{"id":196408,"date":"2024-11-13T23:20:23","date_gmt":"2024-11-13T15:20:23","guid":{"rendered":"https:\/\/server.hk\/cnblog\/196408\/"},"modified":"2024-11-13T23:20:24","modified_gmt":"2024-11-13T15:20:24","slug":"%e5%80%bc-%e8%a7%a3%e6%b1%baredis%e7%b7%a9%e5%ad%98get%e6%93%8d%e4%bd%9c%e5%8f%96%e5%87%ba%e7%a9%ba%e5%80%bc%e5%95%8f%e9%a1%8c%ef%bc%88redis%e7%b7%a9%e5%ad%98get%e7%a9%ba%ef%bc%89","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/196408\/","title":{"rendered":"\u503c \u89e3\u6c7aRedis\u7de9\u5b58Get\u64cd\u4f5c\u53d6\u51fa\u7a7a\u503c\u554f\u984c\uff08redis\u7de9\u5b58get\u7a7a\uff09"},"content":{"rendered":"<h1 id=\"%e5%80%bc-%e8%a7%a3%e6%b1%baredis%e7%b7%a9%e5%ad%98get%e6%93%8d%e4%bd%9c%e5%8f%96%e5%87%ba%e7%a9%ba%e5%80%bc%e5%95%8f%e9%a1%8c%ef%bc%88redis%e7%b7%a9%e5%ad%98get%e7%a9%ba%ef%bc%89-GjpspTYddH\">\u503c 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id=\"%e7%82%ba%e4%bb%80%e9%ba%bc%e6%9c%83%e5%87%ba%e7%8f%be%e7%a9%ba%e5%80%bc%e5%95%8f%e9%a1%8c-GjpspTYddH\">\u70ba\u4ec0\u9ebc\u6703\u51fa\u73fe\u7a7a\u503c\u554f\u984c<\/h2>\n<p>\u5728\u4f7f\u7528Redis\u7684\u904e\u7a0b\u4e2d\uff0c\u51fa\u73fe\u7a7a\u503c\u7684\u539f\u56e0\u4e3b\u8981\u6709\u4ee5\u4e0b\u5e7e\u500b\u65b9\u9762\uff1a<\/p>\n<ul>\n<li><strong>\u9375\u4e0d\u5b58\u5728\uff1a<\/strong>\u6700\u5e38\u898b\u7684\u539f\u56e0\u662f\u8acb\u6c42\u7684\u9375\u5728Redis\u4e2d\u4e26\u4e0d\u5b58\u5728\u3002\u9019\u53ef\u80fd\u662f\u56e0\u70ba\u8a72\u9375\u5f9e\u672a\u88ab\u8a2d\u7f6e\uff0c\u6216\u8005\u5728\u67d0\u4e9b\u64cd\u4f5c\u4e2d\u88ab\u522a\u9664\u3002<\/li>\n<li><strong>\u904e\u671f\u9375\uff1a<\/strong>Redis\u652f\u6301\u8a2d\u7f6e\u9375\u7684\u904e\u671f\u6642\u9593\u3002\u5982\u679c\u4e00\u500b\u9375\u5728\u904e\u671f\u6642\u9593\u5230\u9054\u4e4b\u524d\u672a\u88ab\u8a2a\u554f\uff0c\u5247\u8a72\u9375\u6703\u88ab\u81ea\u52d5\u522a\u9664\uff0c\u5c0e\u81f4\u5f8c\u7e8c\u7684GET\u64cd\u4f5c\u8fd4\u56de\u7a7a\u503c\u3002<\/li>\n<li><strong>\u6578\u64da\u5beb\u5165\u932f\u8aa4\uff1a<\/strong>\u5728\u67d0\u4e9b\u60c5\u6cc1\u4e0b\uff0c\u6578\u64da\u53ef\u80fd\u672a\u6b63\u78ba\u5beb\u5165Redis\u3002\u4f8b\u5982\uff0c\u56e0\u70ba\u7db2\u7d61\u554f\u984c\u6216\u4ee3\u78bc\u932f\u8aa4\uff0c\u6578\u64da\u672a\u80fd\u6210\u529f\u5b58\u5132\u3002<\/li>\n<li><strong>\u4e26\u767c\u554f\u984c\uff1a<\/strong>\u5728\u9ad8\u4e26\u767c\u74b0\u5883\u4e0b\uff0c\u53ef\u80fd\u6703\u51fa\u73fe\u6578\u64da\u7af6\u722d\u7684\u60c5\u6cc1\uff0c\u5c0e\u81f4\u67d0\u4e9b\u64cd\u4f5c\u672a\u80fd\u6b63\u78ba\u57f7\u884c\u3002<\/li>\n<\/ul>\n<h2 id=\"%e8%a7%a3%e6%b1%ba%e6%96%b9%e6%a1%88-GjpspTYddH\">\u89e3\u6c7a\u65b9\u6848<\/h2>\n<p>\u91dd\u5c0dRedis GET\u64cd\u4f5c\u8fd4\u56de\u7a7a\u503c\u7684\u554f\u984c\uff0c\u53ef\u4ee5\u63a1\u53d6\u4ee5\u4e0b\u5e7e\u7a2e\u89e3\u6c7a\u65b9\u6848\uff1a<\/p>\n<h3 id=\"1-%e6%aa%a2%e6%9f%a5%e9%8d%b5%e7%9a%84%e5%ad%98%e5%9c%a8%e6%80%a7-GjpspTYddH\">1. \u6aa2\u67e5\u9375\u7684\u5b58\u5728\u6027<\/h3>\n<p>\u5728\u57f7\u884cGET\u64cd\u4f5c\u4e4b\u524d\uff0c\u53ef\u4ee5\u5148\u4f7f\u7528EXISTS\u547d\u4ee4\u6aa2\u67e5\u9375\u662f\u5426\u5b58\u5728\u3002\u9019\u6a23\u53ef\u4ee5\u907f\u514d\u56e0\u70ba\u9375\u4e0d\u5b58\u5728\u800c\u5c0e\u81f4\u7684\u7a7a\u503c\u554f\u984c\u3002<\/p>\n<pre><code>if (redis.exists(key)) {\n    value = redis.get(key);\n} else {\n    \/\/ \u9375\u4e0d\u5b58\u5728\u7684\u8655\u7406\u908f\u8f2f\n}<\/code><\/pre>\n<h3 id=\"2-%e8%a8%ad%e7%bd%ae%e5%90%88%e7%90%86%e7%9a%84%e9%81%8e%e6%9c%9f%e6%99%82%e9%96%93-GjpspTYddH\">2. 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\u4f7f\u7528\u9ed8\u8a8d\u503c\u6216\u91cd\u65b0\u8acb\u6c42\u6578\u64da\n}<\/code><\/pre>\n<h3 id=\"4-%e4%bd%bf%e7%94%a8%e4%ba%8b%e5%8b%99%e6%88%96%e9%8e%96-GjpspTYddH\">4. \u4f7f\u7528\u4e8b\u52d9\u6216\u9396<\/h3>\n<p>\u5728\u9ad8\u4e26\u767c\u74b0\u5883\u4e2d\uff0c\u53ef\u4ee5\u8003\u616e\u4f7f\u7528Redis\u7684\u4e8b\u52d9\u6216\u9396\u6a5f\u5236\u4f86\u907f\u514d\u6578\u64da\u7af6\u722d\u554f\u984c\u3002\u9019\u6a23\u53ef\u4ee5\u78ba\u4fdd\u5728\u540c\u4e00\u6642\u9593\u53ea\u6709\u4e00\u500b\u64cd\u4f5c\u80fd\u5920\u5c0d\u6578\u64da\u9032\u884c\u4fee\u6539\u3002<\/p>\n<h2 id=\"%e7%b8%bd%e7%b5%90-GjpspTYddH\">\u7e3d\u7d50<\/h2>\n<p>Redis\u4f5c\u70ba\u4e00\u7a2e\u9ad8\u6548\u7684\u7de9\u5b58\u89e3\u6c7a\u65b9\u6848\uff0c\u5728\u4f7f\u7528\u904e\u7a0b\u4e2d\u53ef\u80fd\u6703\u9047\u5230GET\u64cd\u4f5c\u8fd4\u56de\u7a7a\u503c\u7684\u554f\u984c\u3002\u901a\u904e\u6aa2\u67e5\u9375\u7684\u5b58\u5728\u6027\u3001\u5408\u7406\u8a2d\u7f6e\u904e\u671f\u6642\u9593\u3001\u5be6\u73fe\u932f\u8aa4\u8655\u7406\u6a5f\u5236\u4ee5\u53ca\u4f7f\u7528\u4e8b\u52d9\u6216\u9396\u7b49\u65b9\u6cd5\uff0c\u53ef\u4ee5\u6709\u6548\u89e3\u6c7a\u9019\u4e00\u554f\u984c\u3002\u5c0d\u65bc\u9700\u8981\u9ad8\u6027\u80fd\u6578\u64da\u5b58\u53d6\u7684\u61c9\u7528\uff0c\u9078\u64c7\u5408\u9069\u7684\u7de9\u5b58\u7b56\u7565\u81f3\u95dc\u91cd\u8981\u3002\u5982\u679c\u60a8\u6b63\u5728\u5c0b\u627e\u53ef\u9760\u7684 <a href=\"https:\/\/server.hk\">\u9999\u6e2fVPS<\/a> 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