Windows;Socket;编程（转载）

Windows下Socket编程主要包括以下几部分：
服务端
   1、初始化Windows Socket库。
   2、创建Socket。
   3、绑定Socket。
   4、监听。
   5、Accept。
   6、接收、发送数据。

客户端
   1、初始化Windows Socket库。
   2、创建Socket。
   3、连接Socket。
   4、接收、发送数据。

服务端每接收到一个客户端的Socket,则创建一个线程。满足一个服务端连接多个客户端。

 

客户端：

//Client.cpp
#include<iostream>
#include<Windows.h>

usingnamespacestd;

#define  PORT4000
#define IP_ADDRESS "115.158.79.239"


intmain(intargc, char* argv[])
{
   WSADATA  Ws;
   SOCKET CientSocket;
   struct sockaddr_in ServerAddr;
   int Ret = 0;
   int AddrLen = 0;
   HANDLE hThread = NULL;
   char SendBuffer[MAX_PATH];
   
   //Init WindowsSocket
   if ( WSAStartup(MAKEWORD(2,2),&Ws) != 0 )
   {
      cout<<"InitWindows Socket Failed::"<<GetLastError()<<endl;
      return-1;
   }
   
   //CreateSocket
   CientSocket = socket(AF_INET,SOCK_STREAM,IPPROTO_TCP);
   if ( CientSocket == INVALID_SOCKET )
   {
      cout<<"CreateSocket Failed::"<<GetLastError()<<endl;
      return-1;
   }
   
   ServerAddr.sin_family= AF_INET;
   ServerAddr.sin_addr.s_addr= inet_addr(IP_ADDRESS);
   ServerAddr.sin_port= htons(PORT);
   memset(ServerAddr.sin_zero,0x00, 8);
   
   Ret =connect(CientSocket,(structsockaddr*)&ServerAddr,sizeof(ServerAddr));
   if ( Ret == SOCKET_ERROR )
   {
      cout<<"ConnectError::"<<GetLastError()<<endl;
      return-1;
   }
   else
   {
      cout<<"连接成功!"<<endl;
   }
   
   while (true)
   {
      cin.getline(SendBuffer,sizeof(SendBuffer));
      Ret=send(CientSocket,SendBuffer, (int)strlen(SendBuffer),0);
      if (Ret == SOCKET_ERROR )
      {
         cout<<"SendInfo Error::"<<GetLastError()<<endl;
         break;
      }
   }
   
   closesocket(CientSocket);
   WSACleanup();
   
   return 0;
}

服务器端：

//Server.cpp
#include<iostream.h>
#include<Windows.h>


#define  PORT4000
#define IP_ADDRESS "115.158.79.239"

DWORD WINAPIClientThread(LPVOIDlpParameter)
{
   SOCKET CientSocket = (SOCKET)lpParameter;
   int Ret = 0;
   char RecvBuffer[MAX_PATH];
   
   while (true)
   {
      memset(RecvBuffer,0x00, sizeof(RecvBuffer));
      Ret=recv(CientSocket,RecvBuffer,MAX_PATH, 0);
      if (Ret == 0 || Ret ==SOCKET_ERROR )
      {
         cout<<"客户端退出!"<<endl;
         break;
      }
      cout<<"接收到客户信息为:"<<RecvBuffer<<endl;
   }
   
   return 0;
}

intmain(intargc, char* argv[])
{
   WSADATA  Ws;
   SOCKET ServerSocket, CientSocket;
   struct sockaddr_in LocalAddr,ClientAddr;
   int Ret = 0;
   int AddrLen = 0;
   HANDLE hThread = NULL;
   
   //Init WindowsSocket
   if ( WSAStartup(MAKEWORD(2,2),&Ws) != 0 )
   {
      cout<<"InitWindows Socket Failed::"<<GetLastError()<<endl;
      return-1;
   }
   
   //CreateSocket
   ServerSocket = socket(AF_INET,SOCK_STREAM,IPPROTO_TCP);
   if ( ServerSocket == INVALID_SOCKET )
   {
      cout<<"CreateSocket Failed::"<<GetLastError()<<endl;
      return-1;
   }
   
   LocalAddr.sin_family= AF_INET;
   LocalAddr.sin_addr.s_addr= inet_addr(IP_ADDRESS);
   LocalAddr.sin_port= htons(PORT);
   memset(LocalAddr.sin_zero,0x00, 8);
   
   //BindSocket
   Ret =bind(ServerSocket, (structsockaddr*)&LocalAddr,sizeof(LocalAddr));
   if ( Ret != 0 )
   {
      cout<<"BindSocket Failed::"<<GetLastError()<<endl;
      return-1;
   }
   
   Ret =listen(ServerSocket,10);
   if ( Ret != 0 )
   {
      cout<<"listenSocket Failed::"<<GetLastError()<<endl;
      return-1;
   }
   
   cout<<"服务端已经启动"<<endl;
   
   while (true)
   {
      AddrLen=sizeof(ClientAddr);
      CientSocket = accept(ServerSocket, (structsockaddr*)&ClientAddr,&AddrLen);
      if (CientSocket ==INVALID_SOCKET )
      {
         cout<<"AcceptFailed::"<<GetLastError()<<endl;
         break;
      }
      
      cout<<"客户端连接::"<<inet_ntoa(ClientAddr.sin_addr)<<":"<<ClientAddr.sin_port<<endl;
      
      hThread=CreateThread(NULL,0, ClientThread, (LPVOID)CientSocket,0, NULL);

      if (hThread == NULL )
      {
         cout<<"CreateThread Failed!"<<endl;
         break;
      }

      CloseHandle(hThread);
   }
   
   closesocket(ServerSocket);
   closesocket(CientSocket);
   WSACleanup();
   
   return 0;
}