{"id":202042,"date":"2025-05-10T11:45:27","date_gmt":"2025-05-10T03:45:27","guid":{"rendered":"https:\/\/server.hk\/cnblog\/202042\/"},"modified":"2025-05-10T11:45:27","modified_gmt":"2025-05-10T03:45:27","slug":"%e5%88%a9%e7%94%a8java%e5%92%8credis%e5%ae%9e%e7%8e%b0%e6%95%b0%e6%8d%ae%e8%bf%87%e6%9c%9f%e7%ad%96%e7%95%a5%ef%bc%9a%e5%a6%82%e4%bd%95%e8%87%aa%e5%8a%a8%e5%88%a0%e9%99%a4%e8%bf%87%e6%9c%9f%e6%95%b0","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/202042\/","title":{"rendered":"\u5229\u7528Java\u548cRedis\u5b9e\u73b0\u6570\u636e\u8fc7\u671f\u7b56\u7565\uff1a\u5982\u4f55\u81ea\u52a8\u5220\u9664\u8fc7\u671f\u6570\u636e"},"content":{"rendered":"<p><b><\/b> <\/p>\n<h1>\u5229\u7528Java\u548cRedis\u5b9e\u73b0\u6570\u636e\u8fc7\u671f\u7b56\u7565\uff1a\u5982\u4f55\u81ea\u52a8\u5220\u9664\u8fc7\u671f\u6570\u636e<\/h1>\n<p><span style=\"font-size: 15px\">\u6709\u5fd7\u8005\uff0c\u4e8b\u7adf\u6210\uff01\u5982\u679c\u4f60\u5728\u5b66\u4e60<span style=\"color: #FF6600;, Helvetica, Arial, sans-serif;font-size: 14px;background-color: #FFFFFF\">\u6570\u636e\u5e93<\/span>\uff0c\u90a3\u4e48\u672c\u6587<span style=\"color: #FF6600;, Helvetica, Arial, sans-serif;font-size: 14px;background-color: #FFFFFF\">\u300a\u5229\u7528Java\u548cRedis\u5b9e\u73b0\u6570\u636e\u8fc7\u671f\u7b56\u7565\uff1a\u5982\u4f55\u81ea\u52a8\u5220\u9664\u8fc7\u671f\u6570\u636e\u300b<\/span>\uff0c\u5c31\u5f88\u9002\u5408\u4f60\uff01\u6587\u7ae0\u8bb2\u89e3\u7684\u77e5\u8bc6\u70b9\u4e3b\u8981\u5305\u62ec<span style=\"color: #FF6600;, Helvetica, Arial, sans-serif;font-size: 14px;background-color: #FFFFFF\"><\/span>\uff0c\u82e5\u662f\u4f60\u5bf9\u672c\u6587\u611f\u5174\u8da3\uff0c\u6216\u8005\u662f\u60f3\u641e\u61c2\u5176\u4e2d\u67d0\u4e2a\u77e5\u8bc6\u70b9\uff0c\u5c31\u8bf7\u4f60\u7ee7\u7eed\u5f80\u4e0b\u770b\u5427~<\/span><\/p>\n<p>\u5229\u7528Java\u548cRedis\u5b9e\u73b0\u6570\u636e\u8fc7\u671f\u7b56\u7565\uff1a\u5982\u4f55\u81ea\u52a8\u5220\u9664\u8fc7\u671f\u6570\u636e<\/p>\n<p>\u5f15\u8a00\uff1a<br \/>\u5728\u73b0\u4ee3\u5e94\u7528\u7a0b\u5e8f\u4e2d\uff0c\u6570\u636e\u5b58\u50a8\u548c\u7f13\u5b58\u662f\u81f3\u5173\u91cd\u8981\u7684\u3002\u7b80\u5355\u7684key-value\u5b58\u50a8\u7cfb\u7edf\uff0c\u5982Redis\uff0c\u88ab\u5e7f\u6cdb\u5e94\u7528\u4e8e\u8bb8\u591a\u5e94\u7528\u7a0b\u5e8f\u4e2d\u3002\u7136\u800c\uff0c\u5b58\u50a8\u6c38\u4e45\u5316\u7684\u6570\u636e\u53ef\u80fd\u4f1a\u5bfc\u81f4\u5b58\u50a8\u7a7a\u95f4\u7684\u6d6a\u8d39\uff0c\u4ee5\u53ca\u4e0d\u518d\u4f7f\u7528\u7684\u6570\u636e\u53ef\u80fd\u5360\u636e\u8fc7\u591a\u7684\u5185\u5b58\u6216\u78c1\u76d8\u7a7a\u95f4\u3002\u4e3a\u4e86\u89e3\u51b3\u8fd9\u4e2a\u95ee\u9898\uff0c\u6211\u4eec\u53ef\u4ee5\u4f7f\u7528Redis\u7684\u8fc7\u671f\u7b56\u7565\uff0cRedis\u4f1a\u81ea\u52a8\u5c06\u8fc7\u671f\u7684\u6570\u636e\u5220\u9664\u3002\u672c\u6587\u5c06\u4ecb\u7ecd\u5982\u4f55\u5728Java\u4e2d\u7ed3\u5408Redis\u5b9e\u73b0\u6570\u636e\u8fc7\u671f\u7b56\u7565\u3002<\/p>\n<p>\u4e00\u3001Redis\u7684\u8fc7\u671f\u7b56\u7565<br \/>Redis\u901a\u8fc7\u7ed9\u952e\u8bbe\u7f6e\u8fc7\u671f\u65f6\u95f4\u6765\u5b9e\u73b0\u8fc7\u671f\u7b56\u7565\u3002\u4e00\u65e6\u952e\u7684\u8fc7\u671f\u65f6\u95f4\u5230\u4e86\uff0cRedis\u5c06\u81ea\u52a8\u5220\u9664\u8be5\u952e\u53ca\u5176\u5bf9\u5e94\u7684\u503c\u3002\u8fc7\u671f\u65f6\u95f4\u53ef\u4ee5\u901a\u8fc7\u4f7f\u7528<code>EXPIRE<\/code>\u547d\u4ee4\u6216<code>expireat<\/code>\u547d\u4ee4\u6765\u8bbe\u7f6e\u3002<code>EXPIRE<\/code>\u547d\u4ee4\u9700\u8981\u6307\u5b9a\u8fc7\u671f\u7684\u65f6\u95f4\u957f\u5ea6\uff08\u4ee5\u79d2\u4e3a\u5355\u4f4d\uff09\uff0c\u800c<code>expireat<\/code>\u547d\u4ee4\u63a5\u6536\u4e00\u4e2a\u65f6\u95f4\u6233\u4f5c\u4e3a\u53c2\u6570\u6765\u8bbe\u7f6e\u8fc7\u671f\u65f6\u95f4\u3002<\/p>\n<p>\u4e8c\u3001\u4f7f\u7528Java\u64cd\u4f5cRedis<br \/>Java\u63d0\u4f9b\u4e86\u591a\u4e2aRedis\u5ba2\u6237\u7aef\u5e93\uff0c\u5982Jedis\u3001Lettuce\u7b49\u3002\u5728\u672c\u6587\u4e2d\uff0c\u6211\u4eec\u5c06\u4f7f\u7528Jedis\u4f5c\u4e3aRedis\u5ba2\u6237\u7aef\u5e93\uff0c\u901a\u8fc7maven\u5f15\u5165\u4ee5\u4e0b\u4f9d\u8d56\uff1a<\/p>\n<pre>&lt;dependencies&gt;\n    &lt;dependency&gt;\n        &lt;groupId&gt;redis.clients&lt;\/groupId&gt;\n        &lt;artifactId&gt;jedis&lt;\/artifactId&gt;\n        &lt;version&gt;3.6.1&lt;\/version&gt;\n    &lt;\/dependency&gt;\n&lt;\/dependencies&gt;<\/pre>\n<p>\u4e09\u3001Java\u5b9e\u73b0\u81ea\u52a8\u5220\u9664\u8fc7\u671f\u6570\u636e<br \/>\u6211\u4eec\u53ef\u4ee5\u7f16\u5199\u4e00\u4e2aJava\u7a0b\u5e8f\u6765\u81ea\u52a8\u5220\u9664\u8fc7\u671f\u6570\u636e\u3002\u9996\u5148\uff0c\u6211\u4eec\u9700\u8981\u521b\u5efa\u4e00\u4e2aRedis\u8fde\u63a5\u5b9e\u4f8b\uff0c\u7136\u540e\u521b\u5efa\u4e00\u4e2a\u7ebf\u7a0b\u6765\u5b9a\u671f\u68c0\u67e5\u5e76\u5220\u9664\u8fc7\u671f\u6570\u636e\u3002\u4ee5\u4e0b\u662f\u793a\u4f8b\u4ee3\u7801\uff1a<\/p>\n<pre>import redis.clients.jedis.Jedis;\n\npublic class ExpiredDataDeletion {\n\n    public static void main(String[] args) {\n        \/\/ \u521b\u5efaRedis\u8fde\u63a5\n        Jedis jedis = new Jedis(\"localhost\");\n\n        \/\/ \u521b\u5efa\u4e00\u4e2a\u7ebf\u7a0b\u6765\u5b9a\u671f\u68c0\u67e5\u5e76\u5220\u9664\u8fc7\u671f\u6570\u636e\n        Thread expirationThread = new Thread(() -&gt; {\n            while (true) {\n                try {\n                    \/\/ \u968f\u673a\u9009\u62e9\u4e00\u4e2a\u952e\n                    String randomKey = jedis.randomKey();\n                    if (randomKey != null) {\n                        \/\/ \u68c0\u67e5\u952e\u662f\u5426\u8fc7\u671f\n                        if (jedis.ttl(randomKey) == -2) {\n                            \/\/ \u952e\u5df2\u8fc7\u671f\uff0c\u5220\u9664\u952e\n                            jedis.del(randomKey);\n                            System.out.println(\"Deleted expired key: \" + randomKey);\n                        }\n                    }\n\n                    \/\/ \u6bcf\u9694\u4e00\u5b9a\u65f6\u95f4\u68c0\u67e5\u4e00\u6b21\n                    Thread.sleep(5000);\n                } catch (InterruptedException e) {\n                    e.printStackTrace();\n                }\n            }\n        });\n\n        \/\/ \u542f\u52a8\u7ebf\u7a0b\n        expirationThread.start();\n    }\n}<\/pre>\n<p>\u4e0a\u9762\u7684\u4ee3\u7801\u4e2d\uff0c\u9996\u5148\u521b\u5efa\u4e86\u4e00\u4e2aJedis\u5b9e\u4f8b\u6765\u8fde\u63a5\u672c\u5730\u7684Redis\u670d\u52a1\u5668\u3002\u7136\u540e\uff0c\u521b\u5efa\u4e86\u4e00\u4e2a\u7ebf\u7a0b\uff0c\u8be5\u7ebf\u7a0b\u4e0d\u65ad\u968f\u673a\u9009\u62e9\u4e00\u4e2a\u952e\uff0c\u5e76\u68c0\u67e5\u8be5\u952e\u662f\u5426\u8fc7\u671f\u3002\u5982\u679c\u952e\u5df2\u8fc7\u671f\uff0c\u5219\u5220\u9664\u8be5\u952e\u3002<\/p>\n<p>\u9700\u8981\u6ce8\u610f\u7684\u662f\uff0c\u4e3a\u4e86\u5b9e\u73b0\u81ea\u52a8\u5220\u9664\u8fc7\u671f\u6570\u636e\uff0c\u6211\u4eec\u9700\u8981\u5b9a\u671f\u68c0\u67e5\u952e\u7684\u8fc7\u671f\u65f6\u95f4\u3002\u5728\u793a\u4f8b\u4ee3\u7801\u4e2d\uff0c\u6211\u4eec\u8bbe\u7f6e\u7ebf\u7a0b\u7761\u7720\u65f6\u95f4\u4e3a5000\u6beb\u79d2\uff08\u53735\u79d2\uff09\uff0c\u60a8\u53ef\u4ee5\u6839\u636e\u5b9e\u9645\u60c5\u51b5\u8fdb\u884c\u8c03\u6574\u3002<\/p>\n<p>\u7ed3\u8bba\uff1a<br \/>\u901a\u8fc7\u7ed3\u5408Java\u548cRedis\uff0c\u6211\u4eec\u53ef\u4ee5\u8f7b\u677e\u5b9e\u73b0\u81ea\u52a8\u5220\u9664\u8fc7\u671f\u6570\u636e\u7684\u529f\u80fd\u3002\u901a\u8fc7\u4f7f\u7528Redis\u7684\u8fc7\u671f\u7b56\u7565\uff0c\u6211\u4eec\u53ef\u4ee5\u5927\u5927\u51cf\u5c11\u4e0d\u518d\u88ab\u8bbf\u95ee\u7684\u6570\u636e\u6240\u5360\u636e\u7684\u5185\u5b58\u6216\u78c1\u76d8\u7a7a\u95f4\u3002\u8fd9\u4e0d\u4ec5\u6709\u52a9\u4e8e\u63d0\u9ad8\u5e94\u7528\u7a0b\u5e8f\u7684\u6027\u80fd\uff0c\u8fd8\u53ef\u4ee5\u8282\u7701\u5b58\u50a8\u7a7a\u95f4\u3002\u5e0c\u671b\u672c\u6587\u5bf9\u60a8\u4e86\u89e3\u5982\u4f55\u5229\u7528Java\u548cRedis\u5b9e\u73b0\u6570\u636e\u8fc7\u671f\u7b56\u7565\u6709\u6240\u5e2e\u52a9\u3002<\/p>\n<dl>\n<dt>\n <\/dt>\n<dd>\n   \u5982\u4f55\u4f7f\u7528Redis\u548cPython\u5b9e\u73b0\u5206\u5e03\u5f0f\u6570\u636e\u5e93\u529f\u80fd\n <\/dd>\n<\/dl>\n<dl>\n<dt>\n <\/dt>\n<dd>\n   \u5982\u4f55\u5229\u7528Redis\u548cC#\u5b9e\u73b0\u5206\u5e03\u5f0f\u6570\u636e\u5206\u7247\u529f\u80fd\n <\/dd>\n<\/dl>\n","protected":false},"excerpt":{"rendered":"<p>\u5229\u7528Java\u548cRedis\u5b9e\u73b0\u6570\u636e&#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-202042","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/202042","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=202042"}],"version-history":[{"count":0,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/202042\/revisions"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=202042"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=202042"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=202042"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}