{"id":163497,"date":"2024-11-05T00:00:28","date_gmt":"2024-11-04T16:00:28","guid":{"rendered":"https:\/\/server.hk\/cnblog\/163497\/"},"modified":"2024-11-05T00:00:29","modified_gmt":"2024-11-04T16:00:29","slug":"%e8%a7%a3%e6%b1%baredis%e7%b7%a9%e5%ad%98%e4%b8%ad%e6%95%b8%e6%93%9a%e6%b7%b7%e4%ba%82%e4%b9%8b%e9%81%93%ef%bc%88redis%e7%b7%a9%e5%ad%98%e6%95%b8%e6%93%9a%e6%b7%b7%e4%ba%82%ef%bc%89","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/163497\/","title":{"rendered":"\u89e3\u6c7aRedis\u7de9\u5b58\u4e2d\u6578\u64da\u6df7\u4e82\u4e4b\u9053\uff08redis\u7de9\u5b58\u6578\u64da\u6df7\u4e82\uff09"},"content":{"rendered":"<h1 id=\"%e8%a7%a3%e6%b1%baredis%e7%b7%a9%e5%ad%98%e4%b8%ad%e6%95%b8%e6%93%9a%e6%b7%b7%e4%ba%82%e4%b9%8b%e9%81%93%ef%bc%88redis%e7%b7%a9%e5%ad%98%e6%95%b8%e6%93%9a%e6%b7%b7%e4%ba%82%ef%bc%89-KNcGwmcdxy\">\u89e3\u6c7aRedis\u7de9\u5b58\u4e2d\u6578\u64da\u6df7\u4e82\u4e4b\u9053\uff08redis\u7de9\u5b58\u6578\u64da\u6df7\u4e82\uff09<\/h1>\n<p>\u5728\u7576\u4eca\u7684\u7db2\u7d61\u61c9\u7528\u4e2d\uff0cRedis\u4f5c\u70ba\u4e00\u7a2e\u9ad8\u6548\u7684\u7de9\u5b58\u89e3\u6c7a\u65b9\u6848\uff0c\u5ee3\u6cdb\u61c9\u7528\u65bc\u63d0\u5347\u6578\u64da\u5b58\u53d6\u901f\u5ea6\u548c\u6e1b\u5c11\u6578\u64da\u5eab\u8ca0\u64d4\u3002\u7136\u800c\uff0c\u96a8\u8457\u61c9\u7528\u7684\u64f4\u5c55\u548c\u6578\u64da\u91cf\u7684\u589e\u52a0\uff0cRedis\u7de9\u5b58\u4e2d\u53ef\u80fd\u51fa\u73fe\u6578\u64da\u6df7\u4e82\u7684\u60c5\u6cc1\uff0c\u9019\u5c0d\u65bc\u7cfb\u7d71\u7684\u7a69\u5b9a\u6027\u548c\u6578\u64da\u7684\u4e00\u81f4\u6027\u9020\u6210\u4e86\u6311\u6230\u3002\u672c\u6587\u5c07\u63a2\u8a0eRedis\u7de9\u5b58\u6578\u64da\u6df7\u4e82\u7684\u539f\u56e0\u53ca\u5176\u89e3\u6c7a\u65b9\u6848\u3002<\/p>\n<h2 id=\"redis%e7%b7%a9%e5%ad%98%e6%95%b8%e6%93%9a%e6%b7%b7%e4%ba%82%e7%9a%84%e5%8e%9f%e5%9b%a0-KNcGwmcdxy\">Redis\u7de9\u5b58\u6578\u64da\u6df7\u4e82\u7684\u539f\u56e0<\/h2>\n<p>\u6578\u64da\u6df7\u4e82\u901a\u5e38\u662f\u7531\u65bc\u4ee5\u4e0b\u5e7e\u500b\u539f\u56e0\u9020\u6210\u7684\uff1a<\/p>\n<ul>\n<li><strong>\u4e26\u767c\u5beb\u5165\uff1a<\/strong>\u7576\u591a\u500b\u9032\u7a0b\u6216\u7dda\u7a0b\u540c\u6642\u5c0dRedis\u9032\u884c\u5beb\u5165\u64cd\u4f5c\u6642\uff0c\u53ef\u80fd\u6703\u5c0e\u81f4\u6578\u64da\u4e0d\u4e00\u81f4\u3002\u4f8b\u5982\uff0c\u5169\u500b\u8acb\u6c42\u540c\u6642\u66f4\u65b0\u540c\u4e00\u500b\u9375\u7684\u503c\uff0c\u6700\u7d42\u53ea\u6703\u4fdd\u7559\u5176\u4e2d\u4e00\u500b\u8acb\u6c42\u7684\u7d50\u679c\u3002<\/li>\n<li><strong>\u904e\u671f\u7b56\u7565\uff1a<\/strong>Redis\u652f\u6301\u8a2d\u7f6e\u9375\u7684\u904e\u671f\u6642\u9593\uff0c\u7576\u9375\u904e\u671f\u5f8c\uff0c\u6578\u64da\u5c07\u88ab\u81ea\u52d5\u522a\u9664\u3002\u5982\u679c\u61c9\u7528\u7a0b\u5e8f\u672a\u80fd\u6b63\u78ba\u8655\u7406\u904e\u671f\u9375\uff0c\u53ef\u80fd\u6703\u5c0e\u81f4\u8b80\u53d6\u5230\u904e\u671f\u6216\u932f\u8aa4\u7684\u6578\u64da\u3002<\/li>\n<li><strong>\u6578\u64da\u5e8f\u5217\u5316\u554f\u984c\uff1a<\/strong>\u5728\u5c07\u8907\u96dc\u6578\u64da\u7d50\u69cb\u5b58\u5132\u5230Redis\u6642\uff0c\u5e8f\u5217\u5316\u548c\u53cd\u5e8f\u5217\u5316\u904e\u7a0b\u4e2d\u7684\u932f\u8aa4\u53ef\u80fd\u5c0e\u81f4\u6578\u64da\u6df7\u4e82\u3002\u4f8b\u5982\uff0c\u4f7f\u7528\u4e0d\u517c\u5bb9\u7684\u5e8f\u5217\u5316\u683c\u5f0f\u53ef\u80fd\u6703\u5c0e\u81f4\u8b80\u53d6\u5230\u932f\u8aa4\u7684\u6578\u64da\u3002<\/li>\n<li><strong>\u7db2\u7d61\u554f\u984c\uff1a<\/strong>\u5728\u5206\u4f48\u5f0f\u7cfb\u7d71\u4e2d\uff0c\u7db2\u7d61\u5ef6\u9072\u6216\u4e2d\u65b7\u53ef\u80fd\u5c0e\u81f4\u6578\u64da\u66f4\u65b0\u672a\u80fd\u53ca\u6642\u540c\u6b65\uff0c\u5f9e\u800c\u9020\u6210\u6578\u64da\u4e0d\u4e00\u81f4\u3002<\/li>\n<\/ul>\n<h2 id=\"%e8%a7%a3%e6%b1%baredis%e7%b7%a9%e5%ad%98%e6%95%b8%e6%93%9a%e6%b7%b7%e4%ba%82%e7%9a%84%e6%96%b9%e6%b3%95-KNcGwmcdxy\">\u89e3\u6c7aRedis\u7de9\u5b58\u6578\u64da\u6df7\u4e82\u7684\u65b9\u6cd5<\/h2>\n<p>\u70ba\u4e86\u6709\u6548\u89e3\u6c7aRedis\u7de9\u5b58\u4e2d\u7684\u6578\u64da\u6df7\u4e82\u554f\u984c\uff0c\u53ef\u4ee5\u63a1\u53d6\u4ee5\u4e0b\u5e7e\u7a2e\u7b56\u7565\uff1a<\/p>\n<h3 id=\"1-%e4%bd%bf%e7%94%a8%e5%88%86%e4%bd%88%e5%bc%8f%e9%8e%96-KNcGwmcdxy\">1. \u4f7f\u7528\u5206\u4f48\u5f0f\u9396<\/h3>\n<p>\u5728\u9032\u884c\u5beb\u5165\u64cd\u4f5c\u6642\uff0c\u53ef\u4ee5\u4f7f\u7528\u5206\u4f48\u5f0f\u9396\u4f86\u78ba\u4fdd\u540c\u4e00\u6642\u9593\u53ea\u6709\u4e00\u500b\u9032\u7a0b\u53ef\u4ee5\u5c0d\u7279\u5b9a\u9375\u9032\u884c\u64cd\u4f5c\u3002\u9019\u6a23\u53ef\u4ee5\u6709\u6548\u907f\u514d\u4e26\u767c\u5beb\u5165\u5c0e\u81f4\u7684\u6578\u64da\u6df7\u4e82\u3002\u4ee5\u4e0b\u662f\u4e00\u500b\u4f7f\u7528Redis\u5be6\u73fe\u5206\u4f48\u5f0f\u9396\u7684\u7c21\u55ae\u793a\u4f8b\uff1a<\/p>\n<pre><code>\nSETNX lock_key unique_lock_value\nEXPIRE lock_key 5\n<\/code><\/pre>\n<p>\u5728\u9019\u6bb5\u4ee3\u78bc\u4e2d\uff0c\u53ea\u6709\u7576`lock_key`\u4e0d\u5b58\u5728\u6642\uff0c`SETNX`\u547d\u4ee4\u624d\u6703\u6210\u529f\uff0c\u4e26\u4e14\u8a2d\u7f6e\u4e00\u500b\u904e\u671f\u6642\u9593\u4ee5\u9632\u6b62\u6b7b\u9396\u3002<\/p>\n<h3 id=\"2-%e6%ad%a3%e7%a2%ba%e8%99%95%e7%90%86%e9%81%8e%e6%9c%9f%e9%8d%b5-KNcGwmcdxy\">2. \u6b63\u78ba\u8655\u7406\u904e\u671f\u9375<\/h3>\n<p>\u61c9\u7528\u7a0b\u5e8f\u61c9\u8a72\u5728\u8b80\u53d6\u6578\u64da\u4e4b\u524d\u6aa2\u67e5\u9375\u662f\u5426\u5b58\u5728\uff0c\u4e26\u5728\u5fc5\u8981\u6642\u91cd\u65b0\u52a0\u8f09\u6578\u64da\u3002\u9019\u6a23\u53ef\u4ee5\u907f\u514d\u8b80\u53d6\u5230\u904e\u671f\u7684\u6578\u64da\u3002\u4f8b\u5982\uff1a<\/p>\n<pre><code>\nif (redis.exists(key)) {\n    value = redis.get(key);\n} else {\n    value = loadDataFromDatabase();\n    redis.set(key, value, EXPIRE_TIME);\n}\n<\/code><\/pre>\n<h3 id=\"3-%e4%bd%bf%e7%94%a8%e4%b8%80%e8%87%b4%e6%80%a7%e5%93%88%e5%b8%8c-KNcGwmcdxy\">3. \u4f7f\u7528\u4e00\u81f4\u6027\u54c8\u5e0c<\/h3>\n<p>\u5728\u5206\u4f48\u5f0f\u7cfb\u7d71\u4e2d\uff0c\u4f7f\u7528\u4e00\u81f4\u6027\u54c8\u5e0c\u53ef\u4ee5\u5e6b\u52a9\u6e1b\u5c11\u56e0\u70ba\u7bc0\u9ede\u8b8a\u66f4\u800c\u5c0e\u81f4\u7684\u6578\u64da\u4e0d\u4e00\u81f4\u554f\u984c\u3002\u9019\u7a2e\u65b9\u6cd5\u53ef\u4ee5\u78ba\u4fdd\u6578\u64da\u5728\u4e0d\u540c\u7bc0\u9ede\u4e4b\u9593\u7684\u5747\u52fb\u5206\u4f48\uff0c\u5f9e\u800c\u63d0\u9ad8\u7cfb\u7d71\u7684\u7a69\u5b9a\u6027\u3002<\/p>\n<h3 id=\"4-%e5%ae%9a%e6%9c%9f%e6%aa%a2%e6%9f%a5%e5%92%8c%e6%b8%85%e7%90%86%e6%95%b8%e6%93%9a-KNcGwmcdxy\">4. \u5b9a\u671f\u6aa2\u67e5\u548c\u6e05\u7406\u6578\u64da<\/h3>\n<p>\u5b9a\u671f\u6aa2\u67e5Redis\u4e2d\u7684\u6578\u64da\uff0c\u4e26\u6e05\u7406\u4e0d\u518d\u9700\u8981\u7684\u9375\uff0c\u53ef\u4ee5\u6e1b\u5c11\u6578\u64da\u6df7\u4e82\u7684\u53ef\u80fd\u6027\u3002\u9019\u53ef\u4ee5\u901a\u904e\u8a2d\u7f6e\u5b9a\u6642\u4efb\u52d9\u4f86\u5be6\u73fe\u3002<\/p>\n<h2 id=\"%e7%b5%90%e8%ab%96-KNcGwmcdxy\">\u7d50\u8ad6<\/h2>\n<p>Redis\u4f5c\u70ba\u4e00\u7a2e\u9ad8\u6548\u7684\u7de9\u5b58\u89e3\u6c7a\u65b9\u6848\uff0c\u96d6\u7136\u5728\u4f7f\u7528\u904e\u7a0b\u4e2d\u53ef\u80fd\u6703\u9047\u5230\u6578\u64da\u6df7\u4e82\u7684\u554f\u984c\uff0c\u4f46\u901a\u904e\u5408\u7406\u7684\u8a2d\u8a08\u548c\u5be6\u65bd\uff0c\u53ef\u4ee5\u6709\u6548\u5730\u6e1b\u5c11\u9019\u4e9b\u554f\u984c\u7684\u767c\u751f\u3002\u4f7f\u7528\u5206\u4f48\u5f0f\u9396\u3001\u6b63\u78ba\u8655\u7406\u904e\u671f\u9375\u3001\u5be6\u65bd\u4e00\u81f4\u6027\u54c8\u5e0c\u4ee5\u53ca\u5b9a\u671f\u6aa2\u67e5\u6578\u64da\uff0c\u90fd\u662f\u89e3\u6c7aRedis\u7de9\u5b58\u6578\u64da\u6df7\u4e82\u7684\u6709\u6548\u65b9\u6cd5\u3002<\/p>\n<p>\u5982\u679c\u60a8\u6b63\u5728\u5c0b\u627e\u7a69\u5b9a\u7684 <a href=\"https:\/\/server.hk\">\u9999\u6e2fVPS<\/a> \u89e3\u6c7a\u65b9\u6848\uff0cServer.HK \u63d0\u4f9b\u591a\u7a2e\u9078\u64c7\uff0c\u5e6b\u52a9\u60a8\u8f15\u9b06\u7ba1\u7406\u60a8\u7684\u61c9\u7528\u548c\u6578\u64da\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u63a2\u7d22\u89e3\u6c7aRedis\u7de9\u5b58\u4e2d\u6578\u64da\u6df7\u4e82\u7684\u6709\u6548\u65b9\u6cd5\uff0c\u63d0\u5347\u6578\u64da\u4e00\u81f4\u6027\u8207\u7cfb\u7d71\u6027\u80fd\uff0c\u78ba\u4fdd\u61c9\u7528\u7a69\u5b9a\u904b\u884c\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-163497","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/163497","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=163497"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/163497\/revisions"}],"predecessor-version":[{"id":163498,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/163497\/revisions\/163498"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=163497"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=163497"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=163497"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}