{"id":161143,"date":"2024-11-04T03:58:24","date_gmt":"2024-11-03T19:58:24","guid":{"rendered":"https:\/\/server.hk\/cnblog\/161143\/"},"modified":"2024-11-04T03:58:25","modified_gmt":"2024-11-03T19:58:25","slug":"%e6%a9%9f%e5%88%b6-%e6%96%87%e7%ab%a0%e6%a8%99%e9%a1%8c%ef%bc%9a%e4%bd%bf%e7%94%a8-java-%e5%af%a6%e7%8f%be-redis-%e9%81%8e%e6%9c%9f%e6%a9%9f%e5%88%b6%ef%bc%88redis-java-%e9%81%8e%e6%9c%9f%ef%bc%89","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/161143\/","title":{"rendered":"\u6a5f\u5236 \u6587\u7ae0\u6a19\u984c\uff1a\u4f7f\u7528 Java \u5be6\u73fe Redis \u904e\u671f\u6a5f\u5236\uff08redis java \u904e\u671f\uff09"},"content":{"rendered":"

\u4f7f\u7528 Java \u5be6\u73fe Redis \u904e\u671f\u6a5f\u5236\uff08redis java \u904e\u671f\uff09<\/h1>\n

\u5728\u7576\u4eca\u7684\u61c9\u7528\u7a0b\u5f0f\u958b\u767c\u4e2d\uff0cRedis \u4f5c\u70ba\u4e00\u500b\u9ad8\u6548\u7684\u9375\u503c\u5b58\u5132\u7cfb\u7d71\uff0c\u5ee3\u6cdb\u61c9\u7528\u65bc\u7de9\u5b58\u3001\u6d88\u606f\u968a\u5217\u548c\u6578\u64da\u6301\u4e45\u5316\u7b49\u5834\u666f\u3002Redis \u63d0\u4f9b\u4e86\u5f37\u5927\u7684\u904e\u671f\u6a5f\u5236\uff0c\u5141\u8a31\u958b\u767c\u8005\u70ba\u9375\u8a2d\u7f6e\u904e\u671f\u6642\u9593\uff0c\u5f9e\u800c\u81ea\u52d5\u522a\u9664\u4e0d\u518d\u9700\u8981\u7684\u6578\u64da\u3002\u672c\u6587\u5c07\u63a2\u8a0e\u5982\u4f55\u5728 Java \u4e2d\u4f7f\u7528 Redis \u7684\u904e\u671f\u6a5f\u5236\uff0c\u4e26\u63d0\u4f9b\u76f8\u95dc\u7684\u4ee3\u78bc\u793a\u4f8b\u3002<\/p>\n

Redis \u904e\u671f\u6a5f\u5236\u6982\u8ff0<\/h2>\n

Redis \u7684\u904e\u671f\u6a5f\u5236\u5141\u8a31\u7528\u6236\u70ba\u6bcf\u500b\u9375\u8a2d\u7f6e\u4e00\u500b\u751f\u5b58\u6642\u9593\uff08TTL, Time To Live\uff09\u3002\u7576\u9375\u7684 TTL \u5230\u671f\u5f8c\uff0c\u8a72\u9375\u5c07\u81ea\u52d5\u88ab\u522a\u9664\u3002\u9019\u4e00\u7279\u6027\u5c0d\u65bc\u7ba1\u7406\u7de9\u5b58\u6578\u64da\u5c24\u70ba\u91cd\u8981\uff0c\u56e0\u70ba\u5b83\u53ef\u4ee5\u9632\u6b62\u904e\u671f\u6578\u64da\u4f54\u7528\u5167\u5b58\u8cc7\u6e90\u3002<\/p>\n

\u8a2d\u7f6e\u904e\u671f\u6642\u9593<\/h3>\n

\u5728 Redis \u4e2d\uff0c\u53ef\u4ee5\u4f7f\u7528 EXPIRE<\/code> \u547d\u4ee4\u4f86\u8a2d\u7f6e\u9375\u7684\u904e\u671f\u6642\u9593\u3002\u8a72\u547d\u4ee4\u7684\u8a9e\u6cd5\u5982\u4e0b\uff1a<\/p>\n

EXPIRE key seconds<\/code><\/pre>\n
\u5176\u4e2d\uff0ckey<\/code> \u662f\u8981\u8a2d\u7f6e\u904e\u671f\u7684\u9375\uff0cseconds<\/code> \u662f\u904e\u671f\u7684\u79d2\u6578\u3002\u4f8b\u5982\uff0c\u82e5\u8981\u5c07\u9375 myKey<\/code> \u8a2d\u7f6e\u70ba 60 \u79d2\u5f8c\u904e\u671f\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u547d\u4ee4\uff1a<\/p>\n
EXPIRE myKey 60<\/code><\/pre>\n
\u5728 Java \u4e2d\u4f7f\u7528 Redis<\/h2>\n
\u8981\u5728 Java \u4e2d\u4f7f\u7528 Redis\uff0c\u901a\u5e38\u6703\u4f7f\u7528 Jedis \u9019\u500b\u5eab\u3002Jedis \u662f\u4e00\u500b\u7c21\u55ae\u6613\u7528\u7684 Redis \u5ba2\u6236\u7aef\uff0c\u652f\u6301\u6240\u6709 Redis \u7684\u529f\u80fd\uff0c\u5305\u62ec\u904e\u671f\u6a5f\u5236\u3002<\/p>\n
\u5b89\u88dd Jedis<\/h3>\n
\u9996\u5148\uff0c\u60a8\u9700\u8981\u5728\u60a8\u7684 Java \u9805\u76ee\u4e2d\u6dfb\u52a0 Jedis \u7684\u4f9d\u8cf4\u3002\u82e5\u4f7f\u7528 Maven\uff0c\u53ef\u4ee5\u5728 pom.xml<\/code> \u4e2d\u6dfb\u52a0\u4ee5\u4e0b\u4f9d\u8cf4\uff1a<\/p>\n
<dependency>\n    <groupId>redis.clients<\/groupId>\n    <artifactId>jedis<\/artifactId>\n    <version>4.0.1<\/version>\n<\/dependency><\/code><\/pre>\n
\u793a\u4f8b\u4ee3\u78bc<\/h3>\n
\u4ee5\u4e0b\u662f\u4e00\u500b\u7c21\u55ae\u7684\u793a\u4f8b\uff0c\u5c55\u793a\u5982\u4f55\u5728 Java \u4e2d\u4f7f\u7528 Jedis \u8a2d\u7f6e Redis \u9375\u7684\u904e\u671f\u6642\u9593\uff1a<\/p>\n
import redis.clients.jedis.Jedis;\n\npublic class RedisExpireExample {\n    public static void main(String[] args) {\n        \/\/ \u5275\u5efa Jedis \u9023\u63a5\n        Jedis jedis = new Jedis(\"localhost\", 6379);\n        \n        \/\/ \u8a2d\u7f6e\u9375\u503c\n        jedis.set(\"myKey\", \"Hello, Redis!\");\n        \n        \/\/ \u8a2d\u7f6e\u904e\u671f\u6642\u9593\u70ba 60 \u79d2\n        jedis.expire(\"myKey\", 60);\n        \n        \/\/ \u78ba\u8a8d\u904e\u671f\u6642\u9593\n        System.out.println(\"myKey \u7684\u5269\u9918\u904e\u671f\u6642\u9593: \" + jedis.ttl(\"myKey\") + \" \u79d2\");\n        \n        \/\/ \u7b49\u5f85 65 \u79d2\u5f8c\u6aa2\u67e5\u9375\u662f\u5426\u5b58\u5728\n        try {\n            Thread.sleep(65000);\n        } catch (InterruptedException e) {\n            e.printStackTrace();\n        }\n        \n        \/\/ \u6aa2\u67e5\u9375\u662f\u5426\u5b58\u5728\n        if (jedis.exists(\"myKey\")) {\n            System.out.println(\"myKey \u4ecd\u7136\u5b58\u5728\");\n        } else {\n            System.out.println(\"myKey \u5df2\u7d93\u904e\u671f\");\n        }\n        \n        \/\/ \u95dc\u9589\u9023\u63a5\n        jedis.close();\n    }\n}<\/code><\/pre>\n
\u5728\u9019\u500b\u793a\u4f8b\u4e2d\uff0c\u6211\u5011\u9996\u5148\u5275\u5efa\u4e86\u4e00\u500b Jedis \u9023\u63a5\uff0c\u7136\u5f8c\u8a2d\u7f6e\u4e86\u4e00\u500b\u9375 myKey<\/code> \u7684\u503c\uff0c\u4e26\u70ba\u5176\u8a2d\u7f6e\u4e86 60 \u79d2\u7684\u904e\u671f\u6642\u9593\u3002\u63a5\u8457\uff0c\u6211\u5011\u4f7f\u7528 ttl<\/code> \u65b9\u6cd5\u4f86\u6aa2\u67e5\u5269\u9918\u7684\u904e\u671f\u6642\u9593\uff0c\u4e26\u5728\u7b49\u5f85 65 \u79d2\u5f8c\u6aa2\u67e5\u8a72\u9375\u662f\u5426\u4ecd\u7136\u5b58\u5728\u3002<\/p>\n
\u7d50\u8ad6<\/h2>\n
Redis \u7684\u904e\u671f\u6a5f\u5236\u70ba\u958b\u767c\u8005\u63d0\u4f9b\u4e86\u4e00\u7a2e\u6709\u6548\u7684\u65b9\u5f0f\u4f86\u7ba1\u7406\u6578\u64da\u7684\u751f\u547d\u9031\u671f\u3002\u5728 Java \u4e2d\u4f7f\u7528 Jedis \u5eab\u53ef\u4ee5\u8f15\u9b06\u5730\u8a2d\u7f6e\u548c\u7ba1\u7406\u9375\u7684\u904e\u671f\u6642\u9593\u3002\u9019\u4e0d\u50c5\u6709\u52a9\u65bc\u7bc0\u7701\u5167\u5b58\u8cc7\u6e90\uff0c\u9084\u80fd\u78ba\u4fdd\u61c9\u7528\u7a0b\u5f0f\u4e2d\u7684\u6578\u64da\u59cb\u7d42\u4fdd\u6301\u6700\u65b0\u72c0\u614b\u3002<\/p>\n
\u5982\u9700\u4e86\u89e3\u66f4\u591a\u6709\u95dc VPS<\/a> \u548c \u9999\u6e2f\u4f3a\u670d\u5668<\/a> \u7684\u8cc7\u8a0a\uff0c\u8acb\u8a2a\u554f\u6211\u5011\u7684\u7db2\u7ad9\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"
\u63a2\u7d22\u5982\u4f55\u4f7f\u7528 Java \u5be6\u73fe Redis \u7684\u904e\u671f\u6a5f\u5236\uff0c\u63d0\u5347\u6578\u64da\u7ba1\u7406\u6548\u7387\uff0c\u78ba\u4fdd\u8cc7\u6e90\u81ea\u52d5\u91cb\u653e\u8207\u66f4\u65b0\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-161143","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/161143","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=161143"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/161143\/revisions"}],"predecessor-version":[{"id":161144,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/161143\/revisions\/161144"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=161143"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=161143"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=161143"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}