{"id":156311,"date":"2024-11-02T20:13:23","date_gmt":"2024-11-02T12:13:23","guid":{"rendered":"https:\/\/server.hk\/cnblog\/156311\/"},"modified":"2024-11-02T20:13:25","modified_gmt":"2024-11-02T12:13:25","slug":"%e5%88%86%e5%b8%83%e5%bc%8f%e9%8e%96%e4%b8%ad-%e5%9f%ba%e6%96%bc-redis-%e7%9a%84%e5%af%a6%e7%8f%be%e9%9c%80%e9%81%bf%e5%9d%91-jedis-%e7%af%87","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/156311\/","title":{"rendered":"\u5206\u5e03\u5f0f\u9396\u4e2d-\u57fa\u65bc Redis \u7684\u5be6\u73fe\u9700\u907f\u5751 – Jedis \u7bc7"},"content":{"rendered":"

\u5206\u5e03\u5f0f\u9396\u4e2d-\u57fa\u65bc Redis \u7684\u5be6\u73fe\u9700\u907f\u5751 – Jedis \u7bc7<\/h1>\n

\u5728\u7576\u4eca\u7684\u5206\u5e03\u5f0f\u7cfb\u7d71\u4e2d\uff0c\u5206\u5e03\u5f0f\u9396\u662f\u4e00\u500b\u91cd\u8981\u7684\u6982\u5ff5\uff0c\u5c24\u5176\u662f\u5728\u9700\u8981\u4fdd\u8b49\u6578\u64da\u4e00\u81f4\u6027\u548c\u9632\u6b62\u7af6\u722d\u689d\u4ef6\u7684\u5834\u666f\u4e2d\u3002Redis \u4f5c\u70ba\u4e00\u500b\u9ad8\u6548\u7684\u9375\u503c\u6578\u64da\u5eab\uff0c\u5e38\u88ab\u7528\u4f86\u5be6\u73fe\u5206\u5e03\u5f0f\u9396\u3002\u672c\u6587\u5c07\u63a2\u8a0e\u57fa\u65bc Redis \u7684\u5206\u5e03\u5f0f\u9396\u5be6\u73fe\uff0c\u7279\u5225\u662f\u4f7f\u7528 Jedis \u5ba2\u6236\u7aef\u6642\u9700\u8981\u6ce8\u610f\u7684\u5e7e\u500b\u5751\u3002<\/p>\n

\u4ec0\u9ebc\u662f\u5206\u5e03\u5f0f\u9396\uff1f<\/h2>\n

\u5206\u5e03\u5f0f\u9396\u662f\u4e00\u7a2e\u7528\u65bc\u63a7\u5236\u591a\u500b\u9032\u7a0b\u6216\u670d\u52d9\u4e4b\u9593\u5c0d\u5171\u4eab\u8cc7\u6e90\u7684\u8a2a\u554f\u7684\u6a5f\u5236\u3002\u5b83\u78ba\u4fdd\u5728\u540c\u4e00\u6642\u9593\u5167\uff0c\u53ea\u6709\u4e00\u500b\u9032\u7a0b\u53ef\u4ee5\u8a2a\u554f\u7279\u5b9a\u7684\u8cc7\u6e90\uff0c\u5f9e\u800c\u907f\u514d\u6578\u64da\u4e0d\u4e00\u81f4\u6216\u7af6\u722d\u689d\u4ef6\u7684\u767c\u751f\u3002<\/p>\n

\u70ba\u4ec0\u9ebc\u9078\u64c7 Redis\uff1f<\/h2>\n

Redis \u4ee5\u5176\u9ad8\u6027\u80fd\u548c\u7c21\u55ae\u7684\u6578\u64da\u7d50\u69cb\u800c\u805e\u540d\uff0c\u9069\u5408\u7528\u65bc\u5be6\u73fe\u5206\u5e03\u5f0f\u9396\u3002\u5176\u539f\u5b50\u64cd\u4f5c\u548c\u904e\u671f\u6642\u9593\u8a2d\u7f6e\u529f\u80fd\u4f7f\u5f97 Redis \u6210\u70ba\u4e00\u500b\u7406\u60f3\u7684\u9078\u64c7\u3002\u4f7f\u7528 Redis \u5be6\u73fe\u5206\u5e03\u5f0f\u9396\u7684\u57fa\u672c\u601d\u8def\u662f\u5229\u7528 SETNX \u547d\u4ee4\u4f86\u8a2d\u7f6e\u9396\uff0c\u4e26\u4f7f\u7528 EXPIRE \u547d\u4ee4\u4f86\u8a2d\u7f6e\u9396\u7684\u904e\u671f\u6642\u9593\u3002<\/p>\n

\u4f7f\u7528 Jedis \u5be6\u73fe\u5206\u5e03\u5f0f\u9396<\/h2>\n

Jedis \u662f\u4e00\u500b\u6d41\u884c\u7684 Java \u5ba2\u6236\u7aef\uff0c\u7528\u65bc\u8207 Redis \u9032\u884c\u4ea4\u4e92\u3002\u4ee5\u4e0b\u662f\u4e00\u500b\u7c21\u55ae\u7684\u793a\u4f8b\uff0c\u5c55\u793a\u5982\u4f55\u4f7f\u7528 Jedis \u5be6\u73fe\u5206\u5e03\u5f0f\u9396\uff1a<\/p>\n

import redis.clients.jedis.Jedis;\n\npublic class RedisLock {\n    private Jedis jedis;\n    private static final String LOCK_KEY = \"lock_key\";\n    private static final int EXPIRE_TIME = 300; \/\/ \u9396\u7684\u904e\u671f\u6642\u9593\uff0c\u55ae\u4f4d\u70ba\u79d2\n\n    public RedisLock() {\n        this.jedis = new Jedis(\"localhost\");\n    }\n\n    public boolean acquireLock() {\n        long result = jedis.setnx(LOCK_KEY, \"locked\");\n        if (result == 1) {\n            jedis.expire(LOCK_KEY, EXPIRE_TIME);\n            return true;\n        }\n        return false;\n    }\n\n    public void releaseLock() {\n        jedis.del(LOCK_KEY);\n    }\n}\n<\/code><\/pre>\n
\u9700\u8981\u907f\u958b\u7684\u5751<\/h2>\n
1. \u9396\u7684\u904e\u671f\u6642\u9593\u8a2d\u7f6e\u4e0d\u7576<\/h3>\n
\u5728\u4f7f\u7528 Redis \u5be6\u73fe\u5206\u5e03\u5f0f\u9396\u6642\uff0c\u904e\u671f\u6642\u9593\u7684\u8a2d\u7f6e\u81f3\u95dc\u91cd\u8981\u3002\u5982\u679c\u904e\u671f\u6642\u9593\u904e\u77ed\uff0c\u53ef\u80fd\u6703\u5c0e\u81f4\u9396\u5728\u672a\u5b8c\u6210\u64cd\u4f5c\u6642\u5c31\u88ab\u91cb\u653e\uff0c\u5f9e\u800c\u5f15\u767c\u6578\u64da\u4e0d\u4e00\u81f4\u7684\u554f\u984c\uff1b\u5982\u679c\u904e\u671f\u6642\u9593\u904e\u9577\uff0c\u5247\u53ef\u80fd\u5c0e\u81f4\u5176\u4ed6\u9032\u7a0b\u9577\u6642\u9593\u7121\u6cd5\u7372\u53d6\u9396\u3002\u56e0\u6b64\uff0c\u6839\u64da\u5177\u9ad4\u696d\u52d9\u9700\u6c42\u5408\u7406\u8a2d\u7f6e\u904e\u671f\u6642\u9593\u662f\u975e\u5e38\u91cd\u8981\u7684\u3002<\/p>\n
2. \u9396\u7684\u91cd\u5165\u6027<\/h3>\n
Redis \u7684\u9396\u9ed8\u8a8d\u662f\u975e\u91cd\u5165\u7684\uff0c\u9019\u610f\u5473\u8457\u540c\u4e00\u500b\u9032\u7a0b\u5728\u7372\u53d6\u9396\u5f8c\uff0c\u5982\u679c\u518d\u6b21\u8acb\u6c42\u9396\uff0c\u5c07\u6703\u5931\u6557\u3002\u9019\u5728\u67d0\u4e9b\u60c5\u6cc1\u4e0b\u53ef\u80fd\u6703\u5c0e\u81f4\u6b7b\u9396\u3002\u56e0\u6b64\uff0c\u8003\u616e\u4f7f\u7528\u91cd\u5165\u9396\u7684\u8a2d\u8a08\uff0c\u6216\u8005\u5728\u7372\u53d6\u9396\u6642\u9032\u884c\u9069\u7576\u7684\u6aa2\u67e5\u3002<\/p>\n
3. \u9396\u7684\u91cb\u653e<\/h3>\n
\u5728\u91cb\u653e\u9396\u6642\uff0c\u5fc5\u9808\u78ba\u4fdd\u53ea\u6709\u6301\u6709\u9396\u7684\u9032\u7a0b\u624d\u80fd\u91cb\u653e\u9396\u3002\u9019\u53ef\u4ee5\u901a\u904e\u5728\u9396\u4e2d\u5b58\u5132\u9032\u7a0b\u7684\u552f\u4e00\u6a19\u8b58\u4f86\u5be6\u73fe\u3002\u91cb\u653e\u9396\u7684\u6642\u5019\uff0c\u5148\u6aa2\u67e5\u7576\u524d\u9396\u7684\u64c1\u6709\u8005\u662f\u5426\u662f\u7576\u524d\u9032\u7a0b\uff0c\u53ea\u6709\u5728\u78ba\u8a8d\u5f8c\u624d\u9032\u884c\u91cb\u653e\u3002<\/p>\n
public void releaseLock(String ownerId) {\n    String currentOwner = jedis.get(LOCK_KEY);\n    if (currentOwner != null && currentOwner.equals(ownerId)) {\n        jedis.del(LOCK_KEY);\n    }\n}\n<\/code><\/pre>\n
\u7e3d\u7d50<\/h2>\n
\u57fa\u65bc Redis \u7684\u5206\u5e03\u5f0f\u9396\u5be6\u73fe\u662f\u4e00\u500b\u5f37\u5927\u7684\u5de5\u5177\uff0c\u4f46\u5728\u4f7f\u7528 Jedis \u5ba2\u6236\u7aef\u6642\u9700\u8981\u6ce8\u610f\u4e00\u4e9b\u5e38\u898b\u7684\u5751\u3002\u5408\u7406\u8a2d\u7f6e\u9396\u7684\u904e\u671f\u6642\u9593\u3001\u8003\u616e\u9396\u7684\u91cd\u5165\u6027\u4ee5\u53ca\u78ba\u4fdd\u9396\u7684\u6b63\u78ba\u91cb\u653e\u90fd\u662f\u6210\u529f\u5be6\u73fe\u5206\u5e03\u5f0f\u9396\u7684\u95dc\u9375\u3002\u901a\u904e\u9075\u5faa\u9019\u4e9b\u6700\u4f73\u5be6\u8e10\uff0c\u53ef\u4ee5\u6709\u6548\u5730\u5229\u7528 Redis \u4f86\u7ba1\u7406\u5206\u5e03\u5f0f\u7cfb\u7d71\u4e2d\u7684\u8cc7\u6e90\u3002<\/p>\n
\u5982\u679c\u60a8\u6b63\u5728\u5c0b\u627e\u9ad8\u6548\u7684 VPS<\/a> \u89e3\u6c7a\u65b9\u6848\uff0cServer.HK \u63d0\u4f9b\u591a\u7a2e\u9078\u64c7\uff0c\u5e6b\u52a9\u60a8\u8f15\u9b06\u642d\u5efa\u548c\u7ba1\u7406\u60a8\u7684\u61c9\u7528\u7a0b\u5e8f\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"
\u63a2\u7d22\u57fa\u65bc Redis \u7684\u5206\u5e03\u5f0f\u9396\u5be6\u73fe\uff0c\u4e86\u89e3\u4f7f\u7528 Jedis \u6642\u9700\u907f\u514d\u7684\u5e38\u898b\u9677\u9631\u8207\u6700\u4f73\u5be6\u8e10\u3002<\/p>\n","protected":false},"author":0,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[101],"tags":[],"class_list":["post-156311","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/156311","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"}],"replies":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/comments?post=156311"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/156311\/revisions"}],"predecessor-version":[{"id":156312,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/156311\/revisions\/156312"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=156311"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=156311"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=156311"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}