SOCKET编程入门求指导

2016-07-08 05:41:14 171 阅读 AI 写同款 · GEO 优化AI 选题数据监测一键分发 ›

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在网上搜到的 简单的 C++ SOCKET编程 ---基于TCP/IP协议 ，照着写下来，客户端发消息服务端没反应，也不知道连没连到服务器，不明真相。
复制代码有点多，不过为了知道具体原因我还是硬着头皮粘贴上来吧
客户端：

void Main::CreateSocket(void)

{

	WORD myVersionRequest = MAKEWORD(2, 2);

	WSADATA wsaData;

	int errorCode = WSAStartup(myVersionRequest, &wsaData);

	if(errorCode)

	{

		printf("Socket Startup Failed: %d\n", GetLastError());

	}

	else if(LOBYTE(wsaData.wVersion)!=1 || HIBYTE(wsaData.wVersion)!=1)

	{

		printf("Socket Startup Failed: %d\n", GetLastError());

		WSACleanup();

	}

	else

	{

		printf("Socket Startup successed\n");

	}

}



void Main::Connect(void)

{

	sockClient=socket(AF_INET, SOCK_STREAM, 0);

	SOCKADDR_IN addr;

	addr.sin_family = AF_INET;

	addr.sin_addr.S_un.S_addr = inet_addr("127.0.0.1");

	addr.sin_port = htons(6000);



	connect(sockClient, (SOCKADDR*)&addr, sizeof(SOCKADDR));

	printf("Connected to server");

}



void Main::Send(char* str)

{

	send(sockClient, str, strlen(str)+1,0);

	printf("Sending \"%s\"...", str);

}



void Main::Disconnect(void)

{

	closesocket(sockClient);

	printf("Disconnected from server");

}



void Main::DestroySocket(void)

{

	WSACleanup();

	printf("Socket Destroyed\n");

}

调用方法：

int _tmain(int argc, _TCHAR* argv[])

{

	Main client;

	client.CreateSocket();

	client.Connect();

	while(1)

	{

		printf("\nEnter Message:\n");

		char msg[100];

		std::cin.getline(msg, 100);

		client.Send(msg);

	}

	client.Disconnect();

	client.DestroySocket();

	return 0;

}

服务器：

void Main::CreateSocket(void)

{

	WORD myVersionRequest = MAKEWORD(2, 2);

	WSADATA wsaData;

	int errorCode = WSAStartup(myVersionRequest, &wsaData);

	if(errorCode || LOBYTE(wsaData.wVersion)!=1 || HIBYTE(wsaData.wVersion)!=1){

		printf("Socket Startup Failed: %d\n", GetLastError());

	}

	printf("Socket Startup successed\n");

}



void Main::StartListen(void)

{

	SOCKET serverSocket = socket(AF_INET, SOCK_STREAM, 0);

	SOCKADDR_IN addr;

	addr.sin_family = AF_INET;

	addr.sin_addr.S_un.S_addr = htonl(INADDR_ANY);

	addr.sin_port = htons(6000);

	bind(serverSocket, (SOCKADDR*)&addr, sizeof(SOCKADDR));

	listen(serverSocket, 1);

	printf("Listening...\n");

	listening = true;

	SOCKADDR_IN clientAddr;

	int len = sizeof(SOCKADDR);

	while(listening)

	{

		SOCKET sockConn = accept(serverSocket, (SOCKADDR*)&clientAddr, &len);

		char recvBuffer[100];

		recv(sockConn, recvBuffer, strlen(recvBuffer)+1, 0);

		printf("Received From Client: %s\n", recvBuffer);

		closesocket(sockConn);

	}

}



void Main::StopListen(void)

{

	listening = false;

}



void Main::DestroySocket(void)

{

	WSACleanup();

	printf("Socket Destroyed\n");

}

调用方法：

int _tmain(int argc, _TCHAR* argv[])

{

	Main server;

	server.CreateSocket();

	server.StartListen();

	server.StopListen();

	server.DestroySocket();



	return 0;

}

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