post=201398"}],"version-history":[{"count":0,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/201398\/revisions"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=201398"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=201398"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=201398"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}