tcpclient.cpp

用面向连接的TCP实现学生信息的管理

#include <Winsock2.h>
#include <stdio.h>
#include <iostream>
using namespace std;

void InitiveConnect()
{
	WORD wVersionRequested;
	WSADATA wsaData;
	int err;
	
	wVersionRequested = MAKEWORD(2, 2);
	
	err = WSAStartup( wVersionRequested, &wsaData );
	if ( err != 0 ) 
	{
		return;
	}
	if ( LOBYTE( wsaData.wVersion ) != 2 ||
        HIBYTE( wsaData.wVersion ) != 2 ) 
	{
		WSACleanup( );
		return; 
	}
	SOCKET sockClient=socket(AF_INET,SOCK_STREAM,0);
	SOCKADDR_IN addrSrv;
	addrSrv.sin_addr.S_un.S_addr=inet_addr("127.0.0.1");
	addrSrv.sin_family=AF_INET;
	addrSrv.sin_port=htons(6000);
	connect(sockClient,(SOCKADDR*)&addrSrv,sizeof(SOCKADDR));
	while(true)
	{
		cout<<"please enter the request:\ncommand (Find/Inser/Delete,studentNo.):"; 
		char sendBuf[100];
		scanf("%s",sendBuf);
		send(sockClient,sendBuf,strlen(sendBuf)+1,0);
		char recvBuf[100];
		recv(sockClient,recvBuf,100,0);
		
		if(recvBuf[0]=='q'||recvBuf[0]=='Q')
		{
			closesocket(sockClient);
			WSACleanup();
		}
		else
			printf("%s\n",recvBuf);
	}
}

void main()
{
	InitiveConnect();
}