C#客户端向服务端（vc做的）做Get请求，但vc这总是accept两个请求

妙笔花生 2017-06-16 03:36:10

自己做了一个C++Http服务器，处理http的get请求。
客户端是C#做的。现在的情况是C#发起一个请求，C++中都能accept到两个连接。这是为什么呢？有懂C++和C#和网络编程的吗
http服务端代码

do 

	{

	

		//初始化WSA

		WORD sockVersion = MAKEWORD(2, 2);

		WSADATA wsaData;

		cResult.iResult = WSAStartup(sockVersion, &wsaData);

		if (cResult.iResult)

		{

			cResult.strErr = "WSAStartup失败";

			break;

		}

		//创建套接字

		SOCKET slisten = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP);

		if (slisten == INVALID_SOCKET)

		{

			cResult.iResult = -1;

			cResult.strErr = "创建套接字失败";

			break;

		}



		//绑定IP和端口

		sockaddr_in sin;

		sin.sin_family = AF_INET;

		int iPort = g_cfgManger.GetListenPort();

		if (iPort < 0){

			cResult.iResult = -1;

			cResult.strErr = "端口号不合法";

			break;

		}

		sin.sin_port = htons(iPort);

		sin.sin_addr.S_un.S_addr = INADDR_ANY;

		if (bind(slisten, (LPSOCKADDR)&sin, sizeof(sin)) == SOCKET_ERROR)

		{

			cResult.iResult = -1;

			cResult.strErr = "绑定IP和端口失败";

			break;

		}

		//开始监听

		if (listen(slisten, 1) == SOCKET_ERROR)

		{

			cResult.iResult = -1;

			cResult.strErr = "监听出错";

			break;

		}

		//循环接收数据

		SOCKET sClient;

		sockaddr_in remoteAddr;

		int nAddrlen = sizeof(remoteAddr);

		char revData[255];

		int iCntText = 0;

		while (true)

		{

			iCntText++;

			printf("监听中\n");

			sClient = accept(slisten, (SOCKADDR *)&remoteAddr, &nAddrlen);

			if (sClient == INVALID_SOCKET)

			{

				//printf("accept error !");

				printf("监听到错误socket");

				continue;

			}

			

			//printf("接受到一个连接：%s \r\n", inet_ntoa(remoteAddr.sin_addr));//会报错	error C4996: 'inet_ntoa': Use inet_ntop() or InetNtop() instead or define _WINSOCK_DEPRECATED_NO_WARNINGS to disable deprecated API warnings	d:\linhs\项目\多线程接收文件服务\myhttpserver\myhttpserver\myhttpserver.cpp	115	1	MyHttpserver

			printf("接受第%d个连接：%s \r\n",iCntText, inet_ntoa(remoteAddr.sin_addr));

			char acBuf[1024] = { 0 };

			recv(sClient, acBuf, 1024, NULL);

			DWORD dwThreadId;

			newCnctThdParam * cnctParam = new newCnctThdParam;

			cnctParam->OneSocket = sClient;

			cnctParam->strRecvData = acBuf;

			cnctParam->pClass = this;

			CreateThread(NULL, NULL, NewConnectThread, cnctParam, NULL, &dwThreadId);

			

		}



		closesocket(slisten);

		WSACleanup();

	} while (0);

C#中的http请求代码

                string Url = "http://127.0.0.1/AskforTransport?fileSize=1111";

                //string Url = "http://www.ltaaa.com/";

                HttpWebRequest request = (HttpWebRequest)WebRequest.Create(Url);

                request.Method = "GET";

                request.ContentType = "text/html;charset=UTF-8";

                request.KeepAlive = false;

                HttpWebResponse response ;

               try

               {

                   response = (HttpWebResponse)request.GetResponse();

               }

               catch (System.Exception ex)

               {

                   MessageBox.Show(ex.ToString());

               }

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