{"id":159581,"date":"2024-11-03T15:47:25","date_gmt":"2024-11-03T07:47:25","guid":{"rendered":"https:\/\/server.hk\/cnblog\/159581\/"},"modified":"2024-11-03T15:47:27","modified_gmt":"2024-11-03T07:47:27","slug":"%e7%b4%85%e8%89%b2%e9%9b%a3%e9%a1%8c%e8%a7%a3%e6%b1%baredis%e8%b3%87%e6%ba%90%e8%a1%9d%e7%aa%81%ef%bc%88redis%e8%b3%87%e6%ba%90%e8%a1%9d%e7%aa%81%ef%bc%89","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/159581\/","title":{"rendered":"\u7d05\u8272\u96e3\u984c\u89e3\u6c7aRedis\u8cc7\u6e90\u885d\u7a81\uff08redis\u8cc7\u6e90\u885d\u7a81\uff09"},"content":{"rendered":"<h1 id=\"%e7%b4%85%e8%89%b2%e9%9b%a3%e9%a1%8c%e8%a7%a3%e6%b1%baredis%e8%b3%87%e6%ba%90%e8%a1%9d%e7%aa%81-wmNTzwgHBG\">\u7d05\u8272\u96e3\u984c\u89e3\u6c7aRedis\u8cc7\u6e90\u885d\u7a81<\/h1>\n<p>\u5728\u7576\u4eca\u7684\u6578\u64da\u9a45\u52d5\u4e16\u754c\u4e2d\uff0cRedis\u4f5c\u70ba\u4e00\u7a2e\u9ad8\u6548\u7684\u5167\u5b58\u6578\u64da\u5eab\uff0c\u5ee3\u6cdb\u61c9\u7528\u65bc\u5404\u7a2e\u5834\u666f\uff0c\u5305\u62ec\u7de9\u5b58\u3001\u6d88\u606f\u968a\u5217\u548c\u5be6\u6642\u6578\u64da\u8655\u7406\u3002\u7136\u800c\uff0c\u96a8\u8457\u61c9\u7528\u7a0b\u5e8f\u7684\u64f4\u5c55\u548c\u7528\u6236\u6578\u91cf\u7684\u589e\u52a0\uff0cRedis\u8cc7\u6e90\u885d\u7a81\u7684\u554f\u984c\u9010\u6f38\u6d6e\u73fe\uff0c\u7279\u5225\u662f\u5728\u591a\u7dda\u7a0b\u6216\u591a\u9032\u7a0b\u74b0\u5883\u4e2d\u3002\u672c\u6587\u5c07\u63a2\u8a0eRedis\u8cc7\u6e90\u885d\u7a81\u7684\u6210\u56e0\u53ca\u5176\u89e3\u6c7a\u65b9\u6848\u3002<\/p>\n<h2 id=\"%e4%bb%80%e9%ba%bc%e6%98%afredis%e8%b3%87%e6%ba%90%e8%a1%9d%e7%aa%81%ef%bc%9f-wmNTzwgHBG\">\u4ec0\u9ebc\u662fRedis\u8cc7\u6e90\u885d\u7a81\uff1f<\/h2>\n<p>Redis\u8cc7\u6e90\u885d\u7a81\u901a\u5e38\u6307\u7684\u662f\u5728\u591a\u500b\u5ba2\u6236\u7aef\u540c\u6642\u8a2a\u554f\u6216\u4fee\u6539\u76f8\u540c\u6578\u64da\u6642\uff0c\u5c0e\u81f4\u7684\u6578\u64da\u4e0d\u4e00\u81f4\u6216\u64cd\u4f5c\u5931\u6557\u7684\u60c5\u6cc1\u3002\u9019\u7a2e\u60c5\u6cc1\u5728\u9ad8\u4e26\u767c\u74b0\u5883\u4e2d\u5c24\u70ba\u5e38\u898b\uff0c\u53ef\u80fd\u6703\u5c0e\u81f4\u6578\u64da\u4e1f\u5931\u3001\u91cd\u8907\u5beb\u5165\u6216\u5176\u4ed6\u610f\u5916\u884c\u70ba\u3002<\/p>\n<h2 id=\"%e8%b3%87%e6%ba%90%e8%a1%9d%e7%aa%81%e7%9a%84%e6%88%90%e5%9b%a0-wmNTzwgHBG\">\u8cc7\u6e90\u885d\u7a81\u7684\u6210\u56e0<\/h2>\n<ul>\n<li><strong>\u9ad8\u4e26\u767c\u8a2a\u554f\uff1a<\/strong>\u7576\u591a\u500b\u5ba2\u6236\u7aef\u540c\u6642\u5c0dRedis\u9032\u884c\u8b80\u5beb\u64cd\u4f5c\u6642\uff0c\u53ef\u80fd\u6703\u51fa\u73fe\u8cc7\u6e90\u885d\u7a81\u3002<\/li>\n<li><strong>\u7f3a\u4e4f\u9396\u6a5f\u5236\uff1a<\/strong>Redis\u672c\u8eab\u4e0d\u63d0\u4f9b\u5167\u5efa\u7684\u9396\u6a5f\u5236\uff0c\u9019\u4f7f\u5f97\u5728\u591a\u7dda\u7a0b\u74b0\u5883\u4e2d\uff0c\u5c0d\u540c\u4e00\u9375\u7684\u64cd\u4f5c\u53ef\u80fd\u6703\u4e92\u76f8\u5e72\u64fe\u3002<\/li>\n<li><strong>\u7db2\u7d61\u5ef6\u9072\uff1a<\/strong>\u5728\u5206\u4f48\u5f0f\u7cfb\u7d71\u4e2d\uff0c\u7db2\u7d61\u5ef6\u9072\u53ef\u80fd\u5c0e\u81f4\u64cd\u4f5c\u7684\u9806\u5e8f\u4e0d\u4e00\u81f4\uff0c\u9032\u800c\u5f15\u767c\u885d\u7a81\u3002<\/li>\n<\/ul>\n<h2 id=\"%e8%a7%a3%e6%b1%baredis%e8%b3%87%e6%ba%90%e8%a1%9d%e7%aa%81%e7%9a%84%e6%96%b9%e6%b3%95-wmNTzwgHBG\">\u89e3\u6c7aRedis\u8cc7\u6e90\u885d\u7a81\u7684\u65b9\u6cd5<\/h2>\n<h3 id=\"1-%e4%bd%bf%e7%94%a8%e5%88%86%e5%b8%83%e5%bc%8f%e9%8e%96-wmNTzwgHBG\">1. \u4f7f\u7528\u5206\u5e03\u5f0f\u9396<\/h3>\n<p>\u5206\u5e03\u5f0f\u9396\u662f\u4e00\u7a2e\u5e38\u898b\u7684\u89e3\u6c7a\u65b9\u6848\uff0c\u53ef\u4ee5\u6709\u6548\u9632\u6b62\u591a\u500b\u5ba2\u6236\u7aef\u540c\u6642\u4fee\u6539\u540c\u4e00\u6578\u64da\u3002\u53ef\u4ee5\u4f7f\u7528Redis\u7684SETNX\u547d\u4ee4\u4f86\u5be6\u73fe\u7c21\u55ae\u7684\u9396\u6a5f\u5236\uff1a<\/p>\n<pre><code>SETNX lock_key unique_lock_value\nEXPIRE lock_key 10\n<\/code><\/pre>\n<p>\u5728\u9019\u6bb5\u4ee3\u78bc\u4e2d\uff0c\u53ea\u6709\u7576lock_key\u4e0d\u5b58\u5728\u6642\uff0cSETNX\u547d\u4ee4\u624d\u6703\u6210\u529f\uff0c\u9019\u6a23\u5c31\u53ef\u4ee5\u7372\u5f97\u9396\u3002\u7372\u5f97\u9396\u5f8c\uff0c\u61c9\u8a72\u5728\u64cd\u4f5c\u5b8c\u6210\u5f8c\u91cb\u653e\u9396\uff0c\u4ee5\u907f\u514d\u6b7b\u9396\u7684\u60c5\u6cc1\u3002<\/p>\n<h3 id=\"2-%e4%bd%bf%e7%94%a8%e4%ba%8b%e5%8b%99-wmNTzwgHBG\">2. \u4f7f\u7528\u4e8b\u52d9<\/h3>\n<p>Redis\u652f\u6301\u4e8b\u52d9\u64cd\u4f5c\uff0c\u53ef\u4ee5\u901a\u904eMULTI\u548cEXEC\u547d\u4ee4\u4f86\u5be6\u73fe\u539f\u5b50\u6027\u64cd\u4f5c\u3002\u9019\u6a23\u53ef\u4ee5\u78ba\u4fdd\u4e00\u7d44\u547d\u4ee4\u8981\u9ebc\u5168\u90e8\u57f7\u884c\uff0c\u8981\u9ebc\u5168\u90e8\u4e0d\u57f7\u884c\uff0c\u5f9e\u800c\u6e1b\u5c11\u8cc7\u6e90\u885d\u7a81\u7684\u53ef\u80fd\u6027\uff1a<\/p>\n<pre><code>MULTI\nSET key1 value1\nSET key2 value2\nEXEC\n<\/code><\/pre>\n<h3 id=\"3-%e4%bd%bf%e7%94%a8lua%e8%85%b3%e6%9c%ac-wmNTzwgHBG\">3. \u4f7f\u7528Lua\u8173\u672c<\/h3>\n<p>Lua\u8173\u672c\u53ef\u4ee5\u5728Redis\u4e2d\u539f\u5b50\u6027\u5730\u57f7\u884c\u591a\u500b\u64cd\u4f5c\uff0c\u9019\u6a23\u53ef\u4ee5\u907f\u514d\u5728\u57f7\u884c\u904e\u7a0b\u4e2d\u51fa\u73fe\u8cc7\u6e90\u885d\u7a81\u3002\u4ee5\u4e0b\u662f\u4e00\u500b\u7c21\u55ae\u7684Lua\u8173\u672c\u793a\u4f8b\uff1a<\/p>\n<pre><code>local current = redis.call('GET', KEYS[1])\nif current then\n    redis.call('SET', KEYS[1], ARGV[1])\nend\n<\/code><\/pre>\n<p>\u9019\u6bb5\u8173\u672c\u9996\u5148\u6aa2\u67e5KEYS[1]\u662f\u5426\u5b58\u5728\uff0c\u5982\u679c\u5b58\u5728\u5247\u66f4\u65b0\u5176\u503c\u3002\u9019\u6a23\u53ef\u4ee5\u78ba\u4fdd\u64cd\u4f5c\u7684\u539f\u5b50\u6027\u3002<\/p>\n<h2 id=\"%e7%b5%90%e8%ab%96-wmNTzwgHBG\">\u7d50\u8ad6<\/h2>\n<p>Redis\u8cc7\u6e90\u885d\u7a81\u662f\u4e00\u500b\u5e38\u898b\u7684\u554f\u984c\uff0c\u4f46\u901a\u904e\u4f7f\u7528\u5206\u5e03\u5f0f\u9396\u3001\u4e8b\u52d9\u548cLua\u8173\u672c\u7b49\u6280\u8853\uff0c\u53ef\u4ee5\u6709\u6548\u5730\u6e1b\u5c11\u6216\u907f\u514d\u9019\u4e9b\u885d\u7a81\u3002\u96a8\u8457\u61c9\u7528\u7a0b\u5e8f\u7684\u64f4\u5c55\uff0c\u958b\u767c\u8005\u9700\u8981\u66f4\u52a0\u91cd\u8996\u9019\u4e9b\u554f\u984c\uff0c\u4ee5\u78ba\u4fdd\u6578\u64da\u7684\u4e00\u81f4\u6027\u548c\u7cfb\u7d71\u7684\u7a69\u5b9a\u6027\u3002<\/p>\n<p>\u5982\u679c\u60a8\u6b63\u5728\u5c0b\u627e\u9ad8\u6548\u7684\u89e3\u6c7a\u65b9\u6848\u4f86\u7ba1\u7406\u60a8\u7684\u6578\u64da\uff0c\u8003\u616e\u4f7f\u7528<a href=\"https:\/\/server.hk\">\u9999\u6e2fVPS<\/a>\u6216<a href=\"https:\/\/server.hk\">\u96f2\u4f3a\u670d\u5668<\/a>\uff0c\u4ee5\u4fbf\u66f4\u597d\u5730\u652f\u6301\u60a8\u7684Redis\u61c9\u7528\u7a0b\u5e8f\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u89e3\u6c7a\u7d05\u8272\u96e3\u984c\u4e2d\u7684Redis\u8cc7\u6e90\u885d\u7a81\uff0c\u63d0\u5347\u7cfb\u7d71\u6548\u80fd\uff0c\u78ba\u4fdd\u6578\u64da\u4e00\u81f4\u6027\u8207\u7a69\u5b9a\u6027\uff0c\u512a\u5316\u61c9\u7528\u7a0b\u5e8f\u6027\u80fd\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-159581","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/159581","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=159581"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/159581\/revisions"}],"predecessor-version":[{"id":159582,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/159581\/revisions\/159582"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=159581"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=159581"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=159581"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}