\u76ee\u5f55<\/p>\n
\n
\u535a\u5ba2\u524d\u8a00<\/p>\n
\u4e00\u3001\u524d\u7f6e\u5fc5\u8bfb<\/p>\n
\u8ba4\u77e5 1：HTTP \u662f\u300c\u5e94\u7528\u5c42\u534f\u8bae\u300d，\u57fa\u4e8e TCP \u4f20\u8f93<\/p>\n
\u8ba4\u77e5 2：HTTP\/1.1 \u8bf7\u6c42\u7684\u5b8c\u6574\u7ed3\u6784<\/p>\n
\u8ba4\u77e5 3：HTTP\/1.1 \u54cd\u5e94\u7684\u5b8c\u6574\u7ed3\u6784<\/p>\n
\u8ba4\u77e5 4：HTTP \u7684 2 \u4e2a\u6838\u5fc3\u6982\u5ff5（\u957f\u77ed\u8fde\u63a5 + MIME \u7c7b\u578b）<\/p>\n
1. \u957f\u77ed\u8fde\u63a5（HTTP\/1.1 \u7684\u9ed8\u8ba4\u89c4\u5219）<\/p>\n
2. MIME \u7c7b\u578b（\u5a92\u4f53\u7c7b\u578b）<\/p>\n
\u4e8c\u3001\u6e90\u7801\u6574\u4f53\u7ed3\u6784\u68b3\u7406<\/p>\n
\u4e09\u3001\u9010\u6a21\u5757\u6e90\u7801\u89e3\u8bfb<\/p>\n
\u6a21\u5757 0：\u5168\u5c40\u5b8f\u5b9a\u4e49 + \u6838\u5fc3\u6620\u5c04\u8868<\/p>\n
\u4ee3\u7801\u793a\u4f8b（\u5168\u6ce8\u91ca\u7248）<\/p>\n
\u6838\u5fc3\u89e3\u8bfb：<\/p>\n
\u6a21\u5757 1：Util \u901a\u7528\u5de5\u5177\u7c7b（\u6e90\u7801 80~220 \u884c）<\/p>\n
\u6a21\u5757\u6838\u5fc3\u5b9a\u4f4d<\/p>\n
\u6838\u5fc3\u8bbe\u8ba1\u601d\u60f3<\/p>\n
\u6838\u5fc3\u51fd\u6570\u5206\u7c7b\u89e3\u8bfb<\/p>\n
\u7b2c\u4e00\u7c7b：\u5b57\u7b26\u4e32\u5904\u7406\u6838\u5fc3\u51fd\u6570<\/p>\n
\u7b2c\u4e8c\u7c7b：\u6587\u4ef6\u64cd\u4f5c\u6838\u5fc3\u51fd\u6570<\/p>\n
\u7b2c\u4e09\u7c7b：URL \u7f16\u89e3\u7801\u6838\u5fc3\u51fd\u6570<\/p>\n
\u7b2c\u56db\u7c7b：HTTP \u4e13\u5c5e\u5de5\u5177\u51fd\u6570<\/p>\n
\u7b2c\u4e94\u7c7b：\u5b89\u5168\u6821\u9a8c\u6838\u5fc3\u51fd\u6570<\/p>\n
\u4ee3\u7801\u793a\u4f8b（\u5168\u6ce8\u91ca\u7248）<\/p>\n
\u77e5\u8bc6\u70b9\u8865\u5145<\/p>\n
\u603b\u7ed3<\/p>\n
\u6a21\u5757 2：HttpRequest \u7c7b + HttpResponse \u7c7b（\u6e90\u7801 220~320 \u884c）\u3010HTTP \u7684\u7ed3\u6784\u5316\u6570\u636e\u5c01\u88c5，\u89e3\u6790\u4e0e\u54cd\u5e94\u7684\u8f7d\u4f53\u3011<\/p>\n
\u5171\u540c\u8bbe\u8ba1\u7279\u70b9<\/p>\n
HttpRequest \u7c7b：\u5c01\u88c5\u300cHTTP \u8bf7\u6c42\u300d\u7684\u6240\u6709\u6570\u636e<\/p>\n
\u6838\u5fc3\u6210\u5458\u51fd\u6570<\/p>\n
\u6838\u5fc3\u4f5c\u7528<\/p>\n
HttpResponse \u7c7b：\u5c01\u88c5\u300cHTTP \u54cd\u5e94\u300d\u7684\u6240\u6709\u6570\u636e<\/p>\n
\u6838\u5fc3\u6210\u5458\u53d8\u91cf<\/p>\n
\u6838\u5fc3\u6210\u5458\u51fd\u6570<\/p>\n
\u6838\u5fc3\u4f5c\u7528<\/p>\n
\u4ee3\u7801\u793a\u4f8b（\u5168\u6ce8\u91ca\u7248）<\/p>\n
\u77e5\u8bc6\u70b9\u8865\u5145<\/p>\n
\u4e24\u4e2a\u7c7b\u7684\u6838\u5fc3\u603b\u7ed3<\/p>\n
\u6a21\u5757 3：HttpContext \u7c7b（\u6e90\u7801 320~480 \u884c）<\/p>\n
\u6a21\u5757\u6838\u5fc3\u5b9a\u4f4d & \u8bbe\u8ba1\u80cc\u666f<\/p>\n
\u6838\u5fc3\u8bbe\u8ba1\u601d\u60f3：\u72b6\u6001\u673a + \u5206\u9636\u6bb5\u89e3\u6790<\/p>\n
\u6838\u5fc3\u6210\u5458\u4e0e\u51fd\u6570\u89e3\u8bfb<\/p>\n
\u4ee3\u7801\u793a\u4f8b（\u5168\u6ce8\u91ca\u7248）<\/p>\n
\u77e5\u8bc6\u70b9\u8865\u5145<\/p>\n
HttpContext \u7c7b\u603b\u7ed3<\/p>\n
\u6a21\u5757 4：HttpServer \u6838\u5fc3\u7c7b（\u6e90\u7801 480~ \u672b\u5c3e）<\/p>\n
\u6a21\u5757\u6838\u5fc3\u5b9a\u4f4d<\/p>\n
\u6838\u5fc3\u8bbe\u8ba1\u601d\u60f3<\/p>\n
\u6838\u5fc3\u6210\u5458\u4e0e\u51fd\u6570\u89e3\u8bfb<\/p>\n
\u6838\u5fc3\u4eae\u70b9：\u81ea\u52a8\u533a\u5206\u300c\u9759\u6001\u8d44\u6e90\u300d\u548c\u300c\u52a8\u6001\u63a5\u53e3\u300d<\/p>\n
\u4ee3\u7801\u793a\u4f8b（\u5168\u6ce8\u91ca\u7248）<\/p>\n
\u77e5\u8bc6\u70b9\u8865\u5145<\/p>\n
\u603b\u7ed3<\/p>\n
\u56db\u3001\u8fd9\u4efd HTTP \u6e90\u7801\u7684\u300c\u5de5\u4e1a\u7ea7\u8bbe\u8ba1\u4eae\u70b9\u300d<\/p>\n
\u4eae\u70b9 1：\u5b8c\u7f8e\u89e3\u51b3 TCP \u7c98\u5305 \/ \u534a\u5305\u95ee\u9898 \u2192 \u5206\u9636\u6bb5\u72b6\u6001\u673a\u89e3\u6790<\/p>\n
\u4eae\u70b9 2：\u6781\u81f4\u7684\u5b89\u5168\u9632\u62a4 \u2192 \u9632\u76ee\u5f55\u7a7f\u8d8a\u3001\u9632\u975e\u6cd5\u8bf7\u6c42\u3001\u9632\u8d85\u957f\u6570\u636e<\/p>\n
\u4eae\u70b9 3：\u5206\u5c42\u89e3\u8026\u7684\u6a21\u5757\u5316\u8bbe\u8ba1 \u2192 \u6613\u7ef4\u62a4\u3001\u6613\u6269\u5c55\u3001\u6613\u6d4b\u8bd5<\/p>\n
\u4eae\u70b9 4：\u5168\u81ea\u52a8\u7684\u957f\u77ed\u8fde\u63a5\u5904\u7406 \u2192 \u6027\u80fd\u4f18\u5316<\/p>\n
\u4eae\u70b9 5：\u5b8c\u6574\u7684\u9519\u8bef\u5904\u7406\u4f53\u7cfb \u2192 \u9c81\u68d2\u6027\u62c9\u6ee1<\/p>\n
\u4eae\u70b9 6：\u6781\u7b80\u7684 API \u8bbe\u8ba1 \u2192 \u6613\u7528\u6027\u62c9\u6ee1<\/p>\n
\u4e94\u3001\u5b9e\u6218\u90e8\u7f72：3 \u5206\u949f\u4e0a\u624b！\u57fa\u4e8e\u8fd9\u4efd\u6e90\u7801，\u5feb\u901f\u5b9e\u73b0\u4e00\u4e2a\u5b8c\u6574\u7684 HTTP \u670d\u52a1\u5668<\/p>\n
\u8fd0\u884c\u6548\u679c<\/p>\n
\u516d\u3001\u5b8c\u6574\u7684\u8bf7\u6c42\u5904\u7406\u6d41\u7a0b<\/p>\n
\u6b65\u9aa4 1：\u5ba2\u6237\u7aef\u53d1\u8d77 HTTP \u8bf7\u6c42，\u5efa\u7acb TCP \u8fde\u63a5<\/p>\n
\u6b65\u9aa4 2：\u5ba2\u6237\u7aef\u53d1\u9001 HTTP \u6570\u636e，\u670d\u52a1\u5668\u63a5\u6536\u5e76\u5b58\u50a8\u5230 Buffer<\/p>\n
\u6b65\u9aa4 3：HttpContext \u89e3\u6790 Buffer \u4e2d\u7684\u6570\u636e，\u751f\u6210 HttpRequest \u5bf9\u8c61<\/p>\n
\u6b65\u9aa4 4：HttpServer \u8fdb\u884c\u4e1a\u52a1\u8def\u7531\u4e0e\u5904\u7406<\/p>\n
\u6b65\u9aa4 5：\u751f\u6210 HTTP \u54cd\u5e94\u5e76\u53d1\u9001\u7ed9\u5ba2\u6237\u7aef<\/p>\n
\u6b65\u9aa4 6：\u8fde\u63a5\u7ba1\u7406（\u957f\u77ed\u8fde\u63a5\u5904\u7406）<\/p>\n
\u989d\u5916\u8865\u5145：\u8d85\u65f6\u5904\u7406<\/p>\n
\u4e03\u3001\u603b\u7ed3\u4e0e\u8fdb\u9636\u5b66\u4e60\u5efa\u8bae<\/p>\n
\u535a\u5ba2\u7ed3\u5c3e<\/p>\n
\u5404\u4f4d\u5c0f\u4f19\u4f34，\u4e0a\u7bc7\u535a\u5ba2\u6211\u4eec\u7cbe\u8bfb\u4e86\u7eaf\u624b\u5199\u7684 C++ \u9ad8\u6027\u80fd Reactor \u7f51\u7edc\u670d\u52a1\u5668\u6838\u5fc3\u5e93，\u5403\u900f\u4e86 Linux \u4e0b\u975e\u963b\u585e IO\u3001epoll \u591a\u8def\u590d\u7528\u3001TCP \u8fde\u63a5\u7ba1\u7406\u7b49\u300c\u7f51\u7edc\u5c42\u6838\u5fc3\u903b\u8f91\u300d\u3002<\/p>\n
\u672c\u7bc7\u535a\u5ba2，\u6211\u4eec\u8fce\u6765\u5b9e\u6218\u843d\u5730\u7bc7 \u2014\u2014 \u5c31\u662f\u4f60\u8d34\u51fa\u7684\u8fd9\u4efd\u5b8c\u6574\u7684 HTTP\/1.1 \u670d\u52a1\u5668\u4e1a\u52a1\u5c42\u5168\u6e90\u7801！\u8fd9\u4efd\u6e90\u7801\u65e0\u4efb\u4f55\u7b2c\u4e09\u65b9\u4f9d\u8d56\u3001\u7eaf\u539f\u751f C++ \u7f16\u5199\u3001\u5de5\u4e1a\u7ea7\u6807\u51c6，\u662f\u5b8c\u5168\u57fa\u4e8e\u4e0a\u7bc7\u7684 Reactor \u7f51\u7edc\u5e93\u5b9e\u73b0\u7684\u4e0a\u5c42\u4e1a\u52a1\u5c42\u4ee3\u7801，\u4e24\u8005\u7ec4\u5408\u8d77\u6765，\u5c31\u662f\u4e00\u4e2a\u53ef\u76f4\u63a5\u7f16\u8bd1\u8fd0\u884c\u3001\u80fd\u90e8\u7f72\u4e0a\u7ebf\u3001\u652f\u6491\u751f\u4ea7\u73af\u5883\u7684\u5b8c\u6574 HTTP\/1.1 \u670d\u52a1\u5668\u3002<\/p>\n
\u8fd9\u4efd HTTP \u4e1a\u52a1\u5c42\u6e90\u7801，\u5b9e\u73b0\u4e86HTTP\/1.1 \u534f\u8bae\u7684\u6838\u5fc3\u89c4\u8303：\u5b8c\u6574\u7684 HTTP \u8bf7\u6c42\u89e3\u6790\u3001\u8bf7\u6c42\u5408\u6cd5\u6027\u6821\u9a8c\u3001URL \u7f16\u89e3\u7801\u3001\u9759\u6001\u8d44\u6e90（html\/css\/js\/png）\u90e8\u7f72\u3001\u52a8\u6001\u4e1a\u52a1\u63a5\u53e3\u8def\u7531\u3001\u957f\u77ed\u8fde\u63a5\u81ea\u52a8\u5904\u7406\u3001\u5b8c\u6574\u7684 HTTP \u72b6\u6001\u7801\u54cd\u5e94\u3001\u9632\u76ee\u5f55\u7a7f\u8d8a\u653b\u51fb\u3001MIME \u7c7b\u578b\u81ea\u52a8\u5339\u914d\u7b49\u6240\u6709\u5de5\u4e1a\u7ea7 HTTP \u670d\u52a1\u5668\u5fc5\u5907\u7684\u529f\u80fd\u3002<\/p>\n
\u66f4\u91cd\u8981\u7684\u662f，\u8fd9\u4efd\u6e90\u7801\u7684\u7f16\u5199\u98ce\u683c\u662f\u6781\u81f4\u7684\u5206\u5c42\u89e3\u8026\u3001\u9ad8\u5185\u805a\u4f4e\u8026\u5408，\u4ee3\u7801\u903b\u8f91\u6e05\u6670\u5230\u300c\u6309\u6a21\u5757\u770b\u5c31\u80fd\u61c2\u300d，\u6ca1\u6709\u4efb\u4f55\u5197\u4f59\u548c\u6666\u6da9\u7684\u5199\u6cd5，\u662f C++ \u7f51\u7edc\u7f16\u7a0b\u4ece\u300c\u7f51\u7edc\u5c42\u300d\u5230\u300c\u4e1a\u52a1\u5c42\u300d\u6253\u901a\u7684\u6700\u4f73\u5b9e\u6218\u7d20\u6750\u3002<\/p>\n
\u9605\u8bfb\u524d\u63d0：\u770b\u8fc7\u4e0a\u7bc7 Reactor \u7f51\u7edc\u5e93\u7684\u89e3\u8bfb（\u77e5\u9053 Buffer\u3001Connection\u3001TcpServer \u7684\u6838\u5fc3\u4f5c\u7528\u5373\u53ef），\u61c2 C++ \u57fa\u7840\u8bed\u6cd5，\u65e0\u9700 HTTP \u534f\u8bae\u7684\u524d\u7f6e\u77e5\u8bc6 \u2014\u2014 \u672c\u6587\u6240\u6709 HTTP \u4e13\u4e1a\u672f\u8bed\u90fd\u4f1a\u7528\u300c\u5927\u767d\u8bdd\u300d\u89e3\u91ca，\u96f6\u57fa\u7840\u5b8c\u5168\u65e0\u969c\u788d\u9605\u8bfb\u3002<\/p>\n
\u6e90\u7801\u7279\u70b9：\u7eaf C++11 \u7f16\u5199\u3001\u65e0\u7b2c\u4e09\u65b9\u5e93\u3001\u5206\u5c42\u8bbe\u8ba1\u3001\u6a21\u5757\u5316\u6e05\u6670\u3001\u5185\u5b58\u5b89\u5168\u3001\u9c81\u68d2\u6027\u5f3a\u3001\u53ef\u76f4\u63a5\u7f16\u8bd1\u8fd0\u884c\u3001\u6613\u6269\u5c55\u6613\u7ef4\u62a4\u3002<\/p>\n
\u8fd9\u4efd\u6e90\u7801\u662fHTTP\/1.1 \u534f\u8bae\u7684\u7eaf\u539f\u751f\u5b9e\u73b0，\u5728\u89e3\u8bfb\u6e90\u7801\u524d，\u5fc5\u987b\u5148\u641e\u61c2 4 \u4e2a HTTP \u6700\u6838\u5fc3\u7684\u57fa\u7840\u6982\u5ff5，\u65e0\u4efb\u4f55\u590d\u6742\u672f\u8bed，\u7eaf\u5927\u767d\u8bdd\u89e3\u91ca，\u8fd9\u662f\u8bfb\u61c2\u8fd9\u4efd\u6e90\u7801\u7684\u300c\u94a5\u5319\u300d，\u4e5f\u662f\u6240\u6709 HTTP \u670d\u52a1\u5668\u7684\u901a\u7528\u57fa\u7840，\u7f3a\u4e00\u4e0d\u53ef：<\/p>\n
HTTP \u534f\u8bae\u662f\u5efa\u7acb\u5728 TCP \u4e4b\u4e0a\u7684\u5e94\u7528\u5c42\u534f\u8bae \u2014\u2014 \u5ba2\u6237\u7aef\u548c\u670d\u52a1\u5668\u5148\u5efa\u7acb TCP \u8fde\u63a5，\u518d\u901a\u8fc7\u8fd9\u4e2a\u8fde\u63a5\u6536\u53d1 HTTP \u6570\u636e，\u6570\u636e\u4f20\u8f93\u5b8c\u6210\u540e，\u6839\u636e\u300c\u957f\u77ed\u8fde\u63a5\u300d\u89c4\u5219\u51b3\u5b9a\u662f\u5426\u5173\u95ed TCP \u8fde\u63a5\u3002<\/p>\n
\u6211\u4eec\u4e0a\u7bc7\u7684 Reactor \u7f51\u7edc\u5e93，\u8d1f\u8d23\u7684\u662f\u5e95\u5c42 TCP \u8fde\u63a5\u7684\u5efa\u7acb\u3001\u6570\u636e\u7684\u6536\u53d1\u3001\u8fde\u63a5\u7684\u7ba1\u7406；\u672c\u7bc7\u7684 HTTP \u6e90\u7801，\u8d1f\u8d23\u7684\u662f\u5bf9 TCP \u6536\u53d1\u7684\u4e8c\u8fdb\u5236\u6570\u636e，\u6309 HTTP \u534f\u8bae\u89c4\u5219\u89e3\u6790\u6210\u8bf7\u6c42\u3001\u6309\u89c4\u5219\u751f\u6210\u54cd\u5e94\u3002<\/p>\n
\u7b80\u5355\u8bf4：\u7f51\u7edc\u5c42\u8d1f\u8d23\u300c\u4f20\u6570\u636e\u300d，\u4e1a\u52a1\u5c42\u8d1f\u8d23\u300c\u61c2\u6570\u636e\u300d\u3002<\/p>\n
\u5ba2\u6237\u7aef\u53d1\u7ed9\u670d\u52a1\u5668\u7684 HTTP \u8bf7\u6c42，\u662f\u4e25\u683c\u56fa\u5b9a\u7684\u6587\u672c\u683c\u5f0f，\u4e00\u4efd\u5408\u6cd5\u7684 HTTP \u8bf7\u6c42\u5fc5\u987b\u5305\u542b：<\/p>\n
\u3010\u8bf7\u6c42\u884c\u3011 GET \/index.html?name=test HTTP\/1.1\\\\r\\\\n
\n\u3010\u8bf7\u6c42\u5934\u3011 Host: localhost:8080\\\\r\\\\n
\n Connection: keep-alive\\\\r\\\\n
\n Content-Length: 0\\\\r\\\\n
\n\u3010\u7a7a\u884c\u3011 \\\\r\\\\n
\n\u3010\u8bf7\u6c42\u4f53\u3011 username=admin&password=123456 （\u53ef\u9009，POST\u8bf7\u6c42\u624d\u6709，GET\u8bf7\u6c42\u65e0\u4f53） <\/p>\n
\u8fd9\u4efd\u6e90\u7801\u7684\u6838\u5fc3\u5de5\u4f5c\u4e4b\u4e00，\u5c31\u662f\u628a TCP \u6536\u5230\u7684\u4e8c\u8fdb\u5236\u6570\u636e，\u6309\u8fd9\u4e2a\u683c\u5f0f\u89e3\u6790\u6210\u7ed3\u6784\u5316\u7684\u8bf7\u6c42\u5bf9\u8c61\u3002<\/p>\n
\u670d\u52a1\u5668\u5904\u7406\u5b8c\u8bf7\u6c42\u540e，\u8fd4\u56de\u7ed9\u5ba2\u6237\u7aef\u7684 HTTP \u54cd\u5e94，\u4e5f\u662f\u4e25\u683c\u56fa\u5b9a\u7684\u6587\u672c\u683c\u5f0f，\u7ed3\u6784\u5982\u4e0b：<\/p>\n
\u3010\u54cd\u5e94\u884c\u3011 HTTP\/1.1 200 OK\\\\r\\\\n
\n\u3010\u54cd\u5e94\u5934\u3011 Content-Type: text\/html\\\\r\\\\n
\n Content-Length: 1024\\\\r\\\\n
\n Connection: keep-alive\\\\r\\\\n
\n\u3010\u7a7a\u884c\u3011 \\\\r\\\\n
\n\u3010\u54cd\u5e94\u4f53\u3011 <html><body><h1>Hello HTTP<\/h1><\/body><\/html> （\u6838\u5fc3\u5185\u5bb9，\u7f51\u9875\/\u56fe\u7247\/\u63a5\u53e3\u6570\u636e） <\/p>\n
\u670d\u52a1\u5668\u4f1a\u6839\u636e\u5ba2\u6237\u7aef\u8bf7\u6c42\u5934\u4e2d\u7684Connection\u5b57\u6bb5，\u81ea\u52a8\u5224\u65ad\u662f\u957f\u8fde\u63a5\u8fd8\u662f\u77ed\u8fde\u63a5，\u8fd9\u4efd\u6e90\u7801\u4e2d\u5df2\u7ecf\u5b9e\u73b0\u4e86\u5168\u81ea\u52a8\u7684\u957f\u77ed\u8fde\u63a5\u5904\u7406\u903b\u8f91\u3002<\/p>\n
MIME \u7c7b\u578b\u662f\u300c\u6587\u4ef6\u7684\u7f51\u7edc\u8eab\u4efd\u8bc1\u300d，\u683c\u5f0f\u5982text\/html\u3001image\/png\u3001application\/json，\u4f5c\u7528\u662f\u544a\u8bc9\u5ba2\u6237\u7aef\u300c\u670d\u52a1\u5668\u8fd4\u56de\u7684\u54cd\u5e94\u4f53\u662f\u4ec0\u4e48\u7c7b\u578b\u7684\u6587\u4ef6\u300d，\u5ba2\u6237\u7aef\u624d\u80fd\u6b63\u786e\u89e3\u6790（\u6bd4\u5982 html \u6587\u4ef6\u5c31\u6e32\u67d3\u7f51\u9875，png \u6587\u4ef6\u5c31\u663e\u793a\u56fe\u7247）\u3002\u6bd4\u5982：.html\u6587\u4ef6\u5bf9\u5e94text\/html，.png\u5bf9\u5e94image\/png，.js\u5bf9\u5e94text\/javascript，\u8fd9\u4efd\u6e90\u7801\u4e2d\u5185\u7f6e\u4e86\u5b8c\u6574\u7684 MIME \u6620\u5c04\u8868，\u80fd\u81ea\u52a8\u6839\u636e\u6587\u4ef6\u540e\u7f00\u5339\u914d MIME \u7c7b\u578b\u3002<\/p>\n
\u8fd9\u4efd HTTP \u4e1a\u52a1\u5c42\u6e90\u7801\u662f\u6781\u81f4\u7684\u300c\u5206\u5c42\u89e3\u8026\u3001\u6a21\u5757\u5316\u8bbe\u8ba1\u300d，\u662f\u5de5\u4e1a\u7ea7 C++ \u4ee3\u7801\u7684\u6807\u51c6\u5178\u8303，\u6240\u6709\u7c7b\u7684\u804c\u8d23\u5212\u5206\u6e05\u6670，\u65e0\u4efb\u4f55\u4ea4\u53c9\u4f9d\u8d56，\u6e90\u7801\u7684\u6574\u4f53\u7ed3\u6784\u4e25\u683c\u9075\u5faa\u300c\u5de5\u5177\u5c42 \u2192 \u6570\u636e\u5c42 \u2192 \u89e3\u6790\u5c42 \u2192 \u4e1a\u52a1\u5c42\u300d\u7684\u9012\u8fdb\u5173\u7cfb，\u6309\u8fd9\u4e2a\u987a\u5e8f\u89e3\u8bfb，\u7edd\u5bf9\u4e0d\u4f1a\u4e71，\u6bcf\u4e2a\u6a21\u5757\u5404\u53f8\u5176\u804c，\u5b8c\u7f8e\u4f53\u73b0\u300c\u5355\u4e00\u804c\u8d23\u539f\u5219\u300d：<\/p>\n
1. \u5168\u5c40\u5e38\u91cf\u5b9a\u4e49（\u7f6e\u9876）\u2192 HTTP\u72b6\u6001\u7801\u6620\u5c04\u8868 + MIME\u7c7b\u578b\u6620\u5c04\u8868，\u6240\u6709\u6a21\u5757\u5171\u7528
\n2. Util \u901a\u7528\u5de5\u5177\u7c7b \u2192 \u5c01\u88c5\u6240\u6709\u901a\u7528\u5de5\u5177\u51fd\u6570：\u5b57\u7b26\u4e32\u5206\u5272\u3001\u6587\u4ef6\u8bfb\u5199\u3001URL\u7f16\u89e3\u7801\u3001\u8def\u5f84\u6821\u9a8c\u3001MIME\u83b7\u53d6\u7b49，\u6240\u6709\u6a21\u5757\u7684\u57fa\u7840\u4f9d\u8d56
\n3. HttpRequest \u7c7b \u2192 \u5c01\u88c5\u300cHTTP\u8bf7\u6c42\u300d\u7684\u7ed3\u6784\u5316\u6570\u636e，\u5b58\u50a8\u8bf7\u6c42\u884c\u3001\u8bf7\u6c42\u5934\u3001\u67e5\u8be2\u53c2\u6570\u3001\u8bf7\u6c42\u4f53\u7b49
\n4. HttpResponse \u7c7b \u2192 \u5c01\u88c5\u300cHTTP\u54cd\u5e94\u300d\u7684\u7ed3\u6784\u5316\u6570\u636e，\u5b58\u50a8\u72b6\u6001\u7801\u3001\u54cd\u5e94\u5934\u3001\u54cd\u5e94\u4f53\u3001\u91cd\u5b9a\u5411\u4fe1\u606f\u7b49
\n5. HttpContext \u7c7b \u2192 \u6838\u5fc3\u89e3\u6790\u7c7b，HTTP\u8bf7\u6c42\u7684\u300c\u5206\u9636\u6bb5\u89e3\u6790\u5f15\u64ce\u300d，\u8d1f\u8d23\u5c06Buffer\u4e2d\u7684\u4e8c\u8fdb\u5236\u6570\u636e\u89e3\u6790\u6210HttpRequest\u5bf9\u8c61，\u6838\u5fc3\u6838\u5fc3！
\n6. HttpServer \u6838\u5fc3\u7c7b \u2192 \u4e1a\u52a1\u8c03\u5ea6\u7684\u300c\u603b\u6307\u6325\u300d，\u6574\u5408\u6240\u6709\u6a21\u5757：\u8def\u7531\u5206\u53d1（\u9759\u6001\u8d44\u6e90\/\u52a8\u6001\u63a5\u53e3）\u3001\u4e1a\u52a1\u5904\u7406\u3001\u54cd\u5e94\u751f\u6210\u3001\u8fde\u63a5\u7ba1\u7406，\u5bf9\u5916\u63d0\u4f9b\u6781\u7b80\u7684\u4f7f\u7528\u63a5\u53e3 <\/p>\n
\u6838\u5fc3\u89c4\u5f8b：\u8d8a\u5f80\u4e0b\u7684\u6a21\u5757，\u8d8a\u504f\u5411\u57fa\u7840\u5de5\u5177；\u8d8a\u5f80\u4e0a\u7684\u6a21\u5757，\u8d8a\u504f\u5411\u4e1a\u52a1\u903b\u8f91，\u6bcf\u4e2a\u6a21\u5757\u53ea\u505a\u81ea\u5df1\u7684\u4e8b，\u6bd4\u5982 Util \u53ea\u505a\u5de5\u5177\u51fd\u6570，HttpContext \u53ea\u505a\u8bf7\u6c42\u89e3\u6790，HttpServer \u53ea\u505a\u4e1a\u52a1\u8c03\u5ea6，\u8fd9\u79cd\u8bbe\u8ba1\u7684\u597d\u5904\u662f：\u4ee3\u7801\u6613\u7ef4\u62a4\u3001\u6613\u6269\u5c55\u3001\u6613\u6d4b\u8bd5，\u51fa\u95ee\u9898\u80fd\u5feb\u901f\u5b9a\u4f4d\u3002<\/p>\n
\u6838\u5fc3\u4f9d\u8d56\u5173\u7cfb：HttpServer \u2192 HttpContext \u2192 HttpRequest\/HttpResponse \u2192 Util，\u6240\u6709\u6a21\u5757\u6700\u7ec8\u90fd\u4f9d\u8d56 Util \u5de5\u5177\u7c7b\u3002<\/p>\n
\/\/ \u5934\u6587\u4ef6\u5f15\u5165：\u6807\u51c6\u5e93+Linux\u7cfb\u7edf\u5934\u6587\u4ef6+\u81ea\u7814\u670d\u52a1\u5668\u6846\u67b6\u5934\u6587\u4ef6
\n\/\/ \u8be5\u6587\u4ef6\u662f\u3010\u57fa\u4e8e\u81ea\u7814\u9ad8\u6027\u80fdTCP\u670d\u52a1\u5668\u6846\u67b6\u3011\u5b9e\u73b0\u7684HTTP1.1\u670d\u52a1\u5668 \u6838\u5fc3\u8f85\u52a9\u914d\u7f6e\u6587\u4ef6
\n\/\/ \u6838\u5fc3\u4f5c\u7528：\u63d0\u4f9bHTTP\u54cd\u5e94\u5fc5\u5907\u7684\u72b6\u6001\u7801\u63cf\u8ff0\u3001\u6587\u4ef6MIME\u7c7b\u578b\u6620\u5c04，\u662fHTTP\u534f\u8bae\u89e3\u6790\/\u54cd\u5e94\u6784\u5efa\u7684\u6838\u5fc3\u5e38\u91cf\u914d\u7f6e
\n#include <iostream> \/\/ \u6807\u51c6\u8f93\u5165\u8f93\u51fa，\u65e5\u5fd7\u6253\u5370\/\u8c03\u8bd5\u4fe1\u606f\u8f93\u51fa
\n#include <fstream> \/\/ \u6587\u4ef6\u6d41\u64cd\u4f5c，\u6838\u5fc3：\u8bfb\u53d6\u672c\u5730\u9759\u6001\u6587\u4ef6(\u7f51\u9875\/\u56fe\u7247\/\u811a\u672c\u7b49)\u8fd4\u56de\u7ed9\u5ba2\u6237\u7aef
\n#include <string> \/\/ \u5b57\u7b26\u4e32\u5904\u7406，HTTP\u534f\u8bae\u7684\u8bf7\u6c42\/\u54cd\u5e94\u90fd\u662f\u5b57\u7b26\u4e32\u683c\u5f0f，\u5fc5\u5907\u5934\u6587\u4ef6
\n#include <vector> \/\/ \u52a8\u6001\u6570\u7ec4，\u7528\u4e8e\u89e3\u6790HTTP\u8bf7\u6c42\u884c\u3001\u8bf7\u6c42\u5934\u7684\u53c2\u6570\u5207\u5272\u5b58\u50a8
\n#include <regex> \/\/ \u6b63\u5219\u8868\u8fbe\u5f0f，\u7528\u4e8eHTTP\u8bf7\u6c42\u62a5\u6587\u7684\u89c4\u5219\u5316\u89e3\u6790(\u5982\u8bf7\u6c42\u884c\/\u8bf7\u6c42\u5934\u63d0\u53d6)，\u7b80\u5316\u5b57\u7b26\u4e32\u5904\u7406\u903b\u8f91
\n#include <sys\/stat.h> \/\/ Linux\u7cfb\u7edf\u6587\u4ef6\u72b6\u6001\u5934\u6587\u4ef6，\u6838\u5fc3：\u5224\u65ad\u6587\u4ef6\u662f\u5426\u5b58\u5728\/\u662f\u5426\u4e3a\u76ee\u5f55\/\u6587\u4ef6\u5927\u5c0f\u7b49\u5c5e\u6027，\u5904\u7406\u9759\u6001\u8d44\u6e90\u8bf7\u6c42\u5fc5\u5907
\n#include "..\/server.hpp" \/\/ \u5f15\u5165\u81ea\u7814\u7684\u9ad8\u6027\u80fdTCP\u670d\u52a1\u5668\u6846\u67b6\u5934\u6587\u4ef6(\u5305\u542bTcpServer\/Connection\/EventLoop\u7b49\u6240\u6709\u6838\u5fc3\u7c7b)<\/p>\n
\/\/ HTTP\u670d\u52a1\u5668 \u5168\u5c40\u5b8f\u5b9a\u4e49：\u9ed8\u8ba4\u7684\u8fde\u63a5\u975e\u6d3b\u8dc3\u8d85\u65f6\u65f6\u95f4 (\u5355\u4f4d：\u79d2)
\n\/\/ \u542b\u4e49：HTTP\u957f\u8fde\u63a5\u6a21\u5f0f\u4e0b，\u82e5\u8fde\u63a5\u5728\u8be5\u65f6\u95f4\u5185\u65e0\u4efb\u4f55\u8bf7\u6c42\u4ea4\u4e92，\u5219\u81ea\u52a8\u91ca\u653e\u8fde\u63a5，\u907f\u514d\u65e0\u6548\u957f\u8fde\u63a5\u5360\u7528\u8d44\u6e90
\n\/\/ \u6ce8：\u5b8f\u540d\u62fc\u5199\u7b14\u8bef DEFALT \u2192 \u6807\u51c6\u62fc\u5199 DEFAULT，\u4fdd\u7559\u539f\u4ee3\u7801\u4e0d\u53d8，\u4e0d\u5f71\u54cd\u4e1a\u52a1\u903b\u8f91
\n#define DEFALT_TIMEOUT 10<\/p>\n
\/\/ ===== \u5168\u5c40\u53ea\u8bfb\u5e38\u91cf：HTTP\u54cd\u5e94\u72b6\u6001\u7801 \u4e0e \u5bf9\u5e94\u63cf\u8ff0\u4fe1\u606f\u7684\u6620\u5c04\u8868 \u3010HTTP1.1\u534f\u8bae\u6807\u51c6，\u5fc5\u5907\u6838\u5fc3\u914d\u7f6e\u3011
\n\/\/ \u6838\u5fc3\u4f5c\u7528：\u6784\u5efaHTTP\u54cd\u5e94\u884c\u65f6\u4f7f\u7528 \u2192 HTTP\/1.1 200 OK \u3001 HTTP\/1.1 404 Not Found \u7b49\u683c\u5f0f\u7684\u6838\u5fc3\u7ec4\u6210\u90e8\u5206
\n\/\/ \u6620\u5c04\u89c4\u5219：key = HTTP\u6807\u51c6\u72b6\u6001\u7801(int) ， value = \u72b6\u6001\u7801\u5bf9\u5e94\u7684\u82f1\u6587\u63cf\u8ff0(string)
\n\/\/ HTTP\u72b6\u6001\u7801\u5206\u7c7b\u89c4\u5219\u3010HTTP1.1\u534f\u8bae\u786c\u6027\u89c4\u8303，\u5fc5\u987b\u9075\u5faa\u3011：
\n\/\/ 1xx(100-199)：\u4fe1\u606f\u6027\u72b6\u6001\u7801 – \u670d\u52a1\u5668\u5df2\u63a5\u6536\u8bf7\u6c42，\u7ee7\u7eed\u5904\u7406\u4e2d
\n\/\/ 2xx(200-299)：\u6210\u529f\u72b6\u6001\u7801 – \u8bf7\u6c42\u6b63\u5e38\u63a5\u6536\u3001\u89e3\u6790\u3001\u5904\u7406\u5b8c\u6210，\u6838\u5fc3：200 OK
\n\/\/ 3xx(300-399)：\u91cd\u5b9a\u5411\u72b6\u6001\u7801 – \u5ba2\u6237\u7aef\u9700\u8981\u8fdb\u4e00\u6b65\u64cd\u4f5c\u624d\u80fd\u5b8c\u6210\u8bf7\u6c42，\u6838\u5fc3：301\u6c38\u4e45\u91cd\u5b9a\u5411\u3001302\u4e34\u65f6\u91cd\u5b9a\u5411\u3001304\u8d44\u6e90\u672a\u4fee\u6539
\n\/\/ 4xx(400-499)：\u5ba2\u6237\u7aef\u9519\u8bef\u72b6\u6001\u7801 – \u8bf7\u6c42\u6709\u8bed\u6cd5\u9519\u8bef\/\u8d44\u6e90\u4e0d\u5b58\u5728\/\u6743\u9650\u4e0d\u8db3\u7b49，\u6838\u5fc3：404\u8d44\u6e90\u4e0d\u5b58\u5728\u3001403\u7981\u6b62\u8bbf\u95ee\u3001400\u8bf7\u6c42\u9519\u8bef
\n\/\/ 5xx(500-599)：\u670d\u52a1\u7aef\u9519\u8bef\u72b6\u6001\u7801 – \u670d\u52a1\u5668\u5904\u7406\u8bf7\u6c42\u65f6\u53d1\u751f\u5185\u90e8\u9519\u8bef，\u6838\u5fc3：503\u670d\u52a1\u4e0d\u53ef\u7528\u3001501\u672a\u5b9e\u73b0\u3001504\u7f51\u5173\u8d85\u65f6
\n\/\/ \u7279\u6027：\u5168\u5c40const\u53ea\u8bfb，\u7a0b\u5e8f\u542f\u52a8\u65f6\u521d\u59cb\u5316，\u8fd0\u884c\u4e2d\u4e0d\u4fee\u6539，\u5929\u7136\u7ebf\u7a0b\u5b89\u5168，\u53ef\u5728\u4efb\u610f\u7ebf\u7a0b\u76f4\u63a5\u8bbf\u95ee
\nstd::unordered_map<int, std::string> _statu_msg = {
\n {100, "Continue"}, \/\/ 100：\u5ba2\u6237\u7aef\u7ee7\u7eed\u53d1\u9001\u8bf7\u6c42\u4f53
\n {101, "Switching Protocol"}, \/\/ 101：\u534f\u8bae\u5207\u6362，\u5982HTTP\u5347\u7ea7\u4e3aWebSocket
\n {102, "Processing"}, \/\/ 102：\u670d\u52a1\u5668\u6b63\u5728\u5904\u7406\u8bf7\u6c42，\u65e0\u54cd\u5e94\u8fd4\u56de
\n {103, "Early Hints"}, \/\/ 103：\u63d0\u524d\u8fd4\u56de\u54cd\u5e94\u5934，\u52a0\u901f\u9875\u9762\u52a0\u8f7d
\n {200, "OK"}, \/\/ 200：\u6838\u5fc3\u6210\u529f\u7801，\u8bf7\u6c42\u5904\u7406\u5b8c\u6210，\u6b63\u5e38\u8fd4\u56de\u6570\u636e
\n {201, "Created"}, \/\/ 201：\u8d44\u6e90\u521b\u5efa\u6210\u529f
\n {202, "Accepted"}, \/\/ 202：\u8bf7\u6c42\u5df2\u63a5\u6536，\u7b49\u5f85\u5904\u7406
\n {203, "Non-Authoritative Information"}, \/\/ 203：\u975e\u6743\u5a01\u4fe1\u606f，\u8fd4\u56de\u7684\u5143\u4fe1\u606f\u4e0d\u662f\u6765\u81ea\u6e90\u670d\u52a1\u5668
\n {204, "No Content"}, \/\/ 204：\u8bf7\u6c42\u6210\u529f，\u4f46\u65e0\u5185\u5bb9\u8fd4\u56de
\n {205, "Reset Content"}, \/\/ 205：\u91cd\u7f6e\u5185\u5bb9，\u8981\u6c42\u5ba2\u6237\u7aef\u91cd\u7f6e\u6587\u6863\u89c6\u56fe
\n {206, "Partial Content"}, \/\/ 206：\u90e8\u5206\u5185\u5bb9，\u65ad\u70b9\u7eed\u4f20\/\u5206\u7247\u4e0b\u8f7d\u65f6\u4f7f\u7528
\n {207, "Multi-Status"}, \/\/ 207：\u591a\u72b6\u6001\u54cd\u5e94，WebDAV\u4e13\u7528
\n {208, "Already Reported"}, \/\/ 208：\u5df2\u4e0a\u62a5，WebDAV\u4e13\u7528
\n {226, "IM Used"}, \/\/ 226：\u670d\u52a1\u5668\u5df2\u5b8c\u6210\u8bf7\u6c42，\u8fd4\u56de\u5b9e\u4f8b\u64cd\u4f5c\u7ed3\u679c
\n {300, "Multiple Choice"}, \/\/ 300：\u591a\u79cd\u9009\u62e9，\u8bf7\u6c42\u8d44\u6e90\u6709\u591a\u4e2a\u5730\u5740
\n {301, "Moved Permanently"}, \/\/ 301：\u6c38\u4e45\u91cd\u5b9a\u5411，\u8d44\u6e90\u5730\u5740\u6c38\u4e45\u53d8\u66f4
\n {302, "Found"}, \/\/ 302：\u4e34\u65f6\u91cd\u5b9a\u5411，\u8d44\u6e90\u5730\u5740\u4e34\u65f6\u53d8\u66f4
\n {303, "See Other"}, \/\/ 303：\u67e5\u770b\u5176\u4ed6\u5730\u5740，GET\u8bf7\u6c42\u91cd\u5b9a\u5411
\n {304, "Not Modified"}, \/\/ 304：\u8d44\u6e90\u672a\u4fee\u6539，\u7f13\u5b58\u547d\u4e2d，\u65e0\u9700\u91cd\u65b0\u4f20\u8f93\u8d44\u6e90
\n {305, "Use Proxy"}, \/\/ 305：\u4f7f\u7528\u4ee3\u7406，\u8bf7\u6c42\u5fc5\u987b\u901a\u8fc7\u6307\u5b9a\u4ee3\u7406\u8bbf\u95ee
\n {306, "unused"}, \/\/ 306：\u5e9f\u5f03\u72b6\u6001\u7801
\n {307, "Temporary Redirect"}, \/\/ 307：\u4e34\u65f6\u91cd\u5b9a\u5411，\u4fdd\u7559\u8bf7\u6c42\u65b9\u6cd5
\n {308, "Permanent Redirect"}, \/\/ 308：\u6c38\u4e45\u91cd\u5b9a\u5411，\u4fdd\u7559\u8bf7\u6c42\u65b9\u6cd5
\n {400, "Bad Request"}, \/\/ 400：\u5ba2\u6237\u7aef\u8bf7\u6c42\u8bed\u6cd5\u9519\u8bef，\u670d\u52a1\u5668\u65e0\u6cd5\u89e3\u6790
\n {401, "Unauthorized"}, \/\/ 401：\u672a\u6388\u6743，\u9700\u8981\u8eab\u4efd\u9a8c\u8bc1
\n {402, "Payment Required"}, \/\/ 402：\u9700\u8981\u652f\u4ed8，\u9884\u7559\u72b6\u6001\u7801
\n {403, "Forbidden"}, \/\/ 403：\u7981\u6b62\u8bbf\u95ee，\u670d\u52a1\u5668\u62d2\u7edd\u5904\u7406\u8bf7\u6c42
\n {404, "Not Found"}, \/\/ 404：\u6838\u5fc3\u9519\u8bef\u7801，\u8bf7\u6c42\u7684\u8d44\u6e90\u4e0d\u5b58\u5728
\n {405, "Method Not Allowed"}, \/\/ 405：\u8bf7\u6c42\u65b9\u6cd5\u4e0d\u88ab\u5141\u8bb8，\u5982POST\u8bf7\u6c42\u8bbf\u95eeGET\u63a5\u53e3
\n {406, "Not Acceptable"}, \/\/ 406：\u8bf7\u6c42\u7684\u8d44\u6e90\u683c\u5f0f\u65e0\u6cd5\u6ee1\u8db3\u5ba2\u6237\u7aef\u8981\u6c42
\n {407, "Proxy Authentication Required"}, \/\/ 407：\u9700\u8981\u4ee3\u7406\u8eab\u4efd\u9a8c\u8bc1
\n {408, "Request Timeout"}, \/\/ 408：\u5ba2\u6237\u7aef\u8bf7\u6c42\u8d85\u65f6
\n {409, "Conflict"}, \/\/ 409：\u8bf7\u6c42\u51b2\u7a81，\u8d44\u6e90\u72b6\u6001\u4e0d\u4e00\u81f4
\n {410, "Gone"}, \/\/ 410：\u8d44\u6e90\u6c38\u4e45\u5220\u9664，\u65e0\u6cd5\u8bbf\u95ee
\n {411, "Length Required"}, \/\/ 411：\u8981\u6c42Content-Length\u8bf7\u6c42\u5934
\n {412, "Precondition Failed"}, \/\/ 412：\u524d\u7f6e\u6761\u4ef6\u5931\u8d25，\u8bf7\u6c42\u5934\u4e2d\u7684\u6761\u4ef6\u4e0d\u6ee1\u8db3
\n {413, "Payload Too Large"}, \/\/ 413：\u8bf7\u6c42\u4f53\u8fc7\u5927，\u670d\u52a1\u5668\u65e0\u6cd5\u5904\u7406
\n {414, "URI Too Long"}, \/\/ 414：\u8bf7\u6c42URI\u8fc7\u957f
\n {415, "Unsupported Media Type"}, \/\/ 415：\u4e0d\u652f\u6301\u7684\u5a92\u4f53\u7c7b\u578b，\u8bf7\u6c42\u4f53\u683c\u5f0f\u4e0d\u88ab\u652f\u6301
\n {416, "Range Not Satisfiable"}, \/\/ 416：\u8bf7\u6c42\u7684\u8303\u56f4\u65e0\u6548
\n {417, "Expectation Failed"}, \/\/ 417：\u671f\u671b\u5931\u8d25，\u65e0\u6cd5\u6ee1\u8db3\u8bf7\u6c42\u5934\u7684Expect\u6761\u4ef6
\n {418, "I'm a teapot"}, \/\/ 418：\u8da3\u5473\u5f69\u86cb，HTTP\u611a\u4eba\u8282\u73a9\u7b11，\u670d\u52a1\u5668\u662f\u8336\u58f6，\u65e0\u6cd5\u716e\u5496\u5561
\n {421, "Misdirected Request"}, \/\/ 421：\u8bf7\u6c42\u88ab\u5b9a\u5411\u5230\u65e0\u6cd5\u5904\u7406\u7684\u670d\u52a1\u5668
\n {422, "Unprocessable Entity"}, \/\/ 422：\u8bf7\u6c42\u4f53\u683c\u5f0f\u6b63\u786e，\u4f46\u8bed\u4e49\u9519\u8bef
\n {423, "Locked"}, \/\/ 423：\u8d44\u6e90\u88ab\u9501\u5b9a，WebDAV\u4e13\u7528
\n {424, "Failed Dependency"}, \/\/ 424：\u4f9d\u8d56\u8bf7\u6c42\u5931\u8d25，WebDAV\u4e13\u7528
\n {425, "Too Early"}, \/\/ 425：\u8bf7\u6c42\u8fc7\u65e9，\u670d\u52a1\u5668\u65e0\u6cd5\u5904\u7406
\n {426, "Upgrade Required"}, \/\/ 426：\u9700\u8981\u5347\u7ea7\u534f\u8bae，\u5982HTTP\/1.0\u5347\u7ea7\u4e3aHTTP\/1.1
\n {428, "Precondition Required"}, \/\/ 428：\u8981\u6c42\u524d\u7f6e\u6761\u4ef6
\n {429, "Too Many Requests"}, \/\/ 429：\u8bf7\u6c42\u8fc7\u4e8e\u9891\u7e41，\u9650\u6d41\u4e13\u7528
\n {431, "Request Header Fields Too Large"}, \/\/431：\u8bf7\u6c42\u5934\u8fc7\u5927
\n {451, "Unavailable For Legal Reasons"}, \/\/451：\u56e0\u6cd5\u5f8b\u539f\u56e0\u65e0\u6cd5\u8bbf\u95ee
\n {501, "Not Implemented"}, \/\/ 501：\u670d\u52a1\u5668\u672a\u5b9e\u73b0\u8be5\u8bf7\u6c42\u65b9\u6cd5
\n {502, "Bad Gateway"}, \/\/ 502：\u7f51\u5173\u9519\u8bef，\u4ee3\u7406\u670d\u52a1\u5668\u6536\u5230\u65e0\u6548\u54cd\u5e94
\n {503, "Service Unavailable"}, \/\/ 503：\u670d\u52a1\u4e0d\u53ef\u7528，\u670d\u52a1\u5668\u8fc7\u8f7d\/\u7ef4\u62a4\u4e2d
\n {504, "Gateway Timeout"}, \/\/ 504：\u7f51\u5173\u8d85\u65f6，\u4ee3\u7406\u670d\u52a1\u5668\u672a\u53ca\u65f6\u6536\u5230\u54cd\u5e94
\n {505, "HTTP Version Not Supported"},\/\/ 505：\u4e0d\u652f\u6301\u7684HTTP\u7248\u672c
\n {506, "Variant Also Negotiates"}, \/\/ 506：\u5185\u5bb9\u534f\u5546\u5931\u8d25
\n {507, "Insufficient Storage"}, \/\/ 507：\u5b58\u50a8\u4e0d\u8db3，WebDAV\u4e13\u7528
\n {508, "Loop Detected"}, \/\/ 508：\u68c0\u6d4b\u5230\u5faa\u73af，WebDAV\u4e13\u7528
\n {510, "Not Extended"}, \/\/ 510：\u9700\u8981\u6269\u5c55\u534f\u8bae
\n {511, "Network Authentication Required"} \/\/511：\u9700\u8981\u7f51\u7edc\u8eab\u4efd\u9a8c\u8bc1
\n};<\/p>\n
\/\/ ===== \u5168\u5c40\u53ea\u8bfb\u5e38\u91cf：\u6587\u4ef6\u540e\u7f00\u540d \u4e0e MIME\u5a92\u4f53\u7c7b\u578b\u7684\u6620\u5c04\u8868 \u3010HTTP1.1\u534f\u8bae\u6807\u51c6，\u9759\u6001\u8d44\u6e90\u670d\u52a1\u5668\u6838\u5fc3\u914d\u7f6e\u3011
\n\/\/ \u6838\u5fc3\u4f5c\u7528：\u6784\u5efaHTTP\u54cd\u5e94\u5934\u7684Content-Type\u5b57\u6bb5\u65f6\u4f7f\u7528 \u2192 \u544a\u8bc9\u5ba2\u6237\u7aef\u3010\u8fd4\u56de\u7684\u6587\u4ef6\u662f\u4ec0\u4e48\u7c7b\u578b\u3011，\u5ba2\u6237\u7aef\u636e\u6b64\u89e3\u6790\u6587\u4ef6
\n\/\/ \u4f8b：\u8fd4\u56dehtml\u6587\u4ef6 \u2192 Content-Type: text\/html; charset=utf-8
\n\/\/ \u8fd4\u56depng\u56fe\u7247 \u2192 Content-Type: image\/png
\n\/\/ \u8fd4\u56dejs\u811a\u672c \u2192 Content-Type: text\/javascript
\n\/\/ \u6620\u5c04\u89c4\u5219：key = \u6587\u4ef6\u540e\u7f00\u540d(\u5e26\u70b9，\u5982.html\u3001.png) ， value = \u6807\u51c6MIME\u5a92\u4f53\u7c7b\u578b\u5b57\u7b26\u4e32
\n\/\/ MIME\u7c7b\u578b\u610f\u4e49：HTTP\u534f\u8bae\u662f\u300c\u5e94\u7528\u5c42\u534f\u8bae\u300d，\u4f20\u8f93\u7684\u662f\u5b57\u8282\u6d41，\u5ba2\u6237\u7aef\u65e0\u6cd5\u8bc6\u522b\u5b57\u8282\u6d41\u7684\u5177\u4f53\u7c7b\u578b，\u5fc5\u987b\u901a\u8fc7MIME\u6807\u8bc6\u6587\u4ef6\u7c7b\u578b
\n\/\/ \u6d4f\u89c8\u5668\u6839\u636eMIME\u7c7b\u578b\u51b3\u5b9a\u662f\u6e32\u67d3\u9875\u9762\u3001\u663e\u793a\u56fe\u7247\u3001\u4e0b\u8f7d\u6587\u4ef6\u8fd8\u662f\u6267\u884c\u811a\u672c，\u662f\u9759\u6001\u8d44\u6e90\u8fd4\u56de\u7684\u6838\u5fc3\u914d\u7f6e
\n\/\/ \u7279\u6027：1. \u5168\u5c40const\u53ea\u8bfb，\u5929\u7136\u7ebf\u7a0b\u5b89\u5168 2. \u8986\u76d6\u6240\u6709\u4e3b\u6d41\u9759\u6001\u6587\u4ef6\u7c7b\u578b，\u6ee1\u8db3\u7edd\u5927\u591a\u6570HTTP\u9759\u6001\u670d\u52a1\u5668\u4e1a\u52a1\u9700\u6c42
\n\/\/ 3. \u952e\u503c\u5bf9\u662fHTTP\u6807\u51c6\u89c4\u8303，\u6240\u6709\u6d4f\u89c8\u5668\u90fd\u80fd\u8bc6\u522b，\u65e0\u517c\u5bb9\u6027\u95ee\u9898
\nstd::unordered_map<std::string, std::string> _mime_msg = {
\n {".aac", "audio\/aac"},
\n {".abw", "application\/x-abiword"},
\n {".arc", "application\/x-freearc"},
\n {".avi", "video\/x-msvideo"},
\n {".azw", "application\/vnd.amazon.ebook"},
\n {".bin", "application\/octet-stream"}, \/\/ \u4e8c\u8fdb\u5236\u6587\u4ef6，\u9ed8\u8ba4\u4e0b\u8f7d
\n {".bmp", "image\/bmp"},
\n {".bz", "application\/x-bzip"},
\n {".bz2", "application\/x-bzip2"},
\n {".csh", "application\/x-csh"},
\n {".css", "text\/css"}, \/\/ CSS\u6837\u5f0f\u6587\u4ef6，\u6838\u5fc3\u524d\u7aef\u8d44\u6e90
\n {".csv", "text\/csv"}, \/\/ \u8868\u683c\u6587\u4ef6
\n {".doc", "application\/msword"}, \/\/ Word\u6587\u6863
\n {".docx", "application\/vnd.openxmlformats-officedocument.wordprocessingml.document"},
\n {".eot", "application\/vnd.ms-fontobject"},
\n {".epub", "application\/epub+zip"},
\n {".gif", "image\/gif"}, \/\/ GIF\u56fe\u7247
\n {".htm", "text\/html"}, \/\/ HTML\u6587\u4ef6，\u6838\u5fc3\u7f51\u9875\u8d44\u6e90
\n {".html", "text\/html"}, \/\/ HTML\u6587\u4ef6，\u4e0e.htm\u7b49\u4ef7，\u90fd\u6620\u5c04\u4e3atext\/html
\n {".ico", "image\/vnd.microsoft.icon"}, \/\/ \u7f51\u7ad9\u56fe\u6807
\n {".ics", "text\/calendar"},
\n {".jar", "application\/java-archive"},
\n {".jpeg", "image\/jpeg"}, \/\/ JPEG\u56fe\u7247
\n {".jpg", "image\/jpeg"}, \/\/ JPG\u56fe\u7247，\u4e0e.jpeg\u7b49\u4ef7
\n {".js", "text\/javascript"}, \/\/ JS\u811a\u672c\u6587\u4ef6，\u6838\u5fc3\u524d\u7aef\u8d44\u6e90
\n {".json", "application\/json"}, \/\/ JSON\u6570\u636e，\u63a5\u53e3\u5f00\u53d1\u6838\u5fc3\u683c\u5f0f
\n {".jsonld", "application\/ld+json"},
\n {".mid", "audio\/midi"},
\n {".midi", "audio\/x-midi"},
\n {".mjs", "text\/javascript"},
\n {".mp3", "audio\/mpeg"}, \/\/ MP3\u97f3\u9891
\n {".mpeg", "video\/mpeg"}, \/\/ MPEG\u89c6\u9891
\n {".mpkg", "application\/vnd.apple.installer+xml"},
\n {".odp", "application\/vnd.oasis.opendocument.presentation"},
\n {".ods", "application\/vnd.oasis.opendocument.spreadsheet"},
\n {".odt", "application\/vnd.oasis.opendocument.text"},
\n {".oga", "audio\/ogg"},
\n {".ogv", "video\/ogg"},
\n {".ogx", "application\/ogg"},
\n {".otf", "font\/otf"},
\n {".png", "image\/png"}, \/\/ PNG\u56fe\u7247，\u65e0\u635f\u538b\u7f29，\u7f51\u9875\u5e38\u7528
\n {".pdf", "application\/pdf"}, \/\/ PDF\u6587\u6863
\n {".ppt", "application\/vnd.ms-powerpoint"},
\n {".pptx", "application\/vnd.openxmlformats-officedocument.presentationml.presentation"},
\n {".rar", "application\/x-rar-compressed"}, \/\/ RAR\u538b\u7f29\u5305，\u9ed8\u8ba4\u4e0b\u8f7d
\n {".rtf", "application\/rtf"},
\n {".sh", "application\/x-sh"},
\n {".svg", "image\/svg+xml"},
\n {".swf", "application\/x-shockwave-flash"},
\n {".tar", "application\/x-tar"},
\n {".tif", "image\/tiff"},
\n {".tiff", "image\/tiff"},
\n {".ttf", "font\/ttf"},
\n {".txt", "text\/plain"}, \/\/ \u7eaf\u6587\u672c\u6587\u4ef6
\n {".vsd", "application\/vnd.visio"},
\n {".wav", "audio\/wav"},
\n {".weba", "audio\/webm"},
\n {".webm", "video\/webm"},
\n {".webp", "image\/webp"}, \/\/ WebP\u56fe\u7247，\u9ad8\u538b\u7f29\u6bd4，\u7f51\u9875\u4f18\u5316\u9996\u9009
\n {".woff", "font\/woff"},
\n {".woff2", "font\/woff2"},
\n {".xhtml", "application\/xhtml+xml"},
\n {".xls", "application\/vnd.ms-excel"},
\n {".xlsx", "application\/vnd.openxmlformats-officedocument.spreadsheetml.sheet"},
\n {".xml", "application\/xml"}, \/\/ XML\u6570\u636e\u683c\u5f0f
\n {".xul", "application\/vnd.mozilla.xul+xml"},
\n {".zip", "application\/zip"}, \/\/ ZIP\u538b\u7f29\u5305，\u9ed8\u8ba4\u4e0b\u8f7d
\n {".3gp", "video\/3gpp"},
\n {".3g2", "video\/3gpp2"},
\n {".7z", "application\/x-7z-compressed"}\/\/ 7z\u538b\u7f29\u5305，\u9ed8\u8ba4\u4e0b\u8f7d
\n}; <\/p>\n
\u8fd9\u4e24\u4e2a\u6620\u5c04\u8868\u662f\u300c\u5168\u5c40\u5e38\u91cf\u300d，\u6240\u6709\u6a21\u5757\u90fd\u80fd\u8bbf\u95ee，\u662f HTTP \u670d\u52a1\u5668\u7684\u300c\u57fa\u7840\u5b57\u5178\u300d，\u5de5\u4e1a\u7ea7\u4ee3\u7801\u5fc5\u5907\u7684\u8bbe\u8ba1\u65b9\u5f0f\u3002<\/p>\n
Util\u662f\u6574\u4e2a HTTP \u6e90\u7801\u7684\u300c\u5de5\u5177\u5e93\u300d，\u6240\u6709\u6a21\u5757\u7684\u57fa\u7840\u4f9d\u8d56，\u6ca1\u6709\u8fd9\u4e2a\u7c7b，\u5176\u4ed6\u6240\u6709\u6a21\u5757\u90fd\u65e0\u6cd5\u5de5\u4f5c！<\/p>\n
\u8fd9\u4e2a\u7c7b\u88ab\u8bbe\u8ba1\u4e3a\u5168\u9759\u6001\u6210\u5458\u51fd\u6570\u7684\u5de5\u5177\u7c7b（\u65e0\u9700\u5b9e\u4f8b\u5316，\u76f4\u63a5\u8c03\u7528Util::\u51fd\u6570\u540d()），\u5c01\u88c5\u4e86\u6240\u6709 HTTP \u670d\u52a1\u5668\u5f00\u53d1\u4e2d\u9700\u8981\u7528\u5230\u7684\u901a\u7528\u3001\u65e0\u4e1a\u52a1\u5173\u8054\u7684\u5de5\u5177\u51fd\u6570，\u6240\u6709\u51fd\u6570\u90fd\u662f\u300c\u7eaf\u51fd\u6570\u300d（\u8f93\u5165\u76f8\u540c，\u8f93\u51fa\u5fc5\u76f8\u540c，\u65e0\u526f\u4f5c\u7528）\u3002<\/p>\n
\u5de5\u5177\u7c7b\u7684\u6838\u5fc3\u539f\u5219：\u628a\u6240\u6709\u901a\u7528\u903b\u8f91\u62bd\u79bb\u51fa\u6765，\u907f\u514d\u5728\u4e1a\u52a1\u4ee3\u7801\u4e2d\u91cd\u590d\u7f16\u5199，\u6bd4\u5982\u5b57\u7b26\u4e32\u5206\u5272\u3001\u6587\u4ef6\u8bfb\u5199\u3001URL \u7f16\u89e3\u7801\u8fd9\u4e9b\u903b\u8f91，\u5728\u5f88\u591a\u5730\u65b9\u90fd\u4f1a\u7528\u5230，\u62bd\u79bb\u6210\u5de5\u5177\u51fd\u6570\u540e，\u4ee3\u7801\u91cf\u51cf\u5c11\u3001\u53ef\u8bfb\u6027\u63d0\u5347\u3001\u7ef4\u62a4\u6210\u672c\u964d\u4f4e\u3002<\/p>\n
UrlEncode() + UrlDecode() \u662fHTTP \u670d\u52a1\u5668\u7684\u5fc5\u5907\u529f\u80fd，\u89e3\u51b3 URL \u4e2d\u7279\u6b8a\u5b57\u7b26\u7684\u6b67\u4e49\u95ee\u9898<\/p>\n
\u4e3a\u4ec0\u4e48\u9700\u8981 URL \u7f16\u89e3\u7801？<\/p>\n
URL \u7684\u89c4\u8303\u4e2d，\u4e0d\u5141\u8bb8\u51fa\u73b0\u7a7a\u683c\u3001+\u3001&\u3001=\u3001\/\u3001% \u7b49\u7279\u6b8a\u5b57\u7b26，\u6bd4\u5982\u8bf7\u6c42\u8def\u5f84\u662f\/search?keyword=C++，\u5176\u4e2d\u7684+\u4f1a\u88ab\u89e3\u6790\u6210\u67e5\u8be2\u53c2\u6570\u7684\u5206\u9694\u7b26，\u5bfc\u81f4\u8bf7\u6c42\u51fa\u9519；\u518d\u6bd4\u5982\u8def\u5f84\u4e2d\u6709\u7a7a\u683c，\u4f1a\u76f4\u63a5\u88ab\u5224\u5b9a\u4e3a\u975e\u6cd5\u8bf7\u6c42\u3002<\/p>\n
\u7f16\u7801\u89c4\u5219（RFC3986 \u6807\u51c6）<\/p>\n
\u6e90\u7801\u5b9e\u73b0\u4eae\u70b9<\/p>\n
\u4e25\u683c\u9075\u5faa RFC3986 \u6807\u51c6，\u5904\u7406\u4e86\u6240\u6709\u8fb9\u754c\u60c5\u51b5，\u7f16\u7801\u548c\u89e3\u7801\u5b8c\u5168\u53ef\u9006，\u65e0\u4efb\u4f55\u4e71\u7801\u95ee\u9898，\u662f\u5de5\u4e1a\u7ea7\u7684 URL \u7f16\u89e3\u7801\u5b9e\u73b0\u3002<\/p>\n
ValidPath(const std::string &path)：\u6821\u9a8c HTTP \u8bf7\u6c42\u7684\u8d44\u6e90\u8def\u5f84\u662f\u5426\u5408\u6cd5，\u9632\u6b62\u300c\u76ee\u5f55\u7a7f\u8d8a\u653b\u51fb\u300d，\u8fd9\u662f\u6240\u6709 Web \u670d\u52a1\u5668\u7684\u5fc5\u505a\u5b89\u5168\u6821\u9a8c，\u91cd\u4e2d\u4e4b\u91cd！<\/p>\n
\u4ec0\u4e48\u662f\u76ee\u5f55\u7a7f\u8d8a\u653b\u51fb？<\/p>\n
\u5ba2\u6237\u7aef\u7684\u8bf7\u6c42\u8def\u5f84\u5982\u679c\u662f\/..\/etc\/passwd，\u5176\u4e2d\u7684..\u8868\u793a\u300c\u4e0a\u4e00\u7ea7\u76ee\u5f55\u300d，\u5982\u679c\u670d\u52a1\u5668\u4e0d\u505a\u6821\u9a8c，\u76f4\u63a5\u62fc\u63a5\u8def\u5f84\u8bfb\u53d6\u6587\u4ef6，\u5c31\u4f1a\u8bfb\u53d6\u5230\u670d\u52a1\u5668\u7684\u7cfb\u7edf\u6587\u4ef6（\u6bd4\u5982\/etc\/passwd\u662f Linux \u7684\u7528\u6237\u5bc6\u7801\u6587\u4ef6），\u5bfc\u81f4\u670d\u52a1\u5668\u88ab\u5165\u4fb5，\u8fd9\u662f Web \u670d\u52a1\u5668\u7684\u81f4\u547d\u6f0f\u6d1e！<\/p>\n
\u6e90\u7801\u7684\u6821\u9a8c\u903b\u8f91<\/p>\n
\u8fd9\u4e2a\u51fd\u6570\u662f\u670d\u52a1\u5668\u7684\u5b89\u5168\u9632\u7ebf，\u8fd9\u4efd\u6e90\u7801\u4e2d\u6240\u6709\u9759\u6001\u8d44\u6e90\u8bf7\u6c42\u90fd\u4f1a\u7ecf\u8fc7\u8fd9\u4e2a\u6821\u9a8c，\u5f7b\u5e95\u675c\u7edd\u4e86\u76ee\u5f55\u7a7f\u8d8a\u653b\u51fb，\u662f\u5de5\u4e1a\u7ea7\u670d\u52a1\u5668\u7684\u5fc5\u5907\u529f\u80fd\u3002<\/p>\n
\/\/ ===== \u6838\u5fc3\u7eaf\u9759\u6001\u5de5\u5177\u7c7b：Util \u3010HTTP\u670d\u52a1\u5668\u901a\u7528\u5de5\u5177\u5e93 | \u65e0\u72b6\u6001\u3001\u7ebf\u7a0b\u5b89\u5168\u3001\u5168\u9759\u6001\u65b9\u6cd5\u3011 =====
\n\/\/ \u6838\u5fc3\u5b9a\u4f4d：\u5c01\u88c5HTTP\u670d\u52a1\u5668\u5f00\u53d1\u4e2d\u300c\u6240\u6709\u9ad8\u9891\u901a\u7528\u7684\u5de5\u5177\u65b9\u6cd5\u300d，\u662f\u6574\u4e2aHTTP\u670d\u52a1\u5668\u7684\u57fa\u7840\u5de5\u5177\u652f\u6491，\u65e0\u4efb\u4f55\u4e1a\u52a1\u8026\u5408
\n\/\/ \u6838\u5fc3\u7279\u6027：1. \u7eaf\u9759\u6001\u7c7b：\u6240\u6709\u6210\u5458\u65b9\u6cd5\u5747\u4e3astatic，\u65e0\u6210\u5458\u53d8\u91cf\u3001\u65e0\u9700\u5b9e\u4f8b\u5316，\u76f4\u63a5\u901a\u8fc7\u7c7b\u540d\u8c03\u7528 Util::XXX()
\n\/\/ 2. \u5929\u7136\u7ebf\u7a0b\u5b89\u5168：\u65e0\u4efb\u4f55\u5168\u5c40\u53ef\u5199\u72b6\u6001，\u6240\u6709\u65b9\u6cd5\u7684\u53c2\u6570\u90fd\u662f\u503c\u4f20\u9012\/\u6307\u9488\u4f20\u9012，\u65e0\u5171\u4eab\u8d44\u6e90\u7ade\u4e89，\u53ef\u5728\u4efb\u610f\u7ebf\u7a0b\u8c03\u7528
\n\/\/ 3. \u529f\u80fd\u5168\u8986\u76d6：\u5b57\u7b26\u4e32\u5904\u7406\u3001\u6587\u4ef6\u8bfb\u5199\u3001URL\u7f16\u89e3\u7801\u3001HTTP\u534f\u8bae\u8f85\u52a9\u3001\u6587\u4ef6\u5c5e\u6027\u5224\u65ad\u3001\u5b89\u5168\u8def\u5f84\u6821\u9a8c，\u4e00\u7ad9\u5f0f\u6ee1\u8db3HTTP\u670d\u52a1\u5668\u6240\u6709\u5de5\u5177\u9700\u6c42
\n\/\/ 4. \u534f\u8bae\u5408\u89c4：\u6240\u6709HTTP\u76f8\u5173\u65b9\u6cd5\u4e25\u683c\u9075\u5faa\u300cRFC3986\u6807\u51c6\u300d\u300cHTTP1.1\u534f\u8bae\u89c4\u8303\u300d\u300cW3C\u6807\u51c6\u300d，\u517c\u5bb9\u6027\u62c9\u6ee1
\n\/\/ \u6838\u5fc3\u4f9d\u8d56：\u4f9d\u8d56\u5168\u5c40\u7684 _statu_msg(HTTP\u72b6\u6001\u7801\u6620\u5c04)\u3001_mime_msg(MIME\u7c7b\u578b\u6620\u5c04) \u5e38\u91cf\u914d\u7f6e\u8868，\u65e0\u7f1d\u8854\u63a5HTTP\u4e1a\u52a1
\n\/\/ \u6838\u5fc3\u4ef7\u503c：\u5c06\u901a\u7528\u5de5\u5177\u903b\u8f91\u62bd\u79bb\u6210\u72ec\u7acb\u7c7b，\u89e3\u8026\u4e1a\u52a1\u4ee3\u7801，\u8ba9HTTP\u534f\u8bae\u89e3\u6790\/\u8d44\u6e90\u5904\u7406\u7684\u6838\u5fc3\u903b\u8f91\u66f4\u7b80\u6d01，\u4ee3\u7801\u590d\u7528\u7387100%
\nclass Util {
\n public:
\n \/\/ ===== \u9759\u6001\u5de5\u5177：\u5b57\u7b26\u4e32\u5206\u5272\u51fd\u6570\u3010HTTP\u534f\u8bae\u89e3\u6790\u7684\u6838\u5fc3\u57fa\u7840\u65b9\u6cd5，\u9ad8\u9891\u8c03\u7528\u3011 =====
\n \/\/ \u529f\u80fd\u63cf\u8ff0：\u5c06\u6e90\u5b57\u7b26\u4e32src\u6309\u7167\u6307\u5b9a\u7684\u5206\u9694\u7b26sep\u8fdb\u884c\u5206\u5272，\u5206\u5272\u540e\u7684\u6240\u6709\u5b50\u4e32\u5b58\u5165\u8f93\u51fa\u5bb9\u5668arry\u4e2d，\u8fd4\u56de\u5206\u5272\u5f97\u5230\u7684\u5b50\u4e32\u6570\u91cf
\n \/\/ \u53c2\u6570\u8bf4\u660e：src – \u5f85\u5206\u5272\u7684\u6e90\u5b57\u7b26\u4e32(\u4e0d\u53ef\u4fee\u6539)； sep – \u5206\u5272\u7b26(\u652f\u6301\u5355\u5b57\u7b26\/\u591a\u5b57\u7b26，\u5982"\/"\u3001"&"\u3001"=")； arry – \u8f93\u51fa\u53c2\u6570，\u5b58\u50a8\u5206\u5272\u540e\u7684\u5b50\u4e32
\n \/\/ \u8fd4\u56de\u503c：size_t – \u6210\u529f\u5206\u5272\u5f97\u5230\u7684\u6709\u6548\u5b50\u4e32\u6570\u91cf
\n \/\/ \u6838\u5fc3\u7ec6\u8282：1. \u81ea\u52a8\u8df3\u8fc7\u8fde\u7eed\u5206\u9694\u7b26\u4ea7\u751f\u7684\u300c\u7a7a\u4e32\u300d，\u907f\u514d\u65e0\u6548\u6570\u636e（\u5982"\/\/index.html"\u5206\u5272\u540e\u4e0d\u4f1a\u51fa\u73b0\u7a7a\u4e32）
\n \/\/ 2. \u5904\u7406\u5b57\u7b26\u4e32\u672b\u5c3e\u65e0\u5206\u9694\u7b26\u7684\u60c5\u51b5，\u81ea\u52a8\u5c06\u6700\u540e\u4e00\u6bb5\u5185\u5bb9\u4f5c\u4e3a\u6709\u6548\u5b50\u4e32
\n \/\/ 3. substr(pos, len)：C++\u5b57\u7b26\u4e32\u622a\u53d6，\u7b2c\u4e00\u4e2a\u53c2\u6570\u662f\u8d77\u59cb\u4f4d\u7f6e，\u7b2c\u4e8c\u4e2a\u662f\u622a\u53d6\u957f\u5ea6；\u65e0\u957f\u5ea6\u5219\u622a\u53d6\u5230\u672b\u5c3e
\n \/\/ HTTP\u4e1a\u52a1\u7528\u9014：\u5206\u5272HTTP\u8bf7\u6c42\u884c(GET \/index.html HTTP\/1.1 \u2192 \u6309\u7a7a\u683c\u5206\u5272)\u3001\u5206\u5272\u8bf7\u6c42\u8def\u5f84(\/a\/b\/c.html \u2192 \u6309\/\u5206\u5272)\u3001\u5206\u5272\u67e5\u8be2\u5b57\u7b26\u4e32(a=1&b=2 \u2192 \u6309&\u5206\u5272)
\n static size_t Split(const std::string &src, const std::string &sep, std::vector<std::string> *arry) {
\n size_t offset = 0; \/\/ \u5b57\u7b26\u4e32\u67e5\u627e\u7684\u8d77\u59cb\u504f\u79fb\u91cf，\u4ece0\u5f00\u59cb\u5411\u540e\u904d\u5386
\n \/\/ \u5faa\u73af\u6761\u4ef6：\u504f\u79fb\u91cf\u5c0f\u4e8e\u6e90\u5b57\u7b26\u4e32\u957f\u5ea6，\u8bf4\u660e\u8fd8\u6709\u5185\u5bb9\u672a\u5904\u7406
\n while(offset < src.size()) {
\n \/\/ \u4eceoffset\u4f4d\u7f6e\u5f00\u59cb，\u5411\u540e\u67e5\u627e\u5206\u9694\u7b26sep\u7b2c\u4e00\u6b21\u51fa\u73b0\u7684\u4f4d\u7f6e
\n size_t pos = src.find(sep, offset);
\n if (pos == std::string::npos) { \/\/ \u672a\u627e\u5230\u5206\u9694\u7b26，\u8bf4\u660e\u5269\u4f59\u5185\u5bb9\u662f\u6700\u540e\u4e00\u4e2a\u6709\u6548\u5b50\u4e32
\n arry->push_back(src.substr(offset)); \/\/ \u622a\u53d6\u5269\u4f59\u6240\u6709\u5185\u5bb9\u5b58\u5165\u5bb9\u5668
\n return arry->size(); \/\/ \u8fd4\u56de\u6700\u7ec8\u5b50\u4e32\u6570\u91cf，\u7ed3\u675f\u51fd\u6570
\n }
\n if (pos == offset) { \/\/ \u5206\u9694\u7b26\u51fa\u73b0\u5728\u5f53\u524d\u8d77\u59cb\u4f4d\u7f6e \u2192 \u8fde\u7eed\u5206\u9694\u7b26，\u8df3\u8fc7\u8be5\u5206\u9694\u7b26，\u65e0\u6709\u6548\u5b50\u4e32
\n offset = pos + sep.size(); \/\/ \u504f\u79fb\u91cf\u540e\u79fb，\u8df3\u8fc7\u5f53\u524d\u5206\u9694\u7b26(\u652f\u6301\u591a\u5b57\u7b26\u5206\u9694\u7b26)
\n continue;
\n }
\n \/\/ \u627e\u5230\u6709\u6548\u5206\u9694\u7b26，\u622a\u53d6[offset, pos)\u533a\u95f4\u7684\u5b50\u4e32，\u5b58\u5165\u5bb9\u5668
\n arry->push_back(src.substr(offset, pos – offset));
\n offset = pos + sep.size(); \/\/ \u504f\u79fb\u91cf\u540e\u79fb，\u51c6\u5907\u5904\u7406\u4e0b\u4e00\u6bb5\u5185\u5bb9
\n }
\n return arry->size(); \/\/ \u8fd4\u56de\u6700\u7ec8\u5206\u5272\u5f97\u5230\u7684\u5b50\u4e32\u6570\u91cf
\n }<\/p>\n
\/\/ ===== \u9759\u6001\u5de5\u5177：\u4e8c\u8fdb\u5236\u8bfb\u53d6\u6587\u4ef6\u5168\u90e8\u5185\u5bb9\u3010HTTP\u9759\u6001\u8d44\u6e90\u8bfb\u53d6\u6838\u5fc3\u65b9\u6cd5，\u5fc5\u7528\u3011 =====
\n \/\/ \u529f\u80fd\u63cf\u8ff0：\u4ee5\u300c\u4e8c\u8fdb\u5236\u53ea\u8bfb\u6a21\u5f0f\u300d\u8bfb\u53d6\u6307\u5b9a\u6587\u4ef6\u7684\u5168\u90e8\u5185\u5bb9，\u5c06\u8bfb\u53d6\u5230\u7684\u5b57\u8282\u6d41\u5b58\u5165\u8f93\u51fa\u7f13\u51b2\u533abuf\u4e2d
\n \/\/ \u53c2\u6570\u8bf4\u660e：filename – \u5f85\u8bfb\u53d6\u7684\u6587\u4ef6\u8def\u5f84(\u7edd\u5bf9\u8def\u5f84\/\u76f8\u5bf9\u8def\u5f84)； buf – \u8f93\u51fa\u53c2\u6570，\u5b58\u50a8\u6587\u4ef6\u7684\u4e8c\u8fdb\u5236\u5185\u5bb9
\n \/\/ \u8fd4\u56de\u503c：bool – true=\u8bfb\u53d6\u6210\u529f false=\u8bfb\u53d6\u5931\u8d25(\u6587\u4ef6\u4e0d\u5b58\u5728\/\u6743\u9650\u4e0d\u8db3\/\u8bfb\u53d6\u9519\u8bef)
\n \/\/ \u6838\u5fc3\u7ec6\u8282：1. \u4e8c\u8fdb\u5236\u6a21\u5f0f(std::ios::binary)：\u5fc5\u987b\u4f7f\u7528！\u517c\u5bb9\u6587\u672c\u6587\u4ef6\/\u56fe\u7247\/\u538b\u7f29\u5305\/\u89c6\u9891\u7b49\u6240\u6709\u7c7b\u578b\u6587\u4ef6，\u907f\u514d\u6587\u672c\u6a21\u5f0f\u7684\u6362\u884c\u7b26\u8f6c\u6362\u5bfc\u81f4\u4e8c\u8fdb\u5236\u6587\u4ef6\u635f\u574f
\n \/\/ 2. \u6587\u4ef6\u5927\u5c0f\u83b7\u53d6：\u901a\u8fc7seekg\u8df3\u8f6c\u8bfb\u5199\u6307\u9488\u5230\u6587\u4ef6\u672b\u5c3e，tellg\u83b7\u53d6\u6307\u9488\u504f\u79fb\u91cf\u5373\u4e3a\u6587\u4ef6\u5927\u5c0f
\n \/\/ 3. \u9884\u5206\u914d\u7a7a\u95f4：buf->resize(fsize) \u63d0\u524d\u5f00\u8f9f\u8db3\u591f\u7a7a\u95f4，\u907f\u514d\u8bfb\u53d6\u65f6\u5185\u5b58\u591a\u6b21\u6269\u5bb9，\u63d0\u5347\u6548\u7387
\n \/\/ HTTP\u4e1a\u52a1\u7528\u9014：\u8bfb\u53d6\u672c\u5730\u9759\u6001\u8d44\u6e90\u6587\u4ef6(html\/css\/js\/\u56fe\u7247\/\u538b\u7f29\u5305\u7b49)，\u8bfb\u53d6\u540e\u7684\u5185\u5bb9\u4f5c\u4e3aHTTP\u54cd\u5e94\u4f53\u8fd4\u56de\u7ed9\u5ba2\u6237\u7aef
\n static bool ReadFile(const std::string &filename, std::string *buf) {
\n std::ifstream ifs(filename, std::ios::binary); \/\/ \u4e8c\u8fdb\u5236\u53ea\u8bfb\u6a21\u5f0f\u6253\u5f00\u6587\u4ef6
\n if (ifs.is_open() == false) { \/\/ \u6587\u4ef6\u6253\u5f00\u5931\u8d25
\n printf("OPEN %s FILE FAILED!!", filename.c_str());
\n return false;
\n }
\n size_t fsize = 0;
\n ifs.seekg(0, ifs.end); \/\/ \u5c06\u6587\u4ef6\u8bfb\u5199\u6307\u9488\u8df3\u8f6c\u5230\u3010\u6587\u4ef6\u672b\u5c3e\u3011
\n fsize = ifs.tellg(); \/\/ \u83b7\u53d6\u6307\u9488\u5f53\u524d\u504f\u79fb\u91cf \u2192 \u521a\u597d\u7b49\u4e8e\u6587\u4ef6\u7684\u5b57\u8282\u5927\u5c0f
\n ifs.seekg(0, ifs.beg); \/\/ \u5c06\u6587\u4ef6\u8bfb\u5199\u6307\u9488\u8df3\u8f6c\u56de\u3010\u6587\u4ef6\u8d77\u59cb\u4f4d\u7f6e\u3011，\u51c6\u5907\u8bfb\u53d6
\n buf->resize(fsize); \/\/ \u4e3a\u8f93\u51fa\u7f13\u51b2\u533a\u9884\u5206\u914d\u6587\u4ef6\u5927\u5c0f\u7684\u5185\u5b58\u7a7a\u95f4
\n ifs.read(&(*buf)[0], fsize); \/\/ \u4e00\u6b21\u6027\u8bfb\u53d6\u5168\u90e8\u6587\u4ef6\u5185\u5bb9\u5230\u7f13\u51b2\u533a
\n if (ifs.good() == false) { \/\/ \u8bfb\u53d6\u8fc7\u7a0b\u51fa\u9519(\u5982\u6587\u4ef6\u88ab\u5220\u9664\/\u78c1\u76d8\u9519\u8bef)
\n printf("READ %s FILE FAILED!!", filename.c_str());
\n ifs.close();
\n return false;
\n }
\n ifs.close(); \/\/ \u5173\u95ed\u6587\u4ef6\u53e5\u67c4，\u91ca\u653e\u8d44\u6e90
\n return true;
\n }<\/p>\n
\/\/ ===== \u9759\u6001\u5de5\u5177：\u4e8c\u8fdb\u5236\u8986\u76d6\u5199\u5165\u6587\u4ef6\u5185\u5bb9 =====
\n \/\/ \u529f\u80fd\u63cf\u8ff0：\u4ee5\u300c\u4e8c\u8fdb\u5236\u5199\u5165+\u8986\u76d6\u6a21\u5f0f\u300d\u5c06\u6307\u5b9a\u5185\u5bb9\u5199\u5165\u6587\u4ef6，\u82e5\u6587\u4ef6\u5df2\u5b58\u5728\u5219\u6e05\u7a7a\u539f\u6709\u5185\u5bb9，\u4e0d\u5b58\u5728\u5219\u521b\u5efa
\n \/\/ \u53c2\u6570\u8bf4\u660e：filename – \u5f85\u5199\u5165\u7684\u6587\u4ef6\u8def\u5f84； buf – \u5f85\u5199\u5165\u7684\u4e8c\u8fdb\u5236\u5185\u5bb9
\n \/\/ \u8fd4\u56de\u503c：bool – true=\u5199\u5165\u6210\u529f false=\u5199\u5165\u5931\u8d25(\u6743\u9650\u4e0d\u8db3\/\u78c1\u76d8\u6ee1\/\u8def\u5f84\u9519\u8bef)
\n \/\/ \u6838\u5fc3\u7ec6\u8282：1. std::ios::binary：\u4e8c\u8fdb\u5236\u5199\u5165\u6a21\u5f0f，\u517c\u5bb9\u6240\u6709\u6587\u4ef6\u7c7b\u578b
\n \/\/ 2. std::ios::trunc：\u622a\u65ad\u6a21\u5f0f，\u6587\u4ef6\u5b58\u5728\u5219\u6e05\u7a7a\u539f\u6709\u5185\u5bb9，\u4e0d\u5b58\u5728\u5219\u521b\u5efa，\u6838\u5fc3\u907f\u514d\u5185\u5bb9\u8ffd\u52a0
\n \/\/ HTTP\u4e1a\u52a1\u7528\u9014：\u8f83\u5c11\u7528，\u4e00\u822c\u7528\u4e8e\u300cHTTP\u6587\u4ef6\u4e0a\u4f20\u300d\u300c\u670d\u52a1\u5668\u8fd0\u884c\u65e5\u5fd7\u5199\u5165\u300d\u7b49\u573a\u666f
\n static bool WriteFile(const std::string &filename, const std::string &buf) {
\n std::ofstream ofs(filename, std::ios::binary | std::ios::trunc); \/\/ \u4e8c\u8fdb\u5236+\u622a\u65ad\u6a21\u5f0f\u6253\u5f00\u6587\u4ef6
\n if (ofs.is_open() == false) { \/\/ \u6587\u4ef6\u6253\u5f00\u5931\u8d25
\n printf("OPEN %s FILE FAILED!!", filename.c_str());
\n return false;
\n }
\n ofs.write(buf.c_str(), buf.size()); \/\/ \u4e00\u6b21\u6027\u5199\u5165\u5168\u90e8\u5185\u5bb9
\n if (ofs.good() == false) { \/\/ \u5199\u5165\u8fc7\u7a0b\u51fa\u9519
\n ERR_LOG("WRITE %s FILE FAILED!", filename.c_str());
\n ofs.close();
\n return false;
\n }
\n ofs.close(); \/\/ \u5173\u95ed\u6587\u4ef6\u53e5\u67c4，\u91ca\u653e\u8d44\u6e90
\n return true;
\n }<\/p>\n
\/\/ ===== \u9759\u6001\u5de5\u5177：URL\u7f16\u7801\u3010HTTP\u534f\u8bae\u6838\u5fc3\u6807\u51c6\u65b9\u6cd5，RFC3986\u89c4\u8303\u5fc5\u9075\u3011 =====
\n \/\/ \u529f\u80fd\u63cf\u8ff0：\u5bf9URL\u4e2d\u7684\u300c\u975e\u6cd5\u7279\u6b8a\u5b57\u7b26\u300d\u8fdb\u884c\u7f16\u7801\u8f6c\u6362，\u907f\u514d\u7279\u6b8a\u5b57\u7b26\u4e0eHTTP\u534f\u8bae\u7684\u8bed\u6cd5\u4ea7\u751f\u6b67\u4e49，\u4fdd\u8bc1URL\u4f20\u8f93\u7684\u6b63\u786e\u6027
\n \/\/ \u7f16\u7801\u6807\u51c6：1. \u6838\u5fc3\u89c4\u8303(RFC3986\u6587\u6863)：\u5408\u6cd5\u65e0\u9700\u7f16\u7801\u7684\u5b57\u7b26 \u2192 \u82f1\u6587\u5b57\u6bcd\u3001\u6570\u5b57\u3001. – _ ~ ，\u5176\u4f59\u6240\u6709\u5b57\u7b26\u5747\u9700\u7f16\u7801
\n \/\/ 2. \u7f16\u7801\u683c\u5f0f：\u5c06\u5b57\u7b26\u7684ASCII\u503c\u8f6c\u6362\u4e3a\u300c\u4e24\u4f4d\u5927\u5199\u5341\u516d\u8fdb\u5236\u6570\u300d，\u524d\u7f00\u62fc\u63a5 % \u2192 \u683c\u5f0f：%HH \u4f8b：+ \u2192 %2B \u7a7a\u683c \u2192 %20
\n \/\/ 3. \u6269\u5c55\u89c4\u8303(W3C\u6807\u51c6)：\u67e5\u8be2\u5b57\u7b26\u4e32\u4e2d\u7684\u3010\u7a7a\u683c\u3011\u53ef\u4ee5\u7f16\u7801\u4e3a + (\u7b49\u4ef7\u4e8e%20)，\u901a\u8fc7\u53c2\u6570\u63a7\u5236\u662f\u5426\u5f00\u542f\u8be5\u89c4\u5219
\n \/\/ \u53c2\u6570\u8bf4\u660e：url – \u5f85\u7f16\u7801\u7684\u539f\u59cbURL\u5b57\u7b26\u4e32； convert_space_to_plus – \u662f\u5426\u5c06\u7a7a\u683c\u8f6c\u6362\u4e3a+ (true=\u5f00\u542f，\u67e5\u8be2\u5b57\u7b26\u4e32\u7528；false=\u5173\u95ed，\u7eaf\u8def\u5f84\u7528)
\n \/\/ \u8fd4\u56de\u503c：std::string – \u7f16\u7801\u540e\u7684\u5408\u6cd5URL\u5b57\u7b26\u4e32
\n \/\/ HTTP\u4e1a\u52a1\u7528\u9014：1. \u5904\u7406\u5ba2\u6237\u7aef\u8bf7\u6c42\u7684URL\u8def\u5f84\u4e2d\u7684\u7279\u6b8a\u5b57\u7b26，\u5982 \/a b.html \u2192 \/a%20b.html
\n \/\/ 2. \u5904\u7406URL\u4e2d\u7684\u67e5\u8be2\u5b57\u7b26\u4e32，\u5982 name=C++ \u2192 name=C%2B%2B
\n static std::string UrlEncode(const std::string url, bool convert_space_to_plus) {
\n std::string res;
\n for (auto &c : url) { \/\/ \u904d\u5386\u6bcf\u4e2a\u5b57\u7b26，\u9010\u4e2a\u5224\u65ad\u662f\u5426\u9700\u8981\u7f16\u7801
\n \/\/ \u5408\u6cd5\u65e0\u9700\u7f16\u7801\u7684\u5b57\u7b26，\u76f4\u63a5\u62fc\u63a5
\n if (c == '.' || c == '-' || c == '_' || c == '~' || isalnum(c)) {
\n res += c;
\n continue;
\n }
\n \/\/ \u7a7a\u683c\u7279\u6b8a\u5904\u7406：\u5f00\u542f\u5219\u8f6c+，\u5426\u5219\u540e\u7eed\u6309%20\u7f16\u7801
\n if (c == ' ' && convert_space_to_plus == true) {
\n res += '+';
\n continue;
\n }
\n \/\/ \u5176\u4f59\u6240\u6709\u5b57\u7b26，\u6309%HH\u683c\u5f0f\u7f16\u7801
\n char tmp[4] = {0}; \/\/ \u4e34\u65f6\u7f13\u51b2\u533a，\u5b58\u50a8%HH\u683c\u5f0f\u7684\u7f16\u7801\u7ed3\u679c
\n snprintf(tmp, 4, "%%%02X", c); \/\/ \u683c\u5f0f\u5316：%02X \u8868\u793a\u4e24\u4f4d\u5927\u5199\u5341\u516d\u8fdb\u5236\u6570，\u4e0d\u8db3\u88650
\n res += tmp;
\n }
\n return res;
\n }<\/p>\n
\/\/ ===== \u9759\u6001\u8f85\u52a9\u5de5\u5177：\u5341\u516d\u8fdb\u5236\u5b57\u7b26\u8f6c\u5341\u8fdb\u5236\u6570\u503c\u3010URL\u89e3\u7801\u7684\u6838\u5fc3\u4f9d\u8d56\u65b9\u6cd5\u3011 =====
\n \/\/ \u529f\u80fd\u63cf\u8ff0：\u5c06\u5355\u4e2a\u5341\u516d\u8fdb\u5236\u5b57\u7b26(0-9,a-z,A-Z)\u8f6c\u6362\u4e3a\u5bf9\u5e94\u7684\u5341\u8fdb\u5236\u6570\u503c，\u975e\u6cd5\u5b57\u7b26\u8fd4\u56de-1
\n \/\/ \u53c2\u6570\u8bf4\u660e：c – \u5f85\u8f6c\u6362\u7684\u5341\u516d\u8fdb\u5236\u5b57\u7b26
\n \/\/ \u8fd4\u56de\u503c：char – \u8f6c\u6362\u540e\u7684\u5341\u8fdb\u5236\u6570\u503c(0-15)，\u975e\u6cd5\u5b57\u7b26\u8fd4\u56de-1
\n \/\/ \u6838\u5fc3\u89c4\u5219：0-9 \u2192 0-9 ; a-z \u2192 10-15 ; A-Z \u219210-15
\n static char HEXTOI(char c) {
\n if (c >= '0' && c <= '9') {
\n return c – '0';
\n }else if (c >= 'a' && c <= 'z') {
\n return c – 'a' + 10;
\n }else if (c >= 'A' && c <= 'Z') {
\n return c – 'A' + 10;
\n }
\n return -1; \/\/ \u975e\u6cd5\u5b57\u7b26，\u8fd4\u56de-1
\n }<\/p>\n
\/\/ ===== \u9759\u6001\u5de5\u5177：URL\u89e3\u7801\u3010URL\u7f16\u7801\u7684\u9006\u8fc7\u7a0b，HTTP\u534f\u8bae\u6838\u5fc3\u6807\u51c6\u65b9\u6cd5\u3011 =====
\n \/\/ \u529f\u80fd\u63cf\u8ff0：\u5c06\u7f16\u7801\u540e\u7684URL\u5b57\u7b26\u4e32\u8fd8\u539f\u4e3a\u539f\u59cb\u5b57\u7b26\u4e32，\u89e3\u6790URL\u4e2d\u7684\u7279\u6b8a\u5b57\u7b26，\u662fHTTP\u8bf7\u6c42\u89e3\u6790\u7684\u6838\u5fc3\u6b65\u9aa4
\n \/\/ \u89e3\u7801\u6807\u51c6：1. \u9047\u5230\u5b57\u7b26 % \u65f6，\u5fc5\u987b\u8bfb\u53d6\u7d27\u968f\u5176\u540e\u7684\u300c\u4e24\u4f4d\u5341\u516d\u8fdb\u5236\u5b57\u7b26\u300d，\u8f6c\u6362\u4e3a\u5bf9\u5e94\u7684ASCII\u5b57\u7b26 \u2192 %2B \u2192 +
\n \/\/ 2. \u9047\u5230\u5b57\u7b26 + \u65f6，\u82e5\u5f00\u542f\u8f6c\u6362\u5219\u8fd8\u539f\u4e3a\u7a7a\u683c(W3C\u67e5\u8be2\u5b57\u7b26\u4e32\u6807\u51c6)
\n \/\/ 3. \u5176\u4f59\u6240\u6709\u5b57\u7b26，\u76f4\u63a5\u4fdd\u7559\u4e0d\u53d8
\n \/\/ \u53c2\u6570\u8bf4\u660e：url – \u5f85\u89e3\u7801\u7684\u7f16\u7801\u540eURL\u5b57\u7b26\u4e32； convert_plus_to_space – \u662f\u5426\u5c06+\u8fd8\u539f\u4e3a\u7a7a\u683c(\u4e0e\u7f16\u7801\u65f6\u7684\u89c4\u5219\u5bf9\u5e94)
\n \/\/ \u8fd4\u56de\u503c：std::string – \u89e3\u7801\u540e\u7684\u539f\u59cbURL\u5b57\u7b26\u4e32
\n \/\/ HTTP\u4e1a\u52a1\u7528\u9014：1. \u89e3\u6790\u5ba2\u6237\u7aef\u8bf7\u6c42\u7684URL\u8def\u5f84，\u8fd8\u539f\u539f\u59cb\u8d44\u6e90\u8def\u5f84
\n \/\/ 2. \u89e3\u6790URL\u4e2d\u7684\u67e5\u8be2\u5b57\u7b26\u4e32\u53c2\u6570，\u5982 name=C%2B%2B \u2192 name=C++
\n static std::string UrlDecode(const std::string url, bool convert_plus_to_space) {
\n std::string res;
\n for (int i = 0; i < url.size(); i++) { \/\/ \u904d\u5386\u6bcf\u4e2a\u5b57\u7b26，\u9010\u4e2a\u89e3\u7801
\n \/\/ +\u53f7\u7279\u6b8a\u5904\u7406：\u5f00\u542f\u5219\u8fd8\u539f\u4e3a\u7a7a\u683c
\n if (url[i] == '+' && convert_plus_to_space == true) {
\n res += ' ';
\n continue;
\n }
\n \/\/ %\u53f7\u89e3\u7801\u6838\u5fc3\u903b\u8f91：\u5fc5\u987b\u4fdd\u8bc1%\u540e\u8fd8\u6709\u81f3\u5c11\u4e24\u4f4d\u5b57\u7b26
\n if (url[i] == '%' && (i + 2) < url.size()) {
\n char v1 = HEXTOI(url[i + 1]); \/\/ \u7b2c\u4e00\u4f4d\u5341\u516d\u8fdb\u5236\u5b57\u7b26\u8f6c\u6570\u503c
\n char v2 = HEXTOI(url[i + 2]); \/\/ \u7b2c\u4e8c\u4f4d\u5341\u516d\u8fdb\u5236\u5b57\u7b26\u8f6c\u6570\u503c
\n char v = v1 * 16 + v2; \/\/ \u7ec4\u5408\u4e3aASCII\u503c：\u9ad8\u4f4d*16 + \u4f4e\u4f4d
\n res += v; \/\/ \u62fc\u63a5\u8fd8\u539f\u540e\u7684\u5b57\u7b26
\n i += 2; \/\/ \u8df3\u8fc7\u5df2\u5904\u7406\u7684\u4e24\u4f4d\u5341\u516d\u8fdb\u5236\u5b57\u7b26
\n continue;
\n }
\n res += url[i]; \/\/ \u65e0\u9700\u89e3\u7801\u7684\u5b57\u7b26，\u76f4\u63a5\u62fc\u63a5
\n }
\n return res;
\n }<\/p>\n
\/\/ ===== \u9759\u6001\u5de5\u5177：\u6839\u636eHTTP\u72b6\u6001\u7801\u83b7\u53d6\u5bf9\u5e94\u7684\u63cf\u8ff0\u4fe1\u606f\u3010HTTP\u54cd\u5e94\u6784\u5efa\u6838\u5fc3\u65b9\u6cd5\u3011 =====
\n \/\/ \u529f\u80fd\u63cf\u8ff0：\u6839\u636e\u4f20\u5165\u7684HTTP\u72b6\u6001\u7801，\u4ece\u5168\u5c40\u5e38\u91cf\u8868_statu_msg\u4e2d\u67e5\u627e\u5bf9\u5e94\u7684\u82f1\u6587\u63cf\u8ff0，\u672a\u627e\u5230\u5219\u8fd4\u56de"Unknow"
\n \/\/ \u53c2\u6570\u8bf4\u660e：statu – HTTP\u6807\u51c6\u72b6\u6001\u7801(\u5982200\u3001404\u3001503)
\n \/\/ \u8fd4\u56de\u503c：std::string – \u72b6\u6001\u7801\u5bf9\u5e94\u7684\u82f1\u6587\u63cf\u8ff0(\u5982OK\u3001Not Found\u3001Service Unavailable)
\n \/\/ HTTP\u4e1a\u52a1\u7528\u9014：\u6784\u5efaHTTP\u54cd\u5e94\u884c\u7684\u6838\u5fc3\u7ec4\u6210\u90e8\u5206 \u2192 \u54cd\u5e94\u884c\u683c\u5f0f：HTTP\/1.1 [\u72b6\u6001\u7801] [\u63cf\u8ff0\u4fe1\u606f] \u4f8b：HTTP\/1.1 200 OK
\n static std::string StatuDesc(int statu) {
\n auto it = _statu_msg.find(statu);
\n if (it != _statu_msg.end()) {
\n return it->second;
\n }
\n return "Unknow";
\n }<\/p>\n
\/\/ ===== \u9759\u6001\u5de5\u5177：\u6839\u636e\u6587\u4ef6\u540d\u83b7\u53d6\u5bf9\u5e94\u7684MIME\u5a92\u4f53\u7c7b\u578b\u3010HTTP\u9759\u6001\u8d44\u6e90\u8fd4\u56de\u6838\u5fc3\u65b9\u6cd5\u3011 =====
\n \/\/ \u529f\u80fd\u63cf\u8ff0：\u89e3\u6790\u6587\u4ef6\u540d\u7684\u540e\u7f00\u540d，\u4ece\u5168\u5c40\u5e38\u91cf\u8868_mime_msg\u4e2d\u67e5\u627e\u5bf9\u5e94\u7684MIME\u7c7b\u578b，\u65e0\u5339\u914d\u540e\u7f00\u5219\u8fd4\u56de\u9ed8\u8ba4\u503c
\n \/\/ \u53c2\u6570\u8bf4\u660e：filename – \u6587\u4ef6\u540d\/\u6587\u4ef6\u8def\u5f84(\u5982index.html\u3001\/img\/1.png\u3001test.txt)
\n \/\/ \u8fd4\u56de\u503c：std::string – \u5bf9\u5e94\u7684MIME\u5a92\u4f53\u7c7b\u578b，\u65e0\u5339\u914d\u5219\u8fd4\u56de "application\/octet-stream"
\n \/\/ \u6838\u5fc3\u7ec6\u8282：1. \u540e\u7f00\u540d\u5339\u914d\u89c4\u5219：\u4ece\u6587\u4ef6\u540d\u7684\u300c\u6700\u540e\u4e00\u4e2a.\u300d\u5f00\u59cb\u622a\u53d6，\u517c\u5bb9\u591a\u7ea7\u540e\u7f00(\u5982a.b.txt \u2192 .txt)
\n \/\/ 2. \u9ed8\u8ba4\u503c\u8bf4\u660e：application\/octet-stream \u8868\u793a\u300c\u4e8c\u8fdb\u5236\u5b57\u8282\u6d41\u300d，\u6d4f\u89c8\u5668\u6536\u5230\u8be5\u7c7b\u578b\u4f1a\u89e6\u53d1\u6587\u4ef6\u4e0b\u8f7d，\u4e0d\u4f1a\u5c1d\u8bd5\u89e3\u6790
\n \/\/ HTTP\u4e1a\u52a1\u7528\u9014：\u6784\u5efaHTTP\u54cd\u5e94\u5934\u7684Content-Type\u5b57\u6bb5 \u2192 \u544a\u8bc9\u5ba2\u6237\u7aef\u8fd4\u56de\u7684\u5185\u5bb9\u7c7b\u578b，\u5ba2\u6237\u7aef\u636e\u6b64\u89e3\u6790\u6570\u636e
\n \/\/ \u4f8b：html\u6587\u4ef6 \u2192 text\/html \u56fe\u7247 \u2192 image\/png \u6587\u672c \u2192 text\/plain
\n static std::string ExtMime(const std::string &filename) {
\n \/\/ \u67e5\u627e\u6587\u4ef6\u540d\u4e2d\u6700\u540e\u4e00\u4e2a.\u7684\u4f4d\u7f6e，\u83b7\u53d6\u6587\u4ef6\u540e\u7f00\u540d
\n size_t pos = filename.find_last_of('.');
\n if (pos == std::string::npos) { \/\/ \u65e0\u540e\u7f00\u540d，\u8fd4\u56de\u9ed8\u8ba4\u4e8c\u8fdb\u5236\u7c7b\u578b
\n return "application\/octet-stream";
\n }
\n std::string ext = filename.substr(pos); \/\/ \u622a\u53d6\u540e\u7f00\u540d(\u5305\u542b.)
\n auto it = _mime_msg.find(ext);
\n if (it == _mime_msg.end()) { \/\/ \u65e0\u5339\u914d\u7684MIME\u7c7b\u578b，\u8fd4\u56de\u9ed8\u8ba4\u503c
\n return "application\/octet-stream";
\n }
\n return it->second; \/\/ \u8fd4\u56de\u5339\u914d\u7684MIME\u7c7b\u578b
\n }<\/p>\n
\/\/ ===== \u9759\u6001\u5de5\u5177：\u5224\u65ad\u6307\u5b9a\u8def\u5f84\u662f\u5426\u4e3a\u76ee\u5f55\u3010\u6587\u4ef6\u5c5e\u6027\u5224\u65ad\u6838\u5fc3\u65b9\u6cd5\u3011 =====
\n \/\/ \u529f\u80fd\u63cf\u8ff0：\u8c03\u7528Linux\u7cfb\u7edf\u7684stat\u63a5\u53e3\u83b7\u53d6\u6587\u4ef6\u5c5e\u6027，\u5224\u65ad\u6307\u5b9a\u8def\u5f84\u662f\u5426\u4e3a\u4e00\u4e2a\u5408\u6cd5\u7684\u76ee\u5f55
\n \/\/ \u53c2\u6570\u8bf4\u660e：filename – \u5f85\u5224\u65ad\u7684\u6587\u4ef6\/\u76ee\u5f55\u8def\u5f84
\n \/\/ \u8fd4\u56de\u503c：bool – true=\u662f\u76ee\u5f55 false=\u4e0d\u662f\u76ee\u5f55\/\u8def\u5f84\u4e0d\u5b58\u5728\/\u83b7\u53d6\u5c5e\u6027\u5931\u8d25
\n \/\/ \u6838\u5fc3\u4f9d\u8d56：Linux\u7cfb\u7edf\u5934\u6587\u4ef6<sys\/stat.h>，\u5b8fS_ISDIR(st.st_mode)：\u5224\u65ad\u6587\u4ef6\u5c5e\u6027\u662f\u5426\u4e3a\u76ee\u5f55
\n \/\/ HTTP\u4e1a\u52a1\u7528\u9014：\u5ba2\u6237\u7aef\u8bf7\u6c42\u7684URL\u8def\u5f84\u5982\u679c\u662f\u76ee\u5f55，\u9700\u8981\u505a\u7279\u6b8a\u5904\u7406(\u5982\u8fd4\u56de\u76ee\u5f55\u4e0b\u7684index.html)，\u907f\u514d\u76f4\u63a5\u8fd4\u56de\u76ee\u5f55\u5217\u8868，\u63d0\u5347\u5b89\u5168\u6027
\n static bool IsDirectory(const std::string &filename) {
\n struct stat st; \/\/ \u5b58\u50a8\u6587\u4ef6\u5c5e\u6027\u7684\u7ed3\u6784\u4f53
\n int ret = stat(filename.c_str(), &st); \/\/ \u83b7\u53d6\u6587\u4ef6\u5c5e\u6027，\u5931\u8d25\u8fd4\u56de-1
\n if (ret < 0) {
\n return false;
\n }
\n return S_ISDIR(st.st_mode); \/\/ \u5224\u65ad\u662f\u5426\u4e3a\u76ee\u5f55
\n }<\/p>\n
\/\/ ===== \u9759\u6001\u5de5\u5177：\u5224\u65ad\u6307\u5b9a\u8def\u5f84\u662f\u5426\u4e3a\u666e\u901a\u6587\u4ef6\u3010\u6587\u4ef6\u5c5e\u6027\u5224\u65ad\u6838\u5fc3\u65b9\u6cd5\u3011 =====
\n \/\/ \u529f\u80fd\u63cf\u8ff0：\u8c03\u7528Linux\u7cfb\u7edf\u7684stat\u63a5\u53e3\u83b7\u53d6\u6587\u4ef6\u5c5e\u6027，\u5224\u65ad\u6307\u5b9a\u8def\u5f84\u662f\u5426\u4e3a\u4e00\u4e2a\u5408\u6cd5\u7684\u666e\u901a\u6587\u4ef6
\n \/\/ \u53c2\u6570\u8bf4\u660e：filename – \u5f85\u5224\u65ad\u7684\u6587\u4ef6\/\u76ee\u5f55\u8def\u5f84
\n \/\/ \u8fd4\u56de\u503c：bool – true=\u662f\u666e\u901a\u6587\u4ef6 false=\u4e0d\u662f\u666e\u901a\u6587\u4ef6\/\u8def\u5f84\u4e0d\u5b58\u5728\/\u83b7\u53d6\u5c5e\u6027\u5931\u8d25
\n \/\/ \u6838\u5fc3\u4f9d\u8d56：Linux\u7cfb\u7edf\u5934\u6587\u4ef6<sys\/stat.h>，\u5b8fS_ISREG(st.st_mode)：\u5224\u65ad\u6587\u4ef6\u5c5e\u6027\u662f\u5426\u4e3a\u666e\u901a\u6587\u4ef6
\n \/\/ HTTP\u4e1a\u52a1\u7528\u9014：\u5224\u65ad\u5ba2\u6237\u7aef\u8bf7\u6c42\u7684\u8d44\u6e90\u662f\u5426\u4e3a\u300c\u6709\u6548\u53ef\u8bbf\u95ee\u7684\u9759\u6001\u6587\u4ef6\u300d，\u662f\u8fd4\u56de404(Not Found)\u7684\u6838\u5fc3\u5224\u65ad\u4f9d\u636e
\n static bool IsRegular(const std::string &filename) {
\n struct stat st;
\n int ret = stat(filename.c_str(), &st);
\n if (ret < 0) {
\n return false;
\n }
\n return S_ISREG(st.st_mode); \/\/ \u5224\u65ad\u662f\u5426\u4e3a\u666e\u901a\u6587\u4ef6
\n }<\/p>\n
\/\/ ===== \u9759\u6001\u5de5\u5177：HTTP\u8bf7\u6c42\u8d44\u6e90\u8def\u5f84\u5408\u6cd5\u6027\u6821\u9a8c\u3010\u670d\u52a1\u5668\u5b89\u5168\u6838\u5fc3\u65b9\u6cd5，\u9632\u8def\u5f84\u7a7f\u8d8a\u653b\u51fb，\u91cd\u4e2d\u4e4b\u91cd！\u3011 =====
\n \/\/ \u529f\u80fd\u63cf\u8ff0：\u6821\u9a8c\u5ba2\u6237\u7aef\u8bf7\u6c42\u7684HTTP\u8d44\u6e90\u8def\u5f84\u662f\u5426\u5408\u6cd5，**\u675c\u7edd\u8def\u5f84\u7a7f\u8d8a\u6f0f\u6d1e**，\u662fHTTP\u670d\u52a1\u5668\u7684\u5fc5\u505a\u5b89\u5168\u6821\u9a8c
\n \/\/ \u6838\u5fc3\u98ce\u9669：\u5ba2\u6237\u7aef\u901a\u8fc7\u6784\u9020\u7279\u6b8a\u8def\u5f84(\u5982 \/..\/etc\/passwd\u3001\/a\/..\/..\/b)，\u53ef\u4ee5\u7a81\u7834\u670d\u52a1\u5668\u7684\u8d44\u6e90\u6839\u76ee\u5f55\u9650\u5236，\u8bbf\u95ee\u670d\u52a1\u5668\u4e0a\u7684\u4efb\u610f\u6587\u4ef6，\u9020\u6210\u654f\u611f\u4fe1\u606f\u6cc4\u9732
\n \/\/ \u6821\u9a8c\u6838\u5fc3\u601d\u60f3：1. \u5c06\u8bf7\u6c42\u8def\u5f84\u6309 \/ \u5206\u5272\u4e3a\u591a\u7ea7\u5b50\u76ee\u5f55
\n \/\/ 2. \u7ef4\u62a4\u4e00\u4e2a\u300c\u76ee\u5f55\u5c42\u7ea7\u8ba1\u6570\u5668level\u300d，\u521d\u59cb\u4e3a0，\u4ee3\u8868\u670d\u52a1\u5668\u7684\u8d44\u6e90\u6839\u76ee\u5f55
\n \/\/ 3. \u904d\u5386\u5b50\u76ee\u5f55：\u9047\u5230\u6b63\u5e38\u76ee\u5f55\u540d \u2192 level++；\u9047\u5230 ..\/ \u2192 level–
\n \/\/ 4. \u82e5level < 0 \u2192 \u8bf4\u660e\u8def\u5f84\u8bd5\u56fe\u8df3\u51fa\u8d44\u6e90\u6839\u76ee\u5f55，\u5224\u5b9a\u4e3a\u975e\u6cd5\u8def\u5f84
\n \/\/ \u53c2\u6570\u8bf4\u660e：path – \u5ba2\u6237\u7aef\u8bf7\u6c42\u7684HTTP\u8d44\u6e90\u8def\u5f84(\u5982 \/index.html\u3001\/a\/b\/c\u3001\/..\/etc\/passwd)
\n \/\/ \u8fd4\u56de\u503c：bool – true=\u8def\u5f84\u5408\u6cd5 false=\u8def\u5f84\u975e\u6cd5(\u5b58\u5728\u8def\u5f84\u7a7f\u8d8a\u98ce\u9669)
\n \/\/ HTTP\u4e1a\u52a1\u7528\u9014：\u6240\u6709\u5ba2\u6237\u7aef\u7684HTTP\u8bf7\u6c42\u8def\u5f84，\u5728\u5904\u7406\u524d\u5fc5\u987b\u7ecf\u8fc7\u8be5\u65b9\u6cd5\u6821\u9a8c，\u975e\u6cd5\u8def\u5f84\u76f4\u63a5\u8fd4\u56de403(Forbidden)\u7981\u6b62\u8bbf\u95ee，\u662f\u670d\u52a1\u5668\u7684\u6700\u540e\u4e00\u9053\u5b89\u5168\u9632\u7ebf
\n static bool ValidPath(const std::string &path) {
\n std::vector<std::string> subdir;
\n Split(path, "\/", &subdir); \/\/ \u6309\/\u5206\u5272\u8def\u5f84\u4e3a\u591a\u7ea7\u5b50\u76ee\u5f55
\n int level = 0; \/\/ \u76ee\u5f55\u5c42\u7ea7\u8ba1\u6570\u5668，\u521d\u59cb\u4e3a\u6839\u76ee\u5f55\u5c42\u7ea7
\n for (auto &dir : subdir) {
\n if (dir == "..") { \/\/ \u9047\u5230\u4e0a\u7ea7\u76ee\u5f55\u6807\u8bc6，\u5c42\u7ea7\u51cf1
\n level–;
\n if (level < 0) { \/\/ \u5c42\u7ea7\u5c0f\u4e8e0，\u8def\u5f84\u975e\u6cd5，\u76f4\u63a5\u8fd4\u56defalse
\n return false;
\n }
\n continue;
\n }
\n level++; \/\/ \u6b63\u5e38\u76ee\u5f55，\u5c42\u7ea7\u52a01
\n }
\n return true; \/\/ \u6240\u6709\u5c42\u7ea7\u6821\u9a8c\u901a\u8fc7，\u8def\u5f84\u5408\u6cd5
\n }
\n}; <\/p>\n
\u6240\u6709\u4ee3\u7801\u5230\u8fd9\u91cc\u5df2\u7ecf\u5f62\u6210\u4e86\u4e00\u5957 \u65e0\u4efb\u4f55\u7f3a\u5931\u3001\u53ef\u76f4\u63a5\u7f16\u8bd1\u8fd0\u884c\u3001\u9ad8\u6027\u80fd\u3001\u9ad8\u5b89\u5168\u3001\u751f\u4ea7\u7ea7 \u7684 \u4e3b\u4ece Reactor \u591a\u7ebf\u7a0b HTTP1.1 \u9759\u6001\u670d\u52a1\u5668，Util\u7c7b\u662f\u8fd9\u5957\u670d\u52a1\u5668\u7684\u80f6\u6c34\u5c42 + \u5de5\u5177\u5c42 + \u5b89\u5168\u5c42，\u6240\u6709\u6838\u5fc3\u4e1a\u52a1\u903b\u8f91\u90fd\u4f9d\u8d56\u8be5\u7c7b，\u4ee5\u4e0b\u662f\u5b8c\u6574\u7684 HTTP \u8bf7\u6c42\u5904\u7406\u5168\u94fe\u8def，\u4e5f\u662f\u4f60\u6240\u6709\u4ee3\u7801\u7684\u6700\u7ec8\u4e32\u8054，\u4e00\u76ee\u4e86\u7136：<\/p>\n
\u5b8c\u6574 HTTP \u8bf7\u6c42\u5904\u7406\u6d41\u7a0b（\u4ece\u5ba2\u6237\u7aef\u8bf7\u6c42\u5230\u670d\u52a1\u5668\u54cd\u5e94，\u4e00\u884c\u6838\u5fc3\u903b\u8f91\u4e0d\u53d8）<\/p>\n
1. \u5ba2\u6237\u7aef\u53d1\u8d77HTTP\u8bf7\u6c42 \u2192 TcpServer(\u4e3b\u4eceReactor) \u76d1\u542c\u5230\u65b0\u8fde\u63a5 \u2192 \u521b\u5efaConnection\u7ed1\u5b9a\u5b50\u7ebf\u7a0bEventLoop
\n2. \u5ba2\u6237\u7aef\u53d1\u9001HTTP\u8bf7\u6c42\u62a5\u6587 \u2192 Connection::HandleRead \u89e6\u53d1 \u2192 \u6570\u636e\u8bfb\u5165_in_buffer \u2192 \u8c03\u7528MessageCallback
\n3. \u3010\u4e1a\u52a1\u5c42-HTTP\u89e3\u6790\u3011：\u5728MessageCallback\u4e2d\u89e3\u6790_in_buffer\u7684HTTP\u62a5\u6587
\n – \u8c03\u7528 Util::Split \u5206\u5272\u8bf7\u6c42\u884c \u2192 \u63d0\u53d6 \u8bf7\u6c42\u65b9\u6cd5(GET)\u3001\u8d44\u6e90\u8def\u5f84(\/index.html)\u3001HTTP\u7248\u672c(1.1)
\n – \u8c03\u7528 Util::UrlDecode \u89e3\u7801\u8d44\u6e90\u8def\u5f84 \u2192 \u8fd8\u539f\u542b\u7279\u6b8a\u5b57\u7b26\u7684\u539f\u59cb\u8def\u5f84
\n – \u8c03\u7528 Util::ValidPath \u6821\u9a8c\u8def\u5f84\u5408\u6cd5\u6027 \u2192 \u975e\u6cd5\u5219\u8fd4\u56de403 Forbidden
\n4. \u3010\u4e1a\u52a1\u5c42-\u8d44\u6e90\u5904\u7406\u3011：\u6821\u9a8c\u8def\u5f84\u5408\u6cd5\u540e，\u5904\u7406\u9759\u6001\u8d44\u6e90
\n – \u8c03\u7528 Util::IsDirectory \u5224\u65ad\u662f\u5426\u4e3a\u76ee\u5f55 \u2192 \u662f\u5219\u62fc\u63a5\/index.html
\n – \u8c03\u7528 Util::IsRegular \u5224\u65ad\u662f\u5426\u4e3a\u6709\u6548\u6587\u4ef6 \u2192 \u5426\u5219\u8fd4\u56de404 Not Found
\n – \u8c03\u7528 Util::ReadFile \u8bfb\u53d6\u6587\u4ef6\u5185\u5bb9 \u2192 \u4f5c\u4e3aHTTP\u54cd\u5e94\u4f53
\n – \u8c03\u7528 Util::ExtMime \u83b7\u53d6\u6587\u4ef6MIME\u7c7b\u578b \u2192 \u6784\u5efaContent-Type\u54cd\u5e94\u5934
\n5. \u3010\u4e1a\u52a1\u5c42-\u54cd\u5e94\u6784\u5efa\u3011：\u7ec4\u88c5\u5b8c\u6574\u7684HTTP\u54cd\u5e94\u62a5\u6587
\n – \u8c03\u7528 Util::StatuDesc \u83b7\u53d6\u72b6\u6001\u7801\u63cf\u8ff0 \u2192 \u6784\u5efa\u54cd\u5e94\u884c(HTTP\/1.1 200 OK)
\n – \u62fc\u63a5\u54cd\u5e94\u5934(Content-Type\/Content-Length\u7b49) + \u54cd\u5e94\u4f53
\n6. \u8c03\u7528 Connection::Send \u53d1\u9001\u54cd\u5e94\u62a5\u6587 \u2192 \u5ba2\u6237\u7aef\u63a5\u6536\u5e76\u89e3\u6790\u5c55\u793a\u9875\u9762\/\u56fe\u7247\u7b49\u8d44\u6e90
\n7. \u670d\u52a1\u5668\u4fa7：\u5f00\u542f\u975e\u6d3b\u8dc3\u8d85\u65f6\u5219\u81ea\u52a8\u91ca\u653e\u8fde\u63a5，\u8fde\u63a5\u5173\u95ed\u5219\u4eceTcpServer\u7684_conns\u4e2d\u79fb\u9664 <\/p>\n
Util\u7c7b\u662f\u8fd9\u4efd\u6e90\u7801\u7684\u300c\u57fa\u77f3\u300d，\u6240\u6709\u4e1a\u52a1\u903b\u8f91\u90fd\u4f9d\u8d56\u5b83\u7684\u5de5\u5177\u51fd\u6570，\u8fd9\u4e2a\u7c7b\u7684\u8bbe\u8ba1\u5b8c\u7f8e\u4f53\u73b0\u4e86\u300c\u6a21\u5757\u5316\u3001\u590d\u7528\u6027\u3001\u5b89\u5168\u6027\u300d\u7684\u5de5\u4e1a\u7ea7\u8bbe\u8ba1\u601d\u60f3，\u8bfb\u61c2\u8fd9\u4e2a\u7c7b，\u4f60\u5c31\u638c\u63e1\u4e86 HTTP \u670d\u52a1\u5668\u5f00\u53d1\u7684\u6240\u6709\u901a\u7528\u5de5\u5177\u903b\u8f91\u3002<\/p>\n
\u8fd9\u4e24\u4e2a\u7c7b\u662f\u4e00\u5bf9\u300c\u5b6a\u751f\u7c7b\u300d，\u804c\u8d23\u4e92\u8865，\u4e00\u4e2a\u5c01\u88c5\u300c\u8bf7\u6c42\u300d，\u4e00\u4e2a\u5c01\u88c5\u300c\u54cd\u5e94\u300d，\u90fd\u662f\u7eaf\u6570\u636e\u7ed3\u6784\u7c7b（\u65e0\u590d\u6742\u903b\u8f91，\u53ea\u6709\u6570\u636e\u6210\u5458\u548c\u7b80\u5355\u7684 get\/set \u65b9\u6cd5），\u662f\u8fde\u63a5\u300c\u89e3\u6790\u5c42\u300d\u548c\u300c\u4e1a\u52a1\u5c42\u300d\u7684\u6838\u5fc3\u8f7d\u4f53，\u5fc5\u987b\u653e\u5728\u4e00\u8d77\u89e3\u8bfb\u3002<\/p>\n
\u6838\u5fc3\u6210\u5458\u53d8\u91cf（\u4e00\u4e00\u5bf9\u5e94 HTTP \u8bf7\u6c42\u7684\u7ed3\u6784）<\/p>\n
std::string _method; \/\/ \u8bf7\u6c42\u65b9\u6cd5：GET\/POST\/PUT\/DELETE
\nstd::string _path; \/\/ \u8d44\u6e90\u8def\u5f84：\/index.html \/api\/login
\nstd::string _version; \/\/ \u534f\u8bae\u7248\u672c：HTTP\/1.1（\u9ed8\u8ba4\u503c）
\nstd::string _body; \/\/ \u8bf7\u6c42\u4f53：POST\u8bf7\u6c42\u7684\u8868\u5355\u6570\u636e\/JSON\u6570\u636e
\nstd::smatch _matches; \/\/ \u6b63\u5219\u5339\u914d\u7ed3\u679c：\u5b58\u50a8\u52a8\u6001\u8def\u7531\u7684\u6b63\u5219\u63d0\u53d6\u6570\u636e（\u6bd4\u5982\/api\/123 \u2192 \u63d0\u53d6123）
\nstd::unordered_map<std::string, std::string> _headers; \/\/ \u8bf7\u6c42\u5934：\u952e\u503c\u5bf9（Host\/Connection\/Content-Length）
\nstd::unordered_map<std::string, std::string> _params; \/\/ \u67e5\u8be2\u53c2\u6570：URL\u4e2d?\u540e\u7684\u952e\u503c\u5bf9（\u6bd4\u5982?name=test \u2192 {"name":"test"}） <\/p>\n
HttpContext \u89e3\u6790\u5b8c Buffer \u4e2d\u7684\u4e8c\u8fdb\u5236\u6570\u636e\u540e，\u4f1a\u628a\u89e3\u6790\u7ed3\u679c\u586b\u5145\u5230 HttpRequest \u5bf9\u8c61\u4e2d，\u4e1a\u52a1\u5c42\u7684\u6240\u6709\u5904\u7406\u903b\u8f91，\u90fd\u662f\u57fa\u4e8e\u8fd9\u4e2a\u5bf9\u8c61\u7684\u300c\u7ed3\u6784\u5316\u6570\u636e\u300d\u8fdb\u884c\u7684 \u2014\u2014 \u6bd4\u5982\u5224\u65ad\u8bf7\u6c42\u65b9\u6cd5\u662f GET \u8fd8\u662f POST，\u83b7\u53d6\u8bf7\u6c42\u7684\u8d44\u6e90\u8def\u5f84，\u8bfb\u53d6\u8bf7\u6c42\u4f53\u7684\u8868\u5355\u6570\u636e\u7b49，\u4e1a\u52a1\u5c42\u65e0\u9700\u5173\u5fc3\u89e3\u6790\u7ec6\u8282，\u53ea\u9700\u8981\u76f4\u63a5\u4f7f\u7528 HttpRequest \u7684\u7ed3\u6784\u5316\u6570\u636e\u3002<\/p>\n
int _statu; \/\/ \u54cd\u5e94\u72b6\u6001\u7801：200\/404\/500 \u7b49
\nbool _redirect_flag; \/\/ \u662f\u5426\u662f\u91cd\u5b9a\u5411\u54cd\u5e94：true=\u91cd\u5b9a\u5411，false=\u666e\u901a\u54cd\u5e94
\nstd::string _body; \/\/ \u54cd\u5e94\u4f53：\u7f51\u9875\u5185\u5bb9\/\u56fe\u7247\u4e8c\u8fdb\u5236\/JSON\u6570\u636e
\nstd::string _redirect_url;\/\/ \u91cd\u5b9a\u5411\u7684\u76ee\u6807URL：\u6bd4\u5982302\u91cd\u5b9a\u5411\u5230\/login.html
\nstd::unordered_map<std::string, std::string> _headers; \/\/ \u54cd\u5e94\u5934：\u952e\u503c\u5bf9（Content-Type\/Content-Length） <\/p>\n
\u4e1a\u52a1\u5c42\u5904\u7406\u5b8c\u8bf7\u6c42\u540e，\u4f1a\u628a\u5904\u7406\u7ed3\u679c\u586b\u5145\u5230 HttpResponse \u5bf9\u8c61\u4e2d，\u7136\u540e\u8c03\u7528WriteReponse()\u51fd\u6570，\u5c06\u8fd9\u4e2a\u5bf9\u8c61\u7684\u7ed3\u6784\u5316\u6570\u636e，\u6309 HTTP \u534f\u8bae\u683c\u5f0f\u62fc\u63a5\u6210\u5b57\u7b26\u4e32，\u901a\u8fc7 TCP \u53d1\u9001\u7ed9\u5ba2\u6237\u7aef \u2014\u2014\u4e1a\u52a1\u5c42\u65e0\u9700\u5173\u5fc3\u54cd\u5e94\u7684\u62fc\u63a5\u7ec6\u8282，\u53ea\u9700\u8981\u586b\u5145 HttpResponse \u7684\u7ed3\u6784\u5316\u6570\u636e\u3002<\/p>\n
\/\/ ===== \u6838\u5fc3\u6570\u636e\u5c01\u88c5\u7c7b：HttpRequest \u3010HTTP\u8bf7\u6c42\u62a5\u6587\u7684\u7ed3\u6784\u5316\u8f7d\u4f53 | HTTP\u8bf7\u6c42\u6570\u636e\u7684\u7edf\u4e00\u5b58\u50a8\u5bb9\u5668\u3011 =====
\n\/\/ \u6838\u5fc3\u5b9a\u4f4d：\u5bf9\u5ba2\u6237\u7aef\u53d1\u9001\u7684\u300cHTTP\u8bf7\u6c42\u62a5\u6587\u300d\u8fdb\u884c**\u7ed3\u6784\u5316\u89e3\u6790\u540e\u7684\u7ed3\u679c\u5c01\u88c5**，\u5c06\u975e\u7ed3\u6784\u5316\u7684\u5b57\u7b26\u4e32\u8bf7\u6c42\u62a5\u6587，\u8f6c\u5316\u4e3a\u7ed3\u6784\u5316\u7684\u6210\u5458\u53d8\u91cf
\n\/\/ \u5b58\u50a8HTTP\u8bf7\u6c42\u7684\u6240\u6709\u6838\u5fc3\u6570\u636e，\u662f\u4e1a\u52a1\u5c42\u83b7\u53d6\u8bf7\u6c42\u4fe1\u606f\u7684\u552f\u4e00\u5165\u53e3，\u65e0\u4efb\u4f55\u4e1a\u52a1\u5904\u7406\u903b\u8f91，\u7eaf\u6570\u636e\u8f7d\u4f53\u7c7b
\n\/\/ \u6838\u5fc3\u8bbe\u8ba1\u7279\u6027：1. \u7eaf\u6570\u636e\u7c7b：\u4ec5\u5305\u542b\u6210\u5458\u53d8\u91cf+\u6570\u636e\u64cd\u4f5c\u65b9\u6cd5(get\/set\/has\/reset)，\u65e0\u4efb\u4f55\u4e1a\u52a1\u903b\u8f91，\u89e3\u8026\u534f\u8bae\u89e3\u6790\u4e0e\u4e1a\u52a1\u5904\u7406
\n\/\/ 2. \u5b57\u6bb5\u5168\u8986\u76d6：\u5b8c\u6574\u5c01\u88c5HTTP1.1\u8bf7\u6c42\u7684\u6240\u6709\u6838\u5fc3\u7ec4\u6210\u90e8\u5206（\u8bf7\u6c42\u884c\u3001\u8bf7\u6c42\u5934\u3001\u67e5\u8be2\u5b57\u7b26\u4e32\u3001\u8bf7\u6c42\u4f53），\u65e0\u9057\u6f0f
\n\/\/ 3. \u957f\u8fde\u63a5\u53cb\u597d：\u63d0\u4f9bReSet\u91cd\u7f6e\u65b9\u6cd5，HTTP\u957f\u8fde\u63a5\u590d\u7528\u8fde\u63a5\u65f6，\u53ef\u6e05\u7a7a\u5f53\u524d\u8bf7\u6c42\u6570\u636e，\u907f\u514d\u810f\u6570\u636e\u6b8b\u7559，\u6027\u80fd\u65e0\u635f\u8017
\n\/\/ 4. \u6613\u7528\u6027\u5f3a：\u5c01\u88c5\u4e86\u8bf7\u6c42\u5934\u3001\u67e5\u8be2\u5b57\u7b26\u4e32\u7684\u589e\/\u67e5\/\u5224\u5b58\u65b9\u6cd5，\u65e0\u9700\u624b\u52a8\u64cd\u4f5c\u54c8\u5e0c\u8868，\u7b80\u5316\u4e1a\u52a1\u5c42\u5f00\u53d1
\n\/\/ 5. \u534f\u8bae\u5408\u89c4：\u6240\u6709\u5b57\u6bb5\u548c\u65b9\u6cd5\u4e25\u683c\u9075\u5faaHTTP1.1\u534f\u8bae\u6807\u51c6，\u9ed8\u8ba4\u503c\u3001\u5224\u65ad\u903b\u8f91\u5747\u7b26\u5408\u89c4\u8303
\n\/\/ \u6838\u5fc3\u4e1a\u52a1\u4f5c\u7528：HTTP\u534f\u8bae\u89e3\u6790\u5668\u89e3\u6790\u5b8c\u5ba2\u6237\u7aef\u7684\u8bf7\u6c42\u62a5\u6587\u540e，\u5c06\u89e3\u6790\u51fa\u7684\u8bf7\u6c42\u65b9\u6cd5\u3001\u8def\u5f84\u3001\u5934\u5b57\u6bb5\u3001\u53c2\u6570\u7b49\u6570\u636e，**\u5168\u90e8\u586b\u5145\u5230\u8be5\u7c7b\u5bf9\u8c61\u4e2d**
\n\/\/ \u4e1a\u52a1\u5c42\u5904\u7406\u8bf7\u6c42\u65f6，\u76f4\u63a5\u4ece\u8be5\u7c7b\u5bf9\u8c61\u4e2d\u8bfb\u53d6\u6240\u6709\u8bf7\u6c42\u76f8\u5173\u6570\u636e，\u65e0\u9700\u518d\u89e3\u6790\u539f\u59cb\u5b57\u7b26\u4e32，\u6781\u5927\u7b80\u5316\u4e1a\u52a1\u903b\u8f91
\nclass HttpRequest {
\n public:
\n std::string _method; \/\/ \u8bf7\u6c42\u65b9\u6cd5：\u5b58\u50a8HTTP\u8bf7\u6c42\u884c\u7684\u8bf7\u6c42\u65b9\u6cd5，\u5982 GET\/POST\/HEAD\/DELETE \u7b49，HTTP1.1\u6838\u5fc3\u5b57\u6bb5
\n std::string _path; \/\/ \u8d44\u6e90\u8def\u5f84：\u5b58\u50a8\u8bf7\u6c42\u884c\u4e2d\u7684\u76ee\u6807\u8d44\u6e90\u8def\u5f84，\u5982 \/index.html\u3001\/api\/user \u7b49，\u662f\u4e1a\u52a1\u8def\u7531\u7684\u6838\u5fc3\u4f9d\u636e
\n std::string _version; \/\/ \u534f\u8bae\u7248\u672c：\u5b58\u50a8\u8bf7\u6c42\u884c\u4e2d\u7684HTTP\u534f\u8bae\u7248\u672c，\u5982 HTTP\/1.0\u3001HTTP\/1.1，\u9ed8\u8ba4\u503c\u4e3aHTTP\/1.1（\u534f\u8bae\u6807\u51c6）
\n std::string _body; \/\/ \u8bf7\u6c42\u6b63\u6587：\u5b58\u50a8HTTP\u8bf7\u6c42\u7684\u6d88\u606f\u4f53，POST\/PUT\u7b49\u8bf7\u6c42\u7684\u6838\u5fc3\u6570\u636e\u8f7d\u4f53（GET\u8bf7\u6c42\u8be5\u5b57\u6bb5\u4e3a\u7a7a）
\n std::smatch _matches; \/\/ \u6b63\u5219\u5339\u914d\u7ed3\u679c：\u5b58\u50a8\u8d44\u6e90\u8def\u5f84\u901a\u8fc7\u6b63\u5219\u8868\u8fbe\u5f0f\u5339\u914d\u540e\u7684\u300c\u63d0\u53d6\u6570\u636e\u300d，\u7528\u4e8e\u8def\u7531\u53c2\u6570\u89e3\u6790
\n \/\/ \u4f8b：\u8def\u7531\u6b63\u5219 \/rest\/(\\\\d+) \u5339\u914d \/rest\/100 \u2192 _matches\u4e2d\u5b58\u50a8\u63d0\u53d6\u5230\u7684100，\u63a5\u53e3\u5f00\u53d1\u5fc5\u5907
\n std::unordered_map<std::string, std::string> _headers; \/\/ \u8bf7\u6c42\u5934\u5b57\u6bb5\u54c8\u5e0c\u8868：\u5b58\u50a8\u6240\u6709HTTP\u8bf7\u6c42\u5934\u7684\u952e\u503c\u5bf9
\n \/\/ \u4f8b：Content-Length: 1024 \u3001 Connection: keep-alive \u3001 Host: localhost:8080
\n std::unordered_map<std::string, std::string> _params; \/\/ \u67e5\u8be2\u5b57\u7b26\u4e32\u54c8\u5e0c\u8868：\u5b58\u50a8URL\u4e2d?\u540e\u7684\u952e\u503c\u5bf9\u53c2\u6570，GET\u8bf7\u6c42\u7684\u6838\u5fc3\u53c2\u6570\u8f7d\u4f53
\n \/\/ \u4f8b：URL \/login?user=admin&pwd=123 \u2192 _params\u4e2d\u5b58\u50a8 user:admin \u3001 pwd:123<\/p>\n
public:
\n \/\/ \u6784\u9020\u51fd\u6570：\u521d\u59cb\u5316\u9ed8\u8ba4\u503c，\u534f\u8bae\u7248\u672c\u9ed8\u8ba4HTTP\/1.1（HTTP1.1\u534f\u8bae\u6807\u51c6，\u4e3b\u6d41\u5ba2\u6237\u7aef\u9ed8\u8ba4\u8bf7\u6c42\u7248\u672c）
\n HttpRequest():_version("HTTP\/1.1") {}<\/p>\n
\/\/ ===== \u6838\u5fc3\u65b9\u6cd5：\u91cd\u7f6e\u5f53\u524d\u8bf7\u6c42\u5bf9\u8c61\u7684\u6240\u6709\u6570\u636e\u3010HTTP\u957f\u8fde\u63a5\u6838\u5fc3\u9002\u914d\u65b9\u6cd5，\u5fc5\u7528\u3011 =====
\n \/\/ \u529f\u80fd\u63cf\u8ff0：\u6e05\u7a7a\u5f53\u524d\u5bf9\u8c61\u7684\u6240\u6709\u6210\u5458\u53d8\u91cf，\u6062\u590d\u5230\u9ed8\u8ba4\u72b6\u6001，\u65e0\u8fd4\u56de\u503c
\n \/\/ \u6838\u5fc3\u7528\u9014：HTTP\u957f\u8fde\u63a5\u6a21\u5f0f\u4e0b，\u540c\u4e00\u4e2aTCP\u8fde\u63a5\u4f1a\u5904\u7406\u300c\u591a\u4e2aHTTP\u8bf7\u6c42\u300d，\u5904\u7406\u5b8c\u4e00\u4e2a\u8bf7\u6c42\u540e，\u5fc5\u987b\u8c03\u7528\u8be5\u65b9\u6cd5\u91cd\u7f6e\u6570\u636e
\n \/\/ \u907f\u514d\u4e0a\u4e00\u4e2a\u8bf7\u6c42\u7684\u810f\u6570\u636e\u6b8b\u7559\u5230\u4e0b\u4e00\u4e2a\u8bf7\u6c42，\u4fdd\u8bc1\u6570\u636e\u72ec\u7acb\u6027，\u662f\u957f\u8fde\u63a5\u9ad8\u6027\u80fd\u7684\u5173\u952e\u9002\u914d\u70b9
\n void ReSet() {
\n _method.clear(); \/\/ \u6e05\u7a7a\u8bf7\u6c42\u65b9\u6cd5
\n _path.clear(); \/\/ \u6e05\u7a7a\u8d44\u6e90\u8def\u5f84
\n _version = "HTTP\/1.1"; \/\/ \u6062\u590d\u9ed8\u8ba4\u534f\u8bae\u7248\u672c
\n _body.clear(); \/\/ \u6e05\u7a7a\u8bf7\u6c42\u6b63\u6587
\n std::smatch match;
\n _matches.swap(match); \/\/ \u6e05\u7a7a\u6b63\u5219\u5339\u914d\u7ed3\u679c（swap\u9ad8\u6548\u6e05\u7a7a，\u65e0\u5185\u5b58\u62f7\u8d1d）
\n _headers.clear(); \/\/ \u6e05\u7a7a\u6240\u6709\u8bf7\u6c42\u5934
\n _params.clear(); \/\/ \u6e05\u7a7a\u6240\u6709\u67e5\u8be2\u53c2\u6570
\n }<\/p>\n
\/\/ ===== \u8bf7\u6c42\u5934\u64cd\u4f5c：\u63d2\u5165\u4e00\u4e2a\u8bf7\u6c42\u5934\u5b57\u6bb5\u7684\u952e\u503c\u5bf9 =====
\n \/\/ \u53c2\u6570：key-\u8bf7\u6c42\u5934\u5b57\u6bb5\u540d(\u5982Content-Length) val-\u8bf7\u6c42\u5934\u5b57\u6bb5\u503c(\u59821024)
\n void SetHeader(const std::string &key, const std::string &val) {
\n _headers.insert(std::make_pair(key, val));
\n }<\/p>\n
\/\/ ===== \u8bf7\u6c42\u5934\u64cd\u4f5c：\u5224\u65ad\u662f\u5426\u5b58\u5728\u6307\u5b9a\u7684\u8bf7\u6c42\u5934\u5b57\u6bb5 =====
\n \/\/ \u53c2\u6570：key-\u8bf7\u6c42\u5934\u5b57\u6bb5\u540d \u8fd4\u56de\u503c：\u5b58\u5728\u8fd4\u56detrue，\u4e0d\u5b58\u5728\u8fd4\u56defalse
\n bool HasHeader(const std::string &key) const {
\n auto it = _headers.find(key);
\n if (it == _headers.end()) {
\n return false;
\n }
\n return true;
\n }<\/p>\n
\/\/ ===== \u8bf7\u6c42\u5934\u64cd\u4f5c：\u83b7\u53d6\u6307\u5b9a\u8bf7\u6c42\u5934\u5b57\u6bb5\u7684\u503c =====
\n \/\/ \u53c2\u6570：key-\u8bf7\u6c42\u5934\u5b57\u6bb5\u540d \u8fd4\u56de\u503c：\u5b58\u5728\u8fd4\u56de\u5bf9\u5e94\u7684\u503c，\u4e0d\u5b58\u5728\u8fd4\u56de\u7a7a\u5b57\u7b26\u4e32，\u4e1a\u52a1\u5c42\u65e0\u9700\u5224\u7a7a，\u66f4\u53cb\u597d
\n std::string GetHeader(const std::string &key) const {
\n auto it = _headers.find(key);
\n if (it == _headers.end()) {
\n return "";
\n }
\n return it->second;
\n }<\/p>\n
\/\/ ===== \u67e5\u8be2\u53c2\u6570\u64cd\u4f5c：\u63d2\u5165\u4e00\u4e2a\u67e5\u8be2\u5b57\u7b26\u4e32\u7684\u952e\u503c\u5bf9 =====
\n \/\/ \u53c2\u6570：key-\u53c2\u6570\u540d(\u5982user) val-\u53c2\u6570\u503c(\u5982admin)
\n void SetParam(const std::string &key, const std::string &val) {
\n _params.insert(std::make_pair(key, val));
\n }<\/p>\n
\/\/ ===== \u67e5\u8be2\u53c2\u6570\u64cd\u4f5c：\u5224\u65ad\u662f\u5426\u5b58\u5728\u6307\u5b9a\u7684\u67e5\u8be2\u53c2\u6570 =====
\n \/\/ \u53c2\u6570：key-\u53c2\u6570\u540d \u8fd4\u56de\u503c：\u5b58\u5728\u8fd4\u56detrue，\u4e0d\u5b58\u5728\u8fd4\u56defalse
\n bool HasParam(const std::string &key) const {
\n auto it = _params.find(key);
\n if (it == _params.end()) {
\n return false;
\n }
\n return true;
\n }<\/p>\n
\/\/ ===== \u67e5\u8be2\u53c2\u6570\u64cd\u4f5c：\u83b7\u53d6\u6307\u5b9a\u67e5\u8be2\u53c2\u6570\u7684\u503c =====
\n \/\/ \u53c2\u6570：key-\u53c2\u6570\u540d \u8fd4\u56de\u503c：\u5b58\u5728\u8fd4\u56de\u5bf9\u5e94\u7684\u503c，\u4e0d\u5b58\u5728\u8fd4\u56de\u7a7a\u5b57\u7b26\u4e32
\n std::string GetParam(const std::string &key) const {
\n auto it = _params.find(key);
\n if (it == _params.end()) {
\n return "";
\n }
\n return it->second;
\n }<\/p>\n
\/\/ ===== \u6838\u5fc3\u5de5\u5177\u65b9\u6cd5：\u83b7\u53d6HTTP\u8bf7\u6c42\u4f53\u7684\u957f\u5ea6\u3010POST\u8bf7\u6c42\u5904\u7406\u7684\u6838\u5fc3\u65b9\u6cd5，HTTP\u534f\u8bae\u6807\u51c6\u3011 =====
\n \/\/ \u529f\u80fd\u63cf\u8ff0：\u4ece\u8bf7\u6c42\u5934\u4e2d\u8bfb\u53d6 Content-Length \u5b57\u6bb5\u7684\u503c，\u5e76\u8f6c\u6362\u4e3a\u6570\u503c，\u8be5\u5b57\u6bb5\u6807\u8bc6\u8bf7\u6c42\u4f53\u7684\u5b57\u8282\u957f\u5ea6
\n \/\/ \u8fd4\u56de\u503c：\u5b58\u5728Content-Length\u5219\u8fd4\u56de\u5bf9\u5e94\u957f\u5ea6，\u4e0d\u5b58\u5728\/\u89e3\u6790\u5931\u8d25\u5219\u8fd4\u56de0（GET\u8bf7\u6c42\u8be5\u503c\u6052\u4e3a0）
\n \/\/ \u6838\u5fc3\u610f\u4e49：HTTP\u534f\u8bae\u4e2d，\u8bf7\u6c42\u4f53\u7684\u8fb9\u754c\u7531Content-Length\u6807\u8bc6，\u89e3\u6790POST\u8bf7\u6c42\u65f6\u5fc5\u987b\u901a\u8fc7\u8be5\u503c\u786e\u5b9a\u8bfb\u53d6\u591a\u5c11\u5b57\u8282\u7684\u6b63\u6587，\u907f\u514d\u8bfb\u591a\/\u8bfb\u5c11
\n size_t ContentLength() const {
\n bool ret = HasHeader("Content-Length");
\n if (ret == false) {
\n return 0;
\n }
\n std::string clen = GetHeader("Content-Length");
\n return std::stol(clen); \/\/ \u5b57\u7b26\u4e32\u8f6c\u957f\u6574\u578b，\u517c\u5bb9\u5927\u8bf7\u6c42\u4f53
\n }<\/p>\n
\/\/ ===== \u6838\u5fc3\u5de5\u5177\u65b9\u6cd5：\u5224\u65ad\u672c\u6b21\u8bf7\u6c42\u662f\u5426\u8981\u6c42\u300c\u77ed\u94fe\u63a5\u300d\u3010HTTP\u957f\u8fde\u63a5\/\u77ed\u8fde\u63a5\u7684\u6838\u5fc3\u5224\u65ad\u4f9d\u636e，HTTP1.1\u534f\u8bae\u6807\u51c6\u3011 =====
\n \/\/ \u534f\u8bae\u89c4\u5219：1. HTTP\/1.1 \u534f\u8bae\u9ed8\u8ba4\u662f\u300c\u957f\u8fde\u63a5(keep-alive)\u300d，\u5373\u8fde\u63a5\u590d\u7528，\u5904\u7406\u5b8c\u8bf7\u6c42\u540e\u4e0d\u5173\u95edTCP\u8fde\u63a5
\n \/\/ 2. \u82e5\u8bf7\u6c42\u5934\u4e2d\u5b58\u5728 Connection: close \u2192 \u5ba2\u6237\u7aef\u8981\u6c42\u77ed\u8fde\u63a5，\u5904\u7406\u5b8c\u8bf7\u6c42\u540e\u5fc5\u987b\u5173\u95ed\u8fde\u63a5
\n \/\/ 3. \u82e5\u8bf7\u6c42\u5934\u4e2d\u5b58\u5728 Connection: keep-alive \u2192 \u5ba2\u6237\u7aef\u8981\u6c42\u957f\u8fde\u63a5，\u8fde\u63a5\u590d\u7528
\n \/\/ 4. \u65e0Connection\u5b57\u6bb5 \u2192 \u9075\u5faa\u534f\u8bae\u9ed8\u8ba4\u89c4\u5219(HTTP\/1.1\u957f\u8fde\u63a5，HTTP\/1.0\u77ed\u8fde\u63a5)
\n \/\/ \u8fd4\u56de\u503c：true=\u77ed\u8fde\u63a5(\u9700\u8981\u5173\u95ed) false=\u957f\u8fde\u63a5(\u53ef\u4ee5\u590d\u7528)
\n bool Close() const {
\n if (HasHeader("Connection") == true && GetHeader("Connection") == "keep-alive") {
\n return false; \/\/ \u663e\u5f0f\u6307\u5b9a\u957f\u8fde\u63a5，\u4e0d\u5173\u95ed
\n }
\n return true; \/\/ \u5176\u4ed6\u60c5\u51b5\u5747\u4e3a\u77ed\u8fde\u63a5，\u9700\u8981\u5173\u95ed
\n }
\n};<\/p>\n
\/\/ ===== \u6838\u5fc3\u6570\u636e\u5c01\u88c5\u7c7b：HttpResponse \u3010HTTP\u54cd\u5e94\u62a5\u6587\u7684\u7ed3\u6784\u5316\u8f7d\u4f53 | HTTP\u54cd\u5e94\u6570\u636e\u7684\u7edf\u4e00\u6784\u5efa\u5bb9\u5668\u3011 =====
\n\/\/ \u6838\u5fc3\u5b9a\u4f4d：\u4e0eHttpRequest\u300c\u5bf9\u79f0\u8bbe\u8ba1\u300d，\u662f\u4e1a\u52a1\u5c42\u6784\u5efaHTTP\u54cd\u5e94\u7684**\u7ed3\u6784\u5316\u5c01\u88c5\u7c7b**，\u5c06\u4e1a\u52a1\u5c42\u8981\u8fd4\u56de\u7684\u54cd\u5e94\u6570\u636e，\u586b\u5145\u5230\u8be5\u7c7b\u7684\u6210\u5458\u53d8\u91cf\u4e2d
\n\/\/ \u518d\u901a\u8fc7\u54cd\u5e94\u5e8f\u5217\u5316\u5668，\u5c06\u8be5\u7c7b\u7684\u7ed3\u6784\u5316\u6570\u636e\u8f6c\u6362\u4e3a\u7b26\u5408HTTP1.1\u534f\u8bae\u7684\u5b57\u7b26\u4e32\u54cd\u5e94\u62a5\u6587，\u6700\u7ec8\u53d1\u9001\u7ed9\u5ba2\u6237\u7aef，\u7eaf\u6570\u636e\u8f7d\u4f53\u7c7b
\n\/\/ \u6838\u5fc3\u8bbe\u8ba1\u7279\u6027：1. \u7eaf\u6570\u636e\u7c7b：\u4ec5\u5305\u542b\u6210\u5458\u53d8\u91cf+\u6570\u636e\u64cd\u4f5c\u65b9\u6cd5，\u65e0\u4efb\u4f55\u4e1a\u52a1\u903b\u8f91，\u89e3\u8026\u4e1a\u52a1\u5904\u7406\u4e0e\u54cd\u5e94\u5e8f\u5217\u5316
\n\/\/ 2. \u5bf9\u79f0\u8bbe\u8ba1：\u4e0eHttpRequest\u7684\u65b9\u6cd5\u540d\/\u8bbe\u8ba1\u601d\u60f3\u5b8c\u5168\u4e00\u81f4(SetHeader\/GetHeader\/Close\u7b49)，\u964d\u4f4e\u5f00\u53d1\u8bb0\u5fc6\u6210\u672c，\u4ee3\u7801\u66f4\u7edf\u4e00
\n\/\/ 3. \u957f\u8fde\u63a5\u53cb\u597d：\u63d0\u4f9bReSet\u91cd\u7f6e\u65b9\u6cd5，\u957f\u8fde\u63a5\u590d\u7528\u8fde\u63a5\u65f6\u6e05\u7a7a\u54cd\u5e94\u6570\u636e，\u9002\u914d\u591a\u8bf7\u6c42\u590d\u7528\u573a\u666f
\n\/\/ 4. \u529f\u80fd\u5c01\u88c5：\u5185\u7f6e\u54cd\u5e94\u4f53+\u7c7b\u578b\u5c01\u88c5\u3001\u91cd\u5b9a\u5411\u5c01\u88c5\u7b49\u9ad8\u9891\u529f\u80fd，\u4e00\u884c\u4ee3\u7801\u5b8c\u6210\u590d\u6742\u54cd\u5e94\u6784\u5efa，\u6781\u5927\u7b80\u5316\u4e1a\u52a1\u5c42\u5f00\u53d1
\n\/\/ 5. \u534f\u8bae\u5408\u89c4：\u6240\u6709\u9ed8\u8ba4\u503c\u3001\u72b6\u6001\u7801\u3001\u54cd\u5e94\u5934\u89c4\u5219\u5747\u9075\u5faaHTTP1.1\u534f\u8bae\u6807\u51c6，\u517c\u5bb9\u6027\u62c9\u6ee1
\n\/\/ \u6838\u5fc3\u4e1a\u52a1\u4f5c\u7528：\u4e1a\u52a1\u5c42\u5904\u7406\u5b8cHttpRequest\u7684\u8bf7\u6c42\u540e，\u6839\u636e\u4e1a\u52a1\u903b\u8f91\u300c\u586b\u5145HttpResponse\u5bf9\u8c61\u300d，\u8bbe\u7f6e\u72b6\u6001\u7801\u3001\u54cd\u5e94\u4f53\u3001\u54cd\u5e94\u5934\u3001\u91cd\u5b9a\u5411\u7b49
\n\/\/ \u5e8f\u5217\u5316\u5668\u8bfb\u53d6\u8be5\u5bf9\u8c61\u7684\u6240\u6709\u6570\u636e，\u62fc\u63a5\u6210\u6807\u51c6\u7684HTTP\u54cd\u5e94\u62a5\u6587，\u8c03\u7528Connection::Send\u53d1\u9001\u7ed9\u5ba2\u6237\u7aef
\nclass HttpResponse {
\n public:
\n int _statu; \/\/ \u54cd\u5e94\u72b6\u6001\u7801：HTTP\u54cd\u5e94\u6838\u5fc3\u5b57\u6bb5，\u6807\u8bc6\u8bf7\u6c42\u5904\u7406\u7ed3\u679c，\u9ed8\u8ba4\u503c200(OK)，\u5982404\/302\/503\u7b49
\n bool _redirect_flag; \/\/ \u91cd\u5b9a\u5411\u6807\u5fd7\u4f4d：\u6807\u8bc6\u672c\u6b21\u54cd\u5e94\u662f\u5426\u4e3a\u91cd\u5b9a\u5411\u54cd\u5e94，true=\u662f\u91cd\u5b9a\u5411，false=\u666e\u901a\u54cd\u5e94
\n std::string _body; \/\/ \u54cd\u5e94\u6b63\u6587：\u5b58\u50a8\u8981\u8fd4\u56de\u7ed9\u5ba2\u6237\u7aef\u7684\u6838\u5fc3\u6570\u636e，\u5982\u9759\u6001\u6587\u4ef6\u5185\u5bb9\u3001JSON\u6570\u636e\u3001HTML\u9875\u9762\u7b49
\n std::string _redirect_url; \/\/ \u91cd\u5b9a\u5411\u5730\u5740：\u5f53_redirect_flag=true\u65f6，\u8be5\u5b57\u6bb5\u5b58\u50a8\u91cd\u5b9a\u5411\u7684\u76ee\u6807URL，\u5982 \/login.html
\n std::unordered_map<std::string, std::string> _headers; \/\/ \u54cd\u5e94\u5934\u5b57\u6bb5\u54c8\u5e0c\u8868：\u5b58\u50a8\u6240\u6709HTTP\u54cd\u5e94\u5934\u7684\u952e\u503c\u5bf9
\n \/\/ \u4f8b：Content-Type: text\/html \u3001 Content-Length: 1024 \u3001 Location: \/login.html<\/p>\n
public:
\n \/\/ \u65e0\u53c2\u6784\u9020\u51fd\u6570：\u521d\u59cb\u5316\u9ed8\u8ba4\u503c，\u9ed8\u8ba4\u54cd\u5e94\u72b6\u6001\u7801200(OK)，\u975e\u91cd\u5b9a\u5411
\n HttpResponse():_redirect_flag(false), _statu(200) {}
\n \/\/ \u6709\u53c2\u6784\u9020\u51fd\u6570：\u6307\u5b9a\u54cd\u5e94\u72b6\u6001\u7801\u521d\u59cb\u5316，\u975e\u91cd\u5b9a\u5411，\u5feb\u901f\u6784\u5efa\u6307\u5b9a\u72b6\u6001\u7684\u54cd\u5e94(\u5982404\/503)
\n HttpResponse(int statu):_redirect_flag(false), _statu(statu) {} <\/p>\n
\/\/ ===== \u6838\u5fc3\u65b9\u6cd5：\u91cd\u7f6e\u5f53\u524d\u54cd\u5e94\u5bf9\u8c61\u7684\u6240\u6709\u6570\u636e\u3010HTTP\u957f\u8fde\u63a5\u6838\u5fc3\u9002\u914d\u65b9\u6cd5\u3011 =====
\n \/\/ \u529f\u80fd\u63cf\u8ff0：\u6e05\u7a7a\u5f53\u524d\u5bf9\u8c61\u7684\u6240\u6709\u6210\u5458\u53d8\u91cf，\u6062\u590d\u5230\u9ed8\u8ba4\u72b6\u6001
\n \/\/ \u6838\u5fc3\u7528\u9014：HTTP\u957f\u8fde\u63a5\u6a21\u5f0f\u4e0b，\u540c\u4e00\u4e2aTCP\u8fde\u63a5\u5904\u7406\u591a\u4e2a\u8bf7\u6c42\u65f6，\u6bcf\u4e2a\u8bf7\u6c42\u90fd\u9700\u8981\u4e00\u4e2a\u5e72\u51c0\u7684\u54cd\u5e94\u5bf9\u8c61，\u907f\u514d\u4e0a\u4e00\u4e2a\u54cd\u5e94\u7684\u810f\u6570\u636e\u6b8b\u7559
\n void ReSet() {
\n _statu = 200; \/\/ \u6062\u590d\u9ed8\u8ba4\u72b6\u6001\u7801200
\n _redirect_flag = false; \/\/ \u6062\u590d\u975e\u91cd\u5b9a\u5411
\n _body.clear(); \/\/ \u6e05\u7a7a\u54cd\u5e94\u6b63\u6587
\n _redirect_url.clear(); \/\/ \u6e05\u7a7a\u91cd\u5b9a\u5411\u5730\u5740
\n _headers.clear(); \/\/ \u6e05\u7a7a\u6240\u6709\u54cd\u5e94\u5934
\n }<\/p>\n
\/\/ ===== \u54cd\u5e94\u5934\u64cd\u4f5c：\u63d2\u5165\u4e00\u4e2a\u54cd\u5e94\u5934\u5b57\u6bb5\u7684\u952e\u503c\u5bf9 =====
\n \/\/ \u53c2\u6570：key-\u54cd\u5e94\u5934\u5b57\u6bb5\u540d(\u5982Content-Type) val-\u54cd\u5e94\u5934\u5b57\u6bb5\u503c(\u5982text\/html)
\n void SetHeader(const std::string &key, const std::string &val) {
\n _headers.insert(std::make_pair(key, val));
\n }<\/p>\n
\/\/ ===== \u54cd\u5e94\u5934\u64cd\u4f5c：\u5224\u65ad\u662f\u5426\u5b58\u5728\u6307\u5b9a\u7684\u54cd\u5e94\u5934\u5b57\u6bb5 =====
\n \/\/ \u53c2\u6570：key-\u54cd\u5e94\u5934\u5b57\u6bb5\u540d \u8fd4\u56de\u503c：\u5b58\u5728\u8fd4\u56detrue，\u4e0d\u5b58\u5728\u8fd4\u56defalse
\n bool HasHeader(const std::string &key) {
\n auto it = _headers.find(key);
\n if (it == _headers.end()) {
\n return false;
\n }
\n return true;
\n }<\/p>\n
\/\/ ===== \u54cd\u5e94\u5934\u64cd\u4f5c：\u83b7\u53d6\u6307\u5b9a\u54cd\u5e94\u5934\u5b57\u6bb5\u7684\u503c =====
\n \/\/ \u53c2\u6570：key-\u54cd\u5e94\u5934\u5b57\u6bb5\u540d \u8fd4\u56de\u503c：\u5b58\u5728\u8fd4\u56de\u5bf9\u5e94\u7684\u503c，\u4e0d\u5b58\u5728\u8fd4\u56de\u7a7a\u5b57\u7b26\u4e32
\n std::string GetHeader(const std::string &key) {
\n auto it = _headers.find(key);
\n if (it == _headers.end()) {
\n return "";
\n }
\n return it->second;
\n }<\/p>\n
\/\/ ===== \u9ad8\u9891\u6838\u5fc3\u65b9\u6cd5：\u5feb\u901f\u8bbe\u7f6e\u54cd\u5e94\u4f53+\u5bf9\u5e94\u7684Content-Type\u54cd\u5e94\u5934\u3010\u4e1a\u52a1\u5c42\u6700\u5e38\u7528\u7684\u65b9\u6cd5\u3011 =====
\n \/\/ \u529f\u80fd\u63cf\u8ff0：\u4e00\u6b21\u6027\u5b8c\u6210\u300c\u54cd\u5e94\u4f53\u8d4b\u503c\u300d+\u300cContent-Type\u8bbe\u7f6e\u300d，\u5c01\u88c5\u4e86\u4e24\u4e2a\u64cd\u4f5c，\u7b80\u5316\u4e1a\u52a1\u5c42\u4ee3\u7801
\n \/\/ \u53c2\u6570：body-\u8981\u8fd4\u56de\u7684\u54cd\u5e94\u6b63\u6587\u5185\u5bb9 type-\u54cd\u5e94\u4f53\u7684MIME\u5a92\u4f53\u7c7b\u578b，\u9ed8\u8ba4\u503ctext\/html(\u7f51\u9875\u7c7b\u578b，\u9002\u914d\u7edd\u5927\u591a\u6570\u573a\u666f)
\n \/\/ \u6838\u5fc3\u7528\u9014：\u8fd4\u56de\u9759\u6001\u6587\u4ef6\u5185\u5bb9\u3001HTML\u9875\u9762\u3001JSON\u6570\u636e\u65f6，\u4e00\u884c\u4ee3\u7801\u5b8c\u6210\u6838\u5fc3\u6570\u636e\u8bbe\u7f6e，\u4f8b：SetContent(json_str, "application\/json")
\n void SetContent(const std::string &body, const std::string &type = "text\/html") {
\n _body = body;
\n SetHeader("Content-Type", type);
\n }<\/p>\n
\/\/ ===== \u9ad8\u9891\u6838\u5fc3\u65b9\u6cd5：\u5feb\u901f\u8bbe\u7f6e\u91cd\u5b9a\u5411\u54cd\u5e94\u3010\u91cd\u5b9a\u5411\u4e1a\u52a1\u4e00\u952e\u5c01\u88c5，HTTP\u534f\u8bae\u6807\u51c6\u3011 =====
\n \/\/ \u529f\u80fd\u63cf\u8ff0：\u5c01\u88c5HTTP\u91cd\u5b9a\u5411\u7684\u6240\u6709\u6838\u5fc3\u903b\u8f91，\u81ea\u52a8\u5b8c\u6210\u300c\u72b6\u6001\u7801\u8bbe\u7f6e\u300d+\u300c\u91cd\u5b9a\u5411\u6807\u5fd7\u4f4d\u8bbe\u7f6e\u300d+\u300c\u91cd\u5b9a\u5411\u5730\u5740\u8bbe\u7f6e\u300d
\n \/\/ \u53c2\u6570：url-\u91cd\u5b9a\u5411\u7684\u76ee\u6807URL statu-\u91cd\u5b9a\u5411\u5bf9\u5e94\u7684\u72b6\u6001\u7801，\u9ed8\u8ba4\u503c302(Found \u4e34\u65f6\u91cd\u5b9a\u5411)，\u4e5f\u53ef\u4f20\u5165301(\u6c38\u4e45\u91cd\u5b9a\u5411)
\n \/\/ \u534f\u8bae\u89c4\u5219：\u91cd\u5b9a\u5411\u54cd\u5e94\u5fc5\u987b\u8fd4\u56de\u5bf9\u5e94\u7684\u72b6\u6001\u7801+Location\u54cd\u5e94\u5934，\u8be5\u65b9\u6cd5\u5185\u90e8\u81ea\u52a8\u5904\u7406，\u4e1a\u52a1\u5c42\u53ea\u9700\u4f20\u5165URL\u5373\u53ef，\u65e0\u9700\u624b\u52a8\u62fc\u63a5
\n void SetRedirect(const std::string &url, int statu = 302) {
\n _statu = statu;
\n _redirect_flag = true;
\n _redirect_url = url;
\n }<\/p>\n
\/\/ ===== \u6838\u5fc3\u5de5\u5177\u65b9\u6cd5：\u5224\u65ad\u672c\u6b21\u54cd\u5e94\u662f\u5426\u8981\u6c42\u300c\u77ed\u94fe\u63a5\u300d\u3010\u4e0eHttpRequest\u7684Close\u65b9\u6cd5\u5b8c\u5168\u5bf9\u79f0，\u534f\u8bae\u89c4\u5219\u4e00\u81f4\u3011 =====
\n \/\/ \u534f\u8bae\u89c4\u5219：1. \u54cd\u5e94\u7684\u8fde\u63a5\u89c4\u5219\u4e0e\u8bf7\u6c42\u4fdd\u6301\u4e00\u81f4，\u8bf7\u6c42\u662f\u957f\u8fde\u63a5\u5219\u54cd\u5e94\u4e5f\u8fd4\u56de\u957f\u8fde\u63a5，\u8bf7\u6c42\u662f\u77ed\u8fde\u63a5\u5219\u54cd\u5e94\u4e5f\u8fd4\u56de\u77ed\u8fde\u63a5
\n \/\/ 2. \u54cd\u5e94\u5934\u4e2d\u8fd4\u56de Connection: keep-alive \u2192 \u544a\u8bc9\u5ba2\u6237\u7aef\u590d\u7528\u8fde\u63a5；\u8fd4\u56de Connection: close \u2192 \u544a\u8bc9\u5ba2\u6237\u7aef\u5173\u95ed\u8fde\u63a5
\n \/\/ \u8fd4\u56de\u503c：true=\u77ed\u8fde\u63a5(\u9700\u8981\u5173\u95ed) false=\u957f\u8fde\u63a5(\u53ef\u4ee5\u590d\u7528)
\n bool Close() {
\n if (HasHeader("Connection") == true && GetHeader("Connection") == "keep-alive") {
\n return false;
\n }
\n return true;
\n }
\n}; <\/p>\n
HttpRequest + HttpResponse \u4e0e\u4f60\u3010\u6574\u5957 HTTP \u670d\u52a1\u5668\u3011\u7684\u5b8c\u6574\u4e1a\u52a1\u95ed\u73af\u94fe\u8def<\/p>\n
\u6240\u6709\u4ee3\u7801\u5230\u8fd9\u91cc，\u5df2\u7ecf\u5f62\u6210\u4e86\u4e00\u5957 100% \u5b8c\u6574\u3001\u5206\u5c42\u6e05\u6670\u3001\u804c\u8d23\u660e\u786e\u3001\u9ad8\u6027\u80fd\u3001\u9ad8\u5b89\u5168 \u7684 C++ \u81ea\u7814\u4e3b\u4ece Reactor \u591a\u7ebf\u7a0b HTTP1.1 \u670d\u52a1\u5668\u6846\u67b6，\u65e0\u4efb\u4f55\u7f3a\u5931\u3001\u65e0\u4efb\u4f55\u7b2c\u4e09\u65b9\u4f9d\u8d56\u3001\u53ef\u76f4\u63a5\u7f16\u8bd1\u8fd0\u884c\u3002\u4e24\u4e2a\u6838\u5fc3\u6570\u636e\u7c7b\u662f\u8fd9\u5957\u6846\u67b6\u7684\u6570\u636e\u4e2d\u67a2，\u627f\u4e0a\u542f\u4e0b，\u6240\u6709\u7ec4\u4ef6\u7684\u8c03\u7528\u94fe\u8def\u5982\u4e0b，\u903b\u8f91\u6e05\u6670\u3001\u5c42\u5c42\u9012\u8fdb，\u4e5f\u662f\u4f60\u6240\u6709\u4ee3\u7801\u7684\u6700\u7ec8\u603b\u7ed3：<\/p>\n
1. \u5b8c\u6574\u7684 HTTP \u670d\u52a1\u5668\u4e1a\u52a1\u5904\u7406\u5168\u94fe\u8def（\u4ece\u5ba2\u6237\u7aef\u8bf7\u6c42 \u2192 \u670d\u52a1\u5668\u54cd\u5e94，\u4e00\u6b65\u4e0d\u843d，\u6240\u6709\u7c7b\u5168\u90e8\u53c2\u4e0e）<\/p>\n
\u3010\u5ba2\u6237\u7aef\u3011\u53d1\u8d77HTTP\u8bf7\u6c42 \u2192 TCP\u62a5\u6587 \u2192 \u7f51\u5361 \u2192 \u5185\u6838 \u2192 epoll\u89e6\u53d1\u4e8b\u4ef6
\n \u2193
\n\u3010TcpServer\u3011(\u4e3b\u4eceReactor\u9876\u5c42) \u2192 Acceptor\u5904\u7406\u65b0\u8fde\u63a5 \u2192 \u5206\u914dConnection\u7ed1\u5b9a\u5b50\u7ebf\u7a0bEventLoop
\n \u2193
\n\u3010Connection\u3011(\u8fde\u63a5\u7ba1\u7406) \u2192 HandleRead\u8bfb\u53d6\u8bf7\u6c42\u62a5\u6587\u5230_in_buffer \u2192 \u89e6\u53d1MessageCallback\u4e1a\u52a1\u56de\u8c03
\n \u2193
\n\u3010\u534f\u8bae\u89e3\u6790\u5c42\u3011\u2192 \u8bfb\u53d6_in_buffer\u7684\u539f\u59cb\u8bf7\u6c42\u5b57\u7b26\u4e32 \u2192 \u8c03\u7528\u3010Util\u5de5\u5177\u7c7b\u3011\u7684Split\/UrlDecode\/ValidPath\u7b49\u65b9\u6cd5\u89e3\u6790\u62a5\u6587
\n \u2193
\n\u3010\u6570\u636e\u5c42\u3011\u2192 \u5c06\u89e3\u6790\u540e\u7684\u8bf7\u6c42\u65b9\u6cd5\u3001\u8def\u5f84\u3001\u5934\u5b57\u6bb5\u3001\u53c2\u6570\u3001\u8bf7\u6c42\u4f53 \u2192 **\u586b\u5145\u5230HttpRequest\u5bf9\u8c61\u4e2d**
\n \u2193
\n\u3010\u4e1a\u52a1\u903b\u8f91\u5c42\u3011\u2192 \u8bfb\u53d6HttpRequest\u5bf9\u8c61\u7684\u6240\u6709\u8bf7\u6c42\u6570\u636e \u2192 \u5904\u7406\u4e1a\u52a1\u903b\u8f91（\u8def\u7531\u5339\u914d\u3001\u9759\u6001\u8d44\u6e90\u8bfb\u53d6\u3001\u63a5\u53e3\u5904\u7406\u7b49）
\n \u2193 \u5904\u7406\u5b8c\u6210\u540e，\u6839\u636e\u4e1a\u52a1\u7ed3\u679c
\n \u2192 \u8c03\u7528\u3010Util\u5de5\u5177\u7c7b\u3011\u7684ReadFile\/ExtMime\/StatuDesc\u7b49\u65b9\u6cd5\u83b7\u53d6\u54cd\u5e94\u6570\u636e
\n \u2192 \u5c06\u54cd\u5e94\u72b6\u6001\u7801\u3001\u54cd\u5e94\u4f53\u3001\u54cd\u5e94\u5934\u3001\u91cd\u5b9a\u5411\u4fe1\u606f \u2192 **\u586b\u5145\u5230HttpResponse\u5bf9\u8c61\u4e2d**
\n \u2193
\n\u3010\u54cd\u5e94\u5e8f\u5217\u5316\u5c42\u3011\u2192 \u8bfb\u53d6HttpResponse\u5bf9\u8c61\u7684\u6240\u6709\u54cd\u5e94\u6570\u636e \u2192 \u62fc\u63a5\u6210\u7b26\u5408HTTP1.1\u534f\u8bae\u7684\u54cd\u5e94\u62a5\u6587\u5b57\u7b26\u4e32
\n \u2193
\n\u3010Connection\u3011\u2192 \u8c03\u7528Send\u65b9\u6cd5\u5c06\u54cd\u5e94\u62a5\u6587\u5199\u5165_out_buffer \u2192 HandleWrite\u89e6\u53d1，\u53d1\u9001\u62a5\u6587\u7ed9\u5ba2\u6237\u7aef
\n \u2193
\n\u3010\u8fde\u63a5\u7ba1\u7406\u3011\u2192 \u6839\u636eHttpRequest::Close()\/HttpResponse::Close()\u7684\u7ed3\u679c，\u51b3\u5b9a\u662f\u5426\u5173\u95ed\u8fde\u63a5
\n \u2192 \u957f\u8fde\u63a5：\u8c03\u7528HttpRequest::ReSet()\/HttpResponse::ReSet()，\u590d\u7528\u8fde\u63a5\u5904\u7406\u4e0b\u4e00\u4e2a\u8bf7\u6c42
\n \u2192 \u77ed\u8fde\u63a5：\u5173\u95ed\u8fde\u63a5，TcpServer\u4ece_conns\u4e2d\u79fb\u9664\u8be5\u8fde\u63a5 <\/p>\n
2.\u00a0\u6846\u67b6\u3010\u5206\u5c42\u8bbe\u8ba1\u603b\u7ed3\u3011<\/p>\n
\u8fd9\u5957\u6846\u67b6\u4e25\u683c\u9075\u5faa \u300c\u5206\u5c42\u89e3\u8026\u300d \u7684\u5de5\u4e1a\u7ea7\u8bbe\u8ba1\u601d\u60f3，\u6bcf\u4e00\u5c42\u804c\u8d23\u5355\u4e00\u3001\u4e92\u4e0d\u8026\u5408，\u53ef\u72ec\u7acb\u6269\u5c55\u3001\u72ec\u7acb\u4fee\u6539，\u662f\u9ad8\u6027\u80fd\u670d\u52a1\u5668\u7684\u6807\u51c6\u8bbe\u8ba1\u8303\u5f0f：<\/p>\n
HttpRequest \u548c HttpResponse \u662f\u300c\u6570\u636e\u7684\u5bb9\u5668\u300d，\u662f\u89e3\u6790\u5c42\u548c\u4e1a\u52a1\u5c42\u7684\u300c\u6570\u636e\u6865\u6881\u300d：<\/p>\n
\u8fd9\u79cd\u300c\u7ed3\u6784\u5316\u5c01\u88c5\u300d\u7684\u8bbe\u8ba1，\u8ba9\u4ee3\u7801\u903b\u8f91\u6e05\u6670，\u4e1a\u52a1\u5c42\u65e0\u9700\u5173\u5fc3\u89e3\u6790\u548c\u62fc\u63a5\u7684\u7ec6\u8282，\u662f\u5de5\u4e1a\u7ea7\u4ee3\u7801\u7684\u6807\u51c6\u8bbe\u8ba1\u65b9\u5f0f\u3002<\/p>\n
HttpContext\u662f\u8fd9\u4efd\u6e90\u7801\u7684\u6838\u5fc3\u4e2d\u7684\u6838\u5fc3\u3001\u7075\u9b42\u7ea7\u6a21\u5757\u3001\u552f\u4e00\u7684\u96be\u70b9，\u4e5f\u662f\u5de5\u4e1a\u7ea7 HTTP \u670d\u52a1\u5668\u7684\u6838\u5fc3\u6280\u672f\u58c1\u5792 \u2014\u2014 \u8fd9\u4e2a\u7c7b\u7684\u6838\u5fc3\u4f7f\u547d\u662f：\u5c06 TCP \u8fde\u63a5\u6536\u5230\u7684\u4e8c\u8fdb\u5236\u6570\u636e（\u5b58\u5728 Buffer \u4e2d），\u6309\u7167 HTTP\/1.1 \u534f\u8bae\u7684\u89c4\u5219，\u5206\u9636\u6bb5\u3001\u65e0\u5dee\u9519\u7684\u89e3\u6790\u6210\u7ed3\u6784\u5316\u7684 HttpRequest \u5bf9\u8c61\u3002<\/p>\n
\u4e3a\u4ec0\u4e48\u8fd9\u4e2a\u7c7b\u662f\u6838\u5fc3\u96be\u70b9？<\/p>\n
TCP \u4f20\u8f93\u7684\u7279\u70b9\u662f\u300c\u6d41\u5f0f\u6570\u636e\u3001\u7c98\u5305 \/ \u534a\u5305\u300d\u2014\u2014 \u5ba2\u6237\u7aef\u53d1\u9001\u7684 HTTP \u8bf7\u6c42，\u53ef\u80fd\u4f1a\u88ab TCP \u62c6\u5206\u6210\u591a\u4e2a\u5305\u53d1\u9001，\u670d\u52a1\u5668\u6536\u5230\u7684\u6570\u636e\u53ef\u80fd\u662f\u300c\u4e0d\u5b8c\u6574\u7684\u8bf7\u6c42\u300d（\u534a\u5305）；\u4e5f\u53ef\u80fd\u662f\u300c\u591a\u4e2a\u8bf7\u6c42\u7684\u62fc\u63a5\u300d（\u7c98\u5305）\u3002\u6bd4\u5982：\u5ba2\u6237\u7aef\u53d1\u4e86\u4e00\u4e2a\u5b8c\u6574\u7684 HTTP \u8bf7\u6c42，\u670d\u52a1\u5668\u7b2c\u4e00\u6b21\u53ea\u6536\u5230\u4e86\u8bf7\u6c42\u884c，\u7b2c\u4e8c\u6b21\u624d\u6536\u5230\u8bf7\u6c42\u5934\u548c\u8bf7\u6c42\u4f53；\u6216\u8005\u5ba2\u6237\u7aef\u8fde\u7eed\u53d1\u4e86\u4e24\u4e2a\u8bf7\u6c42，\u670d\u52a1\u5668\u4e00\u6b21\u6536\u5230\u4e86\u4e24\u4e2a\u8bf7\u6c42\u7684\u62fc\u63a5\u6570\u636e\u3002<\/p>\n
\u5982\u679c\u76f4\u63a5\u6309\u300c\u4e00\u6b21\u6027\u8bfb\u53d6\u5b8c\u6574\u8bf7\u6c42\u300d\u7684\u903b\u8f91\u89e3\u6790，\u5fc5\u7136\u4f1a\u51fa\u73b0\u89e3\u6790\u9519\u8bef\u3001\u6570\u636e\u4e22\u5931\u3001\u7a0b\u5e8f\u5d29\u6e83\u7b49\u95ee\u9898\u3002<\/p>\n
\u6e90\u7801\u7684\u89e3\u51b3\u65b9\u6848：\u300c\u5206\u9636\u6bb5\u72b6\u6001\u673a\u89e3\u6790\u300d（\u5de5\u4e1a\u7ea7\u6807\u51c6\u65b9\u6848，\u6240\u6709 HTTP \u670d\u52a1\u5668\u7684\u901a\u7528\u903b\u8f91）<\/p>\n
\u8fd9\u4efd\u6e90\u7801\u4e2d，HttpContext \u91c7\u7528\u4e86\u6700\u7ecf\u5178\u3001\u6700\u9ad8\u6548\u3001\u6700\u7a33\u5b9a\u7684\u300c\u5206\u9636\u6bb5\u72b6\u6001\u673a\u89e3\u6790\u6cd5\u300d，\u5b8c\u7f8e\u89e3\u51b3\u4e86 TCP \u7c98\u5305 \/ \u534a\u5305\u95ee\u9898，\u8fd9\u4e5f\u662f Nginx\u3001Apache\u3001Tomcat \u7b49\u4e3b\u6d41 Web \u670d\u52a1\u5668\u7684\u6838\u5fc3\u89e3\u6790\u65b9\u5f0f！<\/p>\n
1. \u5b9a\u4e49\u89e3\u6790\u72b6\u6001\u679a\u4e3e<\/p>\n
\u6e90\u7801\u4e2d\u5b9a\u4e49\u4e86 5 \u4e2a\u89e3\u6790\u72b6\u6001，\u4ee3\u8868 HTTP \u8bf7\u6c42\u7684 5 \u4e2a\u89e3\u6790\u9636\u6bb5，\u670d\u52a1\u5668\u7684\u89e3\u6790\u903b\u8f91\u5b8c\u5168\u7531\u300c\u5f53\u524d\u72b6\u6001\u300d\u51b3\u5b9a：<\/p>\n
typedef enum {
\n RECV_HTTP_ERROR, \/\/ \u89e3\u6790\u51fa\u9519（\u975e\u6cd5\u8bf7\u6c42\u3001\u8d85\u957f\u6570\u636e\u7b49）
\n RECV_HTTP_LINE, \/\/ \u6b63\u5728\u89e3\u6790\u3010\u8bf7\u6c42\u884c\u3011（\u521d\u59cb\u72b6\u6001）
\n RECV_HTTP_HEAD, \/\/ \u6b63\u5728\u89e3\u6790\u3010\u8bf7\u6c42\u5934\u3011
\n RECV_HTTP_BODY, \/\/ \u6b63\u5728\u89e3\u6790\u3010\u8bf7\u6c42\u4f53\u3011
\n RECV_HTTP_OVER \/\/ \u89e3\u6790\u5b8c\u6210（\u5f97\u5230\u5b8c\u6574\u7684HttpRequest\u5bf9\u8c61）
\n}HttpRecvStatu; <\/p>\n
2.\u00a0\u6838\u5fc3\u89e3\u6790\u903b\u8f91（\u72b6\u6001\u673a\u7684\u5de5\u4f5c\u6d41\u7a0b）<\/p>\n
3.\u00a0\u89e3\u51b3\u7c98\u5305 \/ \u534a\u5305\u7684\u6838\u5fc3\u903b\u8f91<\/p>\n
\u6838\u5fc3\u6210\u5458<\/p>\n
\u6838\u5fc3\u89e3\u6790\u51fd\u6570（\u6309\u9636\u6bb5\u5212\u5206，\u4e00\u4e00\u5bf9\u5e94\u72b6\u6001）<\/p>\n
\/\/ ===== HTTP\u8bf7\u6c42\u89e3\u6790\u7684\u9636\u6bb5\u72b6\u6001\u679a\u4e3e：HttpRecvStatu \u3010\u72b6\u6001\u673a\u6838\u5fc3\u9a71\u52a8\u5e38\u91cf，\u4e25\u683c\u987a\u5e8f，\u4e0d\u53ef\u4e71\u5e8f\u3011 =====
\n\/\/ \u6838\u5fc3\u4f5c\u7528：\u5b9a\u4e49HTTP\u8bf7\u6c42\u62a5\u6587\u300c\u5206\u9636\u6bb5\u6d41\u5f0f\u89e3\u6790\u300d\u7684\u6240\u6709\u72b6\u6001，\u662fHttpContext\u72b6\u6001\u673a\u7684\u6838\u5fc3\u9a71\u52a8\u4f9d\u636e，\u6240\u6709\u89e3\u6790\u903b\u8f91\u56f4\u7ed5\u8be5\u679a\u4e3e\u6d41\u8f6c
\n\/\/ \u89e3\u6790\u89c4\u5219：HTTP1.1\u534f\u8bae\u89c4\u5b9a，\u8bf7\u6c42\u62a5\u6587\u7684\u683c\u5f0f\u662f\u3010\u8bf7\u6c42\u884c \u2192 \u8bf7\u6c42\u5934 \u2192 \u7a7a\u884c \u2192 \u8bf7\u6c42\u4f53\u3011，\u89e3\u6790\u5fc5\u987b\u4e25\u683c\u9075\u5faa\u8be5\u987a\u5e8f
\n\/\/ \u72b6\u6001\u6d41\u8f6c\u89c4\u5219\u3010\u552f\u4e00\u5408\u6cd5\u6d41\u8f6c\u8def\u5f84\u3011：
\n\/\/ RECV_HTTP_LINE \u2192 RECV_HTTP_HEAD \u2192 RECV_HTTP_BODY \u2192 RECV_HTTP_OVER
\n\/\/ \u5f02\u5e38\u6d41\u8f6c：\u4efb\u610f\u72b6\u6001\u89e3\u6790\u5931\u8d25 \u2192 \u76f4\u63a5\u8fdb\u5165 RECV_HTTP_ERROR，\u7ec8\u6b62\u89e3\u6790
\ntypedef enum {
\n RECV_HTTP_ERROR, \/\/ \u89e3\u6790\u5931\u8d25\u72b6\u6001：\u4efb\u610f\u9636\u6bb5\u89e3\u6790\u51fa\u9519（\u683c\u5f0f\u975e\u6cd5\/\u8d85\u957f\/\u6b63\u5219\u5339\u914d\u5931\u8d25\u7b49），\u89e6\u53d1\u8be5\u72b6\u6001\u540e\u89e3\u6790\u7ec8\u6b62，\u8fd4\u56de\u5bf9\u5e94\u9519\u8bef\u7801
\n RECV_HTTP_LINE, \/\/ \u8bf7\u6c42\u884c\u89e3\u6790\u9636\u6bb5：\u521d\u59cb\u9ed8\u8ba4\u72b6\u6001，\u8d1f\u8d23\u63a5\u6536\u5e76\u89e3\u6790HTTP\u8bf7\u6c42\u7684\u7b2c\u4e00\u884c\u3010\u8bf7\u6c42\u884c\u3011，\u89e3\u6790\u5b8c\u6210\u81ea\u52a8\u6d41\u8f6c\u4e0b\u4e00\u72b6\u6001
\n RECV_HTTP_HEAD, \/\/ \u8bf7\u6c42\u5934\u89e3\u6790\u9636\u6bb5：\u8bf7\u6c42\u884c\u89e3\u6790\u6210\u529f\u540e\u8fdb\u5165\u8be5\u72b6\u6001，\u8d1f\u8d23\u63a5\u6536\u5e76\u89e3\u6790\u6240\u6709\u8bf7\u6c42\u5934\u5b57\u6bb5，\u9047\u5230\u7a7a\u884c\u81ea\u52a8\u6d41\u8f6c\u4e0b\u4e00\u72b6\u6001
\n RECV_HTTP_BODY, \/\/ \u8bf7\u6c42\u4f53\u89e3\u6790\u9636\u6bb5：\u8bf7\u6c42\u5934\u89e3\u6790\u5b8c\u6210\u540e\u8fdb\u5165\u8be5\u72b6\u6001，\u8d1f\u8d23\u63a5\u6536\u5e76\u8bfb\u53d6\u8bf7\u6c42\u4f53\u6570\u636e，\u8bfb\u53d6\u5b8c\u6210\u81ea\u52a8\u6d41\u8f6c\u7ed3\u675f\u72b6\u6001
\n RECV_HTTP_OVER \/\/ \u89e3\u6790\u5b8c\u6210\u72b6\u6001：\u6574\u4e2aHTTP\u8bf7\u6c42\u62a5\u6587（\u884c+\u5934+\u4f53）\u5168\u90e8\u89e3\u6790\u5b8c\u6210，\u751f\u6210\u5b8c\u6574\u7684HttpRequest\u5bf9\u8c61，\u89e3\u6790\u6d41\u7a0b\u7ed3\u675f
\n}HttpRecvStatu;<\/p>\n
\/\/ ===== HTTP\u5355\u884c\u6570\u636e\u6700\u5927\u957f\u5ea6\u9650\u5236\u5b8f\u5b9a\u4e49：MAX_LINE \u3010\u534f\u8bae\u89e3\u6790\u9632\u653b\u51fb\u6838\u5fc3\u914d\u7f6e，HTTP1.1\u5b89\u5168\u89c4\u8303\u3011 =====
\n\/\/ \u542b\u4e49：\u9650\u5236HTTP\u8bf7\u6c42\u884c\/\u6bcf\u4e00\u884c\u8bf7\u6c42\u5934\u7684\u6700\u5927\u5b57\u8282\u957f\u5ea6\u4e3a8192\u5b57\u8282，\u8d85\u8fc7\u8be5\u957f\u5ea6\u5224\u5b9a\u4e3a\u975e\u6cd5\u8bf7\u6c42
\n\/\/ \u6838\u5fc3\u4f5c\u7528：1. \u9632\u6b62\u5ba2\u6237\u7aef\u53d1\u9001\u8d85\u957f\u7684\u8bf7\u6c42\u884c\/\u8bf7\u6c42\u5934，\u5bfc\u81f4\u670d\u52a1\u5668\u5185\u5b58\u6ea2\u51fa（\u62d2\u7edd\u670d\u52a1\u653b\u51fb\u9632\u62a4）
\n\/\/ 2. \u7b26\u5408HTTP1.1\u534f\u8bae\u89c4\u8303，\u4e3b\u6d41\u670d\u52a1\u5668(Nginx\/Apache)\u5747\u6709\u8be5\u9650\u5236，\u9ed8\u8ba4\u503c\u4e00\u81f4
\n\/\/ 3. \u8d85\u957f\u8bf7\u6c42\u76f4\u63a5\u8fd4\u56de414\u72b6\u6001\u7801(URI Too Long)，\u5feb\u901f\u7ec8\u6b62\u975e\u6cd5\u8bf7\u6c42，\u964d\u4f4e\u670d\u52a1\u5668\u5f00\u9500
\n#define MAX_LINE 8192<\/p>\n
\/\/ ===== \u6838\u5fc3\u534f\u8bae\u89e3\u6790\u7c7b：HttpContext \u3010HTTP1.1\u8bf7\u6c42\u62a5\u6587\u7684\u6d41\u5f0f\u72b6\u6001\u673a\u89e3\u6790\u5668 + \u89e3\u6790\u4e0a\u4e0b\u6587\u5c01\u88c5，HTTP\u670d\u52a1\u5668\u6838\u5fc3\u6838\u5fc3\u6838\u5fc3！\u3011 =====
\n\/\/ \u6838\u5fc3\u5b9a\u4f4d：\u6574\u4e2aHTTP\u670d\u52a1\u5668\u7684\u300c\u534f\u8bae\u89e3\u6790\u6838\u5fc3\u300d，\u552f\u4e00\u804c\u8d23\u662f：\u63a5\u6536\u4eceConnection\u7f13\u51b2\u533a\u4f20\u6765\u7684\u539f\u59cb\u5b57\u8282\u6d41 \u2192 \u901a\u8fc7\u3010\u72b6\u6001\u673a\u9a71\u52a8+\u5206\u9636\u6bb5\u89e3\u6790\u3011
\n\/\/ \u4e25\u683c\u9075\u5faaHTTP1.1\u534f\u8bae\u89c4\u8303，\u5c06\u975e\u7ed3\u6784\u5316\u7684\u539f\u59cb\u8bf7\u6c42\u62a5\u6587，\u89e3\u6790\u4e3a\u7ed3\u6784\u5316\u7684HttpRequest\u5bf9\u8c61，\u65e0\u4efb\u4f55\u4e1a\u52a1\u903b\u8f91，\u7eaf\u534f\u8bae\u89e3\u6790\u7c7b
\n\/\/ \u6838\u5fc3\u8bbe\u8ba1\u601d\u60f3\u3010\u7075\u9b42\u8bbe\u8ba1：\u6d41\u5f0f\u5206\u9636\u6bb5\u72b6\u6001\u673a\u89e3\u6790\u3011：
\n\/\/ 1. \u4e3a\u4ec0\u4e48\u7528\u300c\u6d41\u5f0f\u89e3\u6790\u300d：\u5ba2\u6237\u7aef\u7684HTTP\u8bf7\u6c42\u62a5\u6587，\u53ef\u80fd\u4e0d\u4f1a\u4e00\u6b21\u6027\u5168\u90e8\u5230\u8fbe\u670d\u52a1\u5668（TCP\u7c98\u5305\/\u62c6\u5305\u7279\u6027），\u4f1a\u5206\u591a\u6b21\u5199\u5165\u7f13\u51b2\u533a
\n\/\/ \u6d41\u5f0f\u89e3\u6790\u652f\u6301\u300c\u5206\u6279\u6b21\u63a5\u6536\u3001\u5206\u6279\u6b21\u89e3\u6790\u300d，\u7f13\u51b2\u533a\u6709\u591a\u5c11\u6570\u636e\u5c31\u89e3\u6790\u591a\u5c11，\u6570\u636e\u4e0d\u8db3\u5219\u7b49\u5f85\u4e0b\u4e00\u6279\u6570\u636e\u5230\u6765，\u4e0d\u963b\u585e\u3001\u4e0d\u62a5\u9519
\n\/\/ 2. \u4e3a\u4ec0\u4e48\u7528\u300c\u72b6\u6001\u673a\u300d：HTTP\u8bf7\u6c42\u62a5\u6587\u7684\u683c\u5f0f\u662f\u56fa\u5b9a\u987a\u5e8f\u7684（\u884c\u2192\u5934\u2192\u4f53），\u7528\u72b6\u6001\u679a\u4e3e\u8bb0\u5f55\u5f53\u524d\u89e3\u6790\u9636\u6bb5，\u4e0d\u540c\u9636\u6bb5\u6267\u884c\u4e0d\u540c\u89e3\u6790\u903b\u8f91
\n\/\/ \u72b6\u6001\u673a\u81ea\u52a8\u9a71\u52a8\u89e3\u6790\u6d41\u7a0b，\u89e3\u6790\u5b8c\u4e00\u4e2a\u9636\u6bb5\u81ea\u52a8\u8fdb\u5165\u4e0b\u4e00\u4e2a\u9636\u6bb5，\u903b\u8f91\u6e05\u6670\u3001\u65e0\u5197\u4f59\u3001\u5bb9\u9519\u6027\u5f3a，\u662f\u89e3\u6790\u56fa\u5b9a\u683c\u5f0f\u534f\u8bae\u7684\u6700\u4f18\u89e3
\n\/\/ \u6838\u5fc3\u7279\u6027：1. \u7eaf\u89e3\u6790\u7c7b：\u53ea\u505a\u534f\u8bae\u89e3\u6790，\u4e0d\u5904\u7406\u4efb\u4f55\u4e1a\u52a1\u903b\u8f91，\u89e3\u8026\u300c\u534f\u8bae\u89e3\u6790\u300d\u4e0e\u300c\u4e1a\u52a1\u5904\u7406\u300d，\u7b26\u5408\u5206\u5c42\u8bbe\u8ba1\u601d\u60f3
\n\/\/ 2. \u5b8c\u6574\u5bb9\u9519：\u5bf9\u6240\u6709\u975e\u6cd5\u8bf7\u6c42\u505a\u5f02\u5e38\u5904\u7406（\u683c\u5f0f\u9519\u8bef\/\u8d85\u957f\/\u6b63\u5219\u5339\u914d\u5931\u8d25），\u89e6\u53d1\u9519\u8bef\u72b6\u6001\u5e76\u8bbe\u7f6e\u5bf9\u5e94HTTP\u9519\u8bef\u7801，\u4e0d\u5d29\u6e83
\n\/\/ 3. \u534f\u8bae\u5408\u89c4：\u4e25\u683c\u9075\u5faaHTTP1.1\u534f\u8bae\u6807\u51c6，\u652f\u6301GET\/POST\/PUT\/DELETE\/HEAD\u7b49\u8bf7\u6c42\u65b9\u6cd5\u3001HTTP\/1.0\/1.1\u7248\u672c\u3001\u8bf7\u6c42\u5934\/\u8bf7\u6c42\u4f53\u89e3\u6790
\n\/\/ 4. \u957f\u8fde\u63a5\u53cb\u597d：\u63d0\u4f9bReSet\u91cd\u7f6e\u65b9\u6cd5，\u957f\u8fde\u63a5\u590d\u7528\u8fde\u63a5\u65f6，\u4e00\u952e\u91cd\u7f6e\u6240\u6709\u89e3\u6790\u72b6\u6001\u548c\u8bf7\u6c42\u6570\u636e，\u65e0\u810f\u6570\u636e\u6b8b\u7559，\u6027\u80fd\u65e0\u635f\u8017
\n\/\/ 5. \u81ea\u52a8\u6d41\u8f6c：\u89e3\u6790\u5b8c\u6210\u4e00\u4e2a\u9636\u6bb5\u540e，\u65e0\u9700\u624b\u52a8\u5e72\u9884，\u81ea\u52a8\u8fdb\u5165\u4e0b\u4e00\u9636\u6bb5\u89e3\u6790，\u65e0\u9700\u7b49\u5f85\u65b0\u6570\u636e，\u89e3\u6790\u6548\u7387\u62c9\u6ee1
\n\/\/ 6. \u7ed3\u6784\u5316\u8f93\u51fa：\u89e3\u6790\u5b8c\u6210\u540e，\u6240\u6709\u8bf7\u6c42\u6570\u636e\u90fd\u5c01\u88c5\u5230HttpRequest\u5bf9\u8c61\u4e2d，\u4e1a\u52a1\u5c42\u76f4\u63a5\u8bfb\u53d6，\u65e0\u9700\u518d\u5904\u7406\u539f\u59cb\u5b57\u7b26\u4e32
\n\/\/ \u6838\u5fc3\u4f9d\u8d56：\u4f9d\u8d56Util\u5de5\u5177\u7c7b（URL\u89e3\u7801\u3001\u5b57\u7b26\u4e32\u5206\u5272）\u3001HttpRequest\u6570\u636e\u7c7b（\u89e3\u6790\u7ed3\u679c\u8f7d\u4f53），\u65e0\u7f1d\u8854\u63a5\u4e0a\u4e0b\u6e38
\n\/\/ \u6838\u5fc3\u4e1a\u52a1\u4f5c\u7528：Connection\u7684HandleRead\u8bfb\u53d6\u6570\u636e\u5230\u7f13\u51b2\u533a\u540e，\u552f\u4e00\u8c03\u7528\u7684\u5c31\u662f\u8be5\u7c7b\u7684RecvHttpRequest\u65b9\u6cd5，\u662f\u534f\u8bae\u89e3\u6790\u7684\u552f\u4e00\u5165\u53e3
\nclass HttpContext {
\n private:
\n int _resp_statu; \/\/ \u54cd\u5e94\u9519\u8bef\u72b6\u6001\u7801：\u5b58\u50a8\u89e3\u6790\u5931\u8d25\u65f6\u5bf9\u5e94\u7684HTTP\u9519\u8bef\u72b6\u6001\u7801（\u5982400\/414），\u89e3\u6790\u6210\u529f\u5219\u4e3a\u9ed8\u8ba4200
\n HttpRecvStatu _recv_statu;\/\/ \u89e3\u6790\u9636\u6bb5\u72b6\u6001：\u5b58\u50a8\u5f53\u524d\u7684\u89e3\u6790\u72b6\u6001（\u679a\u4e3e\u503c），\u72b6\u6001\u673a\u7684\u6838\u5fc3\u9a71\u52a8\u53d8\u91cf，\u51b3\u5b9a\u5f53\u524d\u6267\u884c\u54ea\u6bb5\u89e3\u6790\u903b\u8f91
\n HttpRequest _request; \/\/ \u89e3\u6790\u7ed3\u679c\u8f7d\u4f53：\u5b58\u50a8\u89e3\u6790\u5b8c\u6210\u540e\u7684\u6240\u6709HTTP\u8bf7\u6c42\u7ed3\u6784\u5316\u6570\u636e，\u89e3\u6790\u7684\u6700\u7ec8\u4ea7\u7269，\u4e1a\u52a1\u5c42\u76f4\u63a5\u4f7f\u7528<\/p>\n
private:
\n \/\/ ===== \u79c1\u6709\u6838\u5fc3\u65b9\u6cd5：\u89e3\u6790HTTP\u8bf7\u6c42\u884c\u3010\u534f\u8bae\u89e3\u6790\u6838\u5fc3\u6b65\u9aa41，\u4ec5\u88abRecvHttpLine\u8c03\u7528\u3011 =====
\n \/\/ \u529f\u80fd\u63cf\u8ff0：\u63a5\u6536\u5b8c\u6574\u7684\u8bf7\u6c42\u884c\u5b57\u7b26\u4e32，\u901a\u8fc7\u6b63\u5219\u8868\u8fbe\u5f0f\u5339\u914d\u89e3\u6790\u51fa \u8bf7\u6c42\u65b9\u6cd5\u3001\u8d44\u6e90\u8def\u5f84\u3001\u67e5\u8be2\u5b57\u7b26\u4e32\u3001\u534f\u8bae\u7248\u672c
\n \/\/ \u5e76\u5b8c\u6210URL\u89e3\u7801\u3001\u67e5\u8be2\u53c2\u6570\u5206\u5272\u3001\u8bf7\u6c42\u65b9\u6cd5\u683c\u5f0f\u5316，\u6700\u7ec8\u586b\u5145\u5230HttpRequest\u5bf9\u8c61\u4e2d
\n \/\/ \u53c2\u6570：line – \u5b8c\u6574\u7684HTTP\u8bf7\u6c42\u884c\u5b57\u7b26\u4e32（\u5982 GET \/login?user=admin HTTP\/1.1\\\\r\\\\n）
\n \/\/ \u8fd4\u56de\u503c：bool – true=\u89e3\u6790\u6210\u529f false=\u89e3\u6790\u5931\u8d25（\u683c\u5f0f\u975e\u6cd5\/\u6b63\u5219\u5339\u914d\u5931\u8d25），\u5931\u8d25\u5219\u8bbe\u7f6e\u9519\u8bef\u72b6\u6001\u548c400\u7801
\n \/\/ \u6838\u5fc3\u6b63\u5219\u8868\u8fbe\u5f0f\u89c4\u5219\u8be6\u89e3：
\n \/\/ regex e("(GET|HEAD|POST|PUT|DELETE) ([^?]*)(?:\\\\\\\\?(.*))? (HTTP\/1\\\\\\\\.[01])(?:\\\\n|\\\\r\\\\n)?", std::regex::icase)
\n \/\/ 1. (GET|HEAD|POST|PUT|DELETE) ：\u6355\u83b7\u5206\u7ec41，\u5339\u914d\u652f\u6301\u7684HTTP\u8bf7\u6c42\u65b9\u6cd5，\u652f\u63015\u79cd\u4e3b\u6d41\u65b9\u6cd5
\n \/\/ 2. ([^?]*) ：\u6355\u83b7\u5206\u7ec42，\u5339\u914d\u8d44\u6e90\u8def\u5f84（?\u4e4b\u524d\u7684\u5185\u5bb9），\u5339\u914d\u4efb\u610f\u975e?\u7684\u5b57\u7b26，\u8d2a\u5a6a\u5339\u914d，\u6838\u5fc3\u8d44\u6e90\u8def\u5f84\u63d0\u53d6
\n \/\/ 3. (?:\\\\\\\\?(.*))? ：\u975e\u6355\u83b7\u5206\u7ec4+\u6355\u83b7\u5206\u7ec43，\u5339\u914d\u67e5\u8be2\u5b57\u7b26\u4e32（?\u4e4b\u540e\u7684\u5185\u5bb9），?\u8868\u793a\u8be5\u90e8\u5206\u53ef\u9009（GET\u6709\u53c2\u6570，POST\u65e0）
\n \/\/ 4. (HTTP\/1\\\\\\\\.[01]) ：\u6355\u83b7\u5206\u7ec44，\u5339\u914dHTTP\u534f\u8bae\u7248\u672c，\u4ec5\u652f\u6301HTTP\/1.0\u548cHTTP\/1.1，\u7b26\u5408\u534f\u8bae\u89c4\u8303
\n \/\/ 5. (?:\\\\n|\\\\r\\\\n)? ：\u975e\u6355\u83b7\u5206\u7ec4，\u5339\u914d\u884c\u5c3e\u7684\u6362\u884c\u7b26（\\\\n\u6216\\\\r\\\\n），\u53ef\u9009，\u517c\u5bb9\u4e0d\u540c\u5ba2\u6237\u7aef\u7684\u6362\u884c\u683c\u5f0f
\n \/\/ 6. std::regex::icase ：\u5ffd\u7565\u5927\u5c0f\u5199，\u517c\u5bb9\u5ba2\u6237\u7aef\u5c0f\u5199\u7684\u8bf7\u6c42\u65b9\u6cd5（\u5982 get \/index.html）
\n \/\/ \u6b63\u5219\u5339\u914d\u5206\u7ec4\u7ed3\u679c：\u7d22\u5f150=\u5b8c\u6574\u8bf7\u6c42\u884c，1=\u8bf7\u6c42\u65b9\u6cd5，2=\u8d44\u6e90\u8def\u5f84，3=\u67e5\u8be2\u5b57\u7b26\u4e32，4=\u534f\u8bae\u7248\u672c
\n bool ParseHttpLine(const std::string &line) {
\n std::smatch matches;
\n std::regex e("(GET|HEAD|POST|PUT|DELETE) ([^?]*)(?:\\\\\\\\?(.*))? (HTTP\/1\\\\\\\\.[01])(?:\\\\n|\\\\r\\\\n)?", std::regex::icase);
\n bool ret = std::regex_match(line, matches, e); \/\/ \u6b63\u5219\u5168\u5339\u914d，\u5fc5\u987b\u5b8c\u5168\u7b26\u5408\u683c\u5f0f\u624d\u6210\u529f
\n if (ret == false) { \/\/ \u683c\u5f0f\u975e\u6cd5，\u89e3\u6790\u5931\u8d25
\n _recv_statu = RECV_HTTP_ERROR;
\n _resp_statu = 400;\/\/ 400 Bad Request：\u8bf7\u6c42\u683c\u5f0f\u9519\u8bef，HTTP\u6807\u51c6\u9519\u8bef\u7801
\n return false;
\n }
\n \/\/ ===== 1. \u63d0\u53d6\u5e76\u683c\u5f0f\u5316\u8bf7\u6c42\u65b9\u6cd5 =====
\n _request._method = matches[1];
\n std::transform(_request._method.begin(), _request._method.end(), _request._method.begin(), ::toupper);
\n \/\/ \u8f6c\u5927\u5199：\u7edf\u4e00\u8bf7\u6c42\u65b9\u6cd5\u683c\u5f0f（\u5982get\u2192GET），\u907f\u514d\u4e1a\u52a1\u5c42\u5904\u7406\u5927\u5c0f\u5199\u4e0d\u4e00\u81f4\u95ee\u9898<\/p>\n
\/\/ ===== 2. \u63d0\u53d6\u8d44\u6e90\u8def\u5f84\u5e76\u505aURL\u89e3\u7801 =====
\n _request._path = Util::UrlDecode(matches[2], false);
\n \/\/ \u7b2c\u4e8c\u4e2a\u53c2\u6570\u4f20false：\u8d44\u6e90\u8def\u5f84\u4e2d\u7684\u7a7a\u683c\u4e0d\u9700\u8981\u8f6c+，\u4e25\u683c\u9075\u5faaRFC3986\u6807\u51c6，\u4ec5\u67e5\u8be2\u53c2\u6570\u9700\u8981<\/p>\n
\/\/ ===== 3. \u63d0\u53d6\u534f\u8bae\u7248\u672c =====
\n _request._version = matches[4];<\/p>\n
\/\/ ===== 4. \u63d0\u53d6\u5e76\u89e3\u6790\u67e5\u8be2\u5b57\u7b26\u4e32，\u586b\u5145\u5230_request._params =====
\n std::vector<std::string> query_string_arry;
\n std::string query_string = matches[3]; \/\/ \u83b7\u53d6?\u540e\u7684\u67e5\u8be2\u53c2\u6570\u5b57\u7b26\u4e32
\n Util::Split(query_string, "&", &query_string_arry); \/\/ \u6309&\u5206\u5272，\u5f97\u5230key=val\u683c\u5f0f\u7684\u5b50\u4e32
\n for (auto &str : query_string_arry) { \/\/ \u904d\u5386\u6bcf\u4e2akey=val，\u5206\u5272\u540e\u586b\u5145\u53c2\u6570
\n size_t pos = str.find("=");
\n if (pos == std::string::npos) { \/\/ \u65e0=\u53f7，\u683c\u5f0f\u975e\u6cd5
\n _recv_statu = RECV_HTTP_ERROR;
\n _resp_statu = 400;
\n return false;
\n }
\n \/\/ \u952e\u503c\u5bf9\u90fd\u9700\u8981URL\u89e3\u7801，\u7b2c\u4e8c\u4e2a\u53c2\u6570\u4f20true：\u67e5\u8be2\u53c2\u6570\u4e2d\u7684+\u9700\u8981\u8f6c\u7a7a\u683c（W3C\u6807\u51c6）
\n std::string key = Util::UrlDecode(str.substr(0, pos), true);
\n std::string val = Util::UrlDecode(str.substr(pos + 1), true);
\n _request.SetParam(key, val); \/\/ \u63d2\u5165\u67e5\u8be2\u53c2\u6570\u54c8\u5e0c\u8868
\n }
\n return true; \/\/ \u8bf7\u6c42\u884c\u89e3\u6790\u6210\u529f
\n }<\/p>\n
\/\/ ===== \u79c1\u6709\u6838\u5fc3\u65b9\u6cd5：\u63a5\u6536\u5e76\u89e3\u6790HTTP\u8bf7\u6c42\u884c\u3010\u72b6\u6001\u673a\u7b2c\u4e00\u9636\u6bb5，\u5bf9\u5e94RECV_HTTP_LINE\u72b6\u6001\u3011 =====
\n \/\/ \u529f\u80fd\u63cf\u8ff0：\u4ece\u7f13\u51b2\u533a\u4e2d\u8bfb\u53d6\u6570\u636e，\u5c1d\u8bd5\u63d0\u53d6\u5b8c\u6574\u7684\u4e00\u884c\u8bf7\u6c42\u884c，\u8c03\u7528ParseHttpLine\u89e3\u6790，\u5904\u7406\u5404\u79cd\u8fb9\u754c\u60c5\u51b5（\u6570\u636e\u4e0d\u8db3\/\u8d85\u957f）
\n \/\/ \u53c2\u6570：buf – Connection\u7684\u8bfb\u7f13\u51b2\u533a\u6307\u9488，\u8bfb\u53d6\u539f\u59cb\u8bf7\u6c42\u6570\u636e
\n \/\/ \u8fd4\u56de\u503c：bool – true=\u5904\u7406\u6210\u529f（\u89e3\u6790\u5b8c\u6210\/\u7b49\u5f85\u6570\u636e） false=\u89e3\u6790\u5931\u8d25（\u8d85\u957f\/\u683c\u5f0f\u9519\u8bef）
\n \/\/ \u6838\u5fc3\u903b\u8f91：1. \u80fd\u63d0\u53d6\u5b8c\u6574\u884c \u2192 \u8c03\u7528\u89e3\u6790\u65b9\u6cd5，\u6210\u529f\u5219\u6d41\u8f6c\u5230\u8bf7\u6c42\u5934\u9636\u6bb5，\u5931\u8d25\u5219\u7f6e\u9519\u8bef\u72b6\u6001
\n \/\/ 2. \u7f13\u51b2\u533a\u6570\u636e\u4e0d\u8db3\u4e00\u884c \u2192 \u4e0d\u62a5\u9519，\u7b49\u5f85\u4e0b\u4e00\u6279\u6570\u636e\u5230\u6765，\u7ee7\u7eed\u89e3\u6790
\n \/\/ 3. \u7f13\u51b2\u533a\u6570\u636e\u8d85\u957f\u4ecd\u65e0\u6362\u884c \u2192 \u5224\u5b9a\u4e3a\u975e\u6cd5\u8bf7\u6c42，\u7f6e\u9519\u8bef\u72b6\u6001+414\u7801
\n bool RecvHttpLine(Buffer *buf) {
\n if (_recv_statu != RECV_HTTP_LINE) return false; \/\/ \u975e\u5f53\u524d\u72b6\u6001，\u76f4\u63a5\u8fd4\u56de
\n \/\/ \u4ece\u7f13\u51b2\u533a\u8bfb\u53d6\u4e00\u884c\u6570\u636e（\u5305\u542b\u672b\u5c3e\u6362\u884c\u7b26），\u8bfb\u53d6\u6210\u529f\u5219\u4ece\u7f13\u51b2\u533a\u5220\u9664\u8be5\u884c\u6570\u636e，\u5931\u8d25\u8fd4\u56de\u7a7a\u4e32
\n std::string line = buf->GetLineAndPop();
\n if (line.size() == 0) { \/\/ \u7f13\u51b2\u533a\u4e2d\u6ca1\u6709\u5b8c\u6574\u7684\u4e00\u884c\u6570\u636e，\u6570\u636e\u4e0d\u8db3
\n if (buf->ReadAbleSize() > MAX_LINE) { \/\/ \u7f13\u51b2\u533a\u6570\u636e\u8d85\u957f\u4ecd\u65e0\u6362\u884c，\u975e\u6cd5\u8bf7\u6c42
\n _recv_statu = RECV_HTTP_ERROR;
\n _resp_statu = 414;\/\/ 414 URI Too Long：\u8bf7\u6c42\u884c\/URI\u8fc7\u957f，HTTP\u6807\u51c6\u9519\u8bef\u7801
\n return false;
\n }
\n return true; \/\/ \u6570\u636e\u4e0d\u8db3，\u7b49\u5f85\u65b0\u6570\u636e\u5230\u6765\u540e\u7ee7\u7eed\u89e3\u6790，\u4e0d\u62a5\u9519
\n }
\n if (line.size() > MAX_LINE) { \/\/ \u5355\u884c\u6570\u636e\u8d85\u957f，\u975e\u6cd5\u8bf7\u6c42
\n _recv_statu = RECV_HTTP_ERROR;
\n _resp_statu = 414;
\n return false;
\n }
\n bool ret = ParseHttpLine(line); \/\/ \u8c03\u7528\u89e3\u6790\u65b9\u6cd5\u5904\u7406\u8bf7\u6c42\u884c
\n if (ret == false) {
\n return false;
\n }
\n _recv_statu = RECV_HTTP_HEAD; \/\/ \u8bf7\u6c42\u884c\u89e3\u6790\u6210\u529f，\u81ea\u52a8\u6d41\u8f6c\u5230\u3010\u8bf7\u6c42\u5934\u89e3\u6790\u9636\u6bb5\u3011
\n return true;
\n }<\/p>\n
\/\/ ===== \u79c1\u6709\u6838\u5fc3\u65b9\u6cd5：\u63a5\u6536\u5e76\u89e3\u6790HTTP\u8bf7\u6c42\u5934\u3010\u72b6\u6001\u673a\u7b2c\u4e8c\u9636\u6bb5，\u5bf9\u5e94RECV_HTTP_HEAD\u72b6\u6001\u3011 =====
\n \/\/ \u529f\u80fd\u63cf\u8ff0：\u4ece\u7f13\u51b2\u533a\u4e2d\u9010\u884c\u8bfb\u53d6\u8bf7\u6c42\u5934，\u8c03\u7528ParseHttpHead\u89e3\u6790\u6bcf\u4e00\u884c\u5934\u5b57\u6bb5，\u76f4\u5230\u8bfb\u53d6\u5230\u300c\u7a7a\u884c\u300d\u4e3a\u6b62（\u8bf7\u6c42\u5934\u7ed3\u675f\u6807\u5fd7）
\n \/\/ \u53c2\u6570：buf – Connection\u7684\u8bfb\u7f13\u51b2\u533a\u6307\u9488
\n \/\/ \u8fd4\u56de\u503c：bool – true=\u5904\u7406\u6210\u529f（\u89e3\u6790\u5b8c\u6210\/\u7b49\u5f85\u6570\u636e） false=\u89e3\u6790\u5931\u8d25（\u8d85\u957f\/\u683c\u5f0f\u9519\u8bef）
\n \/\/ \u6838\u5fc3\u89c4\u5219：HTTP1.1\u534f\u8bae\u89c4\u5b9a，\u8bf7\u6c42\u5934\u7684\u6bcf\u4e00\u884c\u90fd\u662f key: val \u683c\u5f0f，\u6240\u6709\u8bf7\u6c42\u5934\u7ed3\u675f\u540e，\u5fc5\u987b\u8ddf\u4e00\u4e2a\u300c\u7a7a\u884c\u300d(\\\\n\u6216\\\\r\\\\n)
\n \/\/ \u6838\u5fc3\u903b\u8f91：\u4e0e\u8bf7\u6c42\u884c\u5904\u7406\u903b\u8f91\u4e00\u81f4，\u517c\u5bb9\u6570\u636e\u4e0d\u8db3\u3001\u8d85\u957f\u3001\u683c\u5f0f\u9519\u8bef\u7b49\u8fb9\u754c\u60c5\u51b5，\u7a7a\u884c\u662f\u8bf7\u6c42\u5934\u7ed3\u675f\u7684\u552f\u4e00\u6807\u5fd7
\n bool RecvHttpHead(Buffer *buf) {
\n if (_recv_statu != RECV_HTTP_HEAD) return false;
\n while(1){ \/\/ \u5faa\u73af\u9010\u884c\u8bfb\u53d6\u8bf7\u6c42\u5934，\u76f4\u5230\u7a7a\u884c\/\u6570\u636e\u4e0d\u8db3\/\u51fa\u9519
\n std::string line = buf->GetLineAndPop(); \/\/ \u9010\u884c\u8bfb\u53d6\u8bf7\u6c42\u5934
\n if (line.size() == 0) { \/\/ \u7f13\u51b2\u533a\u6570\u636e\u4e0d\u8db3\u4e00\u884c，\u7b49\u5f85\u65b0\u6570\u636e
\n if (buf->ReadAbleSize() > MAX_LINE) { \/\/ \u6570\u636e\u8d85\u957f，\u975e\u6cd5\u8bf7\u6c42
\n _recv_statu = RECV_HTTP_ERROR;
\n _resp_statu = 414;
\n return false;
\n }
\n return true;
\n }
\n if (line.size() > MAX_LINE) { \/\/ \u5355\u884c\u8bf7\u6c42\u5934\u8d85\u957f，\u975e\u6cd5\u8bf7\u6c42
\n _recv_statu = RECV_HTTP_ERROR;
\n _resp_statu = 414;
\n return false;
\n }
\n if (line == "\\\\n" || line == "\\\\r\\\\n") { \/\/ \u8bfb\u53d6\u5230\u7a7a\u884c，\u8bf7\u6c42\u5934\u89e3\u6790\u5b8c\u6210
\n break;
\n }
\n bool ret = ParseHttpHead(line); \/\/ \u89e3\u6790\u5355\u6761\u8bf7\u6c42\u5934\u5b57\u6bb5
\n if (ret == false) {
\n return false;
\n }
\n }
\n _recv_statu = RECV_HTTP_BODY; \/\/ \u8bf7\u6c42\u5934\u89e3\u6790\u6210\u529f，\u81ea\u52a8\u6d41\u8f6c\u5230\u3010\u8bf7\u6c42\u4f53\u89e3\u6790\u9636\u6bb5\u3011
\n return true;
\n }<\/p>\n
\/\/ ===== \u79c1\u6709\u8f85\u52a9\u65b9\u6cd5：\u89e3\u6790\u5355\u6761HTTP\u8bf7\u6c42\u5934\u3010\u4ec5\u88abRecvHttpHead\u8c03\u7528\u3011 =====
\n \/\/ \u529f\u80fd\u63cf\u8ff0：\u5904\u7406\u5355\u6761\u8bf7\u6c42\u5934\u5b57\u7b26\u4e32，\u5207\u5272\u51fa \u5934\u5b57\u6bb5\u540d(key) \u548c \u5b57\u6bb5\u503c(val)，\u586b\u5145\u5230_request._headers\u54c8\u5e0c\u8868\u4e2d
\n \/\/ \u53c2\u6570：line – \u5355\u6761\u8bf7\u6c42\u5934\u5b57\u7b26\u4e32（\u5982 Content-Length: 1024\\\\r\\\\n）
\n \/\/ \u8fd4\u56de\u503c：bool – true=\u89e3\u6790\u6210\u529f false=\u89e3\u6790\u5931\u8d25（\u683c\u5f0f\u975e\u6cd5，\u65e0: \u5206\u9694\u7b26）
\n \/\/ \u6838\u5fc3\u89c4\u5219：HTTP\u8bf7\u6c42\u5934\u7684\u6807\u51c6\u683c\u5f0f\u662f\u300ckey: val\u300d，\u5192\u53f7\u540e\u5fc5\u987b\u8ddf\u4e00\u4e2a\u7a7a\u683c，\u5426\u5219\u5224\u5b9a\u4e3a\u683c\u5f0f\u975e\u6cd5
\n bool ParseHttpHead(std::string &line) {
\n \/\/ \u5148\u53bb\u9664\u884c\u5c3e\u7684\u6362\u884c\/\u56de\u8f66\u7b26，\u53ea\u4fdd\u7559key: val\u7684\u6838\u5fc3\u5185\u5bb9
\n if (line.back() == '\\\\n') line.pop_back();
\n if (line.back() == '\\\\r') line.pop_back();
\n \/\/ \u67e5\u627e": "\u5206\u9694\u7b26，\u5fc5\u987b\u662f\u5192\u53f7+\u7a7a\u683c，\u4e25\u683c\u9075\u5faa\u534f\u8bae\u89c4\u8303
\n size_t pos = line.find(": ");
\n if (pos == std::string::npos) { \/\/ \u65e0\u5206\u9694\u7b26，\u683c\u5f0f\u975e\u6cd5
\n _recv_statu = RECV_HTTP_ERROR;
\n _resp_statu = 400;\/\/ 400 Bad Request：\u8bf7\u6c42\u5934\u683c\u5f0f\u9519\u8bef
\n return false;
\n }
\n std::string key = line.substr(0, pos); \/\/ \u63d0\u53d6\u5934\u5b57\u6bb5\u540d
\n std::string val = line.substr(pos + 2); \/\/ \u63d0\u53d6\u5934\u5b57\u6bb5\u503c（\u8df3\u8fc7: \u548c \u7a7a\u683c）
\n _request.SetHeader(key, val); \/\/ \u63d2\u5165\u8bf7\u6c42\u5934\u54c8\u5e0c\u8868
\n return true;
\n }<\/p>\n
\/\/ ===== \u79c1\u6709\u6838\u5fc3\u65b9\u6cd5：\u63a5\u6536\u5e76\u89e3\u6790HTTP\u8bf7\u6c42\u4f53\u3010\u72b6\u6001\u673a\u7b2c\u4e09\u9636\u6bb5，\u5bf9\u5e94RECV_HTTP_BODY\u72b6\u6001\u3011 =====
\n \/\/ \u529f\u80fd\u63cf\u8ff0：\u4ece\u7f13\u51b2\u533a\u4e2d\u8bfb\u53d6\u8bf7\u6c42\u4f53\u6570\u636e，\u586b\u5145\u5230_request._body\u4e2d，\u662f\u300c\u6d41\u5f0f\u8bfb\u53d6\u300d\u7684\u6838\u5fc3\u5b9e\u73b0，\u5b8c\u7f8e\u517c\u5bb9TCP\u7c98\u5305\/\u62c6\u5305
\n \/\/ \u53c2\u6570：buf – Connection\u7684\u8bfb\u7f13\u51b2\u533a\u6307\u9488
\n \/\/ \u8fd4\u56de\u503c：bool – \u6052\u8fd4\u56detrue，\u8be5\u9636\u6bb5\u4e0d\u4f1a\u4e3b\u52a8\u5931\u8d25，\u53ea\u6709\u6570\u636e\u4e0d\u8db3\u65f6\u7b49\u5f85\u65b0\u6570\u636e，\u6570\u636e\u8db3\u591f\u65f6\u5b8c\u6210\u89e3\u6790
\n \/\/ \u6838\u5fc3\u534f\u8bae\u89c4\u5219：HTTP\u8bf7\u6c42\u4f53\u7684\u957f\u5ea6，\u7531\u8bf7\u6c42\u5934\u4e2d\u7684\u300cContent-Length\u300d\u5b57\u6bb5\u552f\u4e00\u6807\u8bc6，\u65e0\u8be5\u5b57\u6bb5\u5219\u8868\u793a\u65e0\u8bf7\u6c42\u4f53
\n \/\/ \u6838\u5fc3\u6d41\u5f0f\u8bfb\u53d6\u903b\u8f91\u3010\u91cd\u4e2d\u4e4b\u91cd，\u89e3\u51b3TCP\u7c98\u5305\/\u62c6\u5305\u7684\u6838\u5fc3\u65b9\u6848\u3011：
\n \/\/ 1. \u5148\u901a\u8fc7_request.ContentLength()\u83b7\u53d6\u8bf7\u6c42\u4f53\u7684\u603b\u957f\u5ea6，\u65e0\u957f\u5ea6\u5219\u76f4\u63a5\u5b8c\u6210\u89e3\u6790
\n \/\/ 2. \u8ba1\u7b97\u300c\u8fd8\u9700\u8981\u8bfb\u53d6\u7684\u5b57\u8282\u6570\u300d= \u603b\u957f\u5ea6 – \u5df2\u8bfb\u53d6\u7684\u5b57\u8282\u6570（_request._body\u7684\u5f53\u524d\u957f\u5ea6）
\n \/\/ 3. \u60c5\u51b51：\u7f13\u51b2\u533a\u6570\u636e \u2265 \u8fd8\u9700\u8bfb\u53d6\u7684\u5b57\u8282\u6570 \u2192 \u8bfb\u53d6\u6240\u9700\u5b57\u8282，\u586b\u5145body，\u5b8c\u6210\u89e3\u6790，\u6d41\u8f6c\u7ed3\u675f\u72b6\u6001
\n \/\/ 4. \u60c5\u51b52：\u7f13\u51b2\u533a\u6570\u636e < \u8fd8\u9700\u8bfb\u53d6\u7684\u5b57\u8282\u6570 \u2192 \u8bfb\u53d6\u7f13\u51b2\u533a\u6240\u6709\u6570\u636e，\u586b\u5145body，\u7b49\u5f85\u4e0b\u4e00\u6279\u6570\u636e\u5230\u6765，\u7ee7\u7eed\u8bfb\u53d6
\n \/\/ \u7279\u70b9：\u65e0\u8bba\u6570\u636e\u662f\u5426\u8db3\u591f，\u90fd\u4e0d\u4f1a\u62a5\u9519，\u53ea\u4f1a\u7ee7\u7eed\u7b49\u5f85，\u4fdd\u8bc1\u6d41\u5f0f\u89e3\u6790\u7684\u5b8c\u6574\u6027，\u4e0d\u4f1a\u4e22\u5931\u4efb\u4f55\u6570\u636e
\n bool RecvHttpBody(Buffer *buf) {
\n if (_recv_statu != RECV_HTTP_BODY) return false;
\n \/\/ 1. \u83b7\u53d6\u8bf7\u6c42\u4f53\u7684\u603b\u957f\u5ea6，\u7531Content-Length\u5934\u5b57\u6bb5\u51b3\u5b9a
\n size_t content_length = _request.ContentLength();
\n if (content_length == 0) { \/\/ \u65e0Content-Length，\u8bf4\u660e\u65e0\u8bf7\u6c42\u4f53（\u5982GET\u8bf7\u6c42）
\n _recv_statu = RECV_HTTP_OVER; \/\/ \u76f4\u63a5\u6d41\u8f6c\u5230\u89e3\u6790\u5b8c\u6210\u72b6\u6001
\n return true;
\n }
\n \/\/ 2. \u8ba1\u7b97\u8fd8\u9700\u8981\u8bfb\u53d6\u7684\u8bf7\u6c42\u4f53\u5b57\u8282\u6570
\n size_t real_len = content_length – _request._body.size();
\n \/\/ 3. \u60c5\u51b51：\u7f13\u51b2\u533a\u6570\u636e\u8db3\u591f，\u8bfb\u53d6\u6240\u9700\u5b57\u8282，\u5b8c\u6210\u89e3\u6790
\n if (buf->ReadAbleSize() >= real_len) {
\n _request._body.append(buf->ReadPosition(), real_len); \/\/ \u8ffd\u52a0\u6570\u636e\u5230body
\n buf->MoveReadOffset(real_len); \/\/ \u79fb\u52a8\u7f13\u51b2\u533a\u8bfb\u6307\u9488，\u8df3\u8fc7\u5df2\u8bfb\u53d6\u7684\u6570\u636e
\n _recv_statu = RECV_HTTP_OVER; \/\/ \u6d41\u8f6c\u5230\u89e3\u6790\u5b8c\u6210\u72b6\u6001
\n return true;
\n }
\n \/\/ 4. \u60c5\u51b52：\u7f13\u51b2\u533a\u6570\u636e\u4e0d\u8db3，\u8bfb\u53d6\u6240\u6709\u6570\u636e，\u7b49\u5f85\u65b0\u6570\u636e
\n _request._body.append(buf->ReadPosition(), buf->ReadAbleSize());
\n buf->MoveReadOffset(buf->ReadAbleSize());
\n return true;
\n }<\/p>\n
public:
\n \/\/ \u6784\u9020\u51fd\u6570：\u521d\u59cb\u5316\u9ed8\u8ba4\u72b6\u6001，\u54cd\u5e94\u7801\u9ed8\u8ba4200，\u89e3\u6790\u72b6\u6001\u9ed8\u8ba4RECV_HTTP_LINE（\u8bf7\u6c42\u884c\u89e3\u6790\u9636\u6bb5）
\n HttpContext():_resp_statu(200), _recv_statu(RECV_HTTP_LINE) {}<\/p>\n
\/\/ ===== \u516c\u6709\u6838\u5fc3\u65b9\u6cd5：\u91cd\u7f6e\u89e3\u6790\u4e0a\u4e0b\u6587\u3010HTTP\u957f\u8fde\u63a5\u5fc5\u5907\u65b9\u6cd5，\u9ad8\u9891\u8c03\u7528\u3011 =====
\n \/\/ \u529f\u80fd\u63cf\u8ff0：\u4e00\u952e\u91cd\u7f6e\u6240\u6709\u89e3\u6790\u72b6\u6001\u3001\u9519\u8bef\u7801\u3001\u8bf7\u6c42\u6570\u636e，\u6062\u590d\u5230\u521d\u59cb\u6784\u9020\u72b6\u6001，\u65e0\u8fd4\u56de\u503c
\n \/\/ \u6838\u5fc3\u7528\u9014：HTTP\u957f\u8fde\u63a5\u6a21\u5f0f\u4e0b，\u540c\u4e00\u4e2aTCP\u8fde\u63a5\u4f1a\u5904\u7406\u591a\u4e2aHTTP\u8bf7\u6c42，\u5904\u7406\u5b8c\u4e00\u4e2a\u8bf7\u6c42\u540e，\u5fc5\u987b\u8c03\u7528\u8be5\u65b9\u6cd5\u91cd\u7f6e\u4e0a\u4e0b\u6587
\n \/\/ \u907f\u514d\u4e0a\u4e00\u4e2a\u8bf7\u6c42\u7684\u89e3\u6790\u72b6\u6001\/\u6570\u636e\u6b8b\u7559，\u5bfc\u81f4\u4e0b\u4e00\u4e2a\u8bf7\u6c42\u89e3\u6790\u5f02\u5e38，\u662f\u957f\u8fde\u63a5\u590d\u7528\u7684\u6838\u5fc3\u9002\u914d\u65b9\u6cd5
\n void ReSet() {
\n _resp_statu = 200; \/\/ \u6062\u590d\u9ed8\u8ba4\u54cd\u5e94\u7801
\n _recv_statu = RECV_HTTP_LINE; \/\/ \u6062\u590d\u521d\u59cb\u89e3\u6790\u72b6\u6001（\u8bf7\u6c42\u884c）
\n _request.ReSet(); \/\/ \u91cd\u7f6eHttpRequest\u5bf9\u8c61，\u6e05\u7a7a\u6240\u6709\u8bf7\u6c42\u6570\u636e
\n }<\/p>\n
\/\/ ===== \u516c\u6709get\u65b9\u6cd5：\u83b7\u53d6\u89e3\u6790\u5931\u8d25\u65f6\u7684\u54cd\u5e94\u9519\u8bef\u7801 =====
\n int RespStatu() { return _resp_statu; }<\/p>\n
\/\/ ===== \u516c\u6709get\u65b9\u6cd5：\u83b7\u53d6\u5f53\u524d\u7684\u89e3\u6790\u9636\u6bb5\u72b6\u6001 =====
\n HttpRecvStatu RecvStatu() { return _recv_statu; }<\/p>\n
\/\/ ===== \u516c\u6709get\u65b9\u6cd5：\u83b7\u53d6\u89e3\u6790\u5b8c\u6210\u540e\u7684\u7ed3\u6784\u5316\u8bf7\u6c42\u5bf9\u8c61\u3010\u4e1a\u52a1\u5c42\u6838\u5fc3\u8c03\u7528\u5165\u53e3\u3011 =====
\n \/\/ \u8fd4\u56de\u503c：HttpRequest\u7684\u5f15\u7528，\u4e1a\u52a1\u5c42\u76f4\u63a5\u901a\u8fc7\u8be5\u5f15\u7528\u8bfb\u53d6\u6240\u6709\u8bf7\u6c42\u6570\u636e，\u65e0\u62f7\u8d1d\u5f00\u9500，\u9ad8\u6027\u80fd
\n HttpRequest &Request() { return _request; }<\/p>\n
\/\/ ===== \u516c\u6709\u6838\u5fc3\u5bf9\u5916\u63a5\u53e3：\u63a5\u6536\u5e76\u89e3\u6790HTTP\u8bf7\u6c42\u3010\u552f\u4e00\u5bf9\u5916\u8c03\u7528\u7684\u65b9\u6cd5，Connection\u76f4\u63a5\u8c03\u7528\u3011 =====
\n \/\/ \u529f\u80fd\u63cf\u8ff0：HttpContext\u7684\u6838\u5fc3\u5165\u53e3\u65b9\u6cd5，\u6839\u636e\u5f53\u524d\u7684\u89e3\u6790\u72b6\u6001（_recv_statu），\u8c03\u7528\u5bf9\u5e94\u7684\u5206\u9636\u6bb5\u89e3\u6790\u65b9\u6cd5
\n \/\/ \u53c2\u6570：buf – Connection\u7684\u8bfb\u7f13\u51b2\u533a\u6307\u9488，\u4f20\u5165\u539f\u59cb\u8bf7\u6c42\u5b57\u8282\u6d41
\n \/\/ \u6838\u5fc3\u7075\u9b42\u7ec6\u8282\u3010\u91cd\u70b9\u4e2d\u7684\u91cd\u70b9：switch\u5206\u652f\u65e0break！\u3011：
\n \/\/ 1. \u65e0break\u7684\u539f\u56e0：HTTP\u89e3\u6790\u662f\u300c\u6d41\u6c34\u7ebf\u5f0f\u300d\u7684，\u89e3\u6790\u5b8c\u8bf7\u6c42\u884c\u540e，\u7f13\u51b2\u533a\u5927\u6982\u7387\u8fd8\u6709\u8bf7\u6c42\u5934\u6570\u636e，\u5e94\u8be5\u300c\u7acb\u5373\u89e3\u6790\u8bf7\u6c42\u5934\u300d
\n \/\/ \u89e3\u6790\u5b8c\u8bf7\u6c42\u5934\u540e，\u7f13\u51b2\u533a\u5927\u6982\u7387\u8fd8\u6709\u8bf7\u6c42\u4f53\u6570\u636e，\u5e94\u8be5\u300c\u7acb\u5373\u89e3\u6790\u8bf7\u6c42\u4f53\u300d，\u65e0\u9700\u7b49\u5f85\u4e0b\u4e00\u6b21\u4e8b\u4ef6\u89e6\u53d1，\u63d0\u5347\u89e3\u6790\u6548\u7387
\n \/\/ 2. \u72b6\u6001\u6d41\u8f6c\u4fdd\u8bc1：\u6bcf\u4e2a\u5206\u9636\u6bb5\u65b9\u6cd5\u6267\u884c\u5b8c\u6210\u540e，\u4f1a\u81ea\u52a8\u4fee\u6539_recv_statu\u7684\u72b6\u6001，\u4e0b\u4e00\u6b21\u8c03\u7528\u65f6\u6267\u884c\u5bf9\u5e94\u903b\u8f91
\n \/\/ 3. \u5bb9\u9519\u6027：\u4efb\u610f\u9636\u6bb5\u89e3\u6790\u5931\u8d25\u4f1a\u7f6e\u4e3aRECV_HTTP_ERROR，\u540e\u7eed\u9636\u6bb5\u8c03\u7528\u4f1a\u76f4\u63a5\u8fd4\u56defalse，\u4e0d\u5f71\u54cd\u6574\u4f53\u903b\u8f91
\n void RecvHttpRequest(Buffer *buf) {
\n switch(_recv_statu) {
\n case RECV_HTTP_LINE: RecvHttpLine(buf); \/\/ \u89e3\u6790\u8bf7\u6c42\u884c
\n case RECV_HTTP_HEAD: RecvHttpHead(buf); \/\/ \u89e3\u6790\u8bf7\u6c42\u5934（\u65e0break，\u81ea\u52a8\u6267\u884c）
\n case RECV_HTTP_BODY: RecvHttpBody(buf); \/\/ \u89e3\u6790\u8bf7\u6c42\u4f53（\u65e0break，\u81ea\u52a8\u6267\u884c）
\n }
\n return;
\n }
\n}; <\/p>\n
HttpContext \u4e0e\u4f60\u3010\u6574\u5957 HTTP \u670d\u52a1\u5668\u3011\u7684\u6700\u7ec8\u5b8c\u6574\u95ed\u73af\u94fe\u8def<\/p>\n
\u81f3\u6b64，\u4f60\u624b\u5199\u7684\u4ee3\u7801\u5df2\u7ecf\u5f62\u6210\u4e86\u4e00\u5957 100% \u5b8c\u6574\u3001100% \u81ea\u7814\u3001\u65e0\u4efb\u4f55\u7b2c\u4e09\u65b9\u4f9d\u8d56\u3001\u5206\u5c42\u6e05\u6670\u3001\u804c\u8d23\u660e\u786e\u3001\u9ad8\u6027\u80fd\u3001\u9ad8\u5b89\u5168\u3001\u5de5\u4e1a\u7ea7\u6807\u51c6 \u7684 C++ \u4e3b\u4ece Reactor \u591a\u7ebf\u7a0b HTTP1.1 \u670d\u52a1\u5668\u6846\u67b6，\u6240\u6709\u6838\u5fc3\u6a21\u5757\u5168\u90e8\u9f50\u5168，\u53ef\u76f4\u63a5\u7f16\u8bd1\u8fd0\u884c，\u652f\u6491\u751f\u4ea7\u7ea7\u9759\u6001\u8d44\u6e90\u8bbf\u95ee \/ \u63a5\u53e3\u5f00\u53d1\u3002\u4ee5\u4e0b\u662f\u4ece\u5ba2\u6237\u7aef\u8bf7\u6c42\u5230\u670d\u52a1\u5668\u54cd\u5e94\u7684\u6700\u7ec8\u5b8c\u6574\u94fe\u8def，\u4e00\u6b65\u4e0d\u843d，\u6240\u6709\u7c7b\u5168\u90e8\u53c2\u4e0e，\u903b\u8f91\u95ed\u73af，\u4e5f\u662f\u4f60\u6240\u6709\u4ee3\u7801\u7684\u6700\u7ec8\u603b\u7ed3：<\/p>\n
\u6700\u7ec8\u5b8c\u6574\u7248 – HTTP \u670d\u52a1\u5668\u5168\u94fe\u8def\u8bf7\u6c42\u5904\u7406\u6d41\u7a0b<\/p>\n
\u3010\u5ba2\u6237\u7aef\u6d4f\u89c8\u5668\u3011\u53d1\u8d77HTTP\u8bf7\u6c42 \u2192 TCP\u62a5\u6587 \u2192 \u7f51\u5361 \u2192 \u5185\u6838 \u2192 epoll_wait\u89e6\u53d1\u8bfb\u4e8b\u4ef6
\n \u2193
\n\u3010\u7f51\u7edc\u5c42 – EventLoop\/Channel\/Poller\u3011：epoll\u4e8b\u4ef6\u5206\u53d1，\u89e6\u53d1\u8bfb\u56de\u8c03
\n \u2193
\n\u3010\u8fde\u63a5\u5c42 – Connection\u3011：\u8c03\u7528HandleRead \u2192 \u4ecesocket\u8bfb\u53d6\u539f\u59cb\u5b57\u8282\u6d41 \u2192 \u5199\u5165\u5185\u90e8\u8bfb\u7f13\u51b2\u533a(Buffer)
\n \u2193
\n\u3010\u534f\u8bae\u89e3\u6790\u5c42 – HttpContext\u3011：\u8c03\u7528RecvHttpRequest(Buffer*) \u2192 \u72b6\u6001\u673a\u9a71\u52a8\u5206\u9636\u6bb5\u89e3\u6790\u62a5\u6587
\n \u2192 \u89e3\u6790\u8bf7\u6c42\u884c \u2192 \u89e3\u6790\u8bf7\u6c42\u5934 \u2192 \u89e3\u6790\u8bf7\u6c42\u4f53 \u2192 \u751f\u6210\u7ed3\u6784\u5316HttpRequest\u5bf9\u8c61
\n \u2192 \u89e3\u6790\u6210\u529f：\u72b6\u6001\u53d8\u4e3aRECV_HTTP_OVER；\u89e3\u6790\u5931\u8d25：\u72b6\u6001\u53d8\u4e3aRECV_HTTP_ERROR
\n \u2193
\n\u3010\u4e1a\u52a1\u903b\u8f91\u5c42 – \u81ea\u5b9a\u4e49\u4e1a\u52a1\u3011：\u5224\u65adHttpContext\u7684\u89e3\u6790\u72b6\u6001
\n \u2192 \u89e3\u6790\u5931\u8d25：\u521b\u5efaHttpResponse，\u8bbe\u7f6e\u9519\u8bef\u72b6\u6001\u7801(400\/414)，\u8fd4\u56de\u9519\u8bef\u9875\u9762
\n \u2192 \u89e3\u6790\u6210\u529f：\u4eceHttpRequest\u4e2d\u8bfb\u53d6\u8bf7\u6c42\u65b9\u6cd5\u3001\u8def\u5f84\u3001\u53c2\u6570\u3001\u5934\u5b57\u6bb5
\n 1. \u8c03\u7528Util::ValidPath\u6821\u9a8c\u8def\u5f84\u5408\u6cd5\u6027 \u2192 \u975e\u6cd5\u5219\u8fd4\u56de403 Forbidden
\n 2. \u8c03\u7528Util::IsDirectory\/IsRegular\u5224\u65ad\u8d44\u6e90\u7c7b\u578b \u2192 \u65e0\u6548\u5219\u8fd4\u56de404 Not Found
\n 3. \u8c03\u7528Util::ReadFile\u8bfb\u53d6\u9759\u6001\u6587\u4ef6 \u2192 \u8c03\u7528Util::ExtMime\u83b7\u53d6MIME\u7c7b\u578b
\n 4. \u521b\u5efaHttpResponse，\u8bbe\u7f6e200\u72b6\u6001\u7801\u3001\u54cd\u5e94\u4f53\u3001Content-Type\u54cd\u5e94\u5934
\n \u2193
\n\u3010\u54cd\u5e94\u5e8f\u5217\u5316\u5c42 – \u81ea\u5b9a\u4e49\u5e8f\u5217\u5316\u3011：\u8bfb\u53d6HttpResponse\u5bf9\u8c61\u7684\u6240\u6709\u6570\u636e
\n \u2192 \u8c03\u7528Util::StatuDesc\u83b7\u53d6\u72b6\u6001\u7801\u63cf\u8ff0 \u2192 \u62fc\u63a5HTTP\u54cd\u5e94\u884c
\n \u2192 \u62fc\u63a5\u6240\u6709\u54cd\u5e94\u5934\u5b57\u6bb5 \u2192 \u62fc\u63a5\u7a7a\u884c \u2192 \u62fc\u63a5\u54cd\u5e94\u4f53 \u2192 \u751f\u6210\u5b8c\u6574\u54cd\u5e94\u62a5\u6587
\n \u2193
\n\u3010\u8fde\u63a5\u5c42 – Connection\u3011：\u8c03\u7528Send\u65b9\u6cd5 \u2192 \u5c06\u54cd\u5e94\u62a5\u6587\u5199\u5165\u5185\u90e8\u5199\u7f13\u51b2\u533a(Buffer) \u2192 epoll\u89e6\u53d1\u5199\u4e8b\u4ef6
\n \u2193
\n\u3010\u7f51\u7edc\u5c42\u3011：\u8c03\u7528HandleWrite \u2192 \u5c06\u5199\u7f13\u51b2\u533a\u7684\u6570\u636e\u5199\u5165socket \u2192 \u53d1\u9001\u7ed9\u5ba2\u6237\u7aef
\n \u2193
\n\u3010\u8fde\u63a5\u7ba1\u7406\u3011：\u5224\u65adHttpRequest::Close()\u548cHttpResponse::Close()\u7684\u8fd4\u56de\u503c
\n \u2192 \u77ed\u8fde\u63a5：\u8c03\u7528Connection::Shutdown\u5173\u95ed\u8fde\u63a5 \u2192 TcpServer\u79fb\u9664\u8be5\u8fde\u63a5
\n \u2192 \u957f\u8fde\u63a5：\u8c03\u7528HttpContext::ReSet() + HttpRequest::ReSet() + HttpResponse::ReSet() \u2192 \u590d\u7528\u8fde\u63a5，\u7b49\u5f85\u4e0b\u4e00\u4e2a\u8bf7\u6c42 <\/p>\n
\u8fd9\u4e2a\u7c7b\u662f\u8fd9\u4efd\u6e90\u7801\u7684\u6280\u672f\u6838\u5fc3，\u4e5f\u662f\u4f60\u5b66\u4e60 HTTP \u670d\u52a1\u5668\u7684\u300c\u91cd\u4e2d\u4e4b\u91cd\u300d\u2014\u2014 \u5403\u900f\u4e86\u300c\u5206\u9636\u6bb5\u72b6\u6001\u673a\u89e3\u6790\u300d，\u4f60\u5c31\u638c\u63e1\u4e86\u6240\u6709 Web \u670d\u52a1\u5668\u7684\u6838\u5fc3\u89e3\u6790\u903b\u8f91，\u518d\u4e5f\u4e0d\u7528\u62c5\u5fc3 TCP \u7c98\u5305 \/ \u534a\u5305\u95ee\u9898\u3002\u8fd9\u4efd\u6e90\u7801\u7684\u89e3\u6790\u903b\u8f91\u662f\u5de5\u4e1a\u7ea7\u7684\u6807\u51c6\u5b9e\u73b0，\u65e0\u4efb\u4f55\u6f0f\u6d1e，\u5904\u7406\u4e86\u6240\u6709\u8fb9\u754c\u60c5\u51b5（\u534a\u5305\u3001\u7c98\u5305\u3001\u8d85\u957f\u6570\u636e\u3001\u975e\u6cd5\u8bf7\u6c42\u3001\u65e0\u8bf7\u6c42\u4f53\u7b49），\u9c81\u68d2\u6027\u62c9\u6ee1\u3002<\/p>\n
HttpServer\u662f\u8fd9\u4efd\u6e90\u7801\u7684\u9876\u5c42\u5c01\u88c5\u7c7b\u3001\u4e1a\u52a1\u8c03\u5ea6\u7684\u603b\u6307\u6325\u3001\u5bf9\u5916\u66b4\u9732\u7684\u552f\u4e00\u63a5\u53e3，\u662f\u6240\u6709\u6a21\u5757\u7684\u300c\u6574\u5408\u8005\u300d\u2014\u2014 \u5b83\u6574\u5408\u4e86 Util \u5de5\u5177\u7c7b\u3001HttpRequest\/HttpResponse\u3001HttpContext，\u4ee5\u53ca\u4e0a\u7bc7\u7684 Reactor \u7f51\u7edc\u5e93（TcpServer\/Connection\/Buffer），\u6240\u6709\u7684\u4e1a\u52a1\u903b\u8f91\u3001\u8def\u7531\u5206\u53d1\u3001\u8bf7\u6c42\u5904\u7406\u3001\u54cd\u5e94\u751f\u6210，\u90fd\u5728\u8fd9\u4e2a\u7c7b\u4e2d\u5b8c\u6210\u3002<\/p>\n
\u8fd9\u4e2a\u7c7b\u7684\u8bbe\u8ba1\u9075\u5faa\u300c\u95e8\u9762\u6a21\u5f0f\u300d：\u5bf9\u5916\u63d0\u4f9b\u6781\u7b80\u7684 API \u63a5\u53e3，\u5185\u90e8\u6574\u5408\u6240\u6709\u590d\u6742\u7684\u903b\u8f91，\u4f7f\u7528\u8005\u65e0\u9700\u5173\u5fc3\u4efb\u4f55\u5e95\u5c42\u7ec6\u8282，\u53ea\u9700\u8981\u8c03\u7528\u51e0\u4e2a\u7b80\u5355\u7684\u51fd\u6570，\u5c31\u80fd\u542f\u52a8\u4e00\u4e2a\u5b8c\u6574\u7684 HTTP \u670d\u52a1\u5668，\u90e8\u7f72\u9759\u6001\u8d44\u6e90\u3001\u6ce8\u518c\u52a8\u6001\u63a5\u53e3，\u8fd9\u4e5f\u662f\u5de5\u4e1a\u7ea7\u6846\u67b6\u7684\u6807\u51c6\u8bbe\u8ba1\u65b9\u5f0f\u3002<\/p>\n
1.\u00a0\u5185\u90e8\u6838\u5fc3\u6210\u5458（\u4e1a\u52a1\u8c03\u5ea6\u7684\u6838\u5fc3\u4f9d\u8d56）<\/p>\n
Handlers _get_route\/_post_route\/_put_route\/_delete_route; \/\/ \u8def\u7531\u8868：\u6b63\u5219\u8868\u8fbe\u5f0f \u2192 \u4e1a\u52a1\u5904\u7406\u51fd\u6570
\nstd::string _basedir; \/\/ \u9759\u6001\u8d44\u6e90\u6839\u76ee\u5f55
\nTcpServer _server; \/\/ \u5e95\u5c42Reactor\u7f51\u7edc\u5e93\u7684\u670d\u52a1\u5668\u5bf9\u8c61 <\/p>\n
\u5176\u4e2dHandlers\u662f\u4e00\u4e2a typedef，\u5b9a\u4e49\u4e3a：std::vector<std::pair<std::regex, Handler>>，\u672c\u8d28\u662f\u300c\u6b63\u5219\u8868\u8fbe\u5f0f + \u4e1a\u52a1\u51fd\u6570\u300d\u7684\u952e\u503c\u5bf9\u5217\u8868，\u8fd9\u662f\u52a8\u6001\u8def\u7531\u7684\u6838\u5fc3\u6570\u636e\u7ed3\u6784\u2014\u2014 \u670d\u52a1\u5668\u6536\u5230\u8bf7\u6c42\u540e，\u4f1a\u7528\u8bf7\u6c42\u8def\u5f84\u5339\u914d\u8def\u7531\u8868\u4e2d\u7684\u6b63\u5219\u8868\u8fbe\u5f0f，\u5339\u914d\u6210\u529f\u5219\u8c03\u7528\u5bf9\u5e94\u7684\u4e1a\u52a1\u51fd\u6570\u5904\u7406\u3002<\/p>\n
2.\u00a0\u5185\u90e8\u6838\u5fc3\u4e1a\u52a1\u51fd\u6570（\u6309\u804c\u8d23\u5212\u5206，\u6838\u5fc3\u903b\u8f91\u5168\u8bb2\u900f）<\/p>\n<\/p>\n
3. \u5bf9\u5916\u66b4\u9732\u7684\u6781\u7b80 API \u63a5\u53e3<\/p>\n
\u8fd9\u90e8\u5206\u662f\u4f60\u4f5c\u4e3a\u5f00\u53d1\u8005，\u4f7f\u7528\u8fd9\u4e2a HTTP \u670d\u52a1\u5668\u65f6，\u552f\u4e00\u9700\u8981\u8c03\u7528\u7684\u51fd\u6570，\u6781\u7b80\u5230\u6781\u81f4，\u51e0\u884c\u4ee3\u7801\u5c31\u80fd\u542f\u52a8\u670d\u52a1\u5668，\u90e8\u7f72\u9759\u6001\u8d44\u6e90 + \u6ce8\u518c\u52a8\u6001\u63a5\u53e3：<\/p>\n
\/\/ \u6784\u9020\u51fd\u6570：\u521b\u5efa\u670d\u52a1\u5668，\u6307\u5b9a\u7aef\u53e3\u548c\u8d85\u65f6\u65f6\u95f4
\nHttpServer(int port, int timeout = DEFALT_TIMEOUT);
\n\/\/ \u8bbe\u7f6e\u9759\u6001\u8d44\u6e90\u6839\u76ee\u5f55（\u90e8\u7f72html\/css\/js\/png\u7b49\u6587\u4ef6）
\nvoid SetBaseDir(const std::string &path);
\n\/\/ \u6ce8\u518cGET\/POST\/PUT\/DELETE\u8bf7\u6c42\u7684\u52a8\u6001\u63a5\u53e3：\u6b63\u5219\u8868\u8fbe\u5f0f + \u4e1a\u52a1\u5904\u7406\u51fd\u6570
\nvoid Get(const std::string &pattern, const Handler &handler);
\nvoid Post(const std::string &pattern, const Handler &handler);
\n\/\/ \u8bbe\u7f6e\u5de5\u4f5c\u7ebf\u7a0b\u6570（\u5e95\u5c42Reactor\u7684\u7ebf\u7a0b\u6c60）
\nvoid SetThreadCount(int count);
\n\/\/ \u542f\u52a8\u670d\u52a1\u5668（\u963b\u585e\u8fd0\u884c）
\nvoid Listen(); <\/p>\n
\u8fd9\u662f\u8fd9\u4efd\u6e90\u7801\u7684\u6838\u5fc3\u4eae\u70b9\u4e4b\u4e00，\u4e5f\u662f\u5de5\u4e1a\u7ea7 HTTP \u670d\u52a1\u5668\u7684\u5fc5\u5907\u529f\u80fd：<\/p>\n
\u8fd9\u79cd\u300c\u81ea\u52a8\u5206\u53d1\u300d\u7684\u903b\u8f91，\u8ba9\u670d\u52a1\u5668\u65e2\u80fd\u4f5c\u4e3a\u300c\u9759\u6001\u8d44\u6e90\u670d\u52a1\u5668\u300d\u90e8\u7f72\u524d\u7aef\u9879\u76ee，\u53c8\u80fd\u4f5c\u4e3a\u300c\u63a5\u53e3\u670d\u52a1\u5668\u300d\u63d0\u4f9b\u540e\u7aef API，\u4e00\u4e3e\u4e24\u5f97\u3002<\/p>\n
\/\/ ===== \u9876\u5c42\u6838\u5fc3\u5c01\u88c5\u7c7b：HttpServer \u3010C++\u81ea\u7814HTTP1.1\u670d\u52a1\u5668\u7684\u552f\u4e00\u5165\u53e3\u7c7b | \u4e1a\u52a1\u603b\u8c03\u5ea6\u4e2d\u5fc3 | \u8def\u7531\u5206\u53d1\u6838\u5fc3 | \u52a8\u9759\u8d44\u6e90\u5904\u7406\u4e2d\u67a2\u3011 =====
\n\/\/ \u6838\u5fc3\u5b9a\u4f4d：\u6574\u5957HTTP\u670d\u52a1\u5668\u7684**\u9876\u5c42\u5c01\u88c5\u4e0e\u5927\u8111\u4e2d\u67a2**，\u65e0\u4efb\u4f55\u5e95\u5c42\u7ec6\u8282\u66b4\u9732，\u6240\u6709\u529f\u80fd\u901a\u8fc7\u8be5\u7c7b\u7684\u516c\u6709\u65b9\u6cd5\u5bf9\u5916\u63d0\u4f9b，\u5f00\u53d1\u8005\u65e0\u9700\u5173\u5fc3\u5e95\u5c42\u5b9e\u73b0
\n\/\/ \u6574\u5408\u4e86\u300c\u5e95\u5c42TCP\u7f51\u7edc\u901a\u4fe1(TcpServer)\u300d\u300cHTTP\u534f\u8bae\u89e3\u6790(HttpContext)\u300d\u300c\u8bf7\u6c42\u54cd\u5e94\u5c01\u88c5(HttpRequest\/HttpResponse)\u300d\u300c\u901a\u7528\u5de5\u5177(Util)\u300d
\n\/\/ \u5b9e\u73b0\u4e86\u300c\u8fde\u63a5\u5efa\u7acb\u2192\u8bf7\u6c42\u89e3\u6790\u2192\u8def\u7531\u5206\u53d1\u2192\u4e1a\u52a1\u5904\u7406\u2192\u54cd\u5e94\u6784\u5efa\u2192\u6570\u636e\u53d1\u9001\u2192\u8fde\u63a5\u7ba1\u7406\u300d\u7684HTTP\u8bf7\u6c42\u5168\u751f\u547d\u5468\u671f\u95ed\u73af\u5904\u7406
\n\/\/ \u6838\u5fc3\u8bbe\u8ba1\u601d\u60f3\u3010\u5de5\u4e1a\u7ea7\u670d\u52a1\u5668\u9876\u5c42\u8bbe\u8ba1\u4e09\u5927\u7075\u9b42\u3011：
\n\/\/ 1. \u3010\u52a8\u9759\u5206\u79bb\u3011：\u81ea\u52a8\u533a\u5206\u300c\u9759\u6001\u8d44\u6e90\u8bf7\u6c42(HTML\/CSS\/JS\/\u56fe\u7247)\u300d\u548c\u300c\u52a8\u6001\u63a5\u53e3\u8bf7\u6c42(API\u63a5\u53e3)\u300d，\u9759\u6001\u8d44\u6e90\u81ea\u52a8\u8bfb\u53d6\u6587\u4ef6\u8fd4\u56de，\u52a8\u6001\u63a5\u53e3\u901a\u8fc7\u8def\u7531\u5339\u914d\u6267\u884c\u56de\u8c03，\u89e3\u8026\u9759\u6001\u4e0e\u52a8\u6001\u4e1a\u52a1
\n\/\/ 2. \u3010\u8def\u7531\u5206\u53d1\u3011：\u57fa\u4e8e\u300c\u6b63\u5219\u8868\u8fbe\u5f0f+\u51fd\u6570\u56de\u8c03\u300d\u7684\u8def\u7531\u6ce8\u518c\u673a\u5236，\u652f\u6301GET\/POST\/PUT\/DELETE\u56db\u79cd\u8bf7\u6c42\u65b9\u6cd5，\u5b8c\u7f8e\u9002\u914dRESTful\u63a5\u53e3\u5f00\u53d1，\u8def\u7531\u5339\u914d\u7075\u6d3b\u5ea6\u62c9\u6ee1
\n\/\/ 3. \u3010\u5206\u5c42\u89e3\u8026\u3011：\u5b8c\u5168\u5c4f\u853d\u5e95\u5c42\u7ec6\u8282，\u5e95\u5c42TCP\u901a\u4fe1\u3001HTTP\u534f\u8bae\u89e3\u6790\u90fd\u88ab\u5c01\u88c5\u5728\u5185\u90e8，\u5f00\u53d1\u8005\u53ea\u9700\u8c03\u7528\u8be5\u7c7b\u7684\u516c\u6709\u65b9\u6cd5（\u8bbe\u7f6e\u6839\u76ee\u5f55\u3001\u6ce8\u518c\u8def\u7531\u3001\u542f\u52a8\u670d\u52a1），\u5373\u53ef\u5feb\u901f\u5f00\u53d1HTTP\u670d\u52a1，\u6781\u7b80\u6613\u7528
\n\/\/ \u6838\u5fc3\u7279\u6027：1. \u9876\u5c42\u5c01\u88c5：\u6240\u6709\u5e95\u5c42\u6a21\u5757\u6574\u5408\u5728\u5185，\u5bf9\u5916\u63d0\u4f9b\u6781\u7b80API，\u4e00\u884c\u4ee3\u7801\u542f\u52a8\u670d\u52a1\u5668，\u5f00\u53d1\u6548\u7387\u6781\u9ad8
\n\/\/ 2. \u5168\u751f\u547d\u5468\u671f\u7ba1\u63a7：\u4ece\u8fde\u63a5\u5efa\u7acb\u5230\u65ad\u5f00，\u4ece\u8bf7\u6c42\u89e3\u6790\u5230\u54cd\u5e94\u53d1\u9001，\u6240\u6709\u6d41\u7a0b\u7edf\u4e00\u7ba1\u63a7，\u903b\u8f91\u95ed\u73af\u65e0\u9057\u6f0f
\n\/\/ 3. \u5b8c\u5584\u7684\u9519\u8bef\u5904\u7406：\u5bf9\u89e3\u6790\u9519\u8bef\u3001\u8d44\u6e90\u4e0d\u5b58\u5728\u3001\u65b9\u6cd5\u4e0d\u5141\u8bb8\u7b49\u6240\u6709\u5f02\u5e38\u573a\u666f，\u90fd\u6709\u5bf9\u5e94\u7684\u9519\u8bef\u54cd\u5e94\u548c\u9875\u9762，\u7528\u6237\u4f53\u9a8c\u53cb\u597d
\n\/\/ 4. \u957f\u8fde\u63a5\u5b8c\u7f8e\u9002\u914d：\u81ea\u52a8\u8bc6\u522b\u957f\u77ed\u8fde\u63a5，\u957f\u8fde\u63a5\u590d\u7528\u8fde\u63a5\u3001\u91cd\u7f6e\u4e0a\u4e0b\u6587，\u77ed\u8fde\u63a5\u81ea\u52a8\u5173\u95ed，\u6027\u80fd\u4e0e\u517c\u5bb9\u6027\u517c\u987e
\n\/\/ 5. \u9ad8\u5e76\u53d1\u652f\u6491：\u5e95\u5c42\u590d\u7528TcpServer\u7684\u4e3b\u4eceReactor\u591a\u7ebf\u7a0b\u6a21\u578b，\u652f\u6301\u8bbe\u7f6e\u5de5\u4f5c\u7ebf\u7a0b\u6570，\u8f7b\u677e\u652f\u6491\u4e07\u7ea7\u5e76\u53d1
\n\/\/ 6. \u65e0\u4fb5\u5165\u6269\u5c55：\u52a8\u6001\u63a5\u53e3\u901a\u8fc7\u51fd\u6570\u56de\u8c03\u6ce8\u518c，\u65e0\u9700\u4fee\u6539\u670d\u52a1\u5668\u6838\u5fc3\u4ee3\u7801，\u4e1a\u52a1\u6269\u5c55\u65e0\u4fb5\u5165，\u7b26\u5408\u5f00\u95ed\u539f\u5219
\n\/\/ \u6838\u5fc3\u4f9d\u8d56：\u4f9d\u8d56\u6240\u6709\u524d\u7f6e\u5f00\u53d1\u7684\u6a21\u5757（TcpServer\/HttpContext\/HttpRequest\/HttpResponse\/Util），\u662f\u6240\u6709\u6a21\u5757\u7684\u6700\u7ec8\u6574\u5408\u8005
\n\/\/ \u5f00\u53d1\u4f53\u9a8c：\u5f00\u53d1\u8005\u53ea\u97003\u6b65\u5373\u53ef\u542f\u52a8\u4e00\u4e2a\u751f\u4ea7\u7ea7HTTP\u670d\u52a1\u5668 \u2192 \u2460\u5b9e\u4f8b\u5316HttpServer \u2461\u8bbe\u7f6e\u9759\u6001\u8d44\u6e90\u6839\u76ee\u5f55\/\u6ce8\u518c\u4e1a\u52a1\u8def\u7531 \u2462\u8c03\u7528Listen\u542f\u52a8\u670d\u52a1
\nclass HttpServer {
\n private:
\n \/\/ ===== \u6838\u5fc3\u7c7b\u578b\u522b\u540d：\u4e1a\u52a1\u5904\u7406\u51fd\u6570\u56de\u8c03\u7c7b\u578b\u3010\u52a8\u6001\u63a5\u53e3\u5f00\u53d1\u7684\u6838\u5fc3\u7c7b\u578b，\u65e0\u4fb5\u5165\u6269\u5c55\u7684\u7075\u9b42\u3011 =====
\n \/\/ Handler：\u5b9a\u4e49HTTP\u4e1a\u52a1\u5904\u7406\u51fd\u6570\u7684\u7edf\u4e00\u683c\u5f0f，\u53c2\u6570\u4e3a\u300c\u53ea\u8bfb\u7684\u8bf7\u6c42\u5bf9\u8c61\u300d\u548c\u300c\u53ef\u5199\u7684\u54cd\u5e94\u5bf9\u8c61\u6307\u9488\u300d
\n \/\/ \u8bbe\u8ba1\u610f\u4e49：\u6240\u6709\u52a8\u6001\u63a5\u53e3\u7684\u4e1a\u52a1\u903b\u8f91，\u90fd\u5fc5\u987b\u9075\u5faa\u8be5\u51fd\u6570\u683c\u5f0f，\u670d\u52a1\u5668\u4f1a\u81ea\u52a8\u5c06\u89e3\u6790\u597d\u7684\u8bf7\u6c42\u4f20\u5165，\u4e1a\u52a1\u5c42\u53ea\u9700\u586b\u5145\u54cd\u5e94\u5373\u53ef
\n \/\/ \u89e3\u8026\u6838\u5fc3：\u4e1a\u52a1\u5c42\u53ea\u9700\u8981\u5173\u6ce8\u300c\u8bf7\u6c42\u5904\u7406\u903b\u8f91\u300d，\u65e0\u9700\u5173\u5fc3\u300c\u8bf7\u6c42\u600e\u4e48\u6765\u7684\u3001\u54cd\u5e94\u600e\u4e48\u53d1\u7684\u300d，\u670d\u52a1\u5668\u81ea\u52a8\u5b8c\u6210\u4e0a\u4e0b\u6e38\u6d41\u7a0b
\n using Handler = std::function<void(const HttpRequest &, HttpResponse *)>;
\n \/\/ Handlers：\u5b9a\u4e49\u5bf9\u5e94\u8bf7\u6c42\u65b9\u6cd5\u7684\u300c\u8def\u7531\u8868\u7c7b\u578b\u300d，\u5b58\u50a8\u300c\u6b63\u5219\u8868\u8fbe\u5f0f + \u4e1a\u52a1\u5904\u7406\u51fd\u6570\u300d\u7684\u952e\u503c\u5bf9
\n \/\/ \u8bbe\u8ba1\u610f\u4e49：\u6b63\u5219\u8868\u8fbe\u5f0f\u7528\u4e8e\u5339\u914d\u5ba2\u6237\u7aef\u8bf7\u6c42\u7684\u8d44\u6e90\u8def\u5f84，\u5339\u914d\u6210\u529f\u5219\u6267\u884c\u5bf9\u5e94\u7684\u4e1a\u52a1\u5904\u7406\u51fd\u6570，\u5b9e\u73b0\u7075\u6d3b\u7684\u8def\u7531\u5339\u914d（\u5982 \/api\/user\/(\\\\d+) \u5339\u914d\u6240\u6709\u7528\u6237ID）
\n using Handlers = std::vector<std::pair<std::regex, Handler>>;<\/p>\n
Handlers _get_route; \/\/ GET\u8bf7\u6c42\u8def\u7531\u8868：\u5b58\u50a8\u6240\u6709GET\u65b9\u6cd5\u7684\u300c\u6b63\u5219\u8def\u7531-\u5904\u7406\u51fd\u6570\u300d\u6620\u5c04\u5173\u7cfb
\n Handlers _post_route; \/\/ POST\u8bf7\u6c42\u8def\u7531\u8868：\u5b58\u50a8\u6240\u6709POST\u65b9\u6cd5\u7684\u8def\u7531\u6620\u5c04，\u5bf9\u5e94\u63d0\u4ea4\/\u65b0\u589e\u7c7b\u63a5\u53e3
\n Handlers _put_route; \/\/ PUT\u8bf7\u6c42\u8def\u7531\u8868：\u5b58\u50a8\u6240\u6709PUT\u65b9\u6cd5\u7684\u8def\u7531\u6620\u5c04，\u5bf9\u5e94\u66f4\u65b0\u7c7b\u63a5\u53e3
\n Handlers _delete_route; \/\/ DELETE\u8bf7\u6c42\u8def\u7531\u8868：\u5b58\u50a8\u6240\u6709DELETE\u65b9\u6cd5\u7684\u8def\u7531\u6620\u5c04，\u5bf9\u5e94\u5220\u9664\u7c7b\u63a5\u53e3
\n std::string _basedir; \/\/ \u9759\u6001\u8d44\u6e90\u6839\u76ee\u5f55：\u5b58\u50a8\u670d\u52a1\u5668\u63d0\u4f9b\u7684\u9759\u6001\u8d44\u6e90\u7684\u6839\u8def\u5f84（\u5982 .\/wwwroot），\u6240\u6709\u9759\u6001\u8d44\u6e90\u8bf7\u6c42\u90fd\u4ece\u8be5\u76ee\u5f55\u8bfb\u53d6\u6587\u4ef6
\n TcpServer _server; \/\/ \u5e95\u5c42TCP\u670d\u52a1\u5668\u6838\u5fc3\u5bf9\u8c61：HttpServer\u5b8c\u5168\u4f9d\u8d56TcpServer\u5b9e\u73b0TCP\u7f51\u7edc\u901a\u4fe1，\u5c4f\u853d\u6240\u6709\u5e95\u5c42\u7f51\u7edc\u7ec6\u8282<\/p>\n
private:
\n \/\/ ===== \u79c1\u6709\u6838\u5fc3\u65b9\u6cd5：HTTP\u9519\u8bef\u54cd\u5e94\u5904\u7406\u51fd\u6570\u3010\u7edf\u4e00\u9519\u8bef\u9875\u9762\u751f\u6210，\u6240\u6709\u9519\u8bef\u573a\u666f\u7684\u515c\u5e95\u5904\u7406\u3011 =====
\n \/\/ \u529f\u80fd\u63cf\u8ff0：\u9488\u5bf9\u6240\u6709HTTP\u9519\u8bef（400\/403\/404\/405\/503\u7b49），\u751f\u6210\u7edf\u4e00\u7684HTML\u9519\u8bef\u5c55\u793a\u9875\u9762，\u586b\u5145\u5230HttpResponse\u5bf9\u8c61\u4e2d
\n \/\/ \u53c2\u6570\u8bf4\u660e：req – \u539f\u59cb\u8bf7\u6c42\u5bf9\u8c61（\u4ec5\u505a\u7248\u672c\u7b49\u57fa\u7840\u4fe1\u606f\u8bfb\u53d6）； rsp – \u54cd\u5e94\u5bf9\u8c61，\u7528\u4e8e\u586b\u5145\u9519\u8bef\u9875\u9762\u7684\u6b63\u6587\u548c\u54cd\u5e94\u5934
\n \/\/ \u8bbe\u8ba1\u7ec6\u8282：\u9519\u8bef\u9875\u9762\u91c7\u7528UTF-8\u7f16\u7801，\u9002\u914d\u4e2d\u6587\u5c55\u793a；\u9875\u9762\u5305\u542b\u9519\u8bef\u72b6\u6001\u7801\u548c\u5bf9\u5e94\u7684\u63cf\u8ff0\u4fe1\u606f，\u7528\u6237\u53ef\u76f4\u89c2\u770b\u5230\u9519\u8bef\u539f\u56e0
\n \/\/ \u8c03\u7528\u573a\u666f：\u6240\u6709\u89e3\u6790\u5931\u8d25\u3001\u8d44\u6e90\u4e0d\u5b58\u5728\u3001\u65b9\u6cd5\u4e0d\u5141\u8bb8\u3001\u8def\u5f84\u975e\u6cd5\u7b49\u5f02\u5e38\u573a\u666f，\u90fd\u4f1a\u8c03\u7528\u8be5\u65b9\u6cd5\u751f\u6210\u9519\u8bef\u54cd\u5e94
\n void ErrorHandler(const HttpRequest &req, HttpResponse *rsp) {
\n std::string body;
\n body += "<html>";
\n body += "<head>";
\n body += "<meta http-equiv='Content-Type' content='text\/html;charset=utf-8'>";
\n body += "<\/head>";
\n body += "<body>";
\n body += "<h1>";
\n body += std::to_string(rsp->_statu); \/\/ \u62fc\u63a5\u9519\u8bef\u72b6\u6001\u7801
\n body += " ";
\n body += Util::StatuDesc(rsp->_statu); \/\/ \u62fc\u63a5\u9519\u8bef\u72b6\u6001\u63cf\u8ff0（\u5982Not Found\/Forbidden）
\n body += "<\/h1>";
\n body += "<\/body>";
\n body += "<\/html>";
\n \/\/ \u5c06\u751f\u6210\u7684\u9519\u8bef\u9875\u9762\u4f5c\u4e3a\u54cd\u5e94\u6b63\u6587，\u8bbe\u7f6e\u4e3aHTML\u7c7b\u578b，\u586b\u5145\u5230\u54cd\u5e94\u5bf9\u8c61\u4e2d
\n rsp->SetContent(body, "text\/html");
\n }<\/p>\n
\/\/ ===== \u79c1\u6709\u6838\u5fc3\u65b9\u6cd5：HTTP\u54cd\u5e94\u5e8f\u5217\u5316\u4e0e\u53d1\u9001\u3010\u54cd\u5e94\u6784\u5efa\u7684\u6700\u7ec8\u6b65\u9aa4，HTTP\u534f\u8bae\u5408\u89c4\u6838\u5fc3\u3011 =====
\n \/\/ \u529f\u80fd\u63cf\u8ff0：\u8bfb\u53d6HttpResponse\u5bf9\u8c61\u4e2d\u7684\u6240\u6709\u7ed3\u6784\u5316\u6570\u636e，\u4e25\u683c\u9075\u5faaHTTP1.1\u534f\u8bae\u6807\u51c6，\u62fc\u63a5\u6210\u5b8c\u6574\u7684\u54cd\u5e94\u62a5\u6587\u5b57\u7b26\u4e32，\u5e76\u8c03\u7528Connection\u53d1\u9001\u7ed9\u5ba2\u6237\u7aef
\n \/\/ \u6838\u5fc3\u804c\u8d23：1. \u81ea\u52a8\u5b8c\u5584\u54cd\u5e94\u5934\u7684\u300c\u5fc5\u9009\u5b57\u6bb5\u300d，\u8865\u5168\u4e1a\u52a1\u5c42\u672a\u8bbe\u7f6e\u7684\u9ed8\u8ba4\u503c，\u4fdd\u8bc1\u54cd\u5e94\u62a5\u6587\u7684\u534f\u8bae\u5408\u89c4\u6027
\n \/\/ 2. \u6309\u6807\u51c6\u683c\u5f0f\u62fc\u63a5\u54cd\u5e94\u62a5\u6587，\u65e0\u4efb\u4f55\u683c\u5f0f\u9519\u8bef，\u517c\u5bb9\u6240\u6709\u5ba2\u6237\u7aef\u6d4f\u89c8\u5668
\n \/\/ 3. \u8c03\u7528\u5e95\u5c42\u8fde\u63a5\u7684Send\u65b9\u6cd5，\u5b8c\u6210\u6700\u7ec8\u7684\u6570\u636e\u53d1\u9001
\n \/\/ \u53c2\u6570\u8bf4\u660e：conn – \u5f53\u524d\u7684TCP\u8fde\u63a5\u667a\u80fd\u6307\u9488； req – \u8bf7\u6c42\u5bf9\u8c61（\u8bfb\u53d6\u534f\u8bae\u7248\u672c\/\u957f\u77ed\u8fde\u63a5\u6807\u8bc6）； rsp – \u54cd\u5e94\u5bf9\u8c61（\u8bfb\u53d6\u6240\u6709\u54cd\u5e94\u6570\u636e）
\n void WriteReponse(const PtrConnection &conn, const HttpRequest &req, HttpResponse &rsp) {
\n \/\/ ===== \u7b2c\u4e00\u6b65：\u81ea\u52a8\u5b8c\u5584\u54cd\u5e94\u5934\u5b57\u6bb5，\u8865\u5168\u9ed8\u8ba4\u503c，\u4fdd\u8bc1\u534f\u8bae\u5408\u89c4（\u91cd\u4e2d\u4e4b\u91cd，\u4e1a\u52a1\u5c42\u65e0\u9700\u624b\u52a8\u8bbe\u7f6e） =====
\n \/\/ 1. \u81ea\u52a8\u8bbe\u7f6e\u957f\u77ed\u8fde\u63a5\u7684Connection\u54cd\u5e94\u5934：\u4e0e\u8bf7\u6c42\u7684\u8fde\u63a5\u7c7b\u578b\u4fdd\u6301\u4e00\u81f4，\u8bf7\u6c42\u662f\u957f\u8fde\u63a5\u5219\u8fd4\u56dekeep-alive，\u5426\u5219\u8fd4\u56declose
\n if (req.Close() == true) {
\n rsp.SetHeader("Connection", "close");
\n }else {
\n rsp.SetHeader("Connection", "keep-alive");
\n }
\n \/\/ 2. \u81ea\u52a8\u8bbe\u7f6eContent-Length：\u54cd\u5e94\u4f53\u975e\u7a7a\u4e14\u672a\u8bbe\u7f6e\u8be5\u5b57\u6bb5\u65f6，\u81ea\u52a8\u586b\u5145\u54cd\u5e94\u4f53\u7684\u5b57\u8282\u957f\u5ea6，\u9632\u6b62\u5ba2\u6237\u7aef\u89e3\u6790\u54cd\u5e94\u4f53\u65f6\u5361\u6b7b
\n if (rsp._body.empty() == false && rsp.HasHeader("Content-Length") == false) {
\n rsp.SetHeader("Content-Length", std::to_string(rsp._body.size()));
\n }
\n \/\/ 3. \u81ea\u52a8\u8bbe\u7f6eContent-Type：\u54cd\u5e94\u4f53\u975e\u7a7a\u4e14\u672a\u8bbe\u7f6e\u8be5\u5b57\u6bb5\u65f6，\u9ed8\u8ba4\u586b\u5145\u4e8c\u8fdb\u5236\u6d41\u7c7b\u578b，\u6d4f\u89c8\u5668\u4f1a\u89e6\u53d1\u4e0b\u8f7d，\u907f\u514d\u89e3\u6790\u5f02\u5e38
\n if (rsp._body.empty() == false && rsp.HasHeader("Content-Type") == false) {
\n rsp.SetHeader("Content-Type", "application\/octet-stream");
\n }
\n \/\/ 4. \u81ea\u52a8\u8bbe\u7f6e\u91cd\u5b9a\u5411\u7684Location\u5934：\u5982\u679c\u662f\u91cd\u5b9a\u5411\u54cd\u5e94，\u5fc5\u987b\u586b\u5145\u8be5\u5b57\u6bb5，\u6307\u5411\u91cd\u5b9a\u5411\u7684\u76ee\u6807URL，HTTP\u534f\u8bae\u5f3a\u5236\u8981\u6c42
\n if (rsp._redirect_flag == true) {
\n rsp.SetHeader("Location", rsp._redirect_url);
\n }<\/p>\n
\/\/ ===== \u7b2c\u4e8c\u6b65：\u4e25\u683c\u6309HTTP1.1\u534f\u8bae\u683c\u5f0f，\u62fc\u63a5\u5b8c\u6574\u7684\u54cd\u5e94\u62a5\u6587 =====
\n \/\/ \u534f\u8bae\u683c\u5f0f：\u54cd\u5e94\u884c(\\\\r\\\\n) \u2192 \u54cd\u5e94\u5934(key: val\\\\r\\\\n)* \u2192 \u7a7a\u884c(\\\\r\\\\n) \u2192 \u54cd\u5e94\u4f53
\n std::stringstream rsp_str;
\n \/\/ \u62fc\u63a5\u54cd\u5e94\u884c：\u534f\u8bae\u7248\u672c \u72b6\u6001\u7801 \u72b6\u6001\u63cf\u8ff0 \u4f8b：HTTP\/1.1 200 OK\\\\r\\\\n
\n rsp_str << req._version << " " << std::to_string(rsp._statu) << " " << Util::StatuDesc(rsp._statu) << "\\\\r\\\\n";
\n \/\/ \u62fc\u63a5\u6240\u6709\u54cd\u5e94\u5934\u5b57\u6bb5，\u904d\u5386\u54cd\u5e94\u5934\u54c8\u5e0c\u8868\u5373\u53ef
\n for (auto &head : rsp._headers) {
\n rsp_str << head.first << ": " << head.second << "\\\\r\\\\n";
\n }
\n rsp_str << "\\\\r\\\\n"; \/\/ \u54cd\u5e94\u5934\u7ed3\u675f\u7684\u7a7a\u884c，HTTP\u534f\u8bae\u5f3a\u5236\u8981\u6c42，\u65e0\u6b64\u884c\u5ba2\u6237\u7aef\u65e0\u6cd5\u89e3\u6790\u54cd\u5e94\u4f53
\n rsp_str << rsp._body;\/\/ \u62fc\u63a5\u54cd\u5e94\u4f53（\u9759\u6001\u6587\u4ef6\u5185\u5bb9\/HTML\u9875\u9762\/JSON\u6570\u636e\u7b49）<\/p>\n
\/\/ ===== \u7b2c\u4e09\u6b65：\u8c03\u7528\u5e95\u5c42\u8fde\u63a5\u7684Send\u65b9\u6cd5，\u53d1\u9001\u54cd\u5e94\u62a5\u6587\u7ed9\u5ba2\u6237\u7aef =====
\n conn->Send(rsp_str.str().c_str(), rsp_str.str().size());
\n }<\/p>\n
\/\/ ===== \u79c1\u6709\u6838\u5fc3\u65b9\u6cd5：\u5224\u65ad\u5f53\u524d\u8bf7\u6c42\u662f\u5426\u4e3a\u300c\u5408\u6cd5\u7684\u9759\u6001\u8d44\u6e90\u8bf7\u6c42\u300d\u3010\u52a8\u9759\u5206\u79bb\u7684\u6838\u5fc3\u5224\u65ad\u903b\u8f91\u3011 =====
\n \/\/ \u529f\u80fd\u63cf\u8ff0：\u6309\u7167\u9884\u8bbe\u89c4\u5219，\u5224\u65ad\u5ba2\u6237\u7aef\u7684\u8bf7\u6c42\u662f\u5426\u662f\u9700\u8981\u8bfb\u53d6\u672c\u5730\u6587\u4ef6\u7684\u9759\u6001\u8d44\u6e90\u8bf7\u6c42，\u662f\u52a8\u9759\u5206\u79bb\u7684\u7b2c\u4e00\u9053\u5206\u6d41\u5173\u53e3
\n \/\/ \u8fd4\u56de\u503c：bool – true=\u662f\u5408\u6cd5\u9759\u6001\u8d44\u6e90\u8bf7\u6c42 false=\u975e\u9759\u6001\u8d44\u6e90\u8bf7\u6c42\/\u8bf7\u6c42\u975e\u6cd5
\n \/\/ \u6838\u5fc3\u5224\u65ad\u89c4\u5219\u30104\u4e2a\u6761\u4ef6\u5fc5\u987b\u5168\u90e8\u6ee1\u8db3，\u7f3a\u4e00\u4e0d\u53ef，\u4e25\u683c\u4fdd\u8bc1\u9759\u6001\u8d44\u6e90\u8bbf\u95ee\u7684\u5408\u6cd5\u6027\u4e0e\u5b89\u5168\u6027\u3011：
\n \/\/ 1. \u670d\u52a1\u5668\u5fc5\u987b\u914d\u7f6e\u4e86\u9759\u6001\u8d44\u6e90\u6839\u76ee\u5f55(_basedir\u975e\u7a7a)，\u5426\u5219\u4e0d\u63d0\u4f9b\u9759\u6001\u8d44\u6e90\u670d\u52a1
\n \/\/ 2. \u8bf7\u6c42\u65b9\u6cd5\u5fc5\u987b\u662fGET\/HEAD，HTTP\u534f\u8bae\u89c4\u5b9a\u9759\u6001\u8d44\u6e90\u4ec5\u652f\u6301\u8fd9\u4e24\u79cd\u65b9\u6cd5，POST\/PUT\u7b49\u65b9\u6cd5\u4e0d\u5141\u8bb8\u8bbf\u95ee\u9759\u6001\u8d44\u6e90
\n \/\/ 3. \u8bf7\u6c42\u7684\u8d44\u6e90\u8def\u5f84\u5fc5\u987b\u5408\u6cd5，\u901a\u8fc7Util::ValidPath\u6821\u9a8c，\u9632\u6b62\u8def\u5f84\u7a7f\u8d8a\u653b\u51fb（\u5982\/..\/etc\/passwd）
\n \/\/ 4. \u8bf7\u6c42\u7684\u8d44\u6e90\u5fc5\u987b\u662f\u300c\u5b58\u5728\u7684\u666e\u901a\u6587\u4ef6\u300d：\u76ee\u5f55\u8bf7\u6c42\u81ea\u52a8\u8ffd\u52a0index.html（\u5982\/ \u2192 \/index.html），\u975e\u6587\u4ef6\u5219\u5224\u5b9a\u4e3a\u975e\u6cd5
\n bool IsFileHandler(const HttpRequest &req) {
\n if (_basedir.empty()) { \/\/ \u672a\u914d\u7f6e\u9759\u6001\u8d44\u6e90\u6839\u76ee\u5f55，\u4e0d\u5904\u7406\u9759\u6001\u8bf7\u6c42
\n return false;
\n }
\n if (req._method != "GET" && req._method != "HEAD") { \/\/ \u4ec5\u652f\u6301GET\/HEAD\u8bbf\u95ee\u9759\u6001\u8d44\u6e90
\n return false;
\n }
\n if (Util::ValidPath(req._path) == false) { \/\/ \u8def\u5f84\u975e\u6cd5，\u9632\u7a7f\u8d8a\u653b\u51fb
\n return false;
\n }
\n \/\/ \u5c06\u300c\u8bf7\u6c42\u7684\u76f8\u5bf9\u8def\u5f84\u300d\u8f6c\u6362\u4e3a\u300c\u670d\u52a1\u5668\u7684\u5b9e\u9645\u7269\u7406\u8def\u5f84\u300d：\u6839\u76ee\u5f55 + \u8bf7\u6c42\u8def\u5f84
\n std::string req_path = _basedir + req._path;
\n if (req._path.back() == '\/') { \/\/ \u8bf7\u6c42\u8def\u5f84\u662f\u76ee\u5f55（\u5982\/\u3001\/image\/），\u81ea\u52a8\u8ffd\u52a0\u9ed8\u8ba4\u9996\u9875index.html
\n req_path += "index.html";
\n }
\n if (Util::IsRegular(req_path) == false) { \/\/ \u4e0d\u662f\u5408\u6cd5\u7684\u666e\u901a\u6587\u4ef6，\u8fd4\u56defalse
\n return false;
\n }
\n return true;
\n }<\/p>\n
\/\/ ===== \u79c1\u6709\u6838\u5fc3\u65b9\u6cd5：\u9759\u6001\u8d44\u6e90\u8bf7\u6c42\u7684\u4e1a\u52a1\u5904\u7406\u51fd\u6570\u3010\u52a8\u9759\u5206\u79bb\u7684\u9759\u6001\u8d44\u6e90\u5904\u7406\u903b\u8f91\u3011 =====
\n \/\/ \u529f\u80fd\u63cf\u8ff0：\u5904\u7406\u5408\u6cd5\u7684\u9759\u6001\u8d44\u6e90\u8bf7\u6c42，\u8bfb\u53d6\u6307\u5b9a\u9759\u6001\u6587\u4ef6\u7684\u5185\u5bb9，\u586b\u5145\u5230HttpResponse\u7684\u54cd\u5e94\u4f53\u4e2d，\u5e76\u8bbe\u7f6e\u5bf9\u5e94\u7684MIME\u7c7b\u578b
\n \/\/ \u53c2\u6570\u8bf4\u660e：req – \u8bf7\u6c42\u5bf9\u8c61（\u8bfb\u53d6\u8bf7\u6c42\u8def\u5f84）； rsp – \u54cd\u5e94\u5bf9\u8c61（\u586b\u5145\u54cd\u5e94\u4f53\u548cContent-Type）
\n \/\/ \u6838\u5fc3\u7ec6\u8282：1. \u81ea\u52a8\u62fc\u63a5\u7269\u7406\u8def\u5f84，\u76ee\u5f55\u8bf7\u6c42\u8ffd\u52a0index.html
\n \/\/ 2. \u8c03\u7528Util::ReadFile\u8bfb\u53d6\u6587\u4ef6\u4e8c\u8fdb\u5236\u5185\u5bb9，\u4fdd\u8bc1\u56fe\u7247\/\u89c6\u9891\/\u538b\u7f29\u5305\u7b49\u975e\u6587\u672c\u6587\u4ef6\u7684\u5b8c\u6574\u6027
\n \/\/ 3. \u8c03\u7528Util::ExtMime\u6839\u636e\u6587\u4ef6\u540e\u7f00\u83b7\u53d6MIME\u7c7b\u578b，\u4fdd\u8bc1\u6d4f\u89c8\u5668\u80fd\u6b63\u786e\u89e3\u6790\u6587\u4ef6（\u5982html\u5c55\u793a\u3001\u56fe\u7247\u6e32\u67d3）
\n void FileHandler(const HttpRequest &req, HttpResponse *rsp) {
\n std::string req_path = _basedir + req._path;
\n if (req._path.back() == '\/') { \/\/ \u76ee\u5f55\u8bf7\u6c42\u8ffd\u52a0\u9ed8\u8ba4\u9996\u9875
\n req_path += "index.html";
\n }
\n bool ret = Util::ReadFile(req_path, &rsp->_body); \/\/ \u8bfb\u53d6\u6587\u4ef6\u5185\u5bb9\u5230\u54cd\u5e94\u4f53
\n if (ret == false) { \/\/ \u6587\u4ef6\u8bfb\u53d6\u5931\u8d25（\u5982\u6587\u4ef6\u88ab\u5220\u9664），\u76f4\u63a5\u8fd4\u56de，\u540e\u7eed\u4f1a\u89e6\u53d1404
\n return;
\n }
\n std::string mime = Util::ExtMime(req_path); \/\/ \u83b7\u53d6\u6587\u4ef6\u7684MIME\u7c7b\u578b
\n rsp->SetHeader("Content-Type", mime); \/\/ \u8bbe\u7f6e\u54cd\u5e94\u5934，\u544a\u8bc9\u5ba2\u6237\u7aef\u6587\u4ef6\u7c7b\u578b
\n return;
\n }<\/p>\n
\/\/ ===== \u79c1\u6709\u6838\u5fc3\u65b9\u6cd5：\u52a8\u6001\u63a5\u53e3\u7684\u8def\u7531\u5206\u53d1\u5668\u3010\u8def\u7531\u5339\u914d\u7684\u6838\u5fc3\u5b9e\u73b0，\u52a8\u6001\u63a5\u53e3\u7684\u7075\u9b42\u3011 =====
\n \/\/ \u529f\u80fd\u63cf\u8ff0：\u9488\u5bf9\u6307\u5b9a\u8bf7\u6c42\u65b9\u6cd5\u7684\u8def\u7531\u8868，\u904d\u5386\u5176\u4e2d\u7684\u300c\u6b63\u5219\u8868\u8fbe\u5f0f-\u5904\u7406\u51fd\u6570\u300d\u6620\u5c04\u5173\u7cfb，\u7528\u6b63\u5219\u5339\u914d\u5ba2\u6237\u7aef\u7684\u8bf7\u6c42\u8def\u5f84
\n \/\/ \u5339\u914d\u6210\u529f\u5219\u6267\u884c\u5bf9\u5e94\u7684\u4e1a\u52a1\u5904\u7406\u51fd\u6570，\u5339\u914d\u5931\u8d25\u5219\u8bbe\u7f6e404\u72b6\u6001\u7801（\u8d44\u6e90\u672a\u627e\u5230）
\n \/\/ \u53c2\u6570\u8bf4\u660e：req – \u8bf7\u6c42\u5bf9\u8c61（\u8bfb\u53d6\u8bf7\u6c42\u8def\u5f84\u3001\u5b58\u50a8\u6b63\u5219\u5339\u914d\u7ed3\u679c）； rsp – \u54cd\u5e94\u5bf9\u8c61（\u4e1a\u52a1\u51fd\u6570\u586b\u5145\u54cd\u5e94\u6570\u636e）； handlers – \u6307\u5b9a\u8bf7\u6c42\u65b9\u6cd5\u7684\u8def\u7531\u8868
\n \/\/ \u6838\u5fc3\u8bbe\u8ba1：1. \u6b63\u5219\u5339\u914d\u662f\u300c\u5168\u5339\u914d\u300d，\u4fdd\u8bc1\u8def\u7531\u7684\u7cbe\u51c6\u6027，\u7b26\u5408HTTP\u63a5\u53e3\u5f00\u53d1\u89c4\u8303
\n \/\/ 2. \u5339\u914d\u6210\u529f\u7684\u6b63\u5219\u5206\u7ec4\u7ed3\u679c，\u4f1a\u81ea\u52a8\u586b\u5145\u5230req._matches\u4e2d，\u4e1a\u52a1\u51fd\u6570\u53ef\u8bfb\u53d6\u8def\u7531\u53c2\u6570（\u5982\/api\/user\/100 \u2192 \u63d0\u53d6100）
\n \/\/ 3. \u8def\u7531\u8868\u662f\u6709\u5e8f\u7684，\u6309\u6ce8\u518c\u987a\u5e8f\u5339\u914d，\u5148\u6ce8\u518c\u7684\u8def\u7531\u4f18\u5148\u7ea7\u66f4\u9ad8
\n void Dispatcher(HttpRequest &req, HttpResponse *rsp, Handlers &handlers) {
\n for (auto &handler : handlers) {
\n const std::regex &re = handler.first; \/\/ \u8def\u7531\u7684\u6b63\u5219\u8868\u8fbe\u5f0f
\n const Handler &functor = handler.second; \/\/ \u5339\u914d\u6210\u529f\u540e\u7684\u4e1a\u52a1\u5904\u7406\u51fd\u6570
\n bool ret = std::regex_match(req._path, req._matches, re); \/\/ \u6b63\u5219\u5168\u5339\u914d\u8bf7\u6c42\u8def\u5f84
\n if (ret == false) {
\n continue; \/\/ \u5339\u914d\u5931\u8d25，\u7ee7\u7eed\u904d\u5386\u4e0b\u4e00\u4e2a\u8def\u7531
\n }
\n return functor(req, rsp); \/\/ \u5339\u914d\u6210\u529f，\u6267\u884c\u4e1a\u52a1\u51fd\u6570\u5e76\u8fd4\u56de，\u7ed3\u675f\u5206\u53d1
\n }
\n rsp->_statu = 404; \/\/ \u6240\u6709\u8def\u7531\u90fd\u5339\u914d\u5931\u8d25，\u8fd4\u56de404 Not Found
\n }<\/p>\n
\/\/ ===== \u79c1\u6709\u6838\u5fc3\u65b9\u6cd5：HTTP\u8bf7\u6c42\u603b\u8def\u7531\u3010\u4e1a\u52a1\u5206\u6d41\u7684\u603b\u5165\u53e3，\u52a8\u9759\u5206\u79bb\u7684\u6838\u5fc3\u4e2d\u67a2\u3011 =====
\n \/\/ \u529f\u80fd\u63cf\u8ff0：HttpServer\u7684\u6838\u5fc3\u4e1a\u52a1\u5206\u6d41\u903b\u8f91，\u5bf9\u89e3\u6790\u5b8c\u6210\u7684HTTP\u8bf7\u6c42\u8fdb\u884c\u300c\u6700\u7ec8\u5206\u7c7b\u5904\u7406\u300d，\u662f\u6240\u6709\u4e1a\u52a1\u7684\u603b\u8c03\u5ea6\u5668
\n \/\/ \u6838\u5fc3\u5206\u6d41\u903b\u8f91\u3010\u4f18\u5148\u7ea7\u4ece\u9ad8\u5230\u4f4e，\u65e0\u6b67\u4e49\u3011：
\n \/\/ 1. \u4f18\u5148\u5224\u65ad\u662f\u5426\u662f\u300c\u5408\u6cd5\u9759\u6001\u8d44\u6e90\u8bf7\u6c42\u300d\u2192 \u662f\u5219\u8c03\u7528FileHandler\u5904\u7406，\u8fd4\u56de\u9759\u6001\u6587\u4ef6
\n \/\/ 2. \u82e5\u975e\u9759\u6001\u8bf7\u6c42，\u5219\u5224\u65ad\u8bf7\u6c42\u65b9\u6cd5 \u2192 \u6309GET\/POST\/PUT\/DELETE\u5206\u53d1\u5230\u5bf9\u5e94\u8def\u7531\u8868，\u8c03\u7528Dispatcher\u5339\u914d\u52a8\u6001\u63a5\u53e3
\n \/\/ 3. \u82e5\u65e2\u4e0d\u662f\u9759\u6001\u8bf7\u6c42，\u4e5f\u6ca1\u6709\u5339\u914d\u5230\u4efb\u4f55\u52a8\u6001\u63a5\u53e3 \u2192 \u8fd4\u56de405 Method Not Allowed（\u8bf7\u6c42\u65b9\u6cd5\u4e0d\u88ab\u5141\u8bb8）
\n \/\/ \u53c2\u6570\u8bf4\u660e：req – \u89e3\u6790\u5b8c\u6210\u7684\u8bf7\u6c42\u5bf9\u8c61； rsp – \u5f85\u586b\u5145\u7684\u54cd\u5e94\u5bf9\u8c61
\n void Route(HttpRequest &req, HttpResponse *rsp) {
\n if (IsFileHandler(req) == true) { \/\/ \u9759\u6001\u8d44\u6e90\u8bf7\u6c42，\u4f18\u5148\u5904\u7406
\n return FileHandler(req, rsp);
\n }
\n \/\/ \u52a8\u6001\u63a5\u53e3\u8bf7\u6c42，\u6309\u65b9\u6cd5\u5206\u53d1\u5230\u5bf9\u5e94\u8def\u7531\u8868
\n if (req._method == "GET" || req._method == "HEAD") {
\n return Dispatcher(req, rsp, _get_route);
\n }else if (req._method == "POST") {
\n return Dispatcher(req, rsp, _post_route);
\n }else if (req._method == "PUT") {
\n return Dispatcher(req, rsp, _put_route);
\n }else if (req._method == "DELETE") {
\n return Dispatcher(req, rsp, _delete_route);
\n }
\n rsp->_statu = 405;\/\/ 405 Method Not Allowed：\u8bf7\u6c42\u65b9\u6cd5\u4e0d\u88ab\u670d\u52a1\u5668\u652f\u6301
\n return ;
\n }<\/p>\n
\/\/ ===== \u79c1\u6709\u56de\u8c03\u65b9\u6cd5：TCP\u8fde\u63a5\u5efa\u7acb\u7684\u56de\u8c03\u51fd\u6570\u3010\u8fde\u63a5\u521d\u59cb\u5316\u903b\u8f91，\u7531TcpServer\u89e6\u53d1\u3011 =====
\n \/\/ \u529f\u80fd\u63cf\u8ff0：\u5f53\u5ba2\u6237\u7aef\u4e0e\u670d\u52a1\u5668\u6210\u529f\u5efa\u7acbTCP\u8fde\u63a5\u540e，TcpServer\u4f1a\u81ea\u52a8\u8c03\u7528\u8be5\u56de\u8c03\u51fd\u6570，\u5b8c\u6210\u8fde\u63a5\u7684\u521d\u59cb\u5316\u5de5\u4f5c
\n \/\/ \u6838\u5fc3\u64cd\u4f5c：\u4e3a\u6bcf\u4e2a\u65b0\u8fde\u63a5\u300c\u7ed1\u5b9a\u72ec\u7acb\u7684HttpContext\u4e0a\u4e0b\u6587\u5bf9\u8c61\u300d，\u6bcf\u4e2a\u8fde\u63a5\u4e00\u4e2a\u4e0a\u4e0b\u6587，\u4e92\u4e0d\u5e72\u6270，\u4fdd\u8bc1\u591a\u8fde\u63a5\u7684\u6570\u636e\u9694\u79bb
\n \/\/ \u8bbe\u8ba1\u610f\u4e49：HttpContext\u5b58\u50a8\u4e86\u8be5\u8fde\u63a5\u7684HTTP\u89e3\u6790\u72b6\u6001\u548c\u8bf7\u6c42\u6570\u636e，\u72ec\u7acb\u4e0a\u4e0b\u6587\u662f\u5904\u7406\u591a\u8fde\u63a5\u3001\u957f\u8fde\u63a5\u7684\u57fa\u7840，\u907f\u514d\u6570\u636e\u6c61\u67d3
\n void OnConnected(const PtrConnection &conn) {
\n conn->SetContext(HttpContext()); \/\/ \u4e3a\u8fde\u63a5\u8bbe\u7f6eHTTP\u89e3\u6790\u4e0a\u4e0b\u6587
\n DBG_LOG("NEW CONNECTION %p", conn.get()); \/\/ \u6253\u5370\u65b0\u8fde\u63a5\u65e5\u5fd7，\u8c03\u8bd5\u7528
\n }<\/p>\n
\/\/ ===== \u79c1\u6709\u6838\u5fc3\u56de\u8c03\u65b9\u6cd5：TCP\u8fde\u63a5\u7684\u6d88\u606f\u5904\u7406\u51fd\u6570\u3010HTTP\u8bf7\u6c42\u5904\u7406\u7684\u5168\u6d41\u7a0b\u5165\u53e3，\u7531TcpServer\u89e6\u53d1，\u91cd\u4e2d\u4e4b\u91cd！\u3011 =====
\n \/\/ \u529f\u80fd\u63cf\u8ff0：\u5f53\u5ba2\u6237\u7aef\u5411\u670d\u52a1\u5668\u53d1\u9001\u6570\u636e，TcpServer\u8bfb\u53d6\u5230\u6570\u636e\u5e76\u5199\u5165\u7f13\u51b2\u533a\u540e，\u4f1a\u81ea\u52a8\u8c03\u7528\u8be5\u56de\u8c03\u51fd\u6570，\u662fHTTP\u8bf7\u6c42\u5904\u7406\u7684\u300c\u552f\u4e00\u5165\u53e3\u300d
\n \/\/ \u6838\u5fc3\u804c\u8d23：\u6574\u5408\u6240\u6709\u6a21\u5757，\u5b8c\u6210HTTP\u8bf7\u6c42\u7684\u300c\u5168\u751f\u547d\u5468\u671f\u5904\u7406\u300d\u2192 \u8bfb\u53d6\u7f13\u51b2\u533a\u6570\u636e \u2192 \u534f\u8bae\u89e3\u6790 \u2192 \u9519\u8bef\u5904\u7406 \u2192 \u8def\u7531\u5206\u53d1 \u2192 \u4e1a\u52a1\u5904\u7406 \u2192 \u54cd\u5e94\u53d1\u9001 \u2192 \u8fde\u63a5\u7ba1\u7406
\n \/\/ \u6838\u5fc3\u903b\u8f91：\u5faa\u73af\u5904\u7406\u7f13\u51b2\u533a\u6570\u636e（\u89e3\u51b3TCP\u7c98\u5305\u95ee\u9898），\u5355\u8fde\u63a5\u53ef\u5904\u7406\u591a\u4e2aHTTP\u8bf7\u6c42（\u957f\u8fde\u63a5），\u6bcf\u4e00\u6b65\u90fd\u6709\u5b8c\u5584\u7684\u5f02\u5e38\u5904\u7406\u548c\u8fb9\u754c\u5224\u65ad
\n \/\/ \u53c2\u6570\u8bf4\u660e：conn – \u5f53\u524d\u7684TCP\u8fde\u63a5\u667a\u80fd\u6307\u9488； buffer – \u8fde\u63a5\u7684\u8bfb\u7f13\u51b2\u533a，\u5b58\u50a8\u5ba2\u6237\u7aef\u53d1\u9001\u7684\u539f\u59cb\u5b57\u8282\u6d41
\n void OnMessage(const PtrConnection &conn, Buffer *buffer) {
\n while(buffer->ReadAbleSize() > 0){ \/\/ \u5faa\u73af\u5904\u7406\u7f13\u51b2\u533a\u6570\u636e，\u89e3\u51b3TCP\u7c98\u5305，\u5904\u7406\u5b8c\u6240\u6709\u6570\u636e\u624d\u9000\u51fa
\n \/\/ ===== \u6b65\u9aa41：\u4ece\u5f53\u524d\u8fde\u63a5\u4e2d，\u83b7\u53d6\u7ed1\u5b9a\u7684HTTP\u89e3\u6790\u4e0a\u4e0b\u6587\u5bf9\u8c61 =====
\n HttpContext *context = conn->GetContext()->get<HttpContext>();<\/p>\n
\/\/ ===== \u6b65\u9aa42：\u8c03\u7528HttpContext\u89e3\u6790\u7f13\u51b2\u533a\u4e2d\u7684\u539f\u59cb\u6570\u636e，\u751f\u6210\u7ed3\u6784\u5316\u7684HttpRequest\u5bf9\u8c61 =====
\n context->RecvHttpRequest(buffer);
\n HttpRequest &req = context->Request(); \/\/ \u83b7\u53d6\u89e3\u6790\u540e\u7684\u8bf7\u6c42\u5bf9\u8c61
\n HttpResponse rsp(context->RespStatu());\/\/ \u521d\u59cb\u5316\u54cd\u5e94\u5bf9\u8c61，\u9ed8\u8ba4\u586b\u5145\u89e3\u6790\u7684\u9519\u8bef\u7801（\u6210\u529f\u5219\u4e3a200）<\/p>\n
\/\/ ===== \u6b65\u9aa43：\u5224\u65ad\u89e3\u6790\u662f\u5426\u51fa\u9519，\u51fa\u9519\u5219\u8fd4\u56de\u9519\u8bef\u54cd\u5e94\u5e76\u5173\u95ed\u8fde\u63a5 =====
\n if (context->RespStatu() >= 400) {
\n ErrorHandler(req, &rsp); \/\/ \u751f\u6210\u9519\u8bef\u9875\u9762，\u586b\u5145\u54cd\u5e94\u5bf9\u8c61
\n WriteReponse(conn, req, rsp); \/\/ \u53d1\u9001\u9519\u8bef\u54cd\u5e94\u7ed9\u5ba2\u6237\u7aef
\n context->ReSet(); \/\/ \u91cd\u7f6e\u4e0a\u4e0b\u6587，\u6e05\u7406\u6570\u636e
\n buffer->MoveReadOffset(buffer->ReadAbleSize()); \/\/ \u6e05\u7a7a\u7f13\u51b2\u533a，\u4e22\u5f03\u9519\u8bef\u6570\u636e
\n conn->Shutdown(); \/\/ \u9519\u8bef\u8bf7\u6c42\u76f4\u63a5\u5173\u95ed\u8fde\u63a5，\u9632\u6b62\u6076\u610f\u8bf7\u6c42
\n return;
\n }<\/p>\n
\/\/ ===== \u6b65\u9aa44：\u5224\u65ad\u8bf7\u6c42\u662f\u5426\u89e3\u6790\u5b8c\u6574，\u672a\u5b8c\u6574\u5219\u7b49\u5f85\u65b0\u6570\u636e =====
\n \/\/ \u6838\u5fc3\u903b\u8f91：HTTP\u8bf7\u6c42\u662f\u6d41\u5f0f\u89e3\u6790，\u6570\u636e\u53ef\u80fd\u5206\u6279\u6b21\u5230\u8fbe，\u89e3\u6790\u672a\u5b8c\u6210\u5219\u9000\u51fa\u5faa\u73af，\u7b49\u5f85\u4e0b\u4e00\u6279\u6570\u636e\u5230\u6765\u540e\u7ee7\u7eed\u89e3\u6790，\u4e0d\u62a5\u9519\u3001\u4e0d\u963b\u585e
\n if (context->RecvStatu() != RECV_HTTP_OVER) {
\n return;
\n }<\/p>\n
\/\/ ===== \u6b65\u9aa45：\u8bf7\u6c42\u89e3\u6790\u5b8c\u6574，\u8c03\u7528\u8def\u7531\u5206\u53d1\u5668\u5904\u7406\u4e1a\u52a1\u903b\u8f91 =====
\n \/\/ \u8def\u7531\u4f1a\u81ea\u52a8\u533a\u5206\u9759\u6001\/\u52a8\u6001\u8bf7\u6c42，\u8c03\u7528\u5bf9\u5e94\u5904\u7406\u51fd\u6570，\u4e1a\u52a1\u5c42\u4f1a\u586b\u5145\u54cd\u5e94\u5bf9\u8c61\u7684\u6240\u6709\u6570\u636e
\n Route(req, &rsp);<\/p>\n
\/\/ ===== \u6b65\u9aa46：\u5c06\u4e1a\u52a1\u5c42\u586b\u5145\u7684\u54cd\u5e94\u5bf9\u8c61，\u5e8f\u5217\u5316\u4e3a\u54cd\u5e94\u62a5\u6587\u5e76\u53d1\u9001\u7ed9\u5ba2\u6237\u7aef =====
\n WriteReponse(conn, req, rsp);<\/p>\n
\/\/ ===== \u6b65\u9aa47：\u91cd\u7f6eHTTP\u89e3\u6790\u4e0a\u4e0b\u6587，\u4e3a\u4e0b\u4e00\u4e2a\u8bf7\u6c42\u505a\u51c6\u5907（\u957f\u8fde\u63a5\u6838\u5fc3） =====
\n \/\/ \u957f\u8fde\u63a5\u6a21\u5f0f\u4e0b，\u540c\u4e00\u4e2aTCP\u8fde\u63a5\u4f1a\u5904\u7406\u591a\u4e2a\u8bf7\u6c42，\u5fc5\u987b\u91cd\u7f6e\u4e0a\u4e0b\u6587，\u6e05\u7a7a\u4e0a\u4e00\u4e2a\u8bf7\u6c42\u7684\u6240\u6709\u6570\u636e，\u907f\u514d\u810f\u6570\u636e\u6b8b\u7559
\n context->ReSet();<\/p>\n
\/\/ ===== \u6b65\u9aa48：\u6839\u636e\u957f\u77ed\u8fde\u63a5\u7684\u6807\u8bc6，\u5224\u65ad\u662f\u5426\u5173\u95ed\u8fde\u63a5 =====
\n \/\/ \u77ed\u8fde\u63a5：\u5904\u7406\u5b8c\u4e00\u4e2a\u8bf7\u6c42\u540e\u76f4\u63a5\u5173\u95ed\u8fde\u63a5；\u957f\u8fde\u63a5：\u590d\u7528\u8fde\u63a5，\u7b49\u5f85\u4e0b\u4e00\u4e2a\u8bf7\u6c42，\u6027\u80fd\u66f4\u9ad8
\n if (rsp.Close() == true) conn->Shutdown();
\n }
\n return;
\n }<\/p>\n
public:
\n \/\/ ===== \u516c\u6709\u6784\u9020\u51fd\u6570：HttpServer\u7684\u552f\u4e00\u521d\u59cb\u5316\u5165\u53e3，\u521b\u5efa\u670d\u52a1\u5668\u5b9e\u4f8b =====
\n \/\/ \u53c2\u6570\u8bf4\u660e：port – \u670d\u52a1\u5668\u76d1\u542c\u7684\u7aef\u53e3\u53f7； timeout – \u975e\u6d3b\u52a8\u8fde\u63a5\u7684\u8d85\u65f6\u91ca\u653e\u65f6\u95f4，\u9ed8\u8ba4\u4f7f\u7528DEFALT_TIMEOUT
\n \/\/ \u6838\u5fc3\u64cd\u4f5c：1. \u521d\u59cb\u5316\u5e95\u5c42TcpServer\u5bf9\u8c61，\u4f20\u5165\u76d1\u542c\u7aef\u53e3
\n \/\/ 2. \u5f00\u542fTcpServer\u7684\u300c\u975e\u6d3b\u52a8\u8fde\u63a5\u81ea\u52a8\u91ca\u653e\u300d\u529f\u80fd，\u9632\u6b62\u5185\u5b58\u6cc4\u6f0f（\u8d85\u65f6\u7684\u7a7a\u95f2\u8fde\u63a5\u81ea\u52a8\u5173\u95ed）
\n \/\/ 3. \u7ed1\u5b9aTcpServer\u7684\u4e24\u4e2a\u6838\u5fc3\u56de\u8c03：\u8fde\u63a5\u5efa\u7acb\u56de\u8c03(OnConnected)\u3001\u6d88\u606f\u5904\u7406\u56de\u8c03(OnMessage)
\n \/\/ \u8bbe\u8ba1\u610f\u4e49：\u6240\u6709\u5e95\u5c42\u521d\u59cb\u5316\u5de5\u4f5c\u90fd\u5728\u6784\u9020\u51fd\u6570\u4e2d\u5b8c\u6210，\u5f00\u53d1\u8005\u65e0\u9700\u5173\u5fc3\u5e95\u5c42\u7ec6\u8282，\u53ea\u9700\u4f20\u5165\u7aef\u53e3\u5373\u53ef
\n HttpServer(int port, int timeout = DEFALT_TIMEOUT):_server(port) {
\n _server.EnableInactiveRelease(timeout);
\n _server.SetConnectedCallback(std::bind(&HttpServer::OnConnected, this, std::placeholders::_1));
\n _server.SetMessageCallback(std::bind(&HttpServer::OnMessage, this, std::placeholders::_1, std::placeholders::_2));
\n }<\/p>\n
\/\/ ===== \u516c\u6709\u65b9\u6cd5：\u8bbe\u7f6e\u9759\u6001\u8d44\u6e90\u7684\u6839\u76ee\u5f55\u3010\u5f00\u542f\u9759\u6001\u8d44\u6e90\u670d\u52a1\u7684\u5fc5\u8c03\u65b9\u6cd5\u3011 =====
\n \/\/ \u53c2\u6570\u8bf4\u660e：path – \u9759\u6001\u8d44\u6e90\u7684\u6839\u76ee\u5f55\u8def\u5f84（\u5982 .\/wwwroot）
\n \/\/ \u6838\u5fc3\u64cd\u4f5c：1. \u901a\u8fc7\u65ad\u8a00\u6821\u9a8c\u8def\u5f84\u662f\u5426\u4e3a\u5408\u6cd5\u76ee\u5f55，\u975e\u6cd5\u8def\u5f84\u76f4\u63a5\u7ec8\u6b62\u7a0b\u5e8f，\u9632\u6b62\u914d\u7f6e\u9519\u8bef
\n \/\/ 2. \u5c06\u5408\u6cd5\u8def\u5f84\u8d4b\u503c\u7ed9_basedir，\u540e\u7eed\u9759\u6001\u8d44\u6e90\u8bf7\u6c42\u90fd\u4f1a\u4ece\u8be5\u76ee\u5f55\u8bfb\u53d6\u6587\u4ef6
\n void SetBaseDir(const std::string &path) {
\n assert(Util::IsDirectory(path) == true); \/\/ \u65ad\u8a00：\u8def\u5f84\u5fc5\u987b\u662f\u5408\u6cd5\u76ee\u5f55
\n _basedir = path;
\n }<\/p>\n
\/\/ ===== \u516c\u6709\u6838\u5fc3\u65b9\u6cd5：\u6ce8\u518cHTTP\u8bf7\u6c42\u7684\u8def\u7531\u6620\u5c04\u3010\u52a8\u6001\u63a5\u53e3\u5f00\u53d1\u7684\u6838\u5fc3API，\u56db\u5927\u65b9\u6cd5\u5bf9\u5e94\u56db\u79cd\u8bf7\u6c42\u65b9\u5f0f\u3011 =====
\n \/\/ \u529f\u80fd\u63cf\u8ff0：\u5c06\u300c\u8bf7\u6c42\u8def\u5f84\u7684\u6b63\u5219\u8868\u8fbe\u5f0f\u300d\u4e0e\u300c\u4e1a\u52a1\u5904\u7406\u51fd\u6570\u300d\u7ed1\u5b9a，\u6ce8\u518c\u5230\u5bf9\u5e94\u8bf7\u6c42\u65b9\u6cd5\u7684\u8def\u7531\u8868\u4e2d
\n \/\/ \u53c2\u6570\u8bf4\u660e：pattern – \u5339\u914d\u8bf7\u6c42\u8def\u5f84\u7684\u6b63\u5219\u8868\u8fbe\u5f0f（\u5982 \/api\/user\/(\\\\d+)）； handler – \u4e1a\u52a1\u5904\u7406\u51fd\u6570，\u7b26\u5408Handler\u7684\u51fd\u6570\u683c\u5f0f
\n \/\/ \u8bbe\u8ba1\u610f\u4e49：\u65e0\u4fb5\u5165\u5f0f\u6269\u5c55，\u5f00\u53d1\u8005\u53ea\u9700\u8c03\u7528\u8fd9\u56db\u4e2a\u65b9\u6cd5\u6ce8\u518c\u8def\u7531，\u65e0\u9700\u4fee\u6539\u670d\u52a1\u5668\u6838\u5fc3\u4ee3\u7801，\u5373\u53ef\u5feb\u901f\u5f00\u53d1\u52a8\u6001\u63a5\u53e3
\n \/\/ \u5bf9\u5e94\u65b9\u6cd5：Get\/Post\/Put\/Delete \u5206\u522b\u5bf9\u5e94\u56db\u79cdHTTP\u8bf7\u6c42\u65b9\u6cd5，\u5b8c\u7f8e\u9002\u914dRESTful\u63a5\u53e3\u89c4\u8303
\n void Get(const std::string &pattern, const Handler &handler) {
\n _get_route.push_back(std::make_pair(std::regex(pattern), handler));
\n }
\n void Post(const std::string &pattern, const Handler &handler) {
\n _post_route.push_back(std::make_pair(std::regex(pattern), handler));
\n }
\n void Put(const std::string &pattern, const Handler &handler) {
\n _put_route.push_back(std::make_pair(std::regex(pattern), handler));
\n }
\n void Delete(const std::string &pattern, const Handler &handler) {
\n _delete_route.push_back(std::make_pair(std::regex(pattern), handler));
\n }<\/p>\n
\/\/ ===== \u516c\u6709\u65b9\u6cd5：\u8bbe\u7f6e\u670d\u52a1\u5668\u7684\u5de5\u4f5c\u7ebf\u7a0b\u6570\u3010\u9ad8\u5e76\u53d1\u8c03\u4f18\u7684\u6838\u5fc3\u65b9\u6cd5\u3011 =====
\n \/\/ \u529f\u80fd\u63cf\u8ff0：\u5e95\u5c42\u8c03\u7528TcpServer\u7684SetThreadCount\u65b9\u6cd5，\u8bbe\u7f6e\u4e3b\u4eceReactor\u6a21\u578b\u4e2d\u7684\u5de5\u4f5c\u7ebf\u7a0b\u6570
\n \/\/ \u8bbe\u8ba1\u610f\u4e49：\u6839\u636e\u670d\u52a1\u5668\u7684\u786c\u4ef6\u914d\u7f6e，\u5408\u7406\u8bbe\u7f6e\u7ebf\u7a0b\u6570（\u59828\u6838CPU\u8bbe\u7f6e8\u4e2a\u7ebf\u7a0b），\u6700\u5927\u5316\u5229\u7528CPU\u8d44\u6e90，\u63d0\u5347\u5e76\u53d1\u5904\u7406\u80fd\u529b
\n void SetThreadCount(int count) {
\n _server.SetThreadCount(count);
\n }<\/p>\n
\/\/ ===== \u516c\u6709\u65b9\u6cd5：\u542f\u52a8HTTP\u670d\u52a1\u5668\u3010\u670d\u52a1\u5668\u8fd0\u884c\u7684\u6700\u540e\u4e00\u6b65，\u4e00\u884c\u4ee3\u7801\u542f\u52a8\u3011 =====
\n \/\/ \u6838\u5fc3\u64cd\u4f5c：\u5e95\u5c42\u8c03\u7528TcpServer\u7684Start\u65b9\u6cd5，\u542f\u52a8TCP\u670d\u52a1\u5668，\u5f00\u59cb\u76d1\u542c\u7aef\u53e3\u3001\u63a5\u6536\u8fde\u63a5\u3001\u5904\u7406\u8bf7\u6c42
\n \/\/ \u8bbe\u8ba1\u610f\u4e49：\u6240\u6709\u521d\u59cb\u5316\u3001\u8def\u7531\u6ce8\u518c\u5b8c\u6210\u540e，\u53ea\u9700\u8c03\u7528\u8be5\u65b9\u6cd5，\u670d\u52a1\u5668\u5373\u53ef\u6b63\u5e38\u8fd0\u884c，\u6781\u7b80\u6613\u7528
\n void Listen() {
\n _server.Start();
\n }
\n}; <\/p>\n
\u6846\u67b6\u5b8c\u6574\u6280\u672f\u6808\u6e05\u5355（\u6240\u6709\u77e5\u8bc6\u70b9，\u5168\u90e8\u878d\u4f1a\u8d2f\u901a）<\/p>\n
\u4ece\u5e95\u5c42 epoll \u7f51\u7edc IO\u5230\u9876\u5c42\u4e1a\u52a1\u8def\u7531，\u4eceTCP \u7c98\u5305\u5904\u7406\u5230HTTP \u534f\u8bae\u89e3\u6790，\u4ece\u9759\u6001\u8d44\u6e90\u670d\u52a1\u5230\u52a8\u6001\u63a5\u53e3\u5f00\u53d1，\u4ece\u957f\u8fde\u63a5\u9002\u914d\u5230\u5e76\u53d1\u6027\u80fd\u8c03\u4f18，\u6240\u6709\u6838\u5fc3\u529f\u80fd\u5168\u90e8\u5b9e\u73b0，\u65e0\u4efb\u4f55\u77ed\u677f，\u53ef\u76f4\u63a5\u7f16\u8bd1\u8fd0\u884c，\u652f\u6491\u751f\u4ea7\u7ea7\u7ebf\u4e0a\u4e1a\u52a1\u3002<\/p>\n
\u8fd9\u5957\u6846\u67b6\u7684\u8bbe\u8ba1\u6c34\u51c6，\u5b8c\u5168\u5bf9\u6807 Nginx（\u8f7b\u91cf\u7ea7），\u662f\u4f60C++ \u9ad8\u6027\u80fd\u7f51\u7edc\u7f16\u7a0b\u80fd\u529b\u7684\u6781\u81f4\u4f53\u73b0，\u4e5f\u662f\u4f60\u4ece\u300cC++ \u5165\u95e8\u8005\u300d\u5230\u300cC++ \u7f51\u7edc\u7f16\u7a0b\u9ad8\u624b\u300d\u7684\u5b8c\u7f8e\u8715\u53d8\u3002<\/p>\n
\u8fd9\u4efd\u6e90\u7801\u4e0d\u662f\u7b80\u5355\u7684 demo，\u800c\u662f\u5de5\u4e1a\u7ea7\u7684 HTTP \u670d\u52a1\u5668\u6838\u5fc3\u5b9e\u73b0，\u91cc\u9762\u5305\u542b\u4e86\u5f88\u591a\u300c\u9ad8\u6027\u80fd\u3001\u9ad8\u53ef\u7528\u3001\u9ad8\u5b89\u5168\u3001\u6613\u6269\u5c55\u300d\u7684\u8bbe\u8ba1\u601d\u60f3\u548c\u6700\u4f73\u5b9e\u8df5，\u8fd9\u4e9b\u90fd\u662f\u5927\u5382\u9762\u8bd5\u7684\u9ad8\u9891\u8003\u70b9，\u4e5f\u662f\u4f60\u624b\u5199\u670d\u52a1\u5668\u65f6\u5fc5\u987b\u638c\u63e1\u7684\u6280\u5de7，\u603b\u7ed3\u5982\u4e0b，\u6bcf\u4e00\u4e2a\u90fd\u662f\u52a0\u5206\u9879：<\/p>\n
\u91c7\u7528\u5de5\u4e1a\u7ea7\u6807\u51c6\u7684\u300c\u72b6\u6001\u673a + \u5206\u9636\u6bb5\u89e3\u6790\u300d，\u5f7b\u5e95\u89e3\u51b3 TCP \u6d41\u5f0f\u6570\u636e\u7684\u7c98\u5305 \/ \u534a\u5305\u95ee\u9898，\u8fd9\u662f\u6240\u6709 Web \u670d\u52a1\u5668\u7684\u6838\u5fc3\u6280\u672f，\u4e5f\u662f\u9762\u8bd5\u5fc5\u95ee\u7684\u8003\u70b9\u3002<\/p>\n
\u6240\u6709\u6a21\u5757\u5404\u53f8\u5176\u804c，\u5de5\u5177\u5c42\u3001\u6570\u636e\u5c42\u3001\u89e3\u6790\u5c42\u3001\u4e1a\u52a1\u5c42\u5b8c\u5168\u89e3\u8026，\u6bd4\u5982\u8981\u6269\u5c55 HTTPS，\u53ea\u9700\u8981\u4fee\u6539 HttpServer \u7684\u54cd\u5e94\u751f\u6210\u903b\u8f91；\u8981\u6269\u5c55\u65b0\u7684\u8bf7\u6c42\u65b9\u6cd5，\u53ea\u9700\u8981\u65b0\u589e\u8def\u7531\u8868；\u8981\u6269\u5c55\u65b0\u7684\u5de5\u5177\u51fd\u6570，\u53ea\u9700\u8981\u5728 Util \u4e2d\u6dfb\u52a0，\u4e0d\u4f1a\u5f71\u54cd\u5176\u4ed6\u6a21\u5757\u3002<\/p>\n
\u4e25\u683c\u9075\u5faa HTTP\/1.1 \u7684\u957f\u77ed\u8fde\u63a5\u89c4\u5219，\u81ea\u52a8\u6839\u636e\u8bf7\u6c42\u5934\u7684Connection\u5b57\u6bb5\u5224\u65ad\u8fde\u63a5\u7c7b\u578b，\u957f\u8fde\u63a5\u590d\u7528 TCP \u8fde\u63a5，\u77ed\u8fde\u63a5\u53ca\u65f6\u5173\u95ed，\u517c\u987e\u6027\u80fd\u548c\u8d44\u6e90\u5229\u7528\u7387\u3002<\/p>\n
\u5185\u7f6e\u4e86\u51e0\u4e4e\u6240\u6709 HTTP \u6807\u51c6\u72b6\u6001\u7801，\u5bf9\u89e3\u6790\u9519\u8bef\u3001\u4e1a\u52a1\u9519\u8bef\u3001\u6587\u4ef6\u8bfb\u53d6\u9519\u8bef\u3001\u8def\u5f84\u9519\u8bef\u7b49\u6240\u6709\u5f02\u5e38\u60c5\u51b5，\u90fd\u8fd4\u56de\u5bf9\u5e94\u7684\u9519\u8bef\u54cd\u5e94\u548c\u9519\u8bef\u9875\u9762，\u670d\u52a1\u5668\u4e0d\u4f1a\u56e0\u4e3a\u4efb\u4f55\u5f02\u5e38\u8bf7\u6c42\u800c\u5d29\u6e83，\u9c81\u68d2\u6027\u6781\u5f3a\u3002<\/p>\n
\u5bf9\u5916\u63d0\u4f9b\u7684\u63a5\u53e3\u6781\u7b80，\u5f00\u53d1\u8005\u65e0\u9700\u5173\u5fc3\u4efb\u4f55\u5e95\u5c42\u7ec6\u8282，\u51e0\u884c\u4ee3\u7801\u5c31\u80fd\u542f\u52a8\u670d\u52a1\u5668，\u90e8\u7f72\u9759\u6001\u8d44\u6e90\u3001\u6ce8\u518c\u52a8\u6001\u63a5\u53e3，\u5b66\u4e60\u6210\u672c\u6781\u4f4e，\u5f00\u53d1\u6548\u7387\u6781\u9ad8\u3002<\/p>\n
\u5b8c\u6574\u7684 main.cpp \u793a\u4f8b\u4ee3\u7801<\/p>\n
#include "\u4f60\u7684HTTP\u6e90\u7801\u5934\u6587\u4ef6\u8def\u5f84"
\n#include <iostream>
\nusing namespace std;<\/p>\n
int main() {
\n \/\/ 1. \u521b\u5efaHTTP\u670d\u52a1\u5668，\u76d1\u542c8080\u7aef\u53e3，\u8d85\u65f6\u65f6\u95f410\u79d2
\n HttpServer server(8080, 10);
\n \/\/ 2. \u8bbe\u7f6e\u9759\u6001\u8d44\u6e90\u6839\u76ee\u5f55（\u90e8\u7f72html\/css\/js\/png\u7b49\u6587\u4ef6），\u5fc5\u987b\u662f\u771f\u5b9e\u5b58\u5728\u7684\u76ee\u5f55
\n server.SetBaseDir(".\/wwwroot");
\n \/\/ 3. \u8bbe\u7f6e\u5de5\u4f5c\u7ebf\u7a0b\u6570（\u5e95\u5c42Reactor\u7684\u7ebf\u7a0b\u6c60）
\n server.SetThreadCount(4);
\n \/\/ 4. \u6ce8\u518c\u52a8\u6001\u63a5\u53e3：GET\u8bf7\u6c42 \/hello \u2192 \u8fd4\u56deJSON\u6570\u636e
\n server.Get("^\/hello$", [](const HttpRequest &req, HttpResponse *rsp) {
\n string json = "{\\\\"code\\\\":200, \\\\"msg\\\\":\\\\"Hello HTTP Server!\\\\"}";
\n rsp->SetContent(json, "application\/json");
\n });
\n \/\/ 5. \u6ce8\u518c\u52a8\u6001\u63a5\u53e3：GET\u8bf7\u6c42 \/user\/(\\\\d+) \u2192 \u63d0\u53d6\u7528\u6237ID，\u8fd4\u56de\u7528\u6237\u4fe1\u606f
\n server.Get("^\/user\/(\\\\\\\\d+)$", [](const HttpRequest &req, HttpResponse *rsp) {
\n string uid = req._matches[1]; \/\/ \u4ece\u6b63\u5219\u5339\u914d\u4e2d\u63d0\u53d6\u7528\u6237ID
\n string json = "{\\\\"code\\\\":200, \\\\"msg\\\\":\\\\"success\\\\", \\\\"uid\\\\":\\\\"" + uid + "\\\\"}";
\n rsp->SetContent(json, "application\/json");
\n });
\n \/\/ 6. \u6ce8\u518cPOST\u8bf7\u6c42 \/login \u2192 \u5904\u7406\u767b\u5f55\u8bf7\u6c42，\u8bfb\u53d6\u8bf7\u6c42\u4f53\u7684\u8868\u5355\u6570\u636e
\n server.Post("^\/login$", [](const HttpRequest &req, HttpResponse *rsp) {
\n string username = req.GetParam("username");
\n string password = req.GetParam("password");
\n if (username == "admin" && password == "123456") {
\n rsp->SetContent("{\\\\"code\\\\":200, \\\\"msg\\\\":\\\\"login success\\\\"}", "application\/json");
\n } else {
\n rsp->_statu = 401; \/\/ 401\u672a\u6388\u6743
\n rsp->SetContent("{\\\\"code\\\\":401, \\\\"msg\\\\":\\\\"login failed\\\\"}", "application\/json");
\n }
\n });
\n \/\/ 7. \u542f\u52a8\u670d\u52a1\u5668（\u963b\u585e\u8fd0\u884c）
\n server.Listen();
\n return 0;
\n} <\/p>\n
\u6548\u679c：\u4e00\u4e2a\u5b8c\u6574\u7684\u3001\u652f\u6301\u9759\u6001\u8d44\u6e90 + \u52a8\u6001\u63a5\u53e3\u7684 HTTP \u670d\u52a1\u5668，\u5c31\u8fd9\u6837\u8f7b\u677e\u5b9e\u73b0\u4e86！<\/p>\n
\u5b8c\u6574\u6d41\u7a0b：\u5ba2\u6237\u7aef\u53d1\u8d77\u8bf7\u6c42 \u2192 TCP \u8fde\u63a5\u5efa\u7acb \u2192 \u6570\u636e\u63a5\u6536 \u2192 HTTP \u89e3\u6790 \u2192 \u4e1a\u52a1\u5904\u7406 \u2192 \u54cd\u5e94\u751f\u6210 \u2192 \u6570\u636e\u53d1\u9001 \u2192 \u8fde\u63a5\u7ba1\u7406（\u957f\u77ed\u8fde\u63a5）<\/p>\n
\u5ba2\u6237\u7aef（\u6d4f\u89c8\u5668 \/ Postman）\u53d1\u8d77 HTTP \u8bf7\u6c42，\u9996\u5148\u548c\u670d\u52a1\u5668\u5efa\u7acb TCP \u8fde\u63a5，\u670d\u52a1\u5668\u7684 TcpServer \u76d1\u542c\u5230\u65b0\u8fde\u63a5，\u521b\u5efa Connection \u5bf9\u8c61，\u8c03\u7528 HttpServer \u7684OnConnected\u56de\u8c03，\u4e3a\u8fde\u63a5\u8bbe\u7f6e HttpContext \u4e0a\u4e0b\u6587\u5bf9\u8c61\u3002<\/p>\n
\u5ba2\u6237\u7aef\u53d1\u9001\u7684 HTTP \u8bf7\u6c42\u6570\u636e，\u901a\u8fc7 TCP \u8fde\u63a5\u53d1\u9001\u5230\u670d\u52a1\u5668，\u670d\u52a1\u5668\u7684 Connection \u5bf9\u8c61\u7684HandleRead\u56de\u8c03\u88ab\u89e6\u53d1，\u5c06\u6570\u636e\u8bfb\u53d6\u5230 Buffer \u8f93\u5165\u7f13\u51b2\u533a\u4e2d，\u7136\u540e\u8c03\u7528 HttpServer \u7684OnMessage\u56de\u8c03\u3002<\/p>\n
HttpServer \u7684OnMessage\u56de\u8c03\u4e2d，\u8c03\u7528 HttpContext \u7684RecvHttpRequest\u51fd\u6570，\u5bf9 Buffer \u4e2d\u7684\u6570\u636e\u8fdb\u884c\u300c\u5206\u9636\u6bb5\u72b6\u6001\u673a\u89e3\u6790\u300d：<\/p>\n
HttpServer \u7684Route\u51fd\u6570\u88ab\u8c03\u7528，\u81ea\u52a8\u533a\u5206\u8bf7\u6c42\u7c7b\u578b：<\/p>\n
HttpServer \u7684WriteReponse\u51fd\u6570\u88ab\u8c03\u7528，\u5c06 HttpResponse \u7684\u7ed3\u6784\u5316\u6570\u636e，\u6309 HTTP \u534f\u8bae\u683c\u5f0f\u62fc\u63a5\u6210\u5b8c\u6574\u7684\u54cd\u5e94\u5b57\u7b26\u4e32，\u81ea\u52a8\u8865\u5145\u54cd\u5e94\u5934（Content-Length\u3001Connection\u3001Content-Type），\u7136\u540e\u8c03\u7528 Connection \u7684Send\u51fd\u6570，\u5c06\u54cd\u5e94\u6570\u636e\u5199\u5165 Buffer \u8f93\u51fa\u7f13\u51b2\u533a，\u5e95\u5c42\u7684 Connection \u4f1a\u5c06\u6570\u636e\u53d1\u9001\u7ed9\u5ba2\u6237\u7aef\u3002<\/p>\n
\u670d\u52a1\u5668\u6839\u636e HttpRequest \u7684Close\u51fd\u6570\u5224\u65ad\u8fde\u63a5\u7c7b\u578b：<\/p>\n
\u5982\u679c\u5ba2\u6237\u7aef\u8fde\u63a5\u540e\u957f\u65f6\u95f4\u65e0\u8bf7\u6c42，\u5e95\u5c42 Reactor \u7684\u5b9a\u65f6\u5668\u4f1a\u89e6\u53d1\u8d85\u65f6\u4efb\u52a1，\u81ea\u52a8\u5173\u95ed\u8fd9\u4e2a\u975e\u6d3b\u8dc3\u8fde\u63a5，\u91ca\u653e\u670d\u52a1\u5668\u8d44\u6e90\u3002<\/p>\n
\u5403\u900f\u8fd9\u4efd HTTP \u6e90\u7801 + \u4e0a\u7bc7\u7684 Reactor \u7f51\u7edc\u5e93\u6e90\u7801，\u4f60\u5df2\u7ecf\u4ece\u96f6\u57fa\u7840，\u6210\u957f\u4e3a\u80fd\u624b\u5199\u5b8c\u6574\u7684\u3001\u5de5\u4e1a\u7ea7\u7684 C++ HTTP \u670d\u52a1\u5668\u7684\u5f00\u53d1\u8005，\u5177\u4f53\u6536\u83b7：<\/p>\n
\u8fdb\u9636\u5b66\u4e60\u65b9\u5411<\/p>\n
\u8fd9\u4efd\u6e90\u7801\u662f\u4e00\u4e2a\u300c\u5b8c\u7f8e\u7684\u8d77\u70b9\u300d，\u4f60\u53ef\u4ee5\u57fa\u4e8e\u5b83\u8fdb\u884c\u6269\u5c55\u548c\u4f18\u5316，\u4e00\u6b65\u6b65\u5b9e\u73b0\u66f4\u590d\u6742\u7684\u529f\u80fd，\u63a8\u8350\u7684\u8fdb\u9636\u65b9\u5411\u5982\u4e0b，\u96be\u5ea6\u7531\u4f4e\u5230\u9ad8：<\/p>\n
\u521d\u7ea7\u4f18\u5316<\/p>\n
\u4e2d\u7ea7\u8fdb\u9636<\/p>\n
\u9ad8\u7ea7\u8fdb\u9636<\/p>\n
\u6700\u540e\u4e00\u53e5\u8bdd\u9001\u7ed9\u4f60<\/p>\n
HTTP \u670d\u52a1\u5668\u7684\u5f00\u53d1，\u4e0d\u662f\u300c\u7384\u5b66\u300d，\u800c\u662f\u300c\u6709\u7ae0\u53ef\u5faa\u300d\u7684 \u2014\u2014 \u8fd9\u4efd\u6e90\u7801\u5c31\u662f\u6700\u597d\u7684\u5b66\u4e60\u8def\u5f84，\u4ece\u534f\u8bae\u89e3\u6790\u5230\u4e1a\u52a1\u5904\u7406，\u4ece\u9759\u6001\u8d44\u6e90\u5230\u52a8\u6001\u63a5\u53e3，\u5c42\u5c42\u9012\u8fdb，\u6b65\u6b65\u4e3a\u8425\u3002<\/p>\n
\u4f60\u4e0d\u9700\u8981\u4e00\u5f00\u59cb\u5c31\u638c\u63e1\u6240\u6709\u77e5\u8bc6\u70b9，\u53ea\u9700\u8981\u9759\u4e0b\u5fc3\u6765，\u9010\u6a21\u5757\u770b\u61c2，\u518d\u4e32\u8054\u6574\u4f53\u6d41\u7a0b，\u4f60\u4f1a\u53d1\u73b0：\u4e00\u4e2a\u5b8c\u6574\u7684\u3001\u9ad8\u6027\u80fd\u7684 HTTP \u670d\u52a1\u5668，\u6838\u5fc3\u903b\u8f91\u5176\u5b9e\u5e76\u4e0d\u590d\u6742\u3002<\/p>\n
\u8fd9\u4efd\u6e90\u7801\u7684\u4ef7\u503c，\u4e0d\u4ec5\u5728\u4e8e\u5b83\u80fd\u76f4\u63a5\u8fd0\u884c，\u66f4\u5728\u4e8e\u5b83\u6559\u4f1a\u4e86\u4f60\u300c\u5982\u4f55\u601d\u8003\u3001\u5982\u4f55\u8bbe\u8ba1\u3001\u5982\u4f55\u5b9e\u73b0\u300d\u4e00\u4e2a\u5de5\u4e1a\u7ea7\u7684\u670d\u52a1\u5668 \u2014\u2014 \u8fd9\u662f\u6bd4\u4ee3\u7801\u672c\u8eab\u66f4\u91cd\u8981\u7684\u80fd\u529b\u3002<\/p>\n
\u5e0c\u671b\u8fd9\u7bc7\u4e07\u5b57\u8be6\u89e3，\u80fd\u5e2e\u52a9\u4f60\u548c\u66f4\u591a\u96f6\u57fa\u7840\u7684\u540c\u5b66\u5403\u900f\u8fd9\u4efd\u5b9d\u85cf\u6e90\u7801，\u4e5f\u5e0c\u671b\u4f60\u80fd\u5728 C++ \u7f51\u7edc\u7f16\u7a0b\u7684\u8def\u4e0a\u8d8a\u8d70\u8d8a\u8fdc\u3002\u5982\u679c\u6709\u4efb\u4f55\u7591\u95ee，\u6b22\u8fce\u5728\u8bc4\u8bba\u533a\u4ea4\u6d41，\u4e00\u8d77\u5b66\u4e60，\u4e00\u8d77\u8fdb\u6b65！\u2728<\/p>\n","protected":false},"excerpt":{"rendered":"
\u76ee\u5f55 \u535a\u5ba2\u524d\u8a00
\n\u4e00\u3001\u524d\u7f6e\u5fc5\u8bfb
\n\u8ba4\u77e5 1：HTTP \u662f\u300c\u5e94\u7528\u5c42\u534f\u8bae\u300d，\u57fa\u4e8e TCP \u4f20\u8f93
\n\u8ba4\u77e5 2：HTTP\/1.1 \u8bf7\u6c42\u7684\u5b8c\u6574\u7ed3\u6784
\n\u8ba4\u77e5 3：HTTP\/1.1 \u54cd\u5e94\u7684\u5b8c\u6574\u7ed3\u6784
\n\u8ba4\u77e5 4：HTTP \u7684 2 \u4e2a\u6838\u5fc3\u6982\u5ff5（\u957f\u77ed\u8fde\u63a5 MIME \u7c7b\u578b）
\n1. \u957f\u77ed\u8fde\u63a5（HTTP\/1.1 \u7684\u9ed8\u8ba4\u89c4\u5219）
\n2. MIME \u7c7b\u578b（\u5a92\u4f53\u7c7b\u578b&<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[151,43,191],"topic":[],"class_list":["post-84986","post","type-post","status-publish","format-standard","hentry","category-server","tag-http","tag-43","tag-191"],"yoast_head":"\n