{"id":172253,"date":"2024-11-07T11:35:19","date_gmt":"2024-11-07T03:35:19","guid":{"rendered":"https:\/\/server.hk\/cnblog\/172253\/"},"modified":"2024-11-07T11:35:20","modified_gmt":"2024-11-07T03:35:20","slug":"%e8%ae%93redis%e7%b7%a9%e5%ad%98%e4%b8%ad%e7%9a%84%e9%a0%82%e7%b4%9akey%e8%87%aa%e5%8b%95%e9%81%8e%e6%9c%9f%ef%bc%88redis%e9%81%8e%e6%9c%9f%e9%a0%82%e7%b4%9akey%ef%bc%89","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/172253\/","title":{"rendered":"\u8b93Redis\u7de9\u5b58\u4e2d\u7684\u9802\u7d1aKey\u81ea\u52d5\u904e\u671f\uff08redis\u904e\u671f\u9802\u7d1akey\uff09"},"content":{"rendered":"<h1 id=\"%e8%ae%93redis%e7%b7%a9%e5%ad%98%e4%b8%ad%e7%9a%84%e9%a0%82%e7%b4%9akey%e8%87%aa%e5%8b%95%e9%81%8e%e6%9c%9f%ef%bc%88redis%e9%81%8e%e6%9c%9f%e9%a0%82%e7%b4%9akey%ef%bc%89-eEbZyDCLGA\">\u8b93Redis\u7de9\u5b58\u4e2d\u7684\u9802\u7d1aKey\u81ea\u52d5\u904e\u671f\uff08redis\u904e\u671f\u9802\u7d1akey\uff09<\/h1>\n<p>\u5728\u7576\u4eca\u7684\u7db2\u7d61\u61c9\u7528\u4e2d\uff0c\u6027\u80fd\u548c\u6548\u7387\u662f\u81f3\u95dc\u91cd\u8981\u7684\u3002Redis\u4f5c\u70ba\u4e00\u500b\u9ad8\u6548\u7684\u5167\u5b58\u6578\u64da\u5eab\uff0c\u5ee3\u6cdb\u61c9\u7528\u65bc\u7de9\u5b58\u3001\u6d88\u606f\u968a\u5217\u548c\u6578\u64da\u5b58\u5132\u7b49\u5834\u666f\u3002\u70ba\u4e86\u66f4\u597d\u5730\u7ba1\u7406\u5167\u5b58\u548c\u6578\u64da\uff0cRedis\u63d0\u4f9b\u4e86\u81ea\u52d5\u904e\u671f\u7684\u529f\u80fd\uff0c\u7279\u5225\u662f\u5c0d\u65bc\u9802\u7d1aKey\u7684\u904e\u671f\u7ba1\u7406\u3002\u672c\u6587\u5c07\u6df1\u5165\u63a2\u8a0e\u5982\u4f55\u8b93Redis\u7de9\u5b58\u4e2d\u7684\u9802\u7d1aKey\u81ea\u52d5\u904e\u671f\uff0c\u4e26\u63d0\u4f9b\u4e00\u4e9b\u5be6\u7528\u7684\u793a\u4f8b\u548c\u4ee3\u78bc\u7247\u6bb5\u3002<\/p>\n<h2 id=\"redis%e7%9a%84%e9%81%8e%e6%9c%9f%e6%a9%9f%e5%88%b6-eEbZyDCLGA\">Redis\u7684\u904e\u671f\u6a5f\u5236<\/h2>\n<p>Redis\u652f\u6301\u70ba\u6bcf\u500bKey\u8a2d\u7f6e\u904e\u671f\u6642\u9593\uff0c\u9019\u610f\u5473\u8457\u7576Key\u9054\u5230\u6307\u5b9a\u7684\u904e\u671f\u6642\u9593\u5f8c\uff0cRedis\u6703\u81ea\u52d5\u522a\u9664\u8a72Key\u3002\u9019\u4e00\u7279\u6027\u5c0d\u65bc\u7de9\u5b58\u6578\u64da\u7279\u5225\u6709\u7528\uff0c\u56e0\u70ba\u5b83\u53ef\u4ee5\u9632\u6b62\u904e\u671f\u6578\u64da\u4f54\u7528\u5167\u5b58\u3002Redis\u7684\u904e\u671f\u6a5f\u5236\u4e3b\u8981\u6709\u5169\u7a2e\u65b9\u5f0f\uff1a<\/p>\n<ul>\n<li><strong>\u5b9a\u6642\u522a\u9664\uff1a<\/strong>Redis\u6703\u5b9a\u671f\u6aa2\u67e5\u904e\u671f\u7684Key\uff0c\u4e26\u5c07\u5176\u522a\u9664\u3002<\/li>\n<li><strong>\u60f0\u6027\u522a\u9664\uff1a<\/strong>\u7576\u8a2a\u554f\u4e00\u500bKey\u6642\uff0cRedis\u6703\u6aa2\u67e5\u8a72Key\u662f\u5426\u904e\u671f\uff0c\u5982\u679c\u904e\u671f\u5247\u522a\u9664\u3002<\/li>\n<\/ul>\n<h2 id=\"%e8%a8%ad%e7%bd%aekey%e7%9a%84%e9%81%8e%e6%9c%9f%e6%99%82%e9%96%93-eEbZyDCLGA\">\u8a2d\u7f6eKey\u7684\u904e\u671f\u6642\u9593<\/h2>\n<p>\u5728Redis\u4e2d\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u547d\u4ee4\u4f86\u8a2d\u7f6eKey\u7684\u904e\u671f\u6642\u9593\uff1a<\/p>\n<pre><code>EXPIRE key seconds<\/code><\/pre>\n<p>\u4f8b\u5982\uff0c\u82e5\u8981\u5c07Key\u70ba\u201csession:123\u201d\u7684\u904e\u671f\u6642\u9593\u8a2d\u7f6e\u70ba60\u79d2\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u547d\u4ee4\uff1a<\/p>\n<pre><code>EXPIRE session:123 60<\/code><\/pre>\n<p>\u6b64\u5916\uff0c\u9084\u53ef\u4ee5\u4f7f\u7528<code>SETEX<\/code>\u547d\u4ee4\u4f86\u540c\u6642\u8a2d\u7f6eKey\u7684\u503c\u548c\u904e\u671f\u6642\u9593\uff1a<\/p>\n<pre><code>SETEX session:123 60 \"user_data\"<\/code><\/pre>\n<h2 id=\"%e8%87%aa%e5%8b%95%e9%81%8e%e6%9c%9f%e9%a0%82%e7%b4%9akey%e7%9a%84%e7%ad%96%e7%95%a5-eEbZyDCLGA\">\u81ea\u52d5\u904e\u671f\u9802\u7d1aKey\u7684\u7b56\u7565<\/h2>\n<p>\u5728\u5be6\u969b\u61c9\u7528\u4e2d\uff0c\u53ef\u80fd\u9700\u8981\u5c0d\u4e00\u7d44\u9802\u7d1aKey\u9032\u884c\u81ea\u52d5\u904e\u671f\u7ba1\u7406\u3002\u9019\u53ef\u4ee5\u901a\u904e\u4ee5\u4e0b\u5e7e\u7a2e\u7b56\u7565\u4f86\u5be6\u73fe\uff1a<\/p>\n<h3 id=\"1-%e4%bd%bf%e7%94%a8%e5%91%bd%e5%90%8d%e7%a9%ba%e9%96%93-eEbZyDCLGA\">1. \u4f7f\u7528\u547d\u540d\u7a7a\u9593<\/h3>\n<p>\u70ba\u4e86\u66f4\u597d\u5730\u7ba1\u7406\u9802\u7d1aKey\uff0c\u53ef\u4ee5\u4f7f\u7528\u547d\u540d\u7a7a\u9593\u7684\u65b9\u5f0f\u3002\u4f8b\u5982\uff0c\u5c07\u6240\u6709\u7528\u6236\u6703\u8a71\u7684Key\u4ee5\u201csession:\u201d\u4f5c\u70ba\u524d\u7db4\u3002\u9019\u6a23\u53ef\u4ee5\u65b9\u4fbf\u5730\u6279\u91cf\u7ba1\u7406\u9019\u4e9bKey\u7684\u904e\u671f\u6642\u9593\u3002<\/p>\n<h3 id=\"2-%e5%ae%9a%e6%9c%9f%e6%b8%85%e7%90%86%e9%81%8e%e6%9c%9fkey-eEbZyDCLGA\">2. \u5b9a\u671f\u6e05\u7406\u904e\u671fKey<\/h3>\n<p>\u53ef\u4ee5\u8a2d\u7f6e\u4e00\u500b\u5b9a\u6642\u4efb\u52d9\uff0c\u5b9a\u671f\u6aa2\u67e5\u4e26\u522a\u9664\u904e\u671f\u7684\u9802\u7d1aKey\u3002\u9019\u53ef\u4ee5\u901a\u904eRedis\u7684<code>SCAN<\/code>\u547d\u4ee4\u4f86\u5be6\u73fe\uff0c\u8a72\u547d\u4ee4\u53ef\u4ee5\u904d\u6b77\u6240\u6709\u7684Key\uff0c\u800c\u4e0d\u6703\u963b\u585eRedis\u670d\u52d9\u5668\u3002<\/p>\n<pre><code>SCAN 0 MATCH session:* COUNT 100<\/code><\/pre>\n<p>\u9019\u689d\u547d\u4ee4\u6703\u8fd4\u56de\u6240\u6709\u4ee5\u201csession:\u201d\u958b\u982d\u7684Key\uff0c\u7136\u5f8c\u53ef\u4ee5\u6aa2\u67e5\u9019\u4e9bKey\u7684\u904e\u671f\u6642\u9593\u4e26\u9032\u884c\u522a\u9664\u3002<\/p>\n<h3 id=\"3-%e4%bd%bf%e7%94%a8redis%e7%9a%84key%e9%81%8e%e6%9c%9f%e4%ba%8b%e4%bb%b6-eEbZyDCLGA\">3. \u4f7f\u7528Redis\u7684Key\u904e\u671f\u4e8b\u4ef6<\/h3>\n<p>Redis\u9084\u652f\u6301Key\u904e\u671f\u4e8b\u4ef6\uff0c\u7576\u4e00\u500bKey\u904e\u671f\u6642\uff0c\u53ef\u4ee5\u89f8\u767c\u4e00\u500b\u4e8b\u4ef6\u3002\u9019\u53ef\u4ee5\u901a\u904eRedis\u7684\u767c\u5e03\/\u8a02\u95b1\u529f\u80fd\u4f86\u5be6\u73fe\uff0c\u5f9e\u800c\u5728Key\u904e\u671f\u6642\u57f7\u884c\u7279\u5b9a\u7684\u64cd\u4f5c\u3002<\/p>\n<pre><code>CONFIG SET notify-keyspace-events Ex<\/code><\/pre>\n<p>\u9019\u689d\u547d\u4ee4\u6703\u555f\u7528Key\u904e\u671f\u4e8b\u4ef6\u7684\u901a\u77e5\uff0c\u7136\u5f8c\u53ef\u4ee5\u8a02\u95b1\u76f8\u61c9\u7684\u983b\u9053\u4f86\u63a5\u6536\u904e\u671f\u901a\u77e5\u3002<\/p>\n<h2 id=\"%e7%b8%bd%e7%b5%90-eEbZyDCLGA\">\u7e3d\u7d50<\/h2>\n<p>\u5728Redis\u4e2d\uff0c\u81ea\u52d5\u904e\u671f\u9802\u7d1aKey\u7684\u7ba1\u7406\u662f\u63d0\u9ad8\u61c9\u7528\u6027\u80fd\u548c\u5167\u5b58\u4f7f\u7528\u6548\u7387\u7684\u91cd\u8981\u624b\u6bb5\u3002\u901a\u904e\u8a2d\u7f6e\u904e\u671f\u6642\u9593\u3001\u4f7f\u7528\u547d\u540d\u7a7a\u9593\u3001\u5b9a\u671f\u6e05\u7406\u904e\u671fKey\u4ee5\u53ca\u5229\u7528Key\u904e\u671f\u4e8b\u4ef6\uff0c\u53ef\u4ee5\u6709\u6548\u5730\u7ba1\u7406\u7de9\u5b58\u4e2d\u7684\u6578\u64da\u3002\u9019\u4e9b\u7b56\u7565\u4e0d\u50c5\u80fd\u5920\u5e6b\u52a9\u958b\u767c\u8005\u66f4\u597d\u5730\u63a7\u5236\u6578\u64da\u7684\u751f\u547d\u5468\u671f\uff0c\u9084\u80fd\u63d0\u5347\u6574\u9ad4\u7cfb\u7d71\u7684\u6027\u80fd\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 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