{"id":201172,"date":"2025-05-10T10:42:23","date_gmt":"2025-05-10T02:42:23","guid":{"rendered":"https:\/\/server.hk\/cnblog\/201172\/"},"modified":"2025-05-10T10:42:23","modified_gmt":"2025-05-10T02:42:23","slug":"redis%e8%a7%a3%e5%86%b3%e5%ba%93%e5%ad%98%e5%b9%b6%e5%8f%91%e9%97%ae%e9%a2%98%e5%ae%9e%e7%8e%b0%e6%95%b0%e9%87%8f%e6%8e%a7%e5%88%b6","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/201172\/","title":{"rendered":"redis\u89e3\u51b3\u5e93\u5b58\u5e76\u53d1\u95ee\u9898\u5b9e\u73b0\u6570\u91cf\u63a7\u5236"},"content":{"rendered":"

<\/b> <\/p>\n

redis\u89e3\u51b3\u5e93\u5b58\u5e76\u53d1\u95ee\u9898\u5b9e\u73b0\u6570\u91cf\u63a7\u5236<\/h1>\n

<\/i>\u6536\u85cf<\/span> <\/p>\n

IT\u884c\u4e1a\u76f8\u5bf9\u4e8e\u4e00\u822c\u4f20\u7edf\u884c\u4e1a\uff0c\u53d1\u5c55\u66f4\u65b0\u901f\u5ea6\u66f4\u5feb\uff0c\u4e00\u65e6\u505c\u6b62\u4e86\u5b66\u4e60\uff0c\u5f88\u5feb\u5c31\u4f1a\u88ab\u884c\u4e1a\u6240\u6dd8\u6c70\u3002\u6240\u4ee5\u6211\u4eec\u9700\u8981\u8e0f\u8e0f\u5b9e\u5b9e\u7684\u4e0d\u65ad\u5b66\u4e60\uff0c\u7cbe\u8fdb\u81ea\u5df1\u7684\u6280\u672f\uff0c\u5c24\u5176\u662f\u521d\u5b66\u8005\u3002\u4eca\u5929golang\u5b66\u4e60\u7f51\u7ed9\u5927\u5bb6\u6574\u7406\u4e86\u300aredis\u89e3\u51b3\u5e93\u5b58\u5e76\u53d1\u95ee\u9898\u5b9e\u73b0\u6570\u91cf\u63a7\u5236\u300b\uff0c\u804a\u804a\u5e76\u53d1\u3001redis\u5e93\u5b58\uff0c\u6211\u4eec\u4e00\u8d77\u6765\u770b\u770b\u5427\uff01<\/p>\n

redis\u662f\u5355\u8fdb\u7a0b\uff0c\u963b\u585e\u5f0f\uff0c\u5728\u540c\u4e00\u65f6\u523b\u53ea\u80fd\u5904\u7406\u4e00\u4e2a\u8bf7\u6c42\uff0c\u540e\u6765\u7684\u8bf7\u6c42\u9700\u8981\u6392\u961f\u7b49\u5f85\u3002<\/p>\n

\u4f18\u70b9\uff1a\u56e0\u4e3a\u662f\u5355\u8fdb\u7a0b\uff0c\u6240\u4ee5\u65e0\u9700\u5904\u7406\u5e76\u53d1\u95ee\u9898\uff0c\u964d\u4f4e \u7cfb\u7edf\u590d\u6742\u5ea6<\/p>\n

\u7f3a\u70b9\uff1a\u4e0d\u9002\u5408\u7f13\u5b58\u5927\u5c3a\u5bf8\u5bf9\u8c61\uff08\u8d85\u8fc7100kb\uff09<\/p>\n

\u539f\u56e0\uff1a \u7531\u4e8eRedis\u53ea\u4f7f\u7528\u5355\u6838\uff0c\u800cMemcached\u53ef\u4ee5\u4f7f\u7528\u591a\u6838\uff0c\u6240\u4ee5\u5e73\u5747\u6bcf\u4e00\u4e2a\u6838\u4e0aRedis\u5728\u5b58\u50a8\u5c0f\u6570\u636e\u65f6\u6bd4Memcached\u6027\u80fd\u66f4\u9ad8\u3002<\/p>\n

\u800c\u5728100k\u4ee5\u4e0a\u7684\u6570\u636e\u4e2d\uff0cMemcached\u6027\u80fd\u8981\u9ad8\u4e8eRedis\uff0c\u867d\u7136Redis\u4e5f\u5728\u5b58\u50a8\u5927\u6570\u636e\u7684\u6027\u80fd\u4e0a\u8fdb\u884c\u4e86\u4f18\u5316\uff0c\u4f46\u662f\u6bd4\u8d77Memcached\uff0c\u8fd8\u662f\u7a0d\u6709\u900a\u8272\u3002<\/p>\n

memcache\u662f\u591a\u8fdb\u7a0b\uff0c\u975e\u963b\u585e\u5f0f\uff0c\u5982\u679c\u4ec5\u4ec5\u4f5c\u4e3a\u7f13\u5b58\u6765\u7528\uff0c\u53ef\u4ee5\u7528memcache\u66f4\u5408\u9002<\/p>\n

<\/p>\n

\u4e00\u3001\u547d\u4ee4<\/h2>\n

exists \u67e5\u770b\u8be5\u952ekey\u662f\u5426\u5df2\u5b58\u5728redis\u4e2d\uff0c \u4f8b\u5982 exists mycounter<\/p>\n

set \u8bbe\u7f6e\u521d\u59cb\u5316\u4e00\u4e2akey\u503c \u4f8b\u5982 set mycounter 99<\/p>\n

get \u83b7\u53d6\u4e00\u4e2akey\u503c \u4f8b\u5982 getmycounter<\/p>\n

incr \u81ea\u589e1 \u4f8b\u5982 incrmycounter \/\/\u8f93\u51fa\u7ed3\u679c\u4e3a100<\/p>\n

incrby \u6307\u5b9a\u589e\u957f\u503c \u4f8b\u5982 incrbymycounter 2 \/\/\u8f93\u51fa\u7ed3\u679c\u4e3a102<\/p>\n

\u6307\u5b9a\u51cf\u5c11\u503c \u4f8b\u5982 incrbymycounter -2 \/\/\u8f93\u51fa\u7ed3\u679c\u4e3a100<\/p>\n

setnx \u5f53\u503c\u4e0d\u5b58\u5728\u65f6\uff0c\u8bbe\u7f6e\u8be5\u503c\u6210\u529f \u4f8b\u5982 setnxmycounter 99 \/\/\u8f93\u51fa\u7ed3\u679c\u4e3a0\uff0c\u4ee3\u8868\u8bbe\u7f6e\u5931\u8d25\uff0c\u5df2\u5b58\u5728redis\u4e2d<\/p>\n

setnx key1 12 \/\/\u8f93\u51fa\u7ed3\u679c\u4e3a1\uff0c\u4ee3\u8868\u8bbe\u7f6e\u6210\u529f\uff0c\u4e4b\u524d\u672a\u5b58\u5728redis\u4e2d<\/p>\n

expire \u8bbe\u7f6e\u4e00\u4e2a\u952e\u7684\u751f\u547d\u5468\u671f \u4f8b\u5982 expire mycounter 30 \/\/\u8bbe\u7f6e\u4e3a30\u79d2\u6709\u6548\u671f<\/p>\n

ttl \u83b7\u53d6key\u5931\u6548\u65f6\u95f4 \u4f8b\u5982 ttlmycounter \/\/\u8f93\u51fa\u4e3a 13\uff0c\u4ee3\u8868\u8fd8\u670913\u79d2 ,\u5982\u679c\u8fd4\u56de\u4e3a-1\uff0c\u4ee3\u8868\u6c38\u4e0d\u8fc7\u671f\uff0c\u6c38\u8fdc\u5b58\u5728redis\u7f13\u5b58\u4e2d,\u9664\u975e\u5185\u5b58\u4e0d\u8db3<\/p>\n

\/\/\u5982\u679c\u8fd4\u56de\u4e3a-2,\u4ee3\u8868\u5df2\u5931\u6548\uff0credis\u65e0\u8be5\u952e\u503c\uff0c\u53ef\u4ee5\u7528exists\u9a8c\u8bc1\uff0c\u8fd4\u56de0\uff0c\u4ee3\u8868\u4e0d\u5b58<\/p>\n

\u4e8c\u3001\u5e38\u89c1\u573a\u666f<\/h2>\n

\u5546\u54c1\u62a2\u8d2d\uff0c\u6570\u91cf\u6ca1\u63a7\u5236\u4f4f\uff0c\u5e93\u5b58\u8d85\u9650\uff0c\u6210\u672c\u4e0d\u8db3\uff08\u4f8b\u5982\uff1a\u5e93\u5b581000\uff0c\u5374\u88ab\u7528\u6237\u6210\u529f\u62a2\u8d2d2000\uff0c\u5e93\u5b58\u4e0d\u8db3\uff09<\/p>\n

\u62bd\u5956\u9650\u91cf\uff0c\u6ca1\u63a7\u5236\u4f4f\uff0c\u94b1\u591a\u82b1\u4e86<\/p>\n

\u62a2\u7ea2\u5305<\/p>\n

\u4e09\u3001\u6d41\u7a0b\u56fe\u4e0e\u4ee3\u7801<\/h2>\n

\u65b9\u68481 \u6d41\u7a0b\u56fe\uff1a<\/p>\n

<\/p>\n

\u65b9\u68482\u6d41\u7a0b\u56fe\uff1a<\/p>\n

<\/p>\n

\/\/\u65b9\u68481\u4ee3\u7801,\u6d4b\u8bd5\u574f\u5883TP5\npublic function redisCountV1(){\n    Log::record(\"\u6d4b\u8bd5\u7248\u672c1\u5e76\u53d1\u5f00\u59cb\", Log::INFO);\n    $redis = new Redis();\n    \/\/\u603b\u5e93\u5b58\u6570\u91cf\n    $amountLimit = 100;\n    \/\/redis\u5b58\u50a8\u5e93\u5b58\u952e\u540d\n    $keyName = \"mycounter_v6\";\n    \/\/\u5047\u8bbe\u6bcf\u6b21\u6d88\u8017\u5e93\u5b58\u6570\u4e3a1\n    $incrAmount = 1;\n    \/\/\u5224\u65adredis\u4e2d\u662f\u5426 \u5b58\u5728\u8be5\u503c\uff0c\u5982\u679c\u4e0d\u5b58\u5728\uff0c\u5219\u7528set\u8bbe\u7f6e\uff08\u95ee\u9898\u662f\u5982\u679c\u51fa\u73b0\u5e76\u53d1\uff0c\u4e24\u4e2a\u6216\u591a\u4e2a\u7528\u6237\u540c\u65f6\u8bbf\u95ee\uff0c\u4f1a\u5bfc\u81f4\u5e93\u5b58\u91cd\u65b0\u8bbe\u7f6e\uff09\n    if(!$redis->exists($keyName)){\n        $redis->set($keyName, 95);\n    }\n    \/\/\u4eceredis\u4e2d\u53d6\u51fa\u5f53\u524d\u5e93\u5b58\u6570\n    $currAmount = $redis->get($keyName);\n    \/\/\u5982\u679c\u5f53\u524d\u5e93\u5b58\u6570+\u589e\u957f\u7684\u5e93\u5b58\u6570>\u603b\u5e93\u5b58\uff0c\u76f4\u63a5\u8fd4\u56de\n    if($currAmount + $incrAmount > $amountLimit) {\n        file_put_contents(\"\/Users\/han\/Documents\/www\/cs\/testv1.log\", \"bad luck \\n\", FILE_APPEND);\n        Log::record(\"bad luck\", Log::INFO);\n        return false;\n    }\n    \/\/\u7f13\u5b58\u5e93\u5b58\u6570\u91cf\u589e\u52a0\n    $redis->incrby($keyName, $incrAmount);\n    file_put_contents(\"\/Users\/han\/Documents\/www\/cs\/testv1.log\", \"good luck \\n\", FILE_APPEND);\n    Log::record(\"good luck\", Log::INFO);\n}\n\n\/\/\u6d4b\u8bd5\u65b9\u5f0f\uff1aab  -c 100 -n 200 http:\/\/www.fenleduo.com:8080\/V7\/Test\/redisCountV1<\/pre>\n
\/\/\u65b9\u68482\u4ee3\u7801\uff0c\u6d4b\u8bd5\u574f\u5883TP5\npublic function redisCountV2(){\n    Log::record(\"\u6d4b\u8bd5\u7248\u672c2\u5e76\u53d1\u5f00\u59cb\", Log::INFO);\n    $redis = new Redis();\n    \/\/\u603b\u5e93\u5b58\u6570\u91cf\n    $amountLimit = 100;\n    \/\/redis\u5b58\u50a8\u5e93\u5b58\u952e\u540d\n    $keyName = \"mycounter_v12\";\n    \/\/\u5047\u8bbe\u6bcf\u6b21\u6d88\u8017\u5e93\u5b58\u6570\u4e3a1\n    $incrAmount = 1;\n    \/\/\u5224\u65adredis\u4e2d\u662f\u5426 \u5b58\u5728\u8be5\u503c\uff0c\u5982\u679c\u4e0d\u5b58\u5728\uff0c\u5219\u7528setnx\u8bbe\u7f6e\uff08\u6ce8\uff1a\u5982\u679c\u51fa\u73b0\u5e76\u53d1\uff0c\u4e24\u4e2a\u6216\u591a\u4e2a\u7528\u6237\u540c\u65f6\u8bbf\u95ee\uff0c\u4e0d\u4f1a\u5bfc\u81f4\u5e93\u5b58\u91cd\u65b0\u8bbe\u7f6e\uff09\n    if(!$redis->exists($keyName)){\n        \/\/setnx \u5982\u679c\u4e0d\u5b58\u5728\u8be5\u503c\uff0c\u5219\u8bbe\u7f6e\uff0c\u5982\u679c\u5b58\u5728\u5219\u4e0d\u4f1a\u8bbe\u7f6e\n        $redis->setnx($keyName, 95);\n    }\n    \/\/\u4eceredis\u4e2d\u53d6\u51fa\u5f53\u524d\u5e93\u5b58\u6570\n    $currAmount = $redis->get($keyName);\n    \/\/\u5982\u679c\u5f53\u524d\u5e93\u5b58\u6570+\u589e\u957f\u7684\u5e93\u5b58\u6570>\u603b\u5e93\u5b58\uff0c\u76f4\u63a5\u8fd4\u56de\n    if($redis->incrby($keyName, $incrAmount) > $amountLimit) {\n        file_put_contents(\"\/Users\/han\/Documents\/www\/cs\/testv2.log\", \"bad luck \\n\",FILE_APPEND);\n        Log::record(\"bad luck\", Log::INFO);\n        return false;\n    }\n    file_put_contents(\"\/Users\/han\/Documents\/www\/cs\/testv2.log\", \"good luck \\n\",FILE_APPEND);\n    Log::record(\"good luck\", Log::INFO);\n}\n\/\/\u6d4b\u8bd5\u65b9\u5f0f\uff1aab  -c 100 -n 200 http:\/\/www.fenleduo.com:8080\/V7\/Test\/redisCountV2<\/pre>\n","protected":false},"excerpt":{"rendered":"
redis\u89e3\u51b3\u5e93\u5b58\u5e76\u53d1\u95ee\u9898\u5b9e\u73b0\u6570...<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[101],"tags":[],"class_list":["post-201172","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/201172","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"}],"author":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/comments?post=201172"}],"version-history":[{"count":0,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/201172\/revisions"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=201172"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=201172"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=201172"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}