{"id":420120,"date":"2021-04-01T08:15:36","date_gmt":"2021-04-01T00:15:36","guid":{"rendered":"http:\/\/4563.org\/?p=420120"},"modified":"2021-04-01T08:15:36","modified_gmt":"2021-04-01T00:15:36","slug":"%e6%8a%80%e6%9c%af%e6%8f%ad%e7%a7%98-%e5%a6%82%e4%bd%95%e8%ae%be%e8%ae%a1-rqdata-%e9%80%9a%e8%ae%af%e5%8d%8f%e8%ae%ae","status":"publish","type":"post","link":"http:\/\/4563.org\/?p=420120","title":{"rendered":"\u6280\u672f\u63ed\u79d8 | \u5982\u4f55\u8bbe\u8ba1 RQData \u901a\u8baf\u534f\u8bae"},"content":{"rendered":"<div>\n<div>\n<div>\n<h1>                  \u6280\u672f\u63ed\u79d8 | \u5982\u4f55\u8bbe\u8ba1 RQData \u901a\u8baf\u534f\u8bae               <\/h1>\n<p> <\/p>\n<div>\n<div> <span>\u8cc7\u6df1\u5927\u4f6c : thinkingmind <\/span>  <span><i><\/i> 0<\/span> <\/div>\n<div> <\/div>\n<\/p><\/div>\n<\/p><\/div>\n<\/p><\/div>\n<div isfirst=\"1\"> <\/p>\n<p>\u524d\u9762\u6211\u4eec\u4ecb\u7ecd\u4e86 RQData \u5982\u4f55\u7528 Asyncio \u6765\u63d0\u9ad8\u670d\u52a1\u7aef\u6027\u80fd\uff0c\u8fd9\u6b21\u6211\u4eec<strong>\u4ecb\u7ecd\u4e00\u4e0b RQData \u7684\u901a\u8baf\u534f\u8bae\uff0c\u901a\u8fc7\u5bf9\u6bd4 RQData \u7684\u901a\u8baf\u534f\u8bae\u548c\u4e00\u4e9b\u5e38\u7528\u7a0b\u5e8f\u7684\u901a\u8baf\u534f\u8bae\uff0c\u770b\u770b\u5982\u4f55\u8bbe\u8ba1\u4e00\u4e2a\u5408\u9002\u7684\u901a\u8baf\u534f\u8bae\u3002<\/strong><\/p>\n<p>\u4e92\u8054\u7f51\u4e0a\u4e24\u53f0\u8ba1\u7b97\u673a\u8fdb\u884c\u901a\u8baf\u7684\u57fa\u7840\u662f\u7f51\u7edc\u4f20\u8f93\u534f\u8bae\u2014\u2014\u6570\u636e\u5728\u7f51\u7edc\u4e0a\u4ee5\u5b57\u8282\u6d41\u7684\u5f62\u5f0f\u4ece\u4e00\u53f0\u8ba1\u7b97\u673a\u4f20\u8f93\u5230\u53e6\u4e00\u53f0\u8ba1\u7b97\u673a\uff0c\u5982\u679c\u6ca1\u6709\u53cc\u65b9\u7ea6\u5b9a\u597d\u7684\u534f\u8bae\uff0c\u5c31\u65e0\u6cd5\u5c06\u6570\u636e\u6d41\u91cd\u5851\u6210\u6211\u4eec\u9700\u8981\u7684\u6570\u636e\u7ed3\u6784\u3002\u8fd9\u5c31\u50cf\u662f\u4e00\u4e2a\u5bb6\u957f\u62c6\u4e86\u4e00\u4e2a\u7528\u79ef\u6728\u642d\u6210\u7684\u57ce\u5821\uff0c\u7136\u540e\u628a\u4e00\u4e2a\u4e00\u4e2a\u79ef\u6728\u9012\u7ed9\u5c0f\u5b69\u5b50\uff0c\u5c0f\u5b69\u5b50\u6839\u636e\u8bb0\u5fc6\u7528\u8fd9\u4e9b\u79ef\u6728\u628a\u57ce\u5821\u518d\u91cd\u65b0\u642d\u8d77\u6765\u3002\u4e0a\u8ff0\u8fc7\u7a0b\u5c31\u662f\u901a\u8baf\u534f\u8bae\u6d89\u53ca\u7684\u5185\u5bb9\uff0c\u4e5f\u662f\u6211\u4eec\u5728\u8ba8\u8bba\u901a\u8baf\u534f\u8bae\u6240\u9700\u8981\u5173\u5fc3\u7684\u4e8b\u3002<\/p>\n<h1><strong>\u80cc\u666f\u77e5\u8bc6<\/strong><\/h1>\n<p> <\/p>\n<p>\u8bb2\u89e3\u901a\u8baf\u534f\u8bae\u4e4b\u524d\uff0c\u6211\u4eec\u5148\u4ecb\u7ecd\u4e00\u4e0b\u8ba1\u7b97\u673a\u662f\u5982\u4f55\u5b58\u50a8\u6570\u636e\u7684\u3002<\/p>\n<p>\u8ba1\u7b97\u673a\u6700\u5c0f\u7684\u5b58\u50a8\u5355\u4f4d\u662f\u6bd4\u7279\uff08 bit \uff09\uff0c\u4e00\u4e2a\u6bd4\u7279\u6709\u4e24\u79cd\u72b6\u6001\u2014\u20141 \u548c 0 \u3002\u8ba1\u7b97\u673a\u91cc\u5927\u90e8\u5206\u90e8\u4ef6\u662f\u7528\u6676\u4f53\u7ba1\u7ec4\u6210\u7684\uff0c\u6676\u4f53\u7ba1\u6709\u5bfc\u901a\u548c\u622a\u6b62\u4e24\u79cd\u72b6\u6001\uff0c\u5728\u6570\u5b57\u7535\u8def\u91cc\u5206\u522b\u8868\u793a 1 \u548c 0 \u3002\u516b\u4e2a\u6bd4\u7279\u662f\u4e00\u4e2a\u5b57\u8282\uff08 byte \uff09\uff0c\u4e00\u4e2a\u5b57\u8282\u662f\u5927\u591a\u6570\u8ba1\u7b97\u673a\u8bed\u8a00\u80fd\u5904\u7406\u6570\u636e\u7684\u6700\u5c0f\u5355\u4f4d \u30021 \u4e2a\u5b57\u8282\u80fd\u8868\u793a\u7684\u65e0\u7b26\u53f7\u6574\u578b\u8303\u56f4\u662f 0-255 \uff08 2 \u7684 8 \u6b21\u65b9\uff09\uff0c\u5982\u679c\u5927\u4e8e 255 \u5c31\u9700\u8981\u7528 2 \u4e2a\u5b57\u8282\u6765\u8868\u793a\uff0c\u8fd9\u65f6 2 \u4e2a\u5b57\u8282\u5c31\u6709\u4e86\u5148\u540e\u6392\u5e8f\u7684\u9009\u62e9\uff1a\u5047\u5982 2 \u4e2a\u5b57\u8282\u7684\u591a\u4f4d\u6570\u4e2d\uff0c\u4f4e\u4f4d\u653e\u5728\u8f83\u5c0f\u7684\u4f4d\u7f6e\u4e0a\uff0c\u9ad8\u4f4d\u653e\u5728\u8f83\u5927\u7684\u4f4d\u7f6e\u4e0a\uff0c\u79f0\u4e3a\u5c0f\u7aef\u6392\u5e8f\uff0c\u53cd\u4e4b\u662f\u5927\u7aef\u6392\u5e8f\u3002\u6bd4\u5982\u8bf4 65280 \u9700\u8981\u7528 11111111 \u548c 00000000 \u8868\u793a\uff0c\u5982\u679c\u8868\u793a\u4e3a 1111111100000000 \u5c31\u662f\u5c0f\u7aef\u6392\u5e8f\uff0c0000000011111111 \u5c31\u662f\u5927\u7aef\u6392\u5e8f\u3002\u7f51\u7edc\u4f20\u8f93\u4e00\u822c\u90fd\u662f\u7528\u5927\u7aef\u6392\u5e8f\uff0c\u6240\u4ee5\u5927\u7aef\u6392\u5e8f\u4e5f\u88ab\u79f0\u4e3a\u7f51\u7edc\u5e8f\u3002<\/p>\n<p>\u7a0b\u5e8f\u4e2d\u7684\u5bf9\u8c61\u9700\u8981\u8f6c\u53d8\u4e3a\u6709\u610f\u4e49\u7684\u5b57\u8282\u5e8f\u5217\uff08\u7c7b\u4f3c\u4e8e\u57ce\u5821\u5230\u79ef\u6728\u7684\u8fc7\u7a0b\uff09\u624d\u80fd\u5728\u7f51\u7edc\u4e2d\u4f20\u8f93\uff0c\u4e4b\u540e\u5b57\u8282\u5e8f\u5217\u88ab\u63a5\u6536\u7aef\u53cd\u8f6c\u6210\u4e3a\u4e00\u4e2a\u76f8\u540c\u7684\u5bf9\u8c61\uff08\u7c7b\u4f3c\u4e8e\u79ef\u6728\u5230\u57ce\u5821\u7684\u8fc7\u7a0b\uff09\uff0c\u5bf9\u8c61\u8f6c\u4e3a\u5b57\u8282\u5e8f\u5217\u7684\u8fd9\u4e2a\u8fc7\u7a0b\u79f0\u4e3a\u5e8f\u5217\u5316\uff0c\u4e5f\u88ab\u79f0\u4e3a\u7f16\u7801\uff0c\u5b57\u8282\u5e8f\u5217\u8f6c\u53d8\u56de\u5bf9\u8c61\u7684\u8fc7\u7a0b\u79f0\u4e3a\u53cd\u5e8f\u5217\u5316\uff0c\u4e5f\u5e38\u88ab\u79f0\u4e3a\u89e3\u7801\u3002<\/p>\n<p>\u7edf\u4e00\u89e3\u51b3\u5e8f\u5217\u5316 \/\u53cd\u5e8f\u5217\u5316\u4ee5\u53ca\u6570\u636e\u4f20\u8f93\u95ee\u9898\u7684\u5de5\u5177\u5c31\u662f\u901a\u8baf\u534f\u8bae\u3002\u56e0\u6b64\uff0c\u6211\u4eec\u5728\u5173\u6ce8\u901a\u8baf\u534f\u8bae\u7684\u65f6\u5019\u4e3b\u8981\u5173\u6ce8\u4e24\u4e2a\u65b9\u9762\uff1a<\/p>\n<ul>\n<li>\u5e8f\u5217\u5316\u534f\u8bae\u662f\u600e\u4e48\u505a\u7684\uff1b<\/li>\n<li>\u5728\u8fde\u63a5\u4e2d\uff0c\u6d88\u606f\u600e\u4e48\u4f20\u8f93\u7684\u3002<\/li>\n<\/ul>\n<p>\u63a5\u4e0b\u6765\u6211\u4eec\u5c31\u6765\u770b\u770b\u51e0\u4e2a\u5e38\u7528\u7684\u8f6f\u4ef6\u662f\u600e\u4e48\u5904\u7406\u8fd9\u4e24\u65b9\u9762\u5185\u5bb9\u7684\u3002 <\/p>\n<h2><strong>Redis<\/strong><\/h2>\n<p>Redis \u662f\u4e00\u4e2a\u5e94\u7528\u975e\u5e38\u5e7f\u6cdb\u7684\u5185\u5b58\u6570\u636e\u5e93\uff0c\u662f\u73b0\u5728\u6700\u6d41\u884c\u7684\u952e\u503c\u5bf9\u5b58\u50a8\u6570\u636e\u5e93\u4e4b\u4e00\u3002Redis \u6709 5 \u79cd\u57fa\u672c\u7684\u6570\u636e\u7ed3\u6784\uff0c\u5206\u522b\u662f\u5b57\u7b26\u4e32\u3001\u5217\u8868\u3001\u54c8\u5e0c\u8868\u3001\u65e0\u5e8f\u96c6\u5408\u548c\u6709\u5e8f\u96c6\u5408\u3002\u63a5\u4e0b\u6765\u6211\u4eec\u4ece\u5e8f\u5217\u5316\u534f\u8bae\u548c\u4f20\u8f93\u534f\u8bae\u4e24\u65b9\u9762\u6765\u5206\u6790\u4e00\u4e0b Redis \u662f\u5982\u4f55\u4f20\u8f93\u8fd9\u4e9b\u6570\u636e\u7ed3\u6784\u7684\u3002<\/p>\n<h3><strong>\u5e8f\u5217\u5316\u534f\u8bae<\/strong><\/h3>\n<p>Redis \u7684\u901a\u8baf\u534f\u8bae\u8bbe\u8ba1\u4e0a\u662f\u53ef\u9605\u8bfb\u7684\uff0c\u5b83\u901a\u8fc7 CRLF \uff08\u4e5f\u5c31\u662f word \u4e2d\u7684\u56de\u8f66\u7b26\uff0c\u5b57\u7b26\u4e32\u8868\u793a\u4e3a <code>\u201crn\u201d<\/code>\uff09\u6765\u5206\u9694\u4e0d\u540c\u7684\u53c2\u6570\u3002Redis \u7684\u5e8f\u5217\u5316\u534f\u8bae\u662f\u81ea\u5df1\u5b9a\u5236\u7684\uff0c\u901a\u8fc7\u7b2c\u4e00\u4e2a\u5b57\u7b26\u6765\u8868\u660e\u8fd4\u56de\u7684\u7c7b\u578b\uff0c\u5e8f\u5217\u5316\u7684\u6570\u636e\u7ed3\u6784\u652f\u6301\u4ee5\u4e0b\u7c7b\u578b\uff1a<\/p>\n<ul>\n<li>\u5355\u884c\u5b57\u7b26\u4e32\uff1a\u8fd4\u56de\u7684\u7b2c\u4e00\u4e2a\u5b57\u8282\u662f \u201c+\u201d ;<\/li>\n<li>\u591a\u884c\u5b57\u7b26\u4e32\uff1a\u8fd4\u56de\u7684\u7b2c\u4e00\u4e2a\u5b57\u8282\u662f \u201c$\u201d ;<\/li>\n<li>\u9519\u8bef\u4fe1\u606f\uff1a\u8fd4\u56de\u7684\u7b2c\u4e00\u4e2a\u5b57\u8282\u662f \u201c-\u201d ;<\/li>\n<li>\u6574\u5f62\u6570\u5b57\uff1a\u8fd4\u56de\u7684\u7b2c\u4e00\u4e2a\u5b57\u8282\u662f\u201c : \u201d ;<\/li>\n<li>\u6570\u7ec4\uff1a\u8fd4\u56de\u7684\u7b2c\u4e00\u4e2a\u5b57\u8282\u662f\u201c * \u201d\u3002<\/li>\n<\/ul>\n<p>\u63a5\u4e0b\u6765\u5177\u4f53\u4ecb\u7ecd\u4e00\u4e0b\u4e0a\u8ff0\u6570\u636e\u7ed3\u6784\u7c7b\u578b\u3002<\/p>\n<h4><strong>01 \u5b57\u7b26\u4e32<\/strong><\/h4>\n<p>\u4e00\u4e2a\u7b80\u5355\u7684\u5b57\u7b26\u4e32\u56de\u590d\u662f <code>\u201c+OKrn\u201d<\/code>\uff0c\u5355\u884c\u5b57\u7b26\u4e32\u4ec5\u8868\u793a\u72b6\u6001\uff0c\u6bd4\u5982\u8bf4\u4e00\u4e2a\u952e\u503c\u6210\u529f\u8fd4\u56de OK \u7684\u8bbe\u7f6e\u5c31\u4f1a\u4f7f\u7528\u5355\u884c\u5b57\u7b26\u4e32\u3002\u5982\u679c\u5b57\u7b26\u4e32\u590d\u6742\u6216\u542b\u6709 rn \u5b57\u7b26\uff0cRedis \u5219\u4f1a\u901a\u8fc7\u591a\u884c\u5b57\u7b26\u4e32\u56de\u590d\uff0c\u4e00\u4e2a\u591a\u884c\u5b57\u7b26\u4e32\u6709\u5982\u4e0b\u7ed3\u6784 <code>\u201c $6rnfoobarrn \u201d<\/code>\uff0c\u4e00\u4e2a $ \u540e\u9762\u8ddf\u7740\u4e00\u4e2a\u6570\u5b57\u6765\u8868\u793a\u5b57\u7b26\u4e32\u7684\u957f\u5ea6\uff0c\u6570\u5b57\u548c\u5b57\u7b26\u4e32\u7684\u5185\u5bb9\u4ee5 CRLF \u5206\u5272\uff0c\u6700\u540e\u4ecd\u65e7\u4ee5\u4e00\u4e2a CRLF \u7ed3\u675f\u3002\u7a7a\u5b57\u7b26\u4e32\u957f\u5ea6\u4e3a 0\uff0c\u8868\u793a\u4e3a <code>\u201c$0rnrn\u201d<\/code>\u3002\u6b64\u5916\uff0c\u5f53\u591a\u884c\u5b57\u7b26\u4e32\u957f\u5ea6\u4e3a -1\uff0c\u4e14\u53ea\u6709\u4e00\u4e2a CRLF \u65f6\uff0c\u7279\u6b8a\u5730\u8868\u793a\u4e3a NULL \uff08\u65e0\u503c\uff09\uff0c\u683c\u5f0f\u662f<code> \u201c$-1rn\u201d<\/code>\u3002<\/p>\n<h4><strong>02 \u9519\u8bef<\/strong><\/h4>\n<p>\u5982\u679c\u51fa\u73b0\u9519\u8bef\uff0c\u8fd4\u56de\u7684\u7b2c\u4e00\u4e2a\u5b57\u7b26\u662f -, \u63a5\u7740\u7684\u4e00\u884c\u5185\u5bb9\u662f\u9519\u8bef\u7684\u63cf\u8ff0, \u901a\u5e38\u7528\u7a7a\u683c\u533a\u5206\u9519\u8bef\u7c7b\u578b\u548c\u9519\u8bef\u63cf\u8ff0, \u6bd4\u5982 <code>\u201c-WRONGTYPE Operation against a key holding the wrong kind of value\u201d<\/code>, \u8868\u793a\u8bf7\u6c42\u7684\u952e\u503c\u5bf9\u5e94\u7684\u7c7b\u578b\u4e0d\u662f\u671f\u671b\u7684\u7c7b\u578b\u3002<\/p>\n<h4><strong>03 \u6574\u5f62\u6570\u5b57<\/strong><\/h4>\n<p>\u8fd4\u56de\u7c7b\u578b\u662f\u6570\u5b57\u65f6\uff0c\u7b2c\u4e00\u4e2a\u5b57\u7b26\u662f<code>:<\/code>\uff0c\u4ee5 CRLF \u7ed3\u5c3e\uff0c\u4ee5\u5b57\u7b26\u4e32\u8868\u793a\u800c\u975e\u4e8c\u8fdb\u5236\u3002\u6bd4\u5982<code> \u201c:0rn\u201d<\/code>\u548c<code>\u201c:512rn\u201d <\/code>\u90fd\u662f\u6574\u6570\u56de\u590d\u3002\u6574\u5f62 0 \u548c 1 \u4e5f\u88ab\u5e7f\u6cdb\u5730\u7528\u4e8e\u8868\u793a\u903b\u8f91\u771f\u548c\u903b\u8f91\u5047\uff0c\u6bd4\u5982\u8bf4\u5224\u65ad\u4e00\u4e2a\u952e\u503c\u5b58\u4e0d\u5b58\u5728\uff0c\u5c31\u901a\u8fc7\u8fd4\u56de\u201c 0 \u201d\u8868\u793a\u4e0d\u5b58\u5728\uff0c\u8fd4\u56de\u201c 1 \u201d\u8868\u793a\u5b58\u5728\u3002<\/p>\n<h4><strong>04 \u6570\u7ec4<\/strong><\/h4>\n<p>\u8fd4\u56de\u7c7b\u578b\u4e3a\u6570\u7ec4\u65f6\uff0c\u7b2c\u4e00\u4e2a\u5b57\u7b26\u662f<code> *<\/code>\uff0c\u7d27\u63a5\u7740\u662f\u6570\u7ec4\u7684\u957f\u5ea6 n\uff0c\u63a5\u4e0b\u6765\u5c31\u662f n \u7684\u5177\u4f53\u5185\u5bb9 \u2014\u2014n \u4e2a\u4e0a\u8ff0\u63d0\u5230\u7684\u591a\u4e2a\u7c7b\u578b\u7684\u6570\u636e\u3002\u4e00\u4e2a\u5305\u542b\u6574\u5f62\u548c\u5b57\u7b26\u4e32\u7684 2 \u4e2a\u5143\u7d20\u7684\u6570\u7ec4\u4f8b\u5b50\u5982\u4e0b\uff08\u591a\u884c\u7ed3\u5c3e\u7701\u7565 CRLF \uff09\uff1a<\/p>\n<pre><code>*2 :1 $6 foobar <\/code><\/pre>\n<p>\u5728 Python \u91cc\uff0c\u8fd9\u4e2a\u8fd4\u56de\u53ef\u4ee5\u7ec4\u5408\u6210\u4e00\u4e2a\u5217\u8868<code> [1, \u201cfoobar\u201d]<\/code>\u3002<\/p>\n<p>\u7279\u6b8a\u5730\uff0c\u54c8\u5e0c\u8868\u4e5f\u662f\u901a\u8fc7\u6570\u7ec4\u8fd4\u56de\u7684\uff0c\u6309\u7167\u952e\u548c\u503c\u7684\u987a\u5e8f\u4f9d\u6b21\u8fd4\u56de\uff0c\u6bd4\u5982\u4e0b\u9762\u8fd9\u4e2a Python \u7b80\u5355\u5b57\u5178\u4f1a\u8fdb\u884c\u8fd9\u6837\u7684\u5e8f\u5217\u5316\u5904\u7406\uff1a<\/p>\n<pre><code>{    \u201cfoo\u201d: \u201capple\u201d,  \u201cbar\u201d: \u201corange\u201d, } <\/code><\/pre>\n<p>\u5e8f\u5217\u5316\u2193<\/p>\n<pre><code>*4 $3 foo $5 apple $3 bar $6 origin <\/code><\/pre>\n<p>\u6ce8\uff1a\u5ba2\u6237\u7aef\u6839\u636e\u8bf7\u6c42\u7684\u7c7b\u578b\u6765\u533a\u5206\u8fd4\u56de\u7684\u7c7b\u578b\uff0c\u534f\u8bae\u672c\u8eab\u5e76\u6ca1\u6709\u533a\u5206\u662f\u6570\u7ec4\u8fd8\u662f\u5b57\u5178\u7684\u529f\u80fd\u3002<\/p>\n<p>Redis \u5ba2\u6237\u7aef\u53d1\u51fa\u53bb\u7684\u547d\u4ee4\u90fd\u662f\u6570\u7ec4\uff0c\u7b2c\u4e00\u4e2a\u6570\u7ec4\u5143\u7d20\u8868\u793a\u547d\u4ee4\uff0c\u5176\u4f59\u7684\u5143\u7d20\u8868\u793a\u53c2\u6570\uff0c\u8bf7\u6c42\u7684\u4e00\u822c\u5f62\u5f0f\u5982\u4e0b\uff1a<\/p>\n<pre><code>*&lt;\u53c2\u6570\u6570\u91cf&gt; CR LF $&lt;\u53c2\u6570 1 \u7684\u5b57\u8282\u6570\u91cf&gt; CR LF &lt;\u53c2\u6570 1 \u7684\u6570\u636e&gt; CR LF ... $&lt;\u53c2\u6570 N \u7684\u5b57\u8282\u6570\u91cf&gt; CR LF &lt;\u53c2\u6570 N \u7684\u6570\u636e&gt; CR LF <\/code><\/pre>\n<p>\u5982\u7b80\u5355\u7684 GET \u8bf7\u6c42\u4f1a\u88ab\u5e8f\u5217\u5316\u4e3a<\/p>\n<pre><code>*2 $3 GET $3 foo <\/code><\/pre>\n<p>\u56de\u590d\u4f1a\u6839\u636e\u4e0d\u540c\u7684\u547d\u4ee4\u8fd4\u56de\u4e0d\u540c\u7684\u6570\u636e\u7c7b\u578b\uff0c\u5ba2\u6237\u7aef\u6309\u7167\u4e0a\u9762\u7684\u683c\u5f0f\u89e3\u6790\u8fd4\u56de\u7ed3\u679c\u3002<\/p>\n<h3><strong>\u4f20\u8f93\u534f\u8bae<\/strong><\/h3>\n<p>Redis \u7684\u8fde\u63a5\u662f\u57fa\u4e8e TCP \u957f\u8fde\u63a5\u7684\uff0c\u5ba2\u6237\u7aef\u5728\u5efa\u7acb\u8fde\u63a5\u540e\u4f1a\u4e00\u76f4\u4fdd\u6301\u8fde\u63a5\u72b6\u6001\uff0c\u76f4\u5230\u4e3b\u52a8\u5173\u95ed\u3002Redis \u4f7f\u7528\u201c\u8bf7\u6c42 \u2014\u2014 \u5e94\u7b54\u201d\u6a21\u578b\uff0c\u5f53\u4e00\u4e2a\u8bf7\u6c42\u53d1\u9001\u51fa\u53bb\u4e4b\u540e\u5ba2\u6237\u7aef\u4f1a\u7b49\u5f85\uff0c\u76f4\u5230\u88ab\u63a5\u53d7\u5230\u670d\u52a1\u7aef\u54cd\u5e94\u5185\u5bb9\u4e4b\u540e\uff0c\u624d\u4f1a\u53d1\u9001\u4e0b\u4e00\u4e2a\u8bf7\u6c42\u3002\u670d\u52a1\u7aef\u4e5f\u4e00\u6837\uff0c\u63a5\u53d7\u8bf7\u6c42\u5e76\u5904\u7406\u5b8c\u6210\u540e\uff0c\u624d\u4f1a\u54cd\u5e94\u4e0b\u4e00\u4e2a\u8bf7\u6c42\u3002Redis \u4e5f\u652f\u6301\u7ba1\u9053\uff0c\u5ba2\u6237\u7aef\u53ef\u4ee5\u628a\u591a\u4e2a\u8bf7\u6c42\u4e00\u6b21\u6027\u53d1\u7ed9\u670d\u52a1\u7aef\uff0c\u670d\u52a1\u7aef\u628a\u8fd9\u4e9b\u8bf7\u6c42\u90fd\u5904\u7406\u5b8c\u4e4b\u540e\uff0c\u628a\u5185\u5bb9\u4e00\u8d77\u53d1\u7ed9\u5ba2\u6237\u7aef\uff0c\u6240\u4ee5\u7ba1\u9053\u6280\u672f\u6700\u663e\u8457\u7684\u4f18\u52bf\u662f\u63d0\u9ad8\u4e86 Redis \u670d\u52a1\u7684\u6027\u80fd\u3002\u4ece\u5b8f\u89c2\u4e0a\u6765\u770b\uff0c\u5373\u4f7f\u4f7f\u7528\u4e86\u7ba1\u9053\u6280\u672f\uff0c\u4e5f\u662f\u9075\u5faa\u4e00\u4e2a\u8bf7\u6c42\u4e00\u4e2a\u54cd\u5e94\u6309\u5e8f\u6267\u884c\u7684\u6a21\u5f0f\u3002Redis \u8fde\u63a5\u4e4b\u95f4\u4f20\u8f93\u7684\u5185\u5bb9\u652f\u6301\u538b\u7f29\uff0c\u538b\u7f29\u7b97\u6cd5\u4f7f\u7528\u4e86 LZF \u7b97\u6cd5\uff0c\u662f\u4e00\u4e2a\u5f00\u6e90\u65e0\u4e13\u5229\u7684\u9ad8\u6548\u6d41\u538b\u7f29\u7b97\u6cd5\u3002Redis \u7684\u8ba4\u8bc1\u6bd4\u8f83\u7b80\u5355\uff0c\u5982\u679c\u670d\u52a1\u7aef\u8bbe\u7f6e\u4e86\u9700\u8981\u8ba4\u8bc1\u7684\u8bdd\uff08\u9ed8\u8ba4\u5173\u95ed\uff09\uff0c\u5ba2\u6237\u7aef\u9700\u8981\u5728\u6267\u884c\u5176\u5b83\u547d\u4ee4\u524d\u9700\u8981\u6267\u884c AUTH \u547d\u4ee4\uff0cAUTH \u547d\u4ee4\u53d1\u9001\u4e00\u4e2a\u5bc6\u7801\u7ed9\u670d\u52a1\u7aef\uff0c\u670d\u52a1\u7aef\u6821\u9a8c\u5bc6\u7801\uff0c\u901a\u8fc7\u5c31\u53ef\u4ee5\u6267\u884c\u5176\u5b83\u547d\u4ee4\u4e86\u3002<\/p>\n<h3><strong>\u603b\u7ed3<\/strong><\/h3>\n<p>Redis \u7684\u534f\u8bae\u662f\u975e\u5e38\u5bb9\u6613\u9605\u8bfb\u7684\uff0c\u800c\u4e14\u5b9e\u73b0\u5e8f\u5217\u5316\u548c\u53cd\u5e8f\u5217\u5316\u4e5f\u5f88\u7b80\u5355\uff0c\u8fd4\u56de\u7684\u6bcf\u4e00\u4e2a\u5b57\u6bb5\u90fd\u6709\u7c7b\u578b\u548c\u957f\u5ea6\u63cf\u8ff0\uff0c\u5206\u5272\u7b26\u4e5f\u90fd\u662f CRLF \u3002\u6bd4\u8d77 JSON\uff0cRedis \u5728\u5b9e\u73b0\u53cd\u5e8f\u5217\u5316\u7684\u65f6\u5019\u4e0d\u9700\u8981\u53bb\u8bfb\u6bcf\u4e00\u4e2a\u5b57\u6bb5\u7684\u5185\u5bb9\u6765\u731c\u6d4b\u5b83\u7684\u7c7b\u578b\uff0c\u5f97\u4ee5\u76f8\u5bf9\u5bb9\u6613\u5730\u505a\u51fa\u4e00\u4e2a\u9ad8\u6027\u80fd\u7684\u89e3\u7801\u5668\u3002Redis \u901a\u8baf\u534f\u8bae\u7684\u7f3a\u70b9\u5c31\u662f\u8868\u8fbe\u80fd\u529b\u6709\u70b9\u5f31\uff0c\u53ea\u6709\u5b57\u7b26\u4e32\u3001\u6574\u5f62\u6570\u5b57\u3001\u6570\u7ec4\u8fd9\u51e0\u4e2a\u901a\u7528\u7684\u7c7b\u578b\uff0c\u56e0\u6b64\u5728\u6211\u4eec\u60f3\u8981\u8868\u8fbe\u4e00\u4e2a\u5c0f\u6570\u7684\u65f6\u5019\uff0c\u4e0d\u5f97\u4e0d\u53ea\u80fd\u4f7f\u7528\u5b57\u7b26\u4e32\uff0c\u7136\u540e\u901a\u8fc7 atof \u8fd9\u6837\u7684\u5b57\u7b26\u4e32\u8f6c\u6d6e\u70b9\u6570\u7684\u65b9\u6cd5\u6765\u95f4\u63a5\u5b9e\u73b0\uff0c\u5982\u679c\u662f\u66f4\u590d\u6742\u7684\u7ed3\u6784\uff0c\u5c31\u4f1a\u6bd4\u8f83\u96be\u5b9e\u73b0\u3002<\/p>\n<h2><strong>MySQL<\/strong><\/h2>\n<p>MySQL \u662f\u6700\u5e7f\u6cdb\u4f7f\u7528\u7684\u5f00\u6e90\u5173\u7cfb\u578b\u6570\u636e\u5e93\u7ba1\u7406\u7cfb\u7edf\uff0c\u7531\u4e8e\u6027\u80fd\u9ad8\u3001\u6210\u672c\u4f4e\u3001\u53ef\u9760\u6027\u597d\u7b49\u4f18\u70b9\uff0c\u5df2\u7ecf\u6210\u4e3a\u6700\u6d41\u884c\u7684\u5f00\u6e90\u6570\u636e\u5e93\u4e4b\u4e00\u3002MySQL \u4e0d\u5149\u5728\u4e2d\u5c0f\u578b\u7f51\u7ad9\u4e2d\u88ab\u9891\u7e41\u4f7f\u7528\uff0c\u5728\u5927\u578b\u7f51\u7ad9\u4e2d\u4e5f\u9010\u6e10\u6210\u4e3a\u4e3b\u8981\u7684\u6570\u636e\u5e93\u5e94\u7528\u7a0b\u5e8f\u3002<\/p>\n<h3><strong>\u5e8f\u5217\u5316\u534f\u8bae<\/strong><\/h3>\n<p>MySQL \u4f20\u8f93\u7684\u6570\u636e\u90fd\u90fd\u4f7f\u7528\u4e86\u4e00\u4e2a\u7edf\u4e00\u7684\u5305\u683c\u5f0f\uff1a4 byte \u5305\u5934 + N byte \u6570\u636e\u3002<\/p>\n<p><img decoding=\"async\" loading=\"lazy\" referrerpolicy=\"no-referrer\" rel=\"noreferrer\" src=\"http:\/\/4563.org\/wp-content\/uploads\/2021\/04\/20210401_60660bd0aee53.png\" alt=\"\u6280\u672f\u63ed\u79d8 | \u5982\u4f55\u8bbe\u8ba1 RQData \u901a\u8baf\u534f\u8bae\" \/><\/p>\n<p>\u8868\u5934\u5305\u542b\u4e86<\/p>\n<ul>\n<li>\u62a5\u6587\u957f\u5ea6\uff0c\u6807\u8bb0\u5f53\u524d\u7684\u8bf7\u6c42\u5185\u5bb9\u7684\u5b9e\u9645\u6570\u636e\u957f\u5ea6\uff0c\u4e0d\u5305\u542b\u8868\u5934 4Byte\uff0c\u4ee5\u5b57\u8282\u4e3a\u5355\u4f4d\uff1b<\/li>\n<li>\u5e8f\u5217\u53f7\uff0c\u4fdd\u8bc1\u62a5\u6587\u7684\u987a\u5e8f\u3002\u6bcf\u4e2a\u8fde\u63a5\u90fd\u662f\u4ece 0 \u5f00\u59cb\u9012\u589e\u3002<\/li>\n<\/ul>\n<p>\u6d88\u606f\u4f53\u7528\u4e8e\u5b58\u653e\u62a5\u6587\u7684\u5177\u4f53\u6570\u636e\uff0c\u957f\u5ea6\u7531\u6d88\u606f\u5934\u4e2d\u7684\u957f\u5ea6\u503c\u51b3\u5b9a\uff0c\u957f\u5ea6\u503c\u7528 3 \u4e2a byte \u8868\u793a\u6574\u578b\u6570\u636e\uff0c\u4f7f\u7528\u5c0f\u7aef\u5b57\u8282\u5e8f\u7f16\u7801\u3002\u8868\u5934\u6240\u80fd\u8868\u793a\u7684\u6700\u5927\u5185\u5bb9\u662f \uff08 2 ^24 \uff09- 1 Bytes \u957f\u5ea6\uff0c\u4e5f\u5c31\u662f 16M \u2013 1 Bytes\uff0c\u5982\u679c\u9700\u8981\u8868\u793a\u7684\u957f\u5ea6\u5927\u4e8e\u6216\u7b49\u4e8e\u8fd9\u4e2a\u6570\uff0c\u5c31\u5206\u4e3a\u4e24\u6b21\u53d1\u9001\uff0c\u5982\u679c\u5185\u5bb9\u521a\u597d\u662f 16M -1 Bytes\uff0c\u5219\u4e0b\u4e00\u6b21\u5305\u7684\u957f\u5ea6\u5c31\u662f 0 \u3002\u4e0a\u8ff0\u64cd\u4f5c\u59cb\u4e8e\u4e00\u4e2a\u5386\u53f2\u539f\u56e0\uff0cMySQL \u8bbe\u8ba1\u4e4b\u521d\u6ca1\u6709\u8003\u8651\u5230\u5185\u5bb9\u6709 16MB \u8fd9\u4e48\u5927\uff0c\u4ece\u800c\u6ca1\u6709\u9884\u7559\u5b57\u6bb5\u6765\u6807\u5fd7\u8fd9\u4e2a\u5305\u7684\u6570\u636e\u662f\u4e0d\u5b8c\u6574\u7684\uff0c\u6240\u4ee5\u53ea\u80fd\u628a\u8fbe\u5230\u6216\u8d85\u8fc7 16MB \u8fd9\u4e00\u6700\u5927\u957f\u5ea6\u7684\u5305\u7684\u5185\u5bb9\u5206\u5f00\u53d1\u9001\uff0c\u76f4\u5230\u5305\u5185\u5bb9\u5c0f\u4e8e\u8fd9\u4e2a\u6700\u5927\u7684\u957f\u5ea6 \uff0c\u518d\u628a\u8fd9\u4e9b\u6570\u636e\u62fc\u63a5\u8d77\u6765\u7ec4\u6210\u4e00\u4e2a\u5b8c\u6574\u7684\u5305\uff0c\u8fd9\u4e00\u7cfb\u5217\u64cd\u4f5c\u4e5f\u7ed9\u89e3\u6790\u5668\u5e26\u6765\u4e86\u989d\u5916\u7684\u590d\u6742\u5ea6\u3002<\/p>\n<p>\u6570\u636e\u5305\u4e2d\u7684\u6570\u636e\u5185\u5bb9\u6709 2 \u79cd\u57fa\u672c\u6570\u636e\u7c7b\u578b\uff1a\u6574\u578b\u548c\u5b57\u7b26\u4e32\u3002<\/p>\n<h4><strong>01 \u6574\u578b<\/strong><\/h4>\n<p>\u6574\u578b\u503c\u7684\u7f16\u7801\u6709\u4e24\u79cd\uff0c\u5b9a\u957f\u6574\u578b\u548c\u5e26\u957f\u5ea6\u7f16\u7801\u7684\u6574\u578b\u3002<\/p>\n<p>\u5b9a\u957f\u6574\u578b\u7f16\u7801\u65f6\u5c06\u6574\u578b\u6570\u5b57\u653e\u5230\u4e00\u4e2a\u56fa\u5b9a\u4e2a\u6570\u7684\u5b57\u8282\u5e8f\u5217\u4e2d\uff0c\u4ee5\u5c0f\u7aef\u5b57\u8282\u5e8f\u6765\u4fdd\u5b58\u3002\u6709\u4ece 1byte \u5230 8byte \u8fd9 8 \u4e2a\u7c7b\u578b\uff0c\u5b9a\u957f\u7684\u6574\u578b\u80fd\u8868\u793a\u7684\u6700\u5927\u503c\u662f\u56fa\u5b9a\u7684\uff0c\u4e0d\u80fd\u6269\u5c55\u3002<\/p>\n<p>\u5e26\u957f\u5ea6\u7f16\u7801\u7684\u6574\u578b\u901a\u5e38\u7528 1 \u30013 \u30014 \u30019 \u4e2a\u5b57\u8282\u6765\u8868\u793a\u6574\u6570\uff0c\u5b83\u4f1a\u6839\u636e\u6570\u5b57\u7684\u5927\u5c0f\u81ea\u52a8\u9009\u62e9\u5408\u9002\u7684\u5b57\u8282\u6570\u91cf\u6765\u8868\u793a\uff0c\u5982\u679c 1 \u4e2a\u5b57\u8282\u5b58\u4e0d\u5728\uff0c\u5c31\u4f1a\u5b58\u5728 3 \u4e2a\u5b57\u8282\u91cc\uff0c\u4ed6\u7684\u7f16\u7801\u89c4\u5219\u5982\u4e0b\uff1a<\/p>\n<ul>\n<li>\u5982\u679c\u503c 0\u2264N \uff1c 251\uff0c\u5219\u4f7f\u7528\u4e00\u4e2a\u5b57\u8282\u6765\u5b58\u50a8\uff1b<\/li>\n<li>\u5982\u679c\u503c 251\u2264N \uff1c 2^16, \u5219\u4f7f\u7528 0xfc + 2 Byte \u6765\u5b58\u50a8\uff08 3 \u5b57\u8282\uff09\uff1b<\/li>\n<li>\u5982\u679c\u503c 2^16\u2264N \uff1c 2^24, \u5219\u4f7f\u7528 0xfd + 3 byte \u6765\u5b58\u50a8\uff08 4 \u5b57\u8282\uff09\uff1b<\/li>\n<li>\u5982\u679c\u503c 2^24\u2264N \uff1c 2^64, \u5219\u4f7f\u7528 0xfe + 8 byte \u6765\u5b58\u50a8\uff08 9 \u5b57\u8282\uff09\uff1b<\/li>\n<\/ul>\n<h4><strong>02 \u5b57\u7b26\u4e32<\/strong><\/h4>\n<p>\u5b57\u7b26\u4e32\u4f1a\u6309\u7167\u662f\u4e0d\u662f\u4ee5 NULL \u7ed3\u5c3e\u5206\u4e3a\u4e0b\u9762\u51e0\u79cd\uff1a<\/p>\n<ul>\n<li>\u56fa\u5b9a\u957f\u5ea6\u5b57\u7b26\u4e32\uff0c\u4e5f\u5c31\u662f\u5b57\u7b26\u4e32\u957f\u5ea6\u56fa\u5b9a\uff0c\u5b57\u7b26\u4e32\u4e0d\u591f\u65f6\u4ee5 NULL \u586b\u5145\u3002<\/li>\n<li>\u4ee5 NULL \u7ed3\u5c3e\uff0c\u5b57\u7b26\u4e32\u957f\u5ea6\u4e0d\u56fa\u5b9a\uff0c\u9047\u5230 NULL \u5b57\u7b26\u65f6\u5b57\u7b26\u4e32\u7ed3\u675f\u3002<\/li>\n<li>\u5b57\u7b26\u4e32\u957f\u5ea6\u4e0d\u56fa\u5b9a\uff0c\u9047\u5230 NULL \u4e0d\u7ed3\u675f\uff0c\u957f\u5ea6\u50a8\u5b58\u5728\u5b57\u7b26\u4e32\u4e4b\u524d\uff0c\u7528\u4e0a\u9762\u7684\u5e26\u957f\u5ea6\u7f16\u7801\u7684\u6574\u578b\u65b9\u5f0f\u7f16\u7801\u3002<\/li>\n<li>\u5b57\u7b26\u4e32\u5728\u7a0b\u5e8f\u8fd0\u884c\u4e2d\u56fa\u5b9a\u957f\u5ea6\uff0c\u4e0d\u591f\u4e5f\u586b\u5145 NULL \u3002<\/li>\n<li>\u5b57\u7b26\u4e32\u662f\u6574\u4e2a\u6570\u636e\u5305\u7684\u6700\u540e\u7ec4\u6210\u90e8\u5206\uff0c\u5b57\u7b26\u4e32\u7684\u957f\u5ea6\u7b49\u4e8e\u8fd9\u4e2a\u6570\u636e\u5305\u7684\u957f\u5ea6\u51cf\u53bb\u5f53\u524d\u4f4d\u7f6e\u7684\u504f\u79fb\u91cf\u3002<\/li>\n<\/ul>\n<p>\u5ba2\u6237\u7aef\u8bf7\u6c42\u65f6\uff0c\u5185\u5bb9\u7684\u7b2c\u4e00\u4e2a\u5b57\u8282\u8868\u660e\u8bf7\u6c42\u7684\u547d\u4ee4\uff0c\u540e\u9762\u7684\u5b57\u8282\u6765\u8868\u793a\u53c2\u6570\u3002\u5e38\u7528\u7684\u6570\u636e\u7684\u589e\u5220\u6539\u67e5\u90fd\u662f COM_QUERY \u547d\u4ee4\uff0c\u540e\u9762\u8ddf\u7740\u7684\u662f\u4e00\u4e2a\u7528\u4e0a\u9762\u63d0\u5230 E \u65b9\u5f0f\u7f16\u7801\u7684 SQL \u8bed\u53e5 \u3002\u6bd4\u5982\u4e00\u4e2a\u7b80\u5355\u7684 <code>select * from foo<\/code> \u67e5\u8be2\u8bed\u53e5\u5b8c\u6574\u7684\u5305\u7f16\u7801\u540e\u7ed3\u679c\u662f\uff1a<\/p>\n<pre><code>0x00 00 11           \u8868\u793a\u6570\u636e\u957f\u5ea6\u662f 18\uff0cSQL \u5b57\u7b26\u4e32 17 + 1 \u5b57\u8282\u547d\u4ee4 = 18 0x00                  \u5e8f\u5217\u53f7\u662f 0 0x03                  COM_QUERY \u547d\u4ee4 0x73 65 6c 65 63 74 20 2a 20 66 72 6f 6d 20 66 6f 6f      select * from foo \u7684\u4e8c\u8fdb\u5236\u7f16\u7801 <\/code><\/pre>\n<p>\u670d\u52a1\u7aef\u8fd4\u56de\u7684\u5305\u6bd4\u8d77\u8bf7\u6c42\u5305\u4f1a\u590d\u6742\u4e00\u70b9\uff0c\u4e3b\u8981\u5305\u62ec\u4ee5\u4e0b\u56db\u7c7b\uff1a<\/p>\n<ol>\n<li>\u6210\u529f\u62a5\u544a\u5305<\/li>\n<li>\u9519\u8bef\u6d88\u606f\u5305<\/li>\n<li>\u6570\u636e\u7ed3\u675f\u5305<\/li>\n<li>\u7ed3\u679c\u96c6\u5408\u5305<\/li>\n<\/ol>\n<p>\u6211\u4eec\u5206\u522b\u8ba8\u8bba\u4e00\u4e0b\u3002<\/p>\n<h4><strong>01 \u6210\u529f\u62a5\u544a\u5305<\/strong><\/h4>\n<p>\u5bf9\u6570\u636e\u7684\u66f4\u6539\u8fd9\u79cd\u64cd\u4f5c\u670d\u52a1\u7aef\u4f1a\u5411\u5ba2\u6237\u7aef\u8fd4\u56de\u4e00\u4e2a OK \u5305\uff0c\u7528\u6765\u8868\u793a\u547d\u4ee4\u6210\u529f\u6267\u884c\u3002\u4e00\u4e2a OK \u5305\u7684\u957f\u5ea6\u8981\u5927\u4e8e 7\uff0c\u800c\u4e14\u7b2c\u4e00\u4e2a\u5b57\u8282\u5fc5\u987b\u662f 0x00 \u3002<\/p>\n<h4><strong>02 \u9519\u8bef\u6d88\u606f\u5305<\/strong><\/h4>\n<p>\u5982\u679c\u547d\u4ee4\u51fa\u9519\u4e86\uff0c\u670d\u52a1\u7aef\u4f1a\u8fd4\u56de\u4e00\u4e2a\u9519\u8bef\u5305\uff0c\u5b83\u7684\u6570\u636e\u683c\u5f0f\u5982\u4e0b\uff1a<\/p>\n<p><img decoding=\"async\" loading=\"lazy\" referrerpolicy=\"no-referrer\" rel=\"noreferrer\" src=\"http:\/\/4563.org\/wp-content\/uploads\/2021\/04\/20210401_60660bff606d3.webp\" alt=\"\u6280\u672f\u63ed\u79d8 | \u5982\u4f55\u8bbe\u8ba1 RQData \u901a\u8baf\u534f\u8bae\" \/><\/p>\n<p>\u7b2c\u4e00\u4e2a\u5b57\u8282\u56fa\u5b9a\u662f 0xff\uff0c \u63a5\u4e0b\u6765\u662f\u5c0f\u7aef\u5b57\u8282\u5e8f\uff08\u8868\u793a\u9519\u8bef\u7801\uff09\u3001\u56fa\u5b9a\u7684\u5b57\u7b26 # \u548c 5 \u4e2a\u5b57\u7b26\u957f\u5ea6\uff08\u8868\u793a\u5f53\u524d SQL \u6267\u884c\u7684\u72b6\u6001\uff09\uff0c\u6700\u540e\u662f\u9519\u8bef\u6d88\u606f\u7684\u5b57\u7b26\u4e32\uff0c\u4e5f\u662f\u7528\u4e0a\u9762\u63d0\u5230\u7684 E \u65b9\u5f0f\u7f16\u7801\u7684\u3002<\/p>\n<h4><strong>03 \u6570\u636e\u7ed3\u675f\u5305\uff08 EOF \u5305\uff09<\/strong><\/h4>\n<p>EOF \u5305\u662f\u8868\u793a\u6570\u636e\u7ed3\u675f\u4e86\uff0c\u5b83\u6709 5 \u4e2a\u5b57\u8282\u7684\u5185\u5bb9\uff0c\u7b2c\u4e00\u4e2a\u5b57\u8282\u56fa\u5b9a\u662f 0xfe\uff0c\u5269\u4e0b 4 \u4e2a\u5b57\u8282\u662f\u4e24\u4e2a\u56fa\u5b9a 2 \u5b57\u8282\u957f\u5ea6\u7f16\u7801\u7684\u6574\u578b\uff0c\u7528\u5c0f\u7aef\u5b57\u8282\u5e8f\uff0c\u5206\u522b\u8868\u793a\u8b66\u544a\u7684\u6570\u91cf\u548c\u670d\u52a1\u7aef\u7684\u72b6\u6001\u4fe1\u606f\u3002<\/p>\n<h4><strong>04 \u7ed3\u679c\u96c6\u5408\u5305<\/strong><\/h4>\n<p>\u7ed3\u679c\u96c6\u5408\u5305\u662f\u51e0\u79cd\u5305\u7684\u7edf\u79f0\u3002\u4e00\u4e9b\u67e5\u8be2\u8bed\u53e5\u9700\u8981\u8fd4\u56de\u5177\u4f53\u7684\u8868\u5185\u5bb9\uff0c\u8fd4\u56de\u7ed3\u679c\u4e00\u822c\u4f1a\u5305\u542b\u5b57\u6bb5\u4fe1\u606f\u3001\u6570\u636e\u96c6\u5408\u3001\u8868\u793a\u6570\u636e\u7ec8\u6b62\u7684 EOF \u3002\u5b57\u6bb5\u96c6\u5408\u91cc\u9762\u5b9a\u4e49\u6570\u636e\u7684\u5177\u4f53\u5185\u5bb9\uff0c\u6570\u636e\u96c6\u5408\u5305\u542b\u4e86\u5bf9\u5e94\u5b57\u6bb5\u96c6\u5408\u5b9a\u4e49\u597d\u7684\u76f8\u540c\u6570\u91cf\u548c\u7c7b\u578b\u7684\u6570\u636e\uff0c\u518d\u5206\u522b\u89e3\u6790\u6210\u5177\u4f53\u7684\u6570\u636e\u3002<\/p>\n<h3><strong>\u4f20\u8f93\u534f\u8bae<\/strong><\/h3>\n<p>MySQL \u7684\u8fde\u63a5\u4e5f\u662f TCP \u957f\u8fde\u63a5\uff0c\u548c Redis \u4e0d\u540c\uff0cMySQL \u7684\u5728\u5efa\u7acb\u8fde\u63a5\u4e4b\u524d\u6709\u4e00\u4e2a\u8ba4\u8bc1\u8fc7\u7a0b\uff0c\u5176\u57fa\u672c\u6d41\u7a0b\u662f\uff1a<\/p>\n<ol>\n<li>\u8fde\u63a5\u5efa\u7acb\u65f6\u5148\u9a8c\u8bc1\u7528\u6237\u7684 IP \u5730\u5740\u662f\u5426\u53ef\u4ee5\u8fde\u63a5\uff0c\u53ef\u4ee5\u8fde\u63a5\u65f6\u8fdb\u5165\u4e0b\u4e00\u6b65\u7528\u534f\u5546\u8ba4\u8bc1\u9636\u6bb5\uff0c\u5426\u5219\u76f4\u63a5\u65ad\u5f00\u3002<\/li>\n<li>\u670d\u52a1\u5668\u53d1\u9001\u63e1\u624b\u5305\u7ed9\u5ba2\u6237\u7aef\uff0c\u5305\u542b\u4e86\u4e00\u4e9b MySQL \u670d\u52a1\u4fe1\u606f\u548c\u4e00\u4e2a\u968f\u673a\u5b57\u7b26\u4e32\u3002<\/li>\n<li>\u5ba2\u6237\u7aef\u7528\u968f\u673a\u5b57\u7b26\u4e32\u548c\u7528\u6237\u8f93\u5165\u7684\u5bc6\u7801\u751f\u6210\u4e00\u4e2a token \u53d1\u7ed9\u670d\u52a1\u5668\u3002<\/li>\n<li>\u670d\u52a1\u5668\u4e5f\u7528\u968f\u673a\u5b57\u7b26\u4e32\u548c\u7528\u6237\u4fdd\u5b58\u7684\u5bc6\u7801\u751f\u6210\u4e00\u4e2a token\uff0c\u6bd4\u5bf9\u548c\u4e0a\u4e00\u6b21\u5ba2\u6237\u7aef\u53d1\u8fc7\u6765\u7684 token \u662f\u5426\u76f8\u540c\uff0c\u76f8\u540c\u8fd4\u56de\u6210\u529f\u62a5\u544a\u5305\uff0c\u5426\u5219\u8fd4\u56de\u9519\u8bef\u62a5\u544a\u5305\u3002<\/li>\n<\/ol>\n<p>MySQL \u5728\u5904\u7406\u8bf7\u6c42\u7684\u65f6\u5019\u4e5f\u662f\u6839\u636e\u8bf7\u6c42\u54cd\u5e94\u6a21\u578b\uff0c\u5c06\u8bf7\u6c42\u6309\u5e8f\u4e00\u4e2a\u4e00\u4e2a\u5904\u7406\u3002<\/p>\n<p>MySQL \u8fde\u63a5\u652f\u6301\u4e24\u79cd\u538b\u7f29\u7b97\u6cd5\uff0czlib \u548c zstd \u3002zlib \u662f\u76ee\u524d\u88ab\u4f7f\u7528\u6700\u5e7f\u6cdb\u7684\u4e00\u79cd\u6d41\u538b\u7f29\u7b97\u6cd5\uff1b\u800c zstd \u662f Facebook \u5f00\u6e90\u7684\u4e00\u4e2a\u538b\u7f29\u7b97\u6cd5\uff0c\u5728\u4fdd\u6301\u9ad8\u538b\u7f29\u7387\u7684\u540c\u65f6\uff0c\u538b\u7f29\u548c\u89e3\u538b\u7f29\u901f\u5ea6\u90fd\u6bd4 zlib \u5feb\u5f88\u591a\u3002\u670d\u52a1\u7aef\u548c\u5ba2\u6237\u7aef\u5728\u8fde\u63a5\u7684\u7b2c\u4e00\u6b65\u63e1\u624b\u7684\u65f6\u5019\u4f1a\u534f\u5546\u538b\u7f29\u7b97\u6cd5\u3002<\/p>\n<h3><strong>\u603b\u7ed3<\/strong><\/h3>\n<p>MySQL \u7684\u534f\u8bae\u76f8\u5bf9\u4e8e Reids \u6765\u8bf4\u6bd4\u8f83\u590d\u6742\uff0c\u5b83\u5b9a\u4e49\u4e86\u5f88\u591a\u72b6\u6001\uff0c\u9700\u8981\u5ba2\u6237\u7aef\u6839\u636e\u72b6\u6001\u53bb\u4f7f\u7528\u4e0d\u540c\u7684\u51fd\u6570\u5904\u7406\u3002SQL \u67e5\u8be2\u8bed\u53e5\u6240\u80fd\u8868\u8fbe\u7684\u5185\u5bb9\u975e\u5e38\u4e30\u5bcc\uff0c\u8fd4\u56de\u7684\u5185\u5bb9\u4f1a\u6839\u636e\u67e5\u8be2\u6761\u4ef6\u7684\u4e0d\u540c\u800c\u4e0d\u540c\uff0c\u6240\u4ee5\u89e3\u6790\u5668\u5199\u8d77\u6765\u4e5f\u590d\u6742\u3002\u6d88\u606f\u5185\u5bb9\u5185\u5bb9\u4e5f\u662f\u7f16\u7801\u6210\u4e86\u4e0d\u53ef\u8bfb\u7684\u4e8c\u8fdb\u5236\uff0c\u6293\u5230\u4e86\u7f51\u7edc\u5305\u4e5f\u9700\u8981\u505a\u4e00\u4e9b\u89e3\u6790\u5de5\u4f5c\u624d\u80fd\u770b\u7684\u61c2\u3002\u4f46\u662f\u56e0\u4e3a\u5173\u7cfb\u578b\u6570\u636e\u5e93\u7ba1\u7406\u7cfb\u7edf\u672c\u8eab\u6bd4\u8f83\u590d\u6742\uff0c\u6240\u4ee5\u901a\u8baf\u534f\u8bae\u5fc5\u7136\u4e5f\u4f1a\u8ddf\u7740\u590d\u6742\uff0c\u8fd9\u662f\u65e0\u53ef\u539a\u975e\u7684\u3002<\/p>\n<h2><strong>gRPC \u548c Protocol Buffers<\/strong><\/h2>\n<p>gRPC \u662f\u8c37\u6b4c\u5f00\u6e90\u7684\u4e00\u4e2a\u7b80\u5355\u6613\u7528\u652f\u6301\u591a\u8bed\u8a00\u7684 RPC \u6846\u67b6\uff0c\u57fa\u4e8e protocol buffers \u5e8f\u5217\u5316\u534f\u8bae\u5f00\u53d1\uff0c\u652f\u6301\u591a\u79cd\u8bed\u8a00\uff0c\u662f\u4f7f\u7528\u975e\u5e38\u5e7f\u6cdb\u7684\u4e00\u4e2a\u5f00\u6e90\u901a\u4fe1\u6846\u67b6\u3002<\/p>\n<h3><strong>\u5e8f\u5217\u5316\u534f\u8bae<\/strong><\/h3>\n<p>Protocol buffers \u5b9a\u4e49\u4e86\u4e00\u4e2a IDL \uff08 Interface description language \u63a5\u53e3\u63cf\u8ff0\u8bed\u8a00\uff09\uff0c\u6709\u81ea\u5df1\u7684\u751f\u6210\u5668\uff0c\u6839\u636e\u7528\u6237\u5b9a\u4e49\u597d\u7684\u5185\u5bb9\u6765\u751f\u6210\u7f16\u7801\u548c\u89e3\u7801\u7684\u76ee\u6807\u4ee3\u7801\uff0c\u7a0b\u5e8f\u76f4\u63a5\u5bfc\u5165\u5c31\u53ef\u4ee5\u8fdb\u884c\u89e3\u6790\u3002<\/p>\n<p>\u4e00\u4e2a\u7b80\u5355\u7684 Protocol buffers \u7684\u5b9a\u4e49\u5185\u5bb9\u5982\u4e0b\uff1a<\/p>\n<pre><code>message Foo {   int32  foo = 1;   string bar = 2;  } <\/code><\/pre>\n<p>\u7f16\u7801\u540e\uff0c\u6bcf\u4e2a\u5b57\u6bb5\u4ece\u903b\u8f91\u4e0a\u5206\u4e3a\u4e09\u4e2a\u90e8\u5206\uff1a<\/p>\n<pre><code>&lt;tag&gt; &lt;type&gt; [&lt;length&gt;] &lt;data&gt; <\/code><\/pre>\n<p>\u6700\u524d\u9762\u7684\u662f TAG\uff0c\u6bcf\u4e00\u4e2a\u5b57\u6bb5\u540e\u9762\u90fd\u6709\u4e00\u4e2a TAG \uff08\u5982\u4e0a\u9762\u7684\u201c1\u201d\u548c\u201c2\u201d\uff09 \uff0c\u4e0d\u80fd\u91cd\u590d\uff0c\u5e8f\u5217\u5316\u7684\u65f6\u5019\u4f1a\u628a\u8fd9\u4e2a TAG \u4e5f\u52a0\u4e0a\uff0c\u53cd\u5e8f\u5217\u5316\u7684\u65f6\u5019\u5c31\u53ef\u4ee5\u6839\u636e\u8fd9\u4e2a TAG \u6765\u7ed9\u5bf9\u5e94\u7684\u5b57\u6bb5\u586b\u5145\u5185\u5bb9\uff1b<\/p>\n<p>\u7b2c\u4e8c\u4e2a\u662f\u5b57\u6bb5\u7684\u7c7b\u578b\uff1b\u7b2c\u4e09\u4e2a\u662f\u5b57\u6bb5\u957f\u5ea6\uff0c\u957f\u5ea6\u662f\u53ef\u9009\u7684\uff0c\u5982\u679c\u662f\u5b57\u7b26\u4e32\u6216\u8005\u5b57\u8282\u5e8f\u5217\u5219\u4f1a\u6709\u8fd9\u4e2a\u5b57\u6bb5\u6807\u793a\u957f\u5ea6\u3002<\/p>\n<p>Tag\uff0ctype \u548c length \u90fd\u662f\u7528\u6574\u578b\u8868\u793a\u3002\u7f16\u7801\u6574\u578b\u7684\u65f6\u5019\uff0cProtocol Buffers \u4f7f\u7528\u4e86 VarInts \u7b97\u6cd5\uff0c\u548c MySQL \u7684\u5e26\u957f\u5ea6\u7f16\u7801\u7684\u6574\u578b\u7c7b\u4f3c\uff0cVarInts \u4e5f\u7528\u4e0d\u56fa\u5b9a\u957f\u5ea6\u7684\u5b57\u8282\u6570\u8868\u793a\u6574\u578b\uff0c\u5177\u4f53\u8868\u793a\u65b9\u5f0f\u5982\u4e0b\uff1a<\/p>\n<pre><code>   0 ~ 2^07 - 1 0xxxxxxx 2^07 ~ 2^14 - 1 1xxxxxxx 0xxxxxxx 2^14 ~ 2^21 - 1 1xxxxxxx 1xxxxxxx 0xxxxxxx 2^21 ~ 2^28 - 1 1xxxxxxx 1xxxxxxx 1xxxxxxx 0xxxxxxx 2^28 ~ 2^35 - 1 1xxxxxxx 1xxxxxxx 1xxxxxxx 1xxxxxxx 0xxxxxxx <\/code><\/pre>\n<p>\u5728\u89e3\u7801\u7684\u65f6\u5019\uff0c\u6bcf\u4e00\u4e2a\u5b57\u8282\u7684\u7b2c\u4e00\u4e2a\u6bd4\u7279\u5982\u679c\u662f 1 \u7684\u8bdd\uff0c\u5c31\u8bf4\u660e\u6ca1\u6709\u7ed3\u675f\uff0c\u53ef\u4ee5\u7ee7\u7eed\u8bfb\u53d6\u4e0b\u4e00\u4e2a\u5b57\u8282\uff0c\u76f4\u5230\u9047\u5230\u7b2c\u4e00\u4e2a\u6bd4\u7279\u662f 0 \u7684\u5b57\u8282\u4e3a\u6b62\u3002\u6700\u540e\u628a\u8fd9\u4e9b\u5b57\u8282\u6700\u9ad8\u4f4d\u5220\u6389\uff0c\u7ec4\u5408\u6210\u7684\u6570\u5b57\u5c31\u662f\u771f\u5b9e\u7684\u6574\u578b\u6570\u5b57\u5927\u5c0f\u3002<\/p>\n<p>Protocol buffers \u5b9a\u4e49\u4e86 4 \u79cd\u7c7b\u578b\u7684\u6570\u636e\uff1a<\/p>\n<ul>\n<li>VarInts \u8868\u793a\u5404\u79cd\u5927\u5c0f\u7684\u6574\u578b\u6570\u5b57\uff0c\u5305\u62ec\u679a\u4e3e\u3002<\/li>\n<li>64-bit \u8868\u793a\u56fa\u5b9a\u5927\u5c0f 8 \u5b57\u8282\u7684\u6570\u5b57\u548c\u6d6e\u70b9\u6570\u3002<\/li>\n<li>Length-delimited \u8868\u793a\u5b57\u7b26\u4e32, \u5b57\u8282\u6570\u7ec4, \u91cd\u590d\u5b57\u6bb5\u3002<\/li>\n<li>32-bit \u8868\u793a\u56fa\u5b9a 4 \u5b57\u8282\u7684\u6574\u578b\u6570\u5b57\u548c\u6d6e\u70b9\u6570\u3002<\/li>\n<\/ul>\n<p>\u5176\u4e2d\u91cd\u590d\u5b57\u6bb5\u53ef\u4ee5\u548c Redis \u6570\u7ec4\u4e00\u6837\u7528\u6765\u8868\u793a\u54c8\u5e0c\u8868\u3002\u548c\u5176\u5b83\u534f\u8bae\u4e00\u6837\uff0cProtocol Buffers \u6240\u4f7f\u7528\u7684\u5b57\u8282\u5e8f\u4e5f\u662f\u5c0f\u7aef\u5b57\u8282\u5e8f\u3002<\/p>\n<h3><strong>\u8fde\u63a5\u534f\u8bae<\/strong><\/h3>\n<p>gRPC \u4f7f\u7528\u4e86 HTTP\/2 \u534f\u8bae\u6765\u4f20\u8f93\u6570\u636e\uff0cHTTP\/2 \u534f\u8bae\u662f HTTP\/1.1 \u534f\u8bae\u7684\u5347\u7ea7\u7248\uff0c2015 \u5e74\u6b63\u5f0f\u53d1\u8868\uff0c\u4fdd\u7559\u4e86 HTTP\/1.1 \u7684\u5927\u90e8\u5206\u8bed\u4e49\u540e\uff0c\u5b83\u989d\u5916\u6dfb\u52a0\u4e86\uff1a<\/p>\n<ul>\n<li>HTTP \u7684\u5934\u90e8\u538b\u7f29\uff1b<\/li>\n<li>\u548c Redis \u4e00\u6837\uff0cHTTP\/2 \u4e5f\u652f\u6301\u8bf7\u6c42\u7ba1\u7ebf\u5316\uff0c\u548c Redis \u4e0d\u540c\u7684\u662f\uff0cHTTP\/2 \u8fd4\u56de\u7684\u54cd\u5e94\u662f\u53ef\u4ee5\u65e0\u5e8f\u7684\uff0c\u5904\u7406\u5b8c\u4e86\u4e00\u4e2a\u8bf7\u6c42\u5c31\u53ef\u4ee5\u76f4\u63a5\u8fd4\u56de\uff0c\u4e0d\u9700\u8981\u6309\u987a\u5e8f\u8fd4\u56de\u54cd\u5e94\uff1b<\/li>\n<li>\u670d\u52a1\u7aef\u63a8\u9001\u6570\u636e\u3002<\/li>\n<\/ul>\n<p>HTTP\/2 \u8fde\u63a5\u7ef4\u62a4\u4e86\u4e00\u4e2a\u52a8\u6001\u8868\uff0c\u52a8\u6001\u8868\u6700\u521d\u662f\u7a7a\u7684\uff0c\u5f53\u6bcf\u4e00\u4e2a header \u88ab\u89e3\u91ca\u5e76\u4e14\u52a8\u6001\u8868\u8fd8\u6709\u7a7a\u95f4\u65f6\uff0c\u5b83\u5c31\u4f1a\u88ab\u5b58\u50a8\u5728\u8868\u4e2d\uff0c\u540e\u9762\u7684\u8bf7\u6c42\u5c31\u4f1a\u4f7f\u7528\u52a8\u6001\u8868\u6765\u51cf\u5c11\u5934\u90e8\u4fe1\u606f\u7684\u4f20\u8f93\u91cf\u3002HTTP\/2 \u4e5f\u652f\u6301\u5ba2\u6237\u7aef\u53d1\u9001\u591a\u4e2a\u8bf7\u6c42\uff0c\u670d\u52a1\u7aef\u54cd\u5e94\u8bf7\u6c42\u65e0\u9700\u9075\u5faa\u5148\u5165\u5148\u51fa\u7684\u539f\u5219\uff0c\u53ea\u8981\u6709\u4e00\u4e2a\u8bf7\u6c42\u51c6\u5907\u597d\u4e86\u5c31\u53ef\u4ee5\u8fd4\u56de\u54cd\u5e94\uff0c\u6240\u4ee5 HTTP \u8bf7\u6c42\u7684\u54cd\u5e94\u901f\u5ea6\u4f1a\u5feb\u5f88\u591a\u3002HTTP\/2 \u5f15\u5165\u4e86\u670d\u52a1\u7aef\u63a8\u9001\uff0c\u5373\u670d\u52a1\u7aef\u5411\u5ba2\u6237\u7aef\u53d1\u9001\u6bd4\u5ba2\u6237\u7aef\u6240\u8bf7\u6c42\u7684\u66f4\u591a\u7684\u6570\u636e\uff0c\u8fd9\u5141\u8bb8\u670d\u52a1\u5668\u76f4\u63a5\u63d0\u4f9b\u6d4f\u89c8\u5668\u6e32\u67d3\u9875\u9762\u6240\u9700\u7684\u8d44\u6e90\uff0c\u800c\u65e0\u987b\u6d4f\u89c8\u5668\u5728\u6536\u5230\u3001\u89e3\u6790\u9875\u9762\u540e\u518d\u63d0\u8d77\u4e00\u8f6e\u8bf7\u6c42\uff0c\u8282\u7ea6\u4e86\u52a0\u8f7d\u65f6\u95f4\u3002\u548c HTTP\/1.1 \u4e00\u6837\uff0cHTTP\/2 \u4e5f\u662f\u65e0\u72b6\u6001\u7684\u8fde\u63a5\uff0c\u6240\u4ee5\u8ba4\u8bc1\u4fe1\u606f\u90fd\u662f\u5728\u5934\u90e8\u50a8\u5b58\uff0c\u6bcf\u4e00\u4e2a\u8bf7\u6c42\u90fd\u8ba4\u8bc1\u6b64\u5934\u90e8\uff0cgRPC \u63d0\u4f9b\u4e86\u57fa\u672c\u7684 HTTP \u8ba4\u8bc1\u65b9\u5f0f\uff0c\u7528\u6237\u4e5f\u53ef\u4ee5\u57fa\u4e8e HTTP \u5934\u90e8\u4fe1\u606f\u5b9e\u73b0\u81ea\u5df1\u7684\u8ba4\u8bc1\u65b9\u5f0f\u3002<\/p>\n<h3><strong>\u603b\u7ed3<\/strong><\/h3>\n<p>gRPC \u6ca1\u6709\u50cf\u5176\u5b83\u534f\u8bae\u4e00\u6837\u4f7f\u7528 TCP \u76f4\u63a5\u8fde\u63a5\uff0c\u800c\u662f\u8003\u8651\u4e86\u66f4\u9ad8\u5c42\u7684 HTTP \u534f\u8bae \u3002\u4e3a\u4e86\u6027\u80fd\u8003\u91cf\uff0c\u5b83\u91c7\u7528\u4e86\u66f4\u65b0\u7248\u672c\u7684 HTTP\/2 \u534f\u8bae\u3002gRPC \u4f7f\u7528 Protocol Buffers \u5e8f\u5217\u5316\u534f\u8bae\uff0cProtocol Buffers \u548c\u5176\u5b83\u534f\u8bae\u4e0d\u540c\u7684\u5730\u65b9\uff0c\u5728\u4e8e\u5b83\u9700\u8981\u4e8b\u5148\u5b9a\u4e49\u597d\u6d88\u606f\u5185\u5bb9\uff0c\u7136\u540e\u901a\u8fc7\u81ea\u52a8\u4ee3\u7801\u751f\u6210\u5de5\u5177\u6765\u751f\u6210\u5e8f\u5217\u5316\u548c\u53cd\u5e8f\u5217\u5316\u4ee3\u7801\u3002\u8fd9\u79cd\u65b9\u5f0f\u5c11\u4e86\u4e00\u4e9b\u7075\u6d3b\u6027\uff0c\u66f4\u591a\u662f\u57fa\u4e8e\u6027\u80fd\u65b9\u9762\u7684\u8003\u91cf\u3002<\/p>\n<h2><strong>RQData<\/strong><\/h2>\n<p>RQData \u91cf\u5316\u4ea4\u6613\u4e2d\u6700\u57fa\u7840\u7684\u6570\u636e\u5de5\u5177\uff0c\u5b83\u63d0\u4f9b\u4e86\u4e00\u4e2a\u201c\u50bb\u74dc\u5f0f\u201d\u7684\u6570\u636e\u83b7\u53d6\u65b9\u6848\uff0c\u7528\u6237\u53ef\u4ee5\u8f7b\u6613\u5730\u5728\u672c\u5730\u4f7f\u7528 Ricequant \u5b58\u50a8\u5728\u4e91\u7aef\u7684\u91d1\u878d\u6570\u636e\u3002\u8fd9\u4e2a\u83b7\u53d6\u6570\u636e\u7684\u8fc7\u7a0b\u4e5f\u9700\u8981\u601d\u8003\uff1a\u5982\u4f55\u8bbe\u8ba1\u5e8f\u5217\u5316\u534f\u8bae\u548c\u8fde\u63a5\u534f\u8bae\u624d\u80fd\u4f7f\u6570\u636e\u7684\u83b7\u53d6\u5c3d\u53ef\u80fd\u5feb\u800c\u4e14\u517c\u5177\u7075\u6d3b\u6027\u3002\u63a5\u4e0b\u6765\u6211\u4eec\u4e00\u4e00\u5206\u6790\u3002<\/p>\n<h3><strong>\u5e8f\u5217\u5316\u534f\u8bae<\/strong><\/h3>\n<p>RQData \u7684\u6570\u636e\u591a\u4e14\u6742\uff0c\u7075\u6d3b\u6027\u662f\u5fc5\u987b\u8981\u8003\u8651\u7684\u2014\u2014\u4e00\u5f00\u59cb\u8003\u8651\u5e8f\u5217\u5316\u534f\u8bae\u7684\u65f6\u5019\u5c31\u628a Prototol Buffers \u8fd9\u6837\u7684\u9700\u8981\u9884\u5148\u5b9a\u4e49\u597d\u7ed3\u6784\u4e14\u81ea\u52a8\u751f\u6210\u4ee3\u7801\u7684\u5e8f\u5217\u5316\u5de5\u5177\u7ed9\u5426\u51b3\u4e86\u3002\u6700\u521d\u7684\u9009\u62e9\u662f JSON\uff0c\u4f46\u662f JSON \u7684\u901f\u5ea6\u6bd4\u8f83\u6162\uff0c\u800c\u4e14\u652f\u6301\u7684\u7c7b\u578b\u4e5f\u4e0d\u591f\u4e30\u5bcc\uff0c\u6240\u4ee5\u6700\u540e\u6211\u4eec\u9009\u5b9a\u4e86\u4e00\u4e2a\u6bd4\u8f83\u65b0\u7684\u5e8f\u5217\u5316\u534f\u8bae MessagePack\uff0c\u8fd9\u4e2a\u5e8f\u5217\u5316\u534f\u8bae\u6ee1\u8db3\u6211\u4eec\u7684\u9700\u6c42\u3002<\/p>\n<p>MessagePack \u652f\u6301\u7684\u7c7b\u578b\u6bd4\u8f83\u591a\uff0c\u4e3b\u8981\u6709\u4ee5\u4e0b\u51e0\u4e2a\uff1a<\/p>\n<ol>\n<li>\u6574\u578b\u6570\u5b57<\/li>\n<li>\u7a7a\u503c\uff0c\u8868\u793a\u4e0d\u5b58\u5728<\/li>\n<li>\u903b\u8f91\u771f\u548c\u903b\u8f91\u5047<\/li>\n<li>\u6d6e\u70b9\u6570\u8868\u793a\u7684\u5c0f\u6570<\/li>\n<li>\u5b57\u7b26\u4e32<\/li>\n<li>\u5b57\u8282\u6570\u7ec4<\/li>\n<li>\u5217\u8868<\/li>\n<li>\u54c8\u5e0c\u8868<\/li>\n<li>\u6269\u5c55\u7c7b\u578b\uff0c\u81ea\u5df1\u5b9a\u4e49<\/li>\n<\/ol>\n<p>MessagePack \u901a\u8fc7\u6bcf\u4e00\u4e2a\u5143\u7d20\u5b57\u8282\u5e8f\u5217\u7684\u7b2c\u4e00\u4e2a\u5b57\u8282\u6765\u533a\u5206\u4e0d\u540c\u7684\u7c7b\u578b\uff0c-128 \u5230-1 \u8868\u793a\u7cfb\u7edf\u5b9a\u4e49\u7684\u7c7b\u578b\uff0c\u5bf9\u4e8e 0 \u5230 127\uff0c\u7528\u6237\u53ef\u4ee5\u5b9a\u4e49\u81ea\u5df1\u7684\u6269\u5c55\u7c7b\u578b\uff0c\u4f46\u9700\u8981\u81ea\u5df1\u7f16\u5199\u7f16\u7801\u548c\u89e3\u7801\u4ee3\u7801\u3002\u57fa\u672c\u6570\u636e\u7ec4\u7ec7\u6210\uff1a<\/p>\n<pre><code>+--------+---------------+-------------------+ |  \u7c7b\u578b   |\u957f\u5ea6\u4fe1\u606f\uff08\u53ef\u9009\uff09|   \u6570\u636e\u5185\u5bb9\uff08\u53ef\u9009\uff09  | +--------+---------------+-------------------+ <\/code><\/pre>\n<p>\u6574\u578b\u548c\u6d6e\u70b9\u6ca1\u6709\u957f\u5ea6\u4fe1\u606f\uff0c\u4e0d\u540c\u5927\u5c0f\u7684\u6570\u5b57\u6309\u7167\u7c7b\u578b\u5b57\u6bb5\u6765\u533a\u5206\u5177\u4f53\u9700\u8981\u591a\u5c11\u5b57\u8282\u5b58\u50a8\uff0c\u6bcf\u4e00\u79cd\u6570\u5b57\u7c7b\u578b\u5bf9\u5e94\u7684\u6570\u636e\u5185\u5bb9\u5927\u5c0f\u90fd\u662f\u56fa\u5b9a\u7684\uff0c\u6700\u5927\u652f\u6301 8 \u4e2a\u5b57\u8282\u7684\u6570\u5b57\u5927\u5c0f\uff0c\u591a\u5b57\u8282\u6309\u5b57\u8282\u5e8f\u5927\u7aef\u7f16\u7801\u3002\u903b\u8f91\u503c\u548c\u7a7a\u503c\u6ca1\u6709\u957f\u5ea6\u4fe1\u606f\u548c\u6570\u636e\u5185\u5bb9\uff0c\u9760\u7c7b\u578b\u5c31\u53ef\u4ee5\u63a8\u65ad\u51fa\u5177\u4f53\u7684\u503c\u3002\u5176\u5b83\u7c7b\u578b\u7684\u6570\u636e\u90fd\u65e2\u6709\u957f\u5ea6\u4fe1\u606f\u53c8\u6709\u6570\u636e\u5185\u5bb9\u3002\u9700\u8981\u989d\u5916\u6ce8\u610f\u7684\u662f\uff0c\u54c8\u5e0c\u8868\u7684\u6570\u636e\u5185\u5bb9\u662f\u957f\u5ea6\u4fe1\u606f\u7684\u4e24\u500d\uff0c\u56e0\u4e3a\u6bcf\u4e2a\u54c8\u5e0c\u8868\u5143\u7d20\u6709\u4e24\u6bb5\u6570\u636e\uff0c\u6570\u636e\u5185\u5bb9\u6309\u7167\u952e\u548c\u503c\u7684\u987a\u5e8f\u6309\u5e8f\u7f16\u7801\u3002<\/p>\n<h3><strong>\u4f20\u8f93\u534f\u8bae<\/strong><\/h3>\n<p>RQData \u662f\u57fa\u4e8e TCP \u7684\u957f\u8fde\u63a5\u901a\u8baf\u534f\u8bae\uff0c\u8bf7\u6c42\u548c\u8fd4\u56de\u534f\u8bae\u76f8\u540c\uff0c\u534f\u8bae\u5934\u5982\u4e0b\uff1a<\/p>\n<pre><code>--------------------------------------------------------------     2 bytes    |1 byte |1 byte |            4 bytes              | -------------------------------------------------------------- |   Msg Type   |   ST  |   CM  |           Body Length           | --------------------------------------------------------------  Msg Type: \u6d88\u606f\u7c7b\u578b ST: Serialization Type, \u5e8f\u5217\u5316\u65b9\u5f0f CM: Compression Method, \u538b\u7f29\u65b9\u5f0f Body Length: \u5305\u4f53\u957f\u5ea6\uff0c\u4e0d\u5305\u542b\u5934 <\/code><\/pre>\n<p>RQData \u7684\u534f\u8bae\u5934\u4e00\u5171\u5360 8 \u4e2a\u5b57\u8282\uff0c\u524d 2 \u4e2a\u5b57\u8282\u662f\u6d88\u606f\u7684\u7c7b\u578b\uff0c\u73b0\u5171\u6709 8 \u79cd\u6d88\u606f\u7c7b\u578b\uff1a<\/p>\n<ol>\n<li>\u63e1\u624b\u6d88\u606f\uff0c\u7528\u6237\u5efa\u7acb\u7b80\u4ecb\u7684\u5ba2\u6237\u7aef\u4e8e\u670d\u52a1\u7aef\u534f\u5546<\/li>\n<li>\u8bf7\u6c42\u6d88\u606f<\/li>\n<li>\u72ec\u7acb\u8fd4\u56de\u6d88\u606f\uff0c\u8fd4\u56de\u4ec5\u9700\u8bfb\u53d6\u8fd9\u4e00\u6761\u5c31\u597d<\/li>\n<li>\u9519\u8bef\u6d88\u606f<\/li>\n<li>\u6d41\u5f0f\u6d88\u606f\u5f00\u59cb\uff0c\u65e0\u5185\u5bb9\uff0c\u8868\u660e\u4e00\u4e2a\u8fd4\u56de\u6d41\u7684\u5f00\u59cb<\/li>\n<li>\u6d41\u5f0f\u6d88\u606f\u7ed3\u675f\uff0c\u65e0\u5185\u5bb9\uff0c\u8868\u793a\u4e00\u4e2a\u8fd4\u56de\u6d41\u7684\u7ed3\u675f<\/li>\n<li>\u666e\u901a\u6d41\u5f0f\u6d88\u606f<\/li>\n<li>\u8868\u7ed3\u6784\u7684\u6d41\u5f0f\u6d88\u606f<\/li>\n<\/ol>\n<p>\u524d 4 \u79cd\u6d88\u606f\u548c\u524d\u9762\u63d0\u5230\u7684\u4e00\u95ee\u4e00\u7b54\u5f0f\u901a\u8baf\u534f\u8bae\u57fa\u672c\u7c7b\u4f3c\uff0c\u540e\u9762\u7c7b\u578b\u7684\u6d88\u606f\u5b9e\u73b0\u4e86\u6570\u636e\u7684\u6d41\u5f0f\u4f20\u8f93\uff0c\u6bd4\u5982\u5728\u83b7\u53d6\u6bcf\u65e5\u7684\u884c\u60c5\u6570\u636e\u65f6\u5f97\u4ee5\u6309\u7167\u4ea4\u6613\u65e5\u9010\u65e5\u8fd4\u56de\u884c\u60c5\u6570\u636e\u3001\u5ba2\u6237\u7aef\u6536\u5230\u6bcf\u65e5\u7684\u6570\u636e\u5f97\u4ee5\u89e3\u6790\u800c\u4e0d\u5fc5\u7b49\u5230\u6240\u6709\u6570\u636e\u8fd4\u56de\u3001\u670d\u52a1\u7aef\u5f97\u4ee5\u6309\u65e5\u51c6\u5907\u6570\u636e\u8fdb\u800c\u51cf\u8f7b\u538b\u529b\u3002\u6d41\u5f0f\u7684\u5185\u5bb9\u6709\u4e24\u79cd\uff1a\u4e00\u79cd\u662f\u666e\u901a\u6570\u636e\uff0c\u6309\u7167\u6b63\u5e38\u7684\u5e8f\u5217\u5316\u65b9\u5f0f\u8fd4\u56de\uff1b\u4e00\u79cd\u662f\u8868\u7ed3\u6784\u7684\u6570\u636e\uff0c\u4e3a\u4e86\u51cf\u5c11\u4f20\u8f93\u6570\u636e\u91cf\u800c\u8bbe\u8ba1\u3002\u5728\u8868\u7ed3\u6784\u6570\u636e\u6d41\u4e2d\uff0c\u6d41\u7684\u7b2c\u4e00\u6761\u5185\u5bb9\u6570\u636e\u662f\u8868\u7684\u5b57\u6bb5\u5217\u8868\uff0c\u540e\u9762\u7684\u6d41\u6570\u636e\u90fd\u662f\u8868\u7684\u5177\u4f53\u5185\u5bb9\uff0c\u5728\u53cd\u5e8f\u5217\u5316\u7684\u65f6\u5019\uff0c\u6309\u5b57\u6bb5\u5217\u8868\u548c\u6d41\u7684\u5185\u5bb9\u7ec4\u88c5\u6210\u4e00\u4e2a\u5b57\u5178\uff0c\u6570\u636e\u4f20\u8f93\u5b8c\u6bd5\u540e\u628a\u8fd9\u4e9b\u5b57\u5178\u6309\u5e8f\u7ec4\u5408\u6210\u4e00\u4e2a\u5927\u7684\u5217\u8868\u8fd4\u56de\uff0c\u8fd9\u6837\u5728\u6570\u636e\u4f20\u8f93\u7684\u65f6\u5019\uff0c\u5c31\u53ea\u9700\u8981\u4f20\u8f93\u4e00\u6b21\u5b57\u6bb5\u5217\u8868\uff0c\u5927\u5927\u51cf\u5c11\u4e86\u6570\u636e\u7684\u4f20\u8f93\u91cf\u3002RQData \u7684\u4f20\u8f93\u534f\u8bae\u4e2d\u4e5f\u5305\u542b\u5e8f\u5217\u5316\u534f\u8bae\u5b57\u6bb5\u548c\u538b\u7f29\u65b9\u5f0f\u5b57\u6bb5\uff0c\u76ee\u524d\u652f\u6301 JSON \u548c MessagePack \u4e24\u79cd\u5e8f\u5217\u5316\u65b9\u5f0f\u548c zlib \u548c Brotli \u4e24\u79cd\u538b\u7f29\u65b9\u5f0f\u3002Brotli \u662f\u73b0\u4ee3 HTTP \u534f\u8bae\u6240\u63a8\u8350\u7684\u538b\u7f29\u7b97\u6cd5\uff0c\u9488\u5bf9\u6587\u672c\u7684\u538b\u7f29\u7387\u548c\u538b\u7f29\u901f\u5ea6\u90fd\u6bd4\u4f20\u7edf\u7684 HTTP \u538b\u7f29\u7b97\u6cd5\u5feb\u5f88\u591a\u3002<\/p>\n<h3><strong>\u603b\u7ed3<\/strong><\/h3>\n<p>RQData \u4f7f\u7528\u4e86 MessagePack \u4f5c\u4e3a\u5e8f\u5217\u5316\u534f\u8bae\uff0c\u867d\u7136\u727a\u7272\u4e86\u53ef\u8bfb\u6027\uff0c\u4f46\u662f\u80fd\u5b9e\u73b0\u9ad8\u6548\u3001\u7075\u6d3b\u7684\u6570\u636e\u4f20\u8f93\u529f\u80fd\uff0c\u4e14\u6027\u80fd\u65b9\u9762\u8f83 JSON 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src=\"http:\/\/4563.org\/wp-content\/uploads\/2021\/04\/20210401_60660c032c08e.jpg\" alt=\"\u6280\u672f\u63ed\u79d8 | \u5982\u4f55\u8bbe\u8ba1 RQData \u901a\u8baf\u534f\u8bae\" \/><\/p>\n<p>[\u8c03\u53d6\u5355\u80a1\u7968 10 \u5e74\u65e5\u7ebf\u6570\u636e\u8017\u65f6 50 \u6beb\u79d2\u5de6\u53f3] <\/p>\n<p><img decoding=\"async\" loading=\"lazy\" referrerpolicy=\"no-referrer\" rel=\"noreferrer\" src=\"http:\/\/4563.org\/wp-content\/uploads\/2021\/04\/20210401_60660c07b2fcd.png\" alt=\"\u6280\u672f\u63ed\u79d8 | \u5982\u4f55\u8bbe\u8ba1 RQData \u901a\u8baf\u534f\u8bae\" \/><\/p>\n<p>[\u8c03\u53d6\u5168\u5e02\u573a\u80a1\u7968 10 \u5e74\u65e5\u7ebf\u6570\u636e\u8017\u65f6 50 \u79d2\u5de6\u53f3] <\/p>\n<p><img decoding=\"async\" loading=\"lazy\" referrerpolicy=\"no-referrer\" rel=\"noreferrer\" src=\"http:\/\/4563.org\/wp-content\/uploads\/2021\/04\/20210401_60660c0d59636.png\" alt=\"\u6280\u672f\u63ed\u79d8 | \u5982\u4f55\u8bbe\u8ba1 RQData \u901a\u8baf\u534f\u8bae\" 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