{"id":62375,"date":"2024-10-13T18:27:20","date_gmt":"2024-10-13T10:27:20","guid":{"rendered":"https:\/\/server.hk\/cnblog\/62375\/"},"modified":"2024-10-13T18:27:21","modified_gmt":"2024-10-13T10:27:21","slug":"map%e6%b8%85%e7%90%86redis-bitmap%e7%8d%b2%e5%8f%96%e5%85%a7%e5%ad%98%e6%b8%85%e6%bd%94%e5%ba%a6%ef%bc%88%e6%b8%85%e9%99%a4redis-bit%ef%bc%89","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/62375\/","title":{"rendered":"map\u6e05\u7406Redis Bitmap\u7372\u53d6\u5167\u5b58\u6e05\u6f54\u5ea6\uff08\u6e05\u9664redis bit\uff09"},"content":{"rendered":"<h1 id=\"map%e6%b8%85%e7%90%86redis-bitmap%e7%8d%b2%e5%8f%96%e5%85%a7%e5%ad%98%e6%b8%85%e6%bd%94%e5%ba%a6%ef%bc%88%e6%b8%85%e9%99%a4redis-bit%ef%bc%89-DmGIZkJFII\">map\u6e05\u7406Redis Bitmap\u7372\u53d6\u5167\u5b58\u6e05\u6f54\u5ea6\uff08\u6e05\u9664redis bit\uff09<\/h1>\n<p>\u5728\u7576\u4eca\u7684\u6578\u64da\u9a45\u52d5\u4e16\u754c\u4e2d\uff0cRedis\u4f5c\u70ba\u4e00\u7a2e\u9ad8\u6548\u7684\u5167\u5b58\u6578\u64da\u7d50\u69cb\u5b58\u5132\u7cfb\u7d71\uff0c\u5ee3\u6cdb\u61c9\u7528\u65bc\u5404\u7a2e\u5834\u666f\u3002\u7279\u5225\u662f\u5176Bitmap\u529f\u80fd\uff0c\u80fd\u5920\u4ee5\u6975\u5c0f\u7684\u5167\u5b58\u958b\u92b7\u4f86\u5b58\u5132\u5927\u91cf\u7684\u4e8c\u9032\u5236\u6578\u64da\u3002\u7136\u800c\uff0c\u96a8\u8457\u6642\u9593\u7684\u63a8\u79fb\uff0c\u9019\u4e9bBitmap\u53ef\u80fd\u6703\u8b8a\u5f97\u81c3\u816b\uff0c\u5c0e\u81f4\u5167\u5b58\u4f7f\u7528\u6548\u7387\u4e0b\u964d\u3002\u56e0\u6b64\uff0c\u4e86\u89e3\u5982\u4f55\u6e05\u7406Redis Bitmap\u4ee5\u7372\u53d6\u5167\u5b58\u6e05\u6f54\u5ea6\u662f\u975e\u5e38\u91cd\u8981\u7684\u3002<\/p>\n<h2 id=\"%e4%bb%80%e9%ba%bc%e6%98%afredis-bitmap%ef%bc%9f-DmGIZkJFII\">\u4ec0\u9ebc\u662fRedis Bitmap\uff1f<\/h2>\n<p>Redis Bitmap\u662f\u4e00\u7a2e\u7528\u65bc\u8868\u793a\u4e8c\u9032\u5236\u72c0\u614b\u7684\u6578\u64da\u7d50\u69cb\u3002\u5b83\u53ef\u4ee5\u7528\u4f86\u8868\u793a\u5927\u91cf\u7684\u5e03\u723e\u503c\uff0c\u4f8b\u5982\u7528\u6236\u7684\u5728\u7dda\u72c0\u614b\u3001\u6295\u7968\u7d50\u679c\u7b49\u3002\u6bcf\u4e00\u500b\u4f4d\uff08bit\uff09\u90fd\u53ef\u4ee5\u88ab\u8a2d\u7f6e\u70ba0\u62161\uff0c\u9019\u4f7f\u5f97Bitmap\u5728\u5b58\u5132\u548c\u67e5\u8a62\u6642\u975e\u5e38\u9ad8\u6548\u3002<\/p>\n<h2 id=\"bitmap%e7%9a%84%e5%85%a7%e5%ad%98%e7%ae%a1%e7%90%86-DmGIZkJFII\">Bitmap\u7684\u5167\u5b58\u7ba1\u7406<\/h2>\n<p>\u5118\u7ba1Bitmap\u5728\u5167\u5b58\u4f7f\u7528\u4e0a\u975e\u5e38\u9ad8\u6548\uff0c\u4f46\u96a8\u8457\u6578\u64da\u7684\u589e\u9577\uff0c\u5167\u5b58\u7684\u7ba1\u7406\u8b8a\u5f97\u81f3\u95dc\u91cd\u8981\u3002\u7576Bitmap\u4e2d\u7684\u67d0\u4e9b\u4f4d\u4e0d\u518d\u9700\u8981\u6642\uff0c\u9019\u4e9b\u4f4d\u4ecd\u7136\u6703\u4f54\u7528\u5167\u5b58\uff0c\u5c0e\u81f4\u5167\u5b58\u6d6a\u8cbb\u3002\u56e0\u6b64\uff0c\u5b9a\u671f\u6e05\u7406\u4e0d\u5fc5\u8981\u7684\u4f4d\u662f\u4fdd\u6301\u5167\u5b58\u6e05\u6f54\u5ea6\u7684\u95dc\u9375\u3002<\/p>\n<h2 id=\"%e5%a6%82%e4%bd%95%e6%b8%85%e7%90%86redis-bitmap-DmGIZkJFII\">\u5982\u4f55\u6e05\u7406Redis Bitmap<\/h2>\n<p>\u6e05\u7406Redis Bitmap\u7684\u904e\u7a0b\u53ef\u4ee5\u901a\u904e\u4ee5\u4e0b\u5e7e\u500b\u6b65\u9a5f\u4f86\u5be6\u73fe\uff1a<\/p>\n<ul>\n<li><strong>\u8b58\u5225\u4e0d\u5fc5\u8981\u7684\u4f4d\uff1a<\/strong>\u9996\u5148\uff0c\u9700\u8981\u78ba\u5b9a\u54ea\u4e9b\u4f4d\u662f\u591a\u9918\u7684\u3002\u9019\u53ef\u4ee5\u901a\u904e\u696d\u52d9\u908f\u8f2f\u4f86\u5224\u65b7\uff0c\u4f8b\u5982\u7528\u6236\u4e0d\u518d\u6d3b\u8e8d\u7684\u60c5\u6cc1\u3002<\/li>\n<li><strong>\u4f7f\u7528Redis\u547d\u4ee4\uff1a<\/strong>Redis\u63d0\u4f9b\u4e86\u591a\u7a2e\u547d\u4ee4\u4f86\u64cd\u4f5cBitmap\uff0c\u4f8b\u5982SETBIT\u3001GETBIT\u7b49\u3002\u53ef\u4ee5\u4f7f\u7528\u9019\u4e9b\u547d\u4ee4\u4f86\u6e05\u9664\u4e0d\u5fc5\u8981\u7684\u4f4d\u3002<\/li>\n<li><strong>\u5b9a\u671f\u6e05\u7406\uff1a<\/strong>\u5efa\u8b70\u5b9a\u671f\u57f7\u884c\u6e05\u7406\u64cd\u4f5c\uff0c\u4ee5\u4fdd\u6301\u5167\u5b58\u7684\u9ad8\u6548\u4f7f\u7528\u3002\u53ef\u4ee5\u8a2d\u7f6e\u5b9a\u6642\u4efb\u52d9\u4f86\u81ea\u52d5\u57f7\u884c\u9019\u4e9b\u64cd\u4f5c\u3002<\/li>\n<\/ul>\n<h3 id=\"%e7%a4%ba%e4%be%8b%e4%bb%a3%e7%a2%bc-DmGIZkJFII\">\u793a\u4f8b\u4ee3\u78bc<\/h3>\n<p>\u4ee5\u4e0b\u662f\u4e00\u6bb5\u793a\u4f8b\u4ee3\u78bc\uff0c\u5c55\u793a\u5982\u4f55\u4f7f\u7528Redis\u547d\u4ee4\u4f86\u6e05\u7406Bitmap\uff1a<\/p>\n<pre><code>redis-cli SETBIT user:1000:online 0 1  # 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