{"id":190226,"date":"2024-11-12T10:49:20","date_gmt":"2024-11-12T02:49:20","guid":{"rendered":"https:\/\/server.hk\/cnblog\/190226\/"},"modified":"2024-11-12T10:49:21","modified_gmt":"2024-11-12T02:49:21","slug":"%e5%be%ae%e6%9c%8d%e5%8b%99%e6%8a%80%e8%a1%93%e6%99%82%e4%bb%a3%ef%bc%8credis%e6%98%af%e4%b8%8d%e5%8f%af%e6%88%96%e7%bc%ba%e7%9a%84%e9%85%8d%e7%bd%ae%e9%87%8d%e8%a6%81%e6%94%af%e6%92%90%ef%bc%88","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/190226\/","title":{"rendered":"\u5fae\u670d\u52d9\u6280\u8853\u6642\u4ee3\uff0cRedis\u662f\u4e0d\u53ef\u6216\u7f3a\u7684\u914d\u7f6e\u91cd\u8981\u652f\u6490\uff08\u5fae\u670d\u52d9\u90fd\u8981\u914d\u7f6eredis\uff09"},"content":{"rendered":"<h1 id=\"%e5%be%ae%e6%9c%8d%e5%8b%99%e6%8a%80%e8%a1%93%e6%99%82%e4%bb%a3%ef%bc%8credis%e6%98%af%e4%b8%8d%e5%8f%af%e6%88%96%e7%bc%ba%e7%9a%84%e9%85%8d%e7%bd%ae%e9%87%8d%e8%a6%81%e6%94%af%e6%92%90-AkQeNOYhsn\">\u5fae\u670d\u52d9\u6280\u8853\u6642\u4ee3\uff0cRedis\u662f\u4e0d\u53ef\u6216\u7f3a\u7684\u914d\u7f6e\u91cd\u8981\u652f\u6490<\/h1>\n<p>\u96a8\u8457\u5fae\u670d\u52d9\u67b6\u69cb\u7684\u8208\u8d77\uff0c\u61c9\u7528\u7a0b\u5e8f\u7684\u8a2d\u8a08\u548c\u90e8\u7f72\u65b9\u5f0f\u767c\u751f\u4e86\u6839\u672c\u6027\u7684\u8b8a\u5316\u3002\u5fae\u670d\u52d9\u5f37\u8abf\u5c07\u5927\u578b\u61c9\u7528\u62c6\u5206\u70ba\u5c0f\u578b\u3001\u7368\u7acb\u7684\u670d\u52d9\uff0c\u9019\u4e9b\u670d\u52d9\u53ef\u4ee5\u7368\u7acb\u958b\u767c\u3001\u90e8\u7f72\u548c\u64f4\u5c55\u3002\u5728\u9019\u6a23\u7684\u67b6\u69cb\u4e2d\uff0c\u6578\u64da\u5b58\u5132\u548c\u7ba1\u7406\u6210\u70ba\u4e86\u4e00\u500b\u95dc\u9375\u7684\u6311\u6230\uff0c\u800cRedis\u4f5c\u70ba\u4e00\u7a2e\u9ad8\u6548\u7684\u6578\u64da\u7d50\u69cb\u5b58\u5132\u7cfb\u7d71\uff0c\u5df2\u6210\u70ba\u5fae\u670d\u52d9\u67b6\u69cb\u4e2d\u4e0d\u53ef\u6216\u7f3a\u7684\u7d44\u4ef6\u4e4b\u4e00\u3002<\/p>\n<h2 id=\"redis%e7%9a%84%e5%9f%ba%e6%9c%ac%e6%a6%82%e5%bf%b5-AkQeNOYhsn\">Redis\u7684\u57fa\u672c\u6982\u5ff5<\/h2>\n<p>Redis\u662f\u4e00\u500b\u958b\u6e90\u7684\u5167\u5b58\u6578\u64da\u7d50\u69cb\u5b58\u5132\u7cfb\u7d71\uff0c\u652f\u6301\u591a\u7a2e\u6578\u64da\u7d50\u69cb\uff0c\u5982\u5b57\u7b26\u4e32\u3001\u54c8\u5e0c\u3001\u5217\u8868\u3001\u96c6\u5408\u548c\u6709\u5e8f\u96c6\u5408\u7b49\u3002\u5b83\u7684\u9ad8\u6027\u80fd\u548c\u9748\u6d3b\u6027\u4f7f\u5176\u6210\u70ba\u8a31\u591a\u61c9\u7528\u7684\u9996\u9078\u6578\u64da\u5b58\u5132\u89e3\u6c7a\u65b9\u6848\u3002Redis\u7684\u4e3b\u8981\u7279\u9ede\u5305\u62ec\uff1a<\/p>\n<ul>\n<li><strong>\u9ad8\u6027\u80fd\uff1a<\/strong>Redis\u80fd\u5920\u4ee5\u6beb\u79d2\u7d1a\u7684\u5ef6\u9072\u8655\u7406\u6578\u767e\u842c\u6b21\u8acb\u6c42\uff0c\u9019\u4f7f\u5f97\u5b83\u975e\u5e38\u9069\u5408\u9700\u8981\u5feb\u901f\u97ff\u61c9\u7684\u61c9\u7528\u3002<\/li>\n<li><strong>\u6301\u4e45\u5316\uff1a<\/strong>\u96d6\u7136Redis\u4e3b\u8981\u662f\u5167\u5b58\u5b58\u5132\uff0c\u4f46\u5b83\u4e5f\u652f\u6301\u6578\u64da\u6301\u4e45\u5316\uff0c\u80fd\u5920\u5c07\u6578\u64da\u4fdd\u5b58\u5230\u78c1\u789f\u4e2d\uff0c\u9632\u6b62\u6578\u64da\u4e1f\u5931\u3002<\/li>\n<li><strong>\u652f\u6301\u591a\u7a2e\u6578\u64da\u7d50\u69cb\uff1a<\/strong>Redis\u4e0d\u50c5\u50c5\u662f\u9375\u503c\u5b58\u5132\uff0c\u9084\u652f\u6301\u8907\u96dc\u7684\u6578\u64da\u7d50\u69cb\uff0c\u9019\u4f7f\u5f97\u5b83\u5728\u8655\u7406\u5404\u7a2e\u6578\u64da\u6642\u66f4\u52a0\u9748\u6d3b\u3002<\/li>\n<\/ul>\n<h2 id=\"%e5%be%ae%e6%9c%8d%e5%8b%99%e6%9e%b6%e6%a7%8b%e4%b8%ad%e7%9a%84redis%e6%87%89%e7%94%a8-AkQeNOYhsn\">\u5fae\u670d\u52d9\u67b6\u69cb\u4e2d\u7684Redis\u61c9\u7528<\/h2>\n<p>\u5728\u5fae\u670d\u52d9\u67b6\u69cb\u4e2d\uff0cRedis\u53ef\u4ee5\u7528\u65bc\u591a\u7a2e\u5834\u666f\uff0c\u4ee5\u4e0b\u662f\u5e7e\u500b\u5e38\u898b\u7684\u61c9\u7528\u6848\u4f8b\uff1a<\/p>\n<h3 id=\"1-%e7%b7%a9%e5%ad%98%e5%b1%a4-AkQeNOYhsn\">1. \u7de9\u5b58\u5c64<\/h3>\n<p>\u5fae\u670d\u52d9\u901a\u5e38\u9700\u8981\u983b\u7e41\u8a2a\u554f\u6578\u64da\u5eab\uff0c\u9019\u53ef\u80fd\u6703\u5c0e\u81f4\u6027\u80fd\u74f6\u9838\u3002\u4f7f\u7528Redis\u4f5c\u70ba\u7de9\u5b58\u5c64\uff0c\u53ef\u4ee5\u986f\u8457\u6e1b\u5c11\u5c0d\u5f8c\u7aef\u6578\u64da\u5eab\u7684\u8acb\u6c42\uff0c\u5f9e\u800c\u63d0\u9ad8\u6574\u9ad4\u7cfb\u7d71\u7684\u97ff\u61c9\u901f\u5ea6\u3002\u4f8b\u5982\uff0c\u7576\u7528\u6236\u8acb\u6c42\u67d0\u500b\u8cc7\u6e90\u6642\uff0c\u7cfb\u7d71\u9996\u5148\u6aa2\u67e5Redis\u7de9\u5b58\uff0c\u5982\u679c\u5b58\u5728\u5247\u76f4\u63a5\u8fd4\u56de\uff0c\u5426\u5247\u518d\u67e5\u8a62\u6578\u64da\u5eab\u4e26\u5c07\u7d50\u679c\u5b58\u5165\u7de9\u5b58\u3002<\/p>\n<pre><code>if (redis.exists(key)) {\n    return redis.get(key);\n} else {\n    data = database.query(key);\n    redis.set(key, data);\n    return data;\n}<\/code><\/pre>\n<h3 id=\"2-%e6%b6%88%e6%81%af%e9%9a%8a%e5%88%97-AkQeNOYhsn\">2. \u6d88\u606f\u968a\u5217<\/h3>\n<p>Redis\u9084\u53ef\u4ee5\u7528\u4f5c\u6d88\u606f\u968a\u5217\uff0c\u652f\u6301\u767c\u5e03\/\u8a02\u95b1\u6a21\u5f0f\u3002\u9019\u5c0d\u65bc\u5fae\u670d\u52d9\u4e4b\u9593\u7684\u901a\u4fe1\u975e\u5e38\u6709\u7528\uff0c\u7279\u5225\u662f\u5728\u9700\u8981\u5be6\u6642\u6578\u64da\u8655\u7406\u7684\u5834\u666f\u4e2d\u3002\u670d\u52d9A\u53ef\u4ee5\u5c07\u6d88\u606f\u767c\u4f48\u5230Redis\uff0c\u670d\u52d9B\u5247\u53ef\u4ee5\u8a02\u95b1\u9019\u4e9b\u6d88\u606f\u4e26\u9032\u884c\u8655\u7406\u3002<\/p>\n<pre><code>redis.publish('channel', message);<\/code><\/pre>\n<h3 id=\"3-%e5%88%86%e5%b8%83%e5%bc%8f%e9%8e%96-AkQeNOYhsn\">3. \u5206\u5e03\u5f0f\u9396<\/h3>\n<p>\u5728\u5fae\u670d\u52d9\u67b6\u69cb\u4e2d\uff0c\u78ba\u4fdd\u6578\u64da\u4e00\u81f4\u6027\u662f\u975e\u5e38\u91cd\u8981\u7684\u3002Redis\u63d0\u4f9b\u4e86\u7c21\u55ae\u7684\u5206\u5e03\u5f0f\u9396\u6a5f\u5236\uff0c\u53ef\u4ee5\u5e6b\u52a9\u958b\u767c\u8005\u5728\u591a\u500b\u670d\u52d9\u4e4b\u9593\u5354\u8abf\u5c0d\u5171\u4eab\u8cc7\u6e90\u7684\u8a2a\u554f\u3002\u9019\u6a23\u53ef\u4ee5\u907f\u514d\u6578\u64da\u7af6\u722d\u548c\u4e0d\u4e00\u81f4\u7684\u554f\u984c\u3002<\/p>\n<pre><code>if (redis.setnx(lockKey, lockValue)) {\n    \/\/ \u7372\u53d6\u9396\uff0c\u57f7\u884c\u64cd\u4f5c\n    redis.del(lockKey); \/\/ \u91cb\u653e\u9396\n}<\/code><\/pre>\n<h2 id=\"%e7%b5%90%e8%ab%96-AkQeNOYhsn\">\u7d50\u8ad6<\/h2>\n<p>\u5728\u5fae\u670d\u52d9\u6280\u8853\u6642\u4ee3\uff0cRedis\u4f5c\u70ba\u4e00\u7a2e\u9ad8\u6548\u7684\u6578\u64da\u5b58\u5132\u89e3\u6c7a\u65b9\u6848\uff0c\u70ba\u958b\u767c\u8005\u63d0\u4f9b\u4e86\u5f37\u5927\u7684\u652f\u6301\u3002\u7121\u8ad6\u662f\u4f5c\u70ba\u7de9\u5b58\u5c64\u3001\u6d88\u606f\u968a\u5217\u9084\u662f\u5206\u5e03\u5f0f\u9396\uff0cRedis\u90fd\u80fd\u5920\u6709\u6548\u5730\u89e3\u6c7a\u5fae\u670d\u52d9\u67b6\u69cb\u4e2d\u7684\u5404\u7a2e\u6311\u6230\u3002\u96a8\u8457\u5fae\u670d\u52d9\u7684\u666e\u53ca\uff0cRedis\u7684\u91cd\u8981\u6027\u5c07\u6703\u6108\u52a0\u51f8\u986f\u3002<\/p>\n<p>\u5982\u679c\u60a8\u6b63\u5728\u5c0b\u627e\u53ef\u9760\u7684 <a href=\"https:\/\/server.hk\">VPS<\/a> \u89e3\u6c7a\u65b9\u6848\u4f86\u90e8\u7f72\u60a8\u7684\u5fae\u670d\u52d9\u67b6\u69cb\uff0cServer.HK 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