TCP服务器代码

这两天在看网络编程，写了点程序，发给大家看看.

首先看看流程：

然后直接上代码：
服务器端，如果想了解客户端的代码请查看
https://blog.csdn.net/u011394598/article/details/83110068

#include <Windows.h>
#include <iostream>
using namespace std;

#define SERVER_IP "192.168.0.168"		//本地TCP服务器IP
#define SERVER_PORT 60008				//本地TCP服务器端口


int  main()
{
	//1、 加加载Winsock DLL的相应版本
	try
	{
		WORD sockVersion = MAKEWORD(2, 2);
		WSADATA wsaData;
		int result = WSAStartup(sockVersion, &wsaData);
		if (0 != result)
		{
			return false;
		}

		if (LOBYTE(wsaData.wVersion) != 2 || HIBYTE(wsaData.wVersion) != 2)
		{
			WSACleanup();
			return false;
		}
	}
	catch (...)
	{
		return false;
	}

	char buf[] = "Server: hello, I am a server.....";

	//2、创建用于监听的套接字  
	SOCKET sockSrv = NULL;
	try
	{
		sockSrv = socket(AF_INET, SOCK_STREAM, 0);

		if (sockSrv == INVALID_SOCKET)
		{
			return 0;
		}
	}
	catch (...)
	{
		return 0;
	}

	SOCKADDR_IN addrSrv;
	addrSrv.sin_family = AF_INET;
	addrSrv.sin_port = htons(SERVER_PORT); //1024以上的端口号  
	addrSrv.sin_addr.S_un.S_addr = inet_addr("192.168.0.168");

	//3、套接字绑定地址
	int retVal = bind(sockSrv, (LPSOCKADDR)&addrSrv, sizeof(SOCKADDR_IN));
	if (retVal == SOCKET_ERROR){
		printf("Failed bind:%d\n", WSAGetLastError());
		return 0;
	}

	//4、 监听
	if (listen(sockSrv, 10) == SOCKET_ERROR){
		printf("Listen failed:%d", WSAGetLastError());
		return 0;
	}

	SOCKADDR_IN addrClient;
	int len = sizeof(SOCKADDR);

	while (1)
	{
		//5、 等待客户请求到来   通过对accpet函数的调用，可为待决连接队列中的第一个连接请求提供服务
		SOCKET sockConn = accept(sockSrv, (SOCKADDR *)&addrClient, &len);
		if (sockConn == SOCKET_ERROR){
			printf("Accept failed:%d", WSAGetLastError());
			break;
		}
		printf("Accept client IP:[%s]\n", inet_ntoa(addrClient.sin_addr));
		
		//6、发送数据  
		int iSend = send(sockConn, buf, sizeof(buf), 0);
		if (iSend == SOCKET_ERROR){
			printf("send failed");
			break;
		}
		char recvBuf[100];
		memset(recvBuf, 0, sizeof(recvBuf));
		//      //接收数据  
		recv(sockConn, recvBuf, sizeof(recvBuf), 0);
		printf("recv: %s\n", recvBuf);
		
		closesocket(sockConn);
	}

	closesocket(sockSrv);
	WSACleanup();
}