{"id":125277,"date":"2024-10-25T21:17:20","date_gmt":"2024-10-25T13:17:20","guid":{"rendered":"https:\/\/server.hk\/cnblog\/125277\/"},"modified":"2024-10-25T21:17:21","modified_gmt":"2024-10-25T13:17:21","slug":"redis-%e7%b2%be%e5%bd%a9%e7%ac%ac%e5%85%ad%e7%a8%ae%e6%95%b8%e6%93%9a%e7%b5%90%e6%a7%8b","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/125277\/","title":{"rendered":"Redis \u7cbe\u5f69\u7b2c\u516d\u7a2e\u6578\u64da\u7d50\u69cb"},"content":{"rendered":"<h1 id=\"redis-%e7%b2%be%e5%bd%a9%e7%ac%ac%e5%85%ad%e7%a8%ae%e6%95%b8%e6%93%9a%e7%b5%90%e6%a7%8b-DVpATUNKbi\">Redis \u7cbe\u5f69\u7b2c\u516d\u7a2e\u6578\u64da\u7d50\u69cb<\/h1>\n<p>\u5728\u7576\u4eca\u7684\u6578\u64da\u8655\u7406\u548c\u5b58\u5132\u9818\u57df\uff0cRedis \u4f5c\u70ba\u4e00\u500b\u9ad8\u6548\u7684\u9375\u503c\u6578\u64da\u5eab\uff0c\u63d0\u4f9b\u4e86\u591a\u7a2e\u6578\u64da\u7d50\u69cb\u4f86\u6eff\u8db3\u4e0d\u540c\u7684\u9700\u6c42\u3002\u9664\u4e86\u5e38\u898b\u7684\u5b57\u7b26\u4e32\u3001\u54c8\u5e0c\u3001\u5217\u8868\u3001\u96c6\u5408\u548c\u6709\u5e8f\u96c6\u5408\u4e4b\u5916\uff0cRedis \u9084\u63d0\u4f9b\u4e86\u4e00\u7a2e\u76f8\u5c0d\u8f03\u5c11\u88ab\u63d0\u53ca\u4f46\u540c\u6a23\u5f37\u5927\u7684\u6578\u64da\u7d50\u69cb\u2014\u2014\u4f4d\u5716\uff08Bitmap\uff09\u3002\u672c\u6587\u5c07\u6df1\u5165\u63a2\u8a0e\u4f4d\u5716\u7684\u7279\u6027\u3001\u4f7f\u7528\u5834\u666f\u53ca\u5176\u5728\u5be6\u969b\u61c9\u7528\u4e2d\u7684\u793a\u4f8b\u3002<\/p>\n<h2 id=\"%e4%bb%80%e9%ba%bc%e6%98%af%e4%bd%8d%e5%9c%96%ef%bc%88bitmap%ef%bc%89%ef%bc%9f-DVpATUNKbi\">\u4ec0\u9ebc\u662f\u4f4d\u5716\uff08Bitmap\uff09\uff1f<\/h2>\n<p>\u4f4d\u5716\u662f\u4e00\u7a2e\u4ee5\u4f4d\uff08bit\uff09\u70ba\u55ae\u4f4d\u7684\u6578\u64da\u7d50\u69cb\uff0c\u901a\u5e38\u7528\u65bc\u8868\u793a\u4e8c\u9032\u5236\u72c0\u614b\u3002\u6bcf\u4e00\u500b\u4f4d\u53ef\u4ee5\u662f 0 \u6216 1\uff0c\u9019\u4f7f\u5f97\u4f4d\u5716\u5728\u5b58\u5132\u5927\u91cf\u5e03\u723e\u503c\u6642\u975e\u5e38\u9ad8\u6548\u3002Redis \u4e2d\u7684\u4f4d\u5716\u5be6\u969b\u4e0a\u662f\u57fa\u65bc\u5b57\u7b26\u4e32\u7684\uff0c\u901a\u904e\u5c07\u5b57\u7b26\u4e32\u7684\u6bcf\u4e00\u500b\u5b57\u5143\u8996\u70ba\u4e00\u500b\u4f4d\u4f86\u5be6\u73fe\u3002<\/p>\n<h2 id=\"%e4%bd%8d%e5%9c%96%e7%9a%84%e7%89%b9%e6%80%a7-DVpATUNKbi\">\u4f4d\u5716\u7684\u7279\u6027<\/h2>\n<ul>\n<li><strong>\u9ad8\u6548\u5b58\u5132\uff1a<\/strong>\u4f4d\u5716\u80fd\u5920\u4ee5\u6975\u5c0f\u7684\u7a7a\u9593\u5b58\u5132\u5927\u91cf\u7684\u5e03\u723e\u503c\uff0c\u9019\u4f7f\u5f97\u5b83\u5728\u9700\u8981\u8655\u7406\u5927\u91cf\u72c0\u614b\u6642\u975e\u5e38\u6709\u7528\u3002<\/li>\n<li><strong>\u5feb\u901f\u64cd\u4f5c\uff1a<\/strong>\u4f4d\u5716\u7684\u64cd\u4f5c\u901f\u5ea6\u975e\u5e38\u5feb\uff0c\u56e0\u70ba\u5b83\u5011\u76f4\u63a5\u64cd\u4f5c\u4f4d\u800c\u4e0d\u662f\u6574\u500b\u6578\u64da\u7d50\u69cb\u3002<\/li>\n<li><strong>\u7c21\u55ae\u7684 API\uff1a<\/strong>Redis \u63d0\u4f9b\u4e86\u7c21\u55ae\u7684\u547d\u4ee4\u4f86\u64cd\u4f5c\u4f4d\u5716\uff0c\u4f8b\u5982 <code>SETBIT<\/code> \u548c <code>GETBIT<\/code>\u3002<\/li>\n<\/ul>\n<h2 id=\"%e4%bd%8d%e5%9c%96%e7%9a%84%e4%bd%bf%e7%94%a8%e5%a0%b4%e6%99%af-DVpATUNKbi\">\u4f4d\u5716\u7684\u4f7f\u7528\u5834\u666f<\/h2>\n<p>\u4f4d\u5716\u5728\u8a31\u591a\u5834\u666f\u4e2d\u90fd\u80fd\u767c\u63ee\u5176\u7368\u7279\u7684\u512a\u52e2\uff0c\u4ee5\u4e0b\u662f\u4e00\u4e9b\u5e38\u898b\u7684\u61c9\u7528\u6848\u4f8b\uff1a<\/p>\n<h3 id=\"1-%e7%94%a8%e6%88%b6%e6%b4%bb%e8%ba%8d%e5%ba%a6%e8%bf%bd%e8%b9%a4-DVpATUNKbi\">1. \u7528\u6236\u6d3b\u8e8d\u5ea6\u8ffd\u8e64<\/h3>\n<p>\u5728\u793e\u4ea4\u5a92\u9ad4\u6216\u5728\u7dda\u5e73\u53f0\u4e2d\uff0c\u4f4d\u5716\u53ef\u4ee5\u7528\u4f86\u8ffd\u8e64\u7528\u6236\u7684\u6d3b\u8e8d\u72c0\u614b\u3002\u4f8b\u5982\uff0c\u5047\u8a2d\u6211\u5011\u60f3\u8981\u8a18\u9304\u67d0\u500b\u7528\u6236\u5728\u4e00\u500b\u6708\u5167\u7684\u6bcf\u65e5\u767b\u9304\u60c5\u6cc1\uff0c\u6211\u5011\u53ef\u4ee5\u4f7f\u7528\u4f4d\u5716\u4f86\u8868\u793a\u6bcf\u4e00\u5929\u7684\u767b\u9304\u72c0\u614b\u3002\u9019\u6a23\uff0c\u6211\u5011\u53ea\u9700\u4f7f\u7528 30 \u4f4d\u4f86\u8868\u793a 30 \u5929\u7684\u767b\u9304\u60c5\u6cc1\uff0c\u7bc0\u7701\u4e86\u5927\u91cf\u7684\u5b58\u5132\u7a7a\u9593\u3002<\/p>\n<pre><code>SETBIT user:1001:login 0 1  # \u8a2d\u7f6e\u7b2c 0 \u5929\u7684\u767b\u9304\u72c0\u614b\u70ba 1\nSETBIT user:1001:login 1 1  # \u8a2d\u7f6e\u7b2c 1 \u5929\u7684\u767b\u9304\u72c0\u614b\u70ba 1\nGETBIT user:1001:login 0    # \u7372\u53d6\u7b2c 0 \u5929\u7684\u767b\u9304\u72c0\u614b\n<\/code><\/pre>\n<h3 id=\"2-%e6%95%b8%e6%93%9a%e7%b5%b1%e8%a8%88-DVpATUNKbi\">2. \u6578\u64da\u7d71\u8a08<\/h3>\n<p>\u4f4d\u5716\u4e5f\u53ef\u4ee5\u7528\u65bc\u7d71\u8a08\u7279\u5b9a\u4e8b\u4ef6\u7684\u767c\u751f\u6b21\u6578\u3002\u4f8b\u5982\uff0c\u5047\u8a2d\u6211\u5011\u60f3\u8981\u7d71\u8a08\u67d0\u500b\u7db2\u7ad9\u7684\u6bcf\u65e5\u8a2a\u554f\u91cf\uff0c\u6211\u5011\u53ef\u4ee5\u4f7f\u7528\u4f4d\u5716\u4f86\u8a18\u9304\u6bcf\u4e00\u5929\u7684\u8a2a\u554f\u60c5\u6cc1\u3002\u9019\u6a23\uff0c\u6211\u5011\u53ef\u4ee5\u5feb\u901f\u8a08\u7b97\u51fa\u67d0\u6bb5\u6642\u9593\u5167\u7684\u7e3d\u8a2a\u554f\u91cf\u3002<\/p>\n<pre><code>SETBIT visits:2023-10-01 0 1  # \u8a2d\u7f6e 10 \u6708 1 \u65e5\u7684\u8a2a\u554f\u91cf\u70ba 1\nSETBIT visits:2023-10-01 1 1  # 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