{"id":185612,"date":"2024-11-10T23:02:24","date_gmt":"2024-11-10T15:02:24","guid":{"rendered":"https:\/\/server.hk\/cnblog\/185612\/"},"modified":"2024-11-10T23:02:25","modified_gmt":"2024-11-10T15:02:25","slug":"%e9%87%8b%e6%94%beredis%e7%a9%ba%e9%96%93%e6%b8%85%e9%99%a4%e4%b8%80%e5%80%8bkey%ef%bc%88redis%e6%b8%85%e9%99%a4%e4%b8%80%e5%80%8bkey%ef%bc%89","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/185612\/","title":{"rendered":"\u91cb\u653eRedis\u7a7a\u9593\u6e05\u9664\u4e00\u500bkey\uff08redis\u6e05\u9664\u4e00\u500bkey\uff09"},"content":{"rendered":"<h1 id=\"%e9%87%8b%e6%94%beredis%e7%a9%ba%e9%96%93%e6%b8%85%e9%99%a4%e4%b8%80%e5%80%8bkey%ef%bc%88redis%e6%b8%85%e9%99%a4%e4%b8%80%e5%80%8bkey%ef%bc%89-PtqksFZKeF\">\u91cb\u653eRedis\u7a7a\u9593\u6e05\u9664\u4e00\u500bkey\uff08redis\u6e05\u9664\u4e00\u500bkey\uff09<\/h1>\n<p>Redis\u662f\u4e00\u500b\u9ad8\u6548\u80fd\u7684\u9375\u503c\u5b58\u5132\u7cfb\u7d71\uff0c\u5ee3\u6cdb\u61c9\u7528\u65bc\u6578\u64da\u7de9\u5b58\u3001\u6d88\u606f\u968a\u5217\u548c\u5be6\u6642\u6578\u64da\u5206\u6790\u7b49\u5834\u666f\u3002\u96a8\u8457\u4f7f\u7528\u6642\u9593\u7684\u589e\u52a0\uff0cRedis\u4e2d\u7684\u6578\u64da\u53ef\u80fd\u6703\u4e0d\u65b7\u589e\u9577\uff0c\u9019\u6642\u5019\u91cb\u653e\u7a7a\u9593\u8b8a\u5f97\u5c24\u70ba\u91cd\u8981\u3002\u672c\u6587\u5c07\u63a2\u8a0e\u5982\u4f55\u5728Redis\u4e2d\u6e05\u9664\u4e00\u500b\u7279\u5b9a\u7684key\uff0c\u4ee5\u91cb\u653e\u7a7a\u9593\u4e26\u4fdd\u6301\u7cfb\u7d71\u7684\u9ad8\u6548\u904b\u884c\u3002<\/p>\n<h2 id=\"redis%e4%b8%ad%e7%9a%84key%e7%ae%a1%e7%90%86-PtqksFZKeF\">Redis\u4e2d\u7684key\u7ba1\u7406<\/h2>\n<p>\u5728Redis\u4e2d\uff0ckey\u662f\u7528\u4f86\u552f\u4e00\u6a19\u8b58\u6578\u64da\u7684\u5b57\u7b26\u4e32\u3002\u6bcf\u500bkey\u90fd\u53ef\u4ee5\u5c0d\u61c9\u4e00\u500b\u503c\uff0c\u9019\u500b\u503c\u53ef\u4ee5\u662f\u5b57\u7b26\u4e32\u3001\u5217\u8868\u3001\u96c6\u5408\u3001\u54c8\u5e0c\u7b49\u591a\u7a2e\u6578\u64da\u985e\u578b\u3002\u96a8\u8457\u61c9\u7528\u7684\u767c\u5c55\uff0c\u67d0\u4e9bkey\u53ef\u80fd\u6703\u8b8a\u5f97\u4e0d\u518d\u9700\u8981\uff0c\u9019\u6642\u5019\u5c31\u9700\u8981\u5c07\u5176\u522a\u9664\u4ee5\u91cb\u653e\u7a7a\u9593\u3002<\/p>\n<h2 id=\"%e6%b8%85%e9%99%a4redis%e4%b8%ad%e7%9a%84key-PtqksFZKeF\">\u6e05\u9664Redis\u4e2d\u7684key<\/h2>\n<p>\u8981\u6e05\u9664Redis\u4e2d\u7684\u4e00\u500bkey\uff0c\u53ef\u4ee5\u4f7f\u7528Redis\u63d0\u4f9b\u7684\u547d\u4ee4\u3002\u6700\u5e38\u7528\u7684\u547d\u4ee4\u662f<code>DEL<\/code>\u3002\u9019\u500b\u547d\u4ee4\u53ef\u4ee5\u522a\u9664\u6307\u5b9a\u7684key\u53ca\u5176\u5c0d\u61c9\u7684\u503c\u3002<\/p>\n<h3 id=\"%e4%bd%bf%e7%94%a8del%e5%91%bd%e4%bb%a4-PtqksFZKeF\">\u4f7f\u7528DEL\u547d\u4ee4<\/h3>\n<pre><code>DEL key_name<\/code><\/pre>\n<p>\u5728\u4e0a\u9762\u7684\u547d\u4ee4\u4e2d\uff0c<code>key_name<\/code>\u662f\u4f60\u60f3\u8981\u522a\u9664\u7684key\u7684\u540d\u7a31\u3002\u4f8b\u5982\uff0c\u5982\u679c\u4f60\u6709\u4e00\u500bkey\u540d\u70ba<code>user:1001<\/code>\uff0c\u4f60\u53ef\u4ee5\u9019\u6a23\u522a\u9664\u5b83\uff1a<\/p>\n<pre><code>DEL user:1001<\/code><\/pre>\n<p>\u57f7\u884c\u9019\u500b\u547d\u4ee4\u5f8c\uff0cRedis\u5c07\u6703\u522a\u9664<code>user:1001<\/code>\u9019\u500bkey\u53ca\u5176\u5c0d\u61c9\u7684\u503c\uff0c\u4e26\u91cb\u653e\u76f8\u61c9\u7684\u7a7a\u9593\u3002<\/p>\n<h3 id=\"%e6%aa%a2%e6%9f%a5key%e6%98%af%e5%90%a6%e5%ad%98%e5%9c%a8-PtqksFZKeF\">\u6aa2\u67e5key\u662f\u5426\u5b58\u5728<\/h3>\n<p>\u5728\u522a\u9664key\u4e4b\u524d\uff0c\u4f60\u53ef\u80fd\u60f3\u8981\u6aa2\u67e5\u8a72key\u662f\u5426\u5b58\u5728\u3002\u53ef\u4ee5\u4f7f\u7528<code>EXISTS<\/code>\u547d\u4ee4\u4f86\u6aa2\u67e5\uff1a<\/p>\n<pre><code>EXISTS key_name<\/code><\/pre>\n<p>\u5982\u679c\u8fd4\u56de\u503c\u70ba1\uff0c\u5247\u8868\u793a\u8a72key\u5b58\u5728\uff1b\u5982\u679c\u8fd4\u56de\u503c\u70ba0\uff0c\u5247\u8868\u793a\u8a72key\u4e0d\u5b58\u5728\u3002<\/p>\n<h2 id=\"%e6%b3%a8%e6%84%8f%e4%ba%8b%e9%a0%85-PtqksFZKeF\">\u6ce8\u610f\u4e8b\u9805<\/h2>\n<p>\u5728\u4f7f\u7528<code>DEL<\/code>\u547d\u4ee4\u6642\uff0c\u6709\u5e7e\u9ede\u9700\u8981\u6ce8\u610f\uff1a<\/p>\n<ul>\n<li>\u5982\u679c\u6307\u5b9a\u7684key\u4e0d\u5b58\u5728\uff0c<code>DEL<\/code>\u547d\u4ee4\u4e0d\u6703\u5831\u932f\uff0c\u53ea\u662f\u8fd4\u56de0\u3002<\/li>\n<li>\u522a\u9664\u64cd\u4f5c\u662f\u4e0d\u53ef\u9006\u7684\uff0c\u4e00\u65e6\u522a\u9664\uff0c\u6578\u64da\u5c07\u7121\u6cd5\u6062\u5fa9\u3002<\/li>\n<li>\u5728\u9ad8\u4f75\u767c\u7684\u74b0\u5883\u4e2d\uff0c\u5efa\u8b70\u5728\u522a\u9664key\u4e4b\u524d\u9032\u884c\u5b58\u5728\u6027\u6aa2\u67e5\uff0c\u4ee5\u907f\u514d\u4e0d\u5fc5\u8981\u7684\u64cd\u4f5c\u3002<\/li>\n<\/ul>\n<h2 id=\"%e5%85%b6%e4%bb%96%e6%b8%85%e9%99%a4%e6%96%b9%e6%b3%95-PtqksFZKeF\">\u5176\u4ed6\u6e05\u9664\u65b9\u6cd5<\/h2>\n<p>\u9664\u4e86\u4f7f\u7528<code>DEL<\/code>\u547d\u4ee4\uff0cRedis\u9084\u63d0\u4f9b\u4e86\u5176\u4ed6\u4e00\u4e9b\u65b9\u6cd5\u4f86\u7ba1\u7406key\uff1a<\/p>\n<ul>\n<li><code>UNLINK<\/code>\uff1a\u9019\u500b\u547d\u4ee4\u8207<code>DEL<\/code>\u985e\u4f3c\uff0c\u4f46\u5b83\u662f\u975e\u963b\u585e\u7684\uff0c\u9069\u5408\u5728\u9ad8\u4f75\u767c\u74b0\u5883\u4e2d\u4f7f\u7528\u3002<\/li>\n<li><code>FLUSHDB<\/code>\uff1a\u9019\u500b\u547d\u4ee4\u53ef\u4ee5\u6e05\u7a7a\u7576\u524d\u6578\u64da\u5eab\u4e2d\u7684\u6240\u6709key\uff0c\u4f46\u9700\u8b39\u614e\u4f7f\u7528\u3002<\/li>\n<li><code>FLUSHALL<\/code>\uff1a\u9019\u500b\u547d\u4ee4\u6703\u6e05\u7a7a\u6240\u6709\u6578\u64da\u5eab\u4e2d\u7684\u6240\u6709key\uff0c\u4f7f\u7528\u6642\u9700\u7279\u5225\u5c0f\u5fc3\u3002<\/li>\n<\/ul>\n<h2 id=\"%e7%b8%bd%e7%b5%90-PtqksFZKeF\">\u7e3d\u7d50<\/h2>\n<p>\u5728Redis\u4e2d\uff0c\u6e05\u9664\u4e0d\u518d\u9700\u8981\u7684key\u662f\u91cb\u653e\u7a7a\u9593\u7684\u91cd\u8981\u6b65\u9a5f\u3002\u901a\u904e\u4f7f\u7528<code>DEL<\/code>\u547d\u4ee4\uff0c\u6211\u5011\u53ef\u4ee5\u6709\u6548\u5730\u7ba1\u7406\u548c\u91cb\u653eRedis\u4e2d\u7684\u7a7a\u9593\u3002\u4e86\u89e3\u5982\u4f55\u6b63\u78ba\u4f7f\u7528\u9019\u4e9b\u547d\u4ee4\uff0c\u80fd\u5920\u5e6b\u52a9\u958b\u767c\u8005\u4fdd\u6301\u7cfb\u7d71\u7684\u9ad8\u6548\u904b\u884c\uff0c\u907f\u514d\u56e0\u70ba\u904e\u591a\u7684\u7121\u7528\u6578\u64da\u800c\u5f71\u97ff\u6027\u80fd\u3002\u5982\u679c\u60a8\u9700\u8981\u66f4\u9ad8\u6548\u7684\u6578\u64da\u7ba1\u7406\u65b9\u6848\uff0c\u8003\u616e\u4f7f\u7528<a 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