{"id":162201,"date":"2024-11-04T12:58:29","date_gmt":"2024-11-04T04:58:29","guid":{"rendered":"https:\/\/server.hk\/cnblog\/162201\/"},"modified":"2024-11-04T12:58:29","modified_gmt":"2024-11-04T04:58:29","slug":"%e6%aa%a2%e6%9f%a5-java-%e4%bd%bf%e7%94%a8-redis-%e9%80%b2%e8%a1%8c%e9%81%8e%e6%9c%9f%e6%aa%a2%e6%9f%a5%ef%bc%88redis-java-%e9%81%8e%e6%9c%9f%ef%bc%89","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/162201\/","title":{"rendered":"\u6aa2\u67e5 Java \u4f7f\u7528 Redis \u9032\u884c\u904e\u671f\u6aa2\u67e5\uff08redis java \u904e\u671f\uff09"},"content":{"rendered":"

\u6aa2\u67e5 Java \u4f7f\u7528 Redis \u9032\u884c\u904e\u671f\u6aa2\u67e5\uff08redis java \u904e\u671f\uff09<\/h1>\n

\u5728\u73fe\u4ee3\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\u6578\u64da\u7de9\u5b58\u3001\u6d88\u606f\u968a\u5217\u548c\u6703\u8a71\u7ba1\u7406\u7b49\u5834\u666f\u3002\u7279\u5225\u662f\u5728 Java \u958b\u767c\u4e2d\uff0cRedis \u7684\u4f7f\u7528\u8d8a\u4f86\u8d8a\u666e\u904d\uff0c\u5c24\u5176\u662f\u5728\u9700\u8981\u7ba1\u7406\u904e\u671f\u6578\u64da\u7684\u60c5\u6cc1\u4e0b\u3002\u672c\u6587\u5c07\u63a2\u8a0e\u5982\u4f55\u5728 Java \u4e2d\u4f7f\u7528 Redis \u9032\u884c\u904e\u671f\u6aa2\u67e5\uff0c\u4e26\u63d0\u4f9b\u76f8\u95dc\u7684\u793a\u4f8b\u4ee3\u78bc\u3002<\/p>\n

Redis \u7684\u904e\u671f\u6a5f\u5236<\/h2>\n

Redis \u63d0\u4f9b\u4e86\u7c21\u55ae\u800c\u6709\u6548\u7684\u904e\u671f\u6a5f\u5236\uff0c\u5141\u8a31\u958b\u767c\u8005\u70ba\u6bcf\u500b\u9375\u8a2d\u7f6e\u904e\u671f\u6642\u9593\u3002\u7576\u4e00\u500b\u9375\u7684\u904e\u671f\u6642\u9593\u5230\u9054\u6642\uff0cRedis \u6703\u81ea\u52d5\u5c07\u5176\u522a\u9664\u3002\u9019\u4e00\u7279\u6027\u5c0d\u65bc\u9700\u8981\u5b9a\u671f\u6e05\u7406\u904e\u671f\u6578\u64da\u7684\u61c9\u7528\u7a0b\u5f0f\u4f86\u8aaa\u975e\u5e38\u91cd\u8981\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\u4ee5\u4e0b\u662f\u8a2d\u7f6e\u904e\u671f\u6642\u9593\u7684\u57fa\u672c\u8a9e\u6cd5\uff1a<\/p>\n

EXPIRE key seconds<\/code><\/pre>\n
\u4f8b\u5982\uff0c\u82e5\u8981\u5c07\u9375 session:12345<\/code> \u8a2d\u7f6e\u70ba 60 \u79d2\u5f8c\u904e\u671f\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u547d\u4ee4\uff1a<\/p>\n
EXPIRE session:12345 60<\/code><\/pre>\n
\u5728 Java \u4e2d\u4f7f\u7528 Redis<\/h2>\n
\u5728 Java \u4e2d\u4f7f\u7528 Redis\uff0c\u901a\u5e38\u6703\u4f7f\u7528 Jedis \u6216 Lettuce \u7b49\u5ba2\u6236\u7aef\u5eab\u3002\u9019\u88e1\u6211\u5011\u5c07\u4ee5 Jedis \u70ba\u4f8b\uff0c\u4ecb\u7d39\u5982\u4f55\u5728 Java \u4e2d\u9032\u884c\u904e\u671f\u6aa2\u67e5\u3002<\/p>\n
\u5f15\u5165 Jedis \u4f9d\u8cf4<\/h3>\n
\u9996\u5148\uff0c\u60a8\u9700\u8981\u5728\u60a8\u7684 Maven \u9805\u76ee\u4e2d\u5f15\u5165 Jedis \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
\u9023\u63a5 Redis \u4e26\u8a2d\u7f6e\u904e\u671f\u6642\u9593<\/h3>\n
\u4ee5\u4e0b\u662f\u9023\u63a5 Redis \u4e26\u8a2d\u7f6e\u904e\u671f\u6642\u9593\u7684\u793a\u4f8b\u4ee3\u78bc\uff1a<\/p>\n
import redis.clients.jedis.Jedis;\n\npublic class RedisExample {\n    public static void main(String[] args) {\n        \/\/ \u9023\u63a5\u5230 Redis\n        Jedis jedis = new Jedis(\"localhost\", 6379);\n        \n        \/\/ \u8a2d\u7f6e\u9375\u503c\u5c0d\n        jedis.set(\"session:12345\", \"user_data\");\n        \n        \/\/ \u8a2d\u7f6e\u904e\u671f\u6642\u9593\u70ba 60 \u79d2\n        jedis.expire(\"session:12345\", 60);\n        \n        System.out.println(\"\u9375 'session:12345' \u8a2d\u7f6e\u6210\u529f\uff0c\u904e\u671f\u6642\u9593\u70ba 60 \u79d2\");\n        \n        \/\/ \u95dc\u9589\u9023\u63a5\n        jedis.close();\n    }\n}<\/code><\/pre>\n
\u6aa2\u67e5\u9375\u662f\u5426\u904e\u671f<\/h2>\n
\u8981\u6aa2\u67e5\u4e00\u500b\u9375\u662f\u5426\u904e\u671f\uff0c\u53ef\u4ee5\u4f7f\u7528 TTL<\/code> \u547d\u4ee4\u3002\u8a72\u547d\u4ee4\u8fd4\u56de\u9375\u7684\u5269\u9918\u751f\u5b58\u6642\u9593\uff08\u4ee5\u79d2\u70ba\u55ae\u4f4d\uff09\u3002\u5982\u679c\u9375\u4e0d\u5b58\u5728\uff0c\u5247\u8fd4\u56de -2\uff1b\u5982\u679c\u9375\u5b58\u5728\u4f46\u6c92\u6709\u8a2d\u7f6e\u904e\u671f\u6642\u9593\uff0c\u5247\u8fd4\u56de -1\u3002<\/p>\n
long ttl = jedis.ttl(\"session:12345\");\nif (ttl > 0) {\n    System.out.println(\"\u9375 'session:12345' \u9084\u5269\u9918 \" + ttl + \" \u79d2\u904e\u671f\");\n} else if (ttl == -1) {\n    System.out.println(\"\u9375 'session:12345' \u6c92\u6709\u8a2d\u7f6e\u904e\u671f\u6642\u9593\");\n} else {\n    System.out.println(\"\u9375 'session:12345' \u5df2\u7d93\u904e\u671f\u6216\u4e0d\u5b58\u5728\");\n}<\/code><\/pre>\n
\u7d50\u8ad6<\/h2>\n
\u5728 Java \u4e2d\u4f7f\u7528 Redis \u9032\u884c\u904e\u671f\u6aa2\u67e5\u662f\u4e00\u500b\u7c21\u55ae\u800c\u6709\u6548\u7684\u904e\u7a0b\u3002\u901a\u904e\u8a2d\u7f6e\u904e\u671f\u6642\u9593\u548c\u6aa2\u67e5\u5269\u9918\u751f\u5b58\u6642\u9593\uff0c\u958b\u767c\u8005\u53ef\u4ee5\u8f15\u9b06\u7ba1\u7406\u61c9\u7528\u7a0b\u5f0f\u4e2d\u7684\u81e8\u6642\u6578\u64da\u3002\u9019\u4e0d\u50c5\u63d0\u9ad8\u4e86\u6578\u64da\u7684\u7ba1\u7406\u6548\u7387\uff0c\u9084\u80fd\u6709\u6548\u91cb\u653e\u8cc7\u6e90\u3002<\/p>\n
\u5982\u679c\u60a8\u6b63\u5728\u5c0b\u627e\u9ad8\u6548\u7684 VPS<\/a> \u89e3\u6c7a\u65b9\u6848\u4f86\u904b\u884c\u60a8\u7684 Java \u61c9\u7528\u7a0b\u5f0f\uff0cServer.HK \u63d0\u4f9b\u4e86\u591a\u7a2e\u9078\u64c7\uff0c\u9069\u5408\u5404\u7a2e\u9700\u6c42\u3002\u7121\u8ad6\u662f \u9999\u6e2fVPS<\/a> \u9084\u662f\u5176\u4ed6\u985e\u578b\u7684 \u4f3a\u670d\u5668<\/a>\uff0c\u6211\u5011\u90fd\u80fd\u70ba\u60a8\u63d0\u4f9b\u7a69\u5b9a\u7684\u652f\u6301\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"
\u4e86\u89e3\u5982\u4f55\u5728 Java \u4e2d\u4f7f\u7528 Redis \u9032\u884c\u904e\u671f\u6aa2\u67e5\uff0c\u78ba\u4fdd\u6578\u64da\u6709\u6548\u6027\u8207\u6027\u80fd\u512a\u5316\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-162201","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/162201","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=162201"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/162201\/revisions"}],"predecessor-version":[{"id":162202,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/162201\/revisions\/162202"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=162201"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=162201"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=162201"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}