{"id":27324,"date":"2023-04-28T15:12:22","date_gmt":"2023-04-28T07:12:22","guid":{"rendered":"https:\/\/docs.pingcode.com\/?p=27324"},"modified":"2023-07-31T01:33:22","modified_gmt":"2023-07-30T17:33:22","slug":"%e4%b8%ba%e4%bb%80%e4%b9%88redis%e5%b0%8f%e7%ad%89%e4%ba%8e39%e5%ad%97%e8%8a%82%e7%9a%84%e5%ad%97%e7%ac%a6%e4%b8%b2%e6%98%afembstr%e7%bc%96%e7%a0%81%ef%bc%8c%e5%a4%a7%e4%ba%8e39%e6%98%afraw%e7%bc%96","status":"publish","type":"post","link":"https:\/\/docs.pingcode.com\/ask\/27324.html","title":{"rendered":"\u4e3a\u4ec0\u4e48redis\u5c0f\u7b49\u4e8e39\u5b57\u8282\u7684\u5b57\u7b26\u4e32\u662fembstr\u7f16\u7801\uff0c\u5927\u4e8e39\u662fraw\u7f16\u7801"},"content":{"rendered":"<blockquote class=\"wp-block-quote\">\n<p>redis\u5c0f\u4e8e\u7b49\u4e8e39\u5b57\u8282\u7684\u5b57\u7b26\u4e32\u662fembstr\u7f16\u7801\uff0c\u5927\u4e8e39\u662fraw\u7f16\u7801\u7684\u539f\u56e0\uff1aRedis\u662f\u4e00\u4e2a\u9ad8\u6027\u80fd\u7684\u952e\u503c\u6570\u636e\u5e93\uff0c\u5bf9\u4e8e\u6bcf\u4e2a\u5b57\u7b26\u4e32\u5bf9\u8c61\u90fd\u8981\u5c3d\u53ef\u80fd\u5730\u51cf\u5c0f\u5185\u5b58\u5360\u7528\u5e76\u63d0\u9ad8\u8bbf\u95ee\u901f\u5ea6\uff0c\u56e0\u6b64\uff0cRedis\u5728\u4e0d\u540c\u573a\u666f\u4e0b\u4f7f\u7528\u4e0d\u540c\u7684\u7f16\u7801\u65b9\u5f0f\uff0c\u4ee5\u5b9e\u73b0\u4f18\u5316\u3002<\/p>\n<\/blockquote>\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large\"><img fetchpriority=\"high\" alt=\"\" class=\"wp-image-27329\" decoding=\"async\" height=\"576\" sizes=\"(max-width: 1024px) 100vw, 1024px\" src=\"https:\/\/cdn-docs.pingcode.com\/wp-content\/uploads\/2023\/04\/\u4e3a\u4ec0\u4e48redis\u5c0f\u7b49\u4e8e39\u5b57\u8282\u7684\u5b57\u7b26\u4e32\u662fembstr\u7f16\u7801\uff0c\u5927\u4e8e39\u662fraw\u7f16\u7801-1024x576.png?x-oss-process=image\/auto-orient,1\/format,webp\" srcset=\"https:\/\/cdn-docs.pingcode.com\/wp-content\/uploads\/2023\/04\/\u4e3a\u4ec0\u4e48redis\u5c0f\u7b49\u4e8e39\u5b57\u8282\u7684\u5b57\u7b26\u4e32\u662fembstr\u7f16\u7801\uff0c\u5927\u4e8e39\u662fraw\u7f16\u7801-1024x576.png?x-oss-process=image\/auto-orient,1\/format,webp 1024w, https:\/\/cdn-docs.pingcode.com\/wp-content\/uploads\/2023\/04\/\u4e3a\u4ec0\u4e48redis\u5c0f\u7b49\u4e8e39\u5b57\u8282\u7684\u5b57\u7b26\u4e32\u662fembstr\u7f16\u7801\uff0c\u5927\u4e8e39\u662fraw\u7f16\u7801-300x169.png 300w, https:\/\/cdn-docs.pingcode.com\/wp-content\/uploads\/2023\/04\/\u4e3a\u4ec0\u4e48redis\u5c0f\u7b49\u4e8e39\u5b57\u8282\u7684\u5b57\u7b26\u4e32\u662fembstr\u7f16\u7801\uff0c\u5927\u4e8e39\u662fraw\u7f16\u7801-768x432.png 768w, https:\/\/cdn-docs.pingcode.com\/wp-content\/uploads\/2023\/04\/\u4e3a\u4ec0\u4e48redis\u5c0f\u7b49\u4e8e39\u5b57\u8282\u7684\u5b57\u7b26\u4e32\u662fembstr\u7f16\u7801\uff0c\u5927\u4e8e39\u662fraw\u7f16\u7801-270x152.png 270w, https:\/\/cdn-docs.pingcode.com\/wp-content\/uploads\/2023\/04\/\u4e3a\u4ec0\u4e48redis\u5c0f\u7b49\u4e8e39\u5b57\u8282\u7684\u5b57\u7b26\u4e32\u662fembstr\u7f16\u7801\uff0c\u5927\u4e8e39\u662fraw\u7f16\u7801-1536x865.png 1536w, https:\/\/cdn-docs.pingcode.com\/wp-content\/uploads\/2023\/04\/\u4e3a\u4ec0\u4e48redis\u5c0f\u7b49\u4e8e39\u5b57\u8282\u7684\u5b57\u7b26\u4e32\u662fembstr\u7f16\u7801\uff0c\u5927\u4e8e39\u662fraw\u7f16\u7801.png 1993w\" width=\"1024\"\/><\/figure>\n<\/div>\n<h2 class=\"wp-block-heading\">\u4e00\u3001redis\u5c0f\u4e8e\u7b49\u4e8e39\u5b57\u8282\u7684\u5b57\u7b26\u4e32\u662fembstr\u7f16\u7801\uff0c\u5927\u4e8e39\u662fraw\u7f16\u7801\u7684\u539f\u56e0<\/h2>\n<p>Redis\u8bbe\u8ba1\u65f6\u8003\u8651\u5230\u4e86\u5185\u5b58\u4f7f\u7528\u6548\u7387\u548cCPU\u6548\u7387\u4e4b\u95f4\u7684\u5e73\u8861\u3002\u56e0\u4e3aRedis\u662f\u4e00\u4e2a\u9ad8\u6027\u80fd\u7684\u952e\u503c\u6570\u636e\u5e93\uff0c\u6240\u4ee5\u5bf9\u4e8e\u6bcf\u4e2a\u5b57\u7b26\u4e32\u5bf9\u8c61\u90fd\u8981\u5c3d\u53ef\u80fd\u5730\u51cf\u5c0f\u5185\u5b58\u5360\u7528\u5e76\u63d0\u9ad8\u8bbf\u95ee\u901f\u5ea6\uff0c\u540c\u65f6\u53c8\u8981\u5c3d\u53ef\u80fd\u5730\u51cf\u5c11CPU\u6d88\u8017\u3002<\/p>\n<p>\u56e0\u6b64\uff0cRedis\u9009\u62e9\u4e86\u4e24\u79cd\u4e0d\u540c\u7684\u7f16\u7801\u65b9\u5f0f\uff0c\u5728\u4e0d\u540c\u573a\u666f\u4e0b\u4f7f\u7528\u4e0d\u540c\u7684\u7f16\u7801\u65b9\u5f0f\uff0c\u4ee5\u5b9e\u73b0\u4f18\u5316\u3002<\/p>\n<p>\u5f53\u5b57\u7b26\u4e32\u957f\u5ea6\u5c0f\u4e8e\u7b49\u4e8e39\u5b57\u8282\u65f6\uff0cRedis\u4f7f\u7528embstr\u7f16\u7801\uff0c\u5176\u4e3b\u8981\u539f\u56e0\u5982\u4e0b\uff1a<\/p>\n<ol>\n<li><strong>embstr\u7f16\u7801\u53ef\u4ee5\u51cf\u5c11\u5185\u5b58\u788e\u7247<\/strong>\uff1a\u56e0\u4e3a\u77ed\u5b57\u7b26\u4e32\u5f88\u5e38\u89c1\uff0c\u6307\u5411\u4e00\u4e2a\u8fde\u7eed\u7684\u5b57\u7b26\u6570\u7ec4\u6bd4\u6307\u5411\u4e00\u5757\u8fde\u7eed\u5185\u5b58\u7684\u6307\u9488\u66f4\u52a0\u7d27\u51d1\u3002<\/li>\n<li><strong>embstr\u7f16\u7801\u53ef\u4ee5\u964d\u4f4eCPU\u6d88\u8017<\/strong>\uff1a\u56e0\u4e3a\u5904\u7406\u8f83\u5c0f\u7684\u5b57\u7b26\u4e32\u65f6\u53d1\u751f\u7684\u64cd\u4f5c\u6b21\u6570\u66f4\u5c11\u3002<\/li>\n<li><strong>embstr\u7f16\u7801\u4e5f\u53ef\u4ee5\u8282\u7701\u4e00\u4e9b\u5185\u5b58<\/strong>\uff1a\u56e0\u4e3a\u8fd9\u79cd\u7f16\u7801\u65b9\u5f0f\u4e0d\u9700\u8981\u5206\u914dsds\u7ed3\u6784\u4f53\u3002<\/li>\n<\/ol>\n<p>\u800c\u5f53\u5b57\u7b26\u4e32\u957f\u5ea6\u5927\u4e8e39\u5b57\u8282\u65f6\uff0cRedis\u4f7f\u7528raw\u7f16\u7801\uff0c\u5176\u4e3b\u8981\u539f\u56e0\u5982\u4e0b\uff1a<\/p>\n<ol>\n<li><strong>raw\u7f16\u7801\u53ef\u4ee5\u907f\u514d\u6d6a\u8d39\u5185\u5b58<\/strong>\uff1a\u5982\u679c\u76f4\u63a5\u91c7\u7528embstr\u7f16\u7801\uff0c\u5b57\u7b26\u4e32\u5bf9\u8c61\u7684\u5185\u5b58\u7a7a\u95f4\u53ef\u80fd\u4f1a\u5728\u540e\u7eed\u64cd\u4f5c\u4e2d\u88ab\u91cd\u65b0\u5206\u914d\uff0c\u5bfc\u81f4\u5185\u5b58\u6d6a\u8d39\u3002<\/li>\n<li><strong>raw\u7f16\u7801\u53ef\u4ee5\u5904\u7406\u66f4\u957f\u7684\u5b57\u7b26\u4e32<\/strong>\uff1a\u8fc7\u957f\u7684embstr\u7f16\u7801\u5b57\u7b26\u4e32\u53ef\u80fd\u4f1a\u5bfc\u81f4\u5185\u5b58\u788e\u7247\u3002<\/li>\n<\/ol>\n<p>\u7efc\u4e0a\u6240\u8ff0\uff0cRedis\u4e2d\u4f7f\u7528\u4e24\u79cd\u4e0d\u540c\u7684\u7f16\u7801\u65b9\u5f0f\u4e3b\u8981\u662f\u4e3a\u4e86\u5e73\u8861\u5185\u5b58\u548cCPU\u7684\u6027\u80fd\uff0c\u5e76\u5728\u4e0d\u540c\u7684\u573a\u666f\u4e0b\u83b7\u5f97\u66f4\u597d\u7684\u6027\u80fd\u3002<\/p>\n<p>Redis\u7684embstr\u7f16\u7801\u65b9\u5f0f\u548craw\u7f16\u7801\u65b9\u5f0f\u4ee539\u5b57\u8282\u4e3a\u5206\u754c\u662f\u57283.0\u7248\u672c\u4e4b\u524d\uff0c\u800c\u57283.2\u7248\u672c\u4e4b\u540e\uff0c\u53d8\u6210\u4e86\u4ee544\u5b57\u8282\u4e3a\u5206\u754c\uff0c\u4e5f\u5c31\u662f\u8bf4\uff0c\u5982\u679c\u4e00\u4e2a\u5b57\u7b26\u4e32\u503c\u7684\u957f\u5ea6\u5c0f\u4e8e\u7b49\u4e8e44\u5b57\u8282\uff0c\u5219\u6309\u7167embstr\u8fdb\u884c\u7f16\u7801\uff0c\u5426\u5219\u6309\u7167raw\u8fdb\u884c\u7f16\u7801\u3002\u51fa\u73b0\u8fd9\u79cd\u53d8\u5316\u662f\u56e0\u4e3a\uff0c\u9488\u5bf9\u77ed\u5b57\u7b26\u4e32\u7684embstr\u4f7f\u7528\u6700\u5c0f\u7684sdshdr8\uff0c\u800csdshdr8\u4e0e\u4e4b\u524d\u7684sdshdr\u76f8\u6bd4\u6b63\u597d\u51cf\u5c11\u4e865\u4e2a\u5b57\u8282\uff08sdsdr8 = uint8_t * 2 + char = 1*2+1 = 3, sdshdr = unsigned int * 2 = 4 * 2 = 8\uff09\uff0c\u6240\u4ee5\u5176\u80fd\u5bb9\u7eb3\u7684\u5b57\u7b26\u4e32\u957f\u5ea6\u589e\u52a0\u4e865\u4e2a\u5b57\u8282\u53d8\u6210\u4e8644\u3002<\/p>\n<h2 class=\"wp-block-heading\">\u4e8c\u3001Redis\u7b80\u4ecb<\/h2>\n<h3 class=\"wp-block-heading\">1\u3001\u6982\u8ff0<\/h3>\n<p>\u5728\u6211\u4eec\u65e5\u5e38\u7684Java Web\u5f00\u53d1\u4e2d\uff0c\u65e0\u4e0d\u90fd\u662f\u4f7f\u7528\u6570\u636e\u5e93\u6765\u8fdb\u884c\u6570\u636e\u7684\u5b58\u50a8\uff0c\u7531\u4e8e\u4e00\u822c\u7684\u7cfb\u7edf\u4efb\u52a1\u4e2d\u901a\u5e38\u4e0d\u4f1a\u5b58\u5728\u9ad8\u5e76\u53d1\u7684\u60c5\u51b5\uff0c\u6240\u4ee5\u8fd9\u6837\u770b\u8d77\u6765\u5e76\u6ca1\u6709\u4ec0\u4e48\u95ee\u9898\uff0c\u53ef\u662f\u4e00\u65e6\u6d89\u53ca\u5927\u6570\u636e\u91cf\u7684\u9700\u6c42\uff0c\u6bd4\u5982\u4e00\u4e9b\u5546\u54c1\u62a2\u8d2d\u7684\u60c5\u666f\uff0c\u6216\u8005\u662f\u4e3b\u9875\u8bbf\u95ee\u91cf\u77ac\u95f4\u8f83\u5927\u7684\u65f6\u5019\uff0c\u5355\u4e00\u4f7f\u7528\u6570\u636e\u5e93\u6765\u4fdd\u5b58\u6570\u636e\u7684\u7cfb\u7edf\u4f1a\u56e0\u4e3a\u9762\u5411\u78c1\u76d8\uff0c\u78c1\u76d8\u8bfb\/\u5199\u901f\u5ea6\u6bd4\u8f83\u6162\u7684\u95ee\u9898\u800c\u5b58\u5728\u4e25\u91cd\u7684\u6027\u80fd\u5f0a\u7aef\uff0c\u4e00\u77ac\u95f4\u6210\u5343\u4e0a\u4e07\u7684\u8bf7\u6c42\u5230\u6765\uff0c\u9700\u8981\u7cfb\u7edf\u5728\u6781\u77ed\u7684\u65f6\u95f4\u5185\u5b8c\u6210\u6210\u5343\u4e0a\u4e07\u6b21\u7684\u8bfb\/\u5199\u64cd\u4f5c\uff0c\u8fd9\u4e2a\u65f6\u5019\u5f80\u5f80\u4e0d\u662f\u6570\u636e\u5e93\u80fd\u591f\u627f\u53d7\u7684\uff0c\u6781\u5176\u5bb9\u6613\u9020\u6210\u6570\u636e\u5e93\u7cfb\u7edf\u762b\u75ea\uff0c\u6700\u7ec8\u5bfc\u81f4\u670d\u52a1\u5b95\u673a\u7684\u4e25\u91cd\u751f\u4ea7\u95ee\u9898\u3002<\/p>\n<h3 class=\"wp-block-heading\">2\u3001NoSQL \u6280\u672f<\/h3>\n<p>\u4e3a\u4e86\u514b\u670d\u4e0a\u8ff0\u7684\u95ee\u9898\uff0cJava Web\u9879\u76ee\u901a\u5e38\u4f1a\u5f15\u5165NoSQL\u6280\u672f\uff0c\u8fd9\u662f\u4e00\u79cd\u57fa\u4e8e\u5185\u5b58\u7684\u6570\u636e\u5e93\uff0c\u5e76\u4e14\u63d0\u4f9b\u4e00\u5b9a\u7684\u6301\u4e45\u5316\u529f\u80fd\u3002Redis\u548cMongoDB\u662f\u5f53\u524d\u4f7f\u7528\u8f83\u5e7f\u6cdb\u7684NoSQL\uff0c\u800c\u5c31Redis\u6280\u672f\u800c\u8a00\uff0c\u5b83\u7684\u6027\u80fd\u5341\u5206\u4f18\u8d8a\uff0c\u53ef\u4ee5\u652f\u6301\u6bcf\u79d2\u5341\u51e0\u4e07\u6b64\u7684\u8bfb\/\u5199\u64cd\u4f5c\uff0c\u5176\u6027\u80fd\u8fdc\u8d85\u6570\u636e\u5e93\uff0c\u5e76\u4e14\u8fd8\u652f\u6301\u96c6\u7fa4\u3001\u5206\u5e03\u5f0f\u3001\u4e3b\u4ece\u540c\u6b65\u7b49\u914d\u7f6e\uff0c\u539f\u5219\u4e0a\u53ef\u4ee5\u65e0\u9650\u6269\u5c55\uff0c\u8ba9\u66f4\u591a\u7684\u6570\u636e\u5b58\u50a8\u5728\u5185\u5b58\u4e2d\uff0c\u66f4\u8ba9\u4eba\u6b23\u6170\u7684\u662f\u5b83\u8fd8\u652f\u6301\u4e00\u5b9a\u7684\u4e8b\u52a1\u80fd\u529b\uff0c\u8fd9\u4fdd\u8bc1\u4e86\u9ad8\u5e76\u53d1\u7684\u573a\u666f\u4e0b\u6570\u636e\u7684\u5b89\u5168\u548c\u4e00\u81f4\u6027\u3002<\/p>\n<h3 class=\"wp-block-heading\">3\u3001Redis \u5728 Java Web \u4e2d\u7684\u5e94\u7528<\/h3>\n<p>Redis \u5728 Java Web \u4e3b\u8981\u6709\u4e24\u4e2a\u5e94\u7528\u573a\u666f\uff1a<\/p>\n<ul>\n<li>\u5b58\u50a8\u7f13\u5b58\u7528\u7684\u6570\u636e\uff1b<\/li>\n<li>\u9700\u8981\u9ad8\u901f\u8bfb\/\u5199\u7684\u573a\u5408\u4f7f\u7528\u5b83\u5feb\u901f\u8bfb\/\u5199\u3002<\/li>\n<\/ul>\n<h3 class=\"wp-block-heading\">4\u3001\u7f13\u5b58<\/h3>\n<p>\u5728\u65e5\u5e38\u5bf9\u6570\u636e\u5e93\u7684\u8bbf\u95ee\u4e2d\uff0c\u8bfb\u64cd\u4f5c\u7684\u6b21\u6570\u8fdc\u8d85\u5199\u64cd\u4f5c\uff0c\u6bd4\u4f8b\u5927\u6982\u5728 1:9 \u5230 3:7\uff0c\u6240\u4ee5\u9700\u8981\u8bfb\u7684\u53ef\u80fd\u6027\u662f\u6bd4\u5199\u7684\u53ef\u80fd\u5927\u5f97\u591a\u7684\u3002\u5f53\u6211\u4eec\u4f7f\u7528SQL\u8bed\u53e5\u53bb\u6570\u636e\u5e93\u8fdb\u884c\u8bfb\u5199\u64cd\u4f5c\u65f6\uff0c\u6570\u636e\u5e93\u5c31\u4f1a\u53bb\u78c1\u76d8\u628a\u5bf9\u5e94\u7684\u6570\u636e\u7d22\u5f15\u53d6\u56de\u6765\uff0c\u8fd9\u662f\u4e00\u4e2a\u76f8\u5bf9\u8f83\u6162\u7684\u8fc7\u7a0b\u3002<\/p>\n<p>\u5982\u679c\u6211\u4eec\u628a\u6570\u636e\u653e\u5728 Redis 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Redis \u6765\u5904\u7406\u65e5\u5e38\u4e2d\u9700\u8981\u7ecf\u5e38\u8bfb\u53d6\u7684\u6570\u636e\uff0c\u901f\u5ea6\u63d0\u5347\u662f\u663e\u800c\u6613\u89c1\u7684\uff0c\u540c\u65f6\u4e5f\u964d\u4f4e\u4e86\u5bf9\u6570\u636e\u5e93\u7684\u4f9d\u8d56\uff0c\u4f7f\u5f97\u6570\u636e\u5e93\u7684\u538b\u529b\u5927\u5927\u51cf\u5c11\u3002<\/p>\n<h3 class=\"wp-block-heading\">5\u3001\u9ad8\u901f\u8bfb\/\u5199\u7684\u573a\u5408<\/h3>\n<p>\u5728\u5982\u4eca\u7684\u4e92\u8054\u7f51\u4e2d\uff0c\u8d8a\u6765\u8d8a\u591a\u7684\u5b58\u5728\u9ad8\u5e76\u53d1\u7684\u60c5\u51b5\uff0c\u6bd4\u5982\u5929\u732b\u53cc11\u3001\u62a2\u7ea2\u5305\u3001\u62a2\u6f14\u5531\u4f1a\u95e8\u7968\u7b49\uff0c\u8fd9\u4e9b\u573a\u5408\u90fd\u662f\u5728\u67d0\u4e00\u4e2a\u77ac\u95f4\u6216\u8005\u662f\u67d0\u4e00\u4e2a\u77ed\u6682\u7684\u65f6\u523b\u6709\u6210\u5343\u4e0a\u4e07\u7684\u8bf7\u6c42\u5230\u8fbe\u670d\u52a1\u5668\uff0c\u5982\u679c\u5355\u7eaf\u7684\u4f7f\u7528\u6570\u636e\u5e93\u6765\u8fdb\u884c\u5904\u7406\uff0c\u5c31\u7b97\u4e0d\u5d29\uff0c\u4e5f\u4f1a\u5f88\u6162\u7684\uff0c\u8f7b\u5219\u9020\u6210\u7528\u6237\u4f53\u9a8c\u6781\u5dee\u7528\u6237\u91cf\u6d41\u5931\uff0c\u91cd\u5219\u6570\u636e\u5e93\u762b\u75ea\uff0c\u670d\u52a1\u5b95\u673a\uff0c\u800c\u8fd9\u6837\u7684\u573a\u5408\u90fd\u662f\u4e0d\u5141\u8bb8\u7684\u3002<\/p>\n<p>\u6240\u4ee5\u6211\u4eec\u9700\u8981\u4f7f\u7528 Redis \u6765\u5e94\u5bf9\u8fd9\u6837\u7684\u9ad8\u5e76\u53d1\u9700\u6c42\u7684\u573a\u5408\uff0c\u5177\u4f53\u6b65\u9aa4\u4e3a\uff1a<\/p>\n<ul>\n<li>\u5f53\u4e00\u4e2a\u8bf7\u6c42\u5230\u8fbe\u670d\u52a1\u5668\u65f6\uff0c\u53ea\u662f\u628a\u4e1a\u52a1\u6570\u636e\u5728 Redis \u4e0a\u8fdb\u884c\u8bfb\u5199\uff0c\u800c\u6ca1\u6709\u5bf9\u6570\u636e\u5e93\u8fdb\u884c\u4efb\u4f55\u7684\u64cd\u4f5c\uff0c\u8fd9\u6837\u5c31\u80fd\u5927\u5927\u63d0\u9ad8\u8bfb\u5199\u7684\u901f\u5ea6\uff0c\u4ece\u800c\u6ee1\u8db3\u9ad8\u901f\u54cd\u5e94\u7684\u9700\u6c42\uff1b<\/li>\n<li>\u4f46\u662f\u8fd9\u4e9b\u7f13\u5b58\u7684\u6570\u636e\u4ecd\u7136\u9700\u8981\u6301\u4e45\u5316\uff0c\u4e5f\u5c31\u662f\u5b58\u5165\u6570\u636e\u5e93\u4e4b\u4e2d\uff0c\u6240\u4ee5\u5728\u4e00\u4e2a\u8bf7\u6c42\u64cd\u4f5c\u5b8c Redis 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