ASP.NET基于TCP的网络通信程序演示

本程序仅仅是为了演示基于TCP协议TCP协议的网络通信程序的写法采用阻塞模式代码简单

服务器端代码

#include Winsockh

#include stdioh

void main()

{

WORD wVersionRequested;

WSADATA wsaData;

int err;

wVersionRequested = MAKEWORD();

err = WSAStartup( wVersionRequested &wsaData );

if ( err != )

{

return;

}

if ( LOBYTE( wsaDatawVersion ) != ||

HIBYTE( wsaDatawVersion ) != )

{

WSACleanup( );

return;

}

SOCKET sockSrv=socket(AF_INETSOCK_STREAM);

SOCKADDR_IN addrSrv;

addrSrvsin_addrS_unS_addr=htonl(INADDR_ANY);

addrSrvsin_family=AF_INET;

addrSrvsin_port=htons();

bind(sockSrv(SOCKADDR*)&addrSrvsizeof(SOCKADDR));

listen(sockSrv);

SOCKADDR_IN addrClient;

int len=sizeof(SOCKADDR);

while()

{

SOCKET sockConn=accept(sockSrv(SOCKADDR*)&addrClient&len);

char sendBuf[];

sprintf(sendBufWelcom %s to inet_ntoa(addrClientsin_addr));

send(sockConnsendBufstrlen(sendBuf)+);

char recvBuf[];

recv(sockConnrecvBufstrlen(recvBuf));

printf(%s\nrecvBuf);

closesocket(sockConn);

}

}

『注意』本程序使用了动态连接库文件Ws_lib需要在工程属性里添加对Ws_lib的连接本程序用VC编译添加方法是在project\Configuration properties\Linker\Input下的Additional Dependencies 项里写如Ws_lib

客户端代码

#include Winsockh

#include stdioh

void main()

{

WORD wVersionRequested;

WSADATA wsaData;

int err;

wVersionRequested = MAKEWORD();

err = WSAStartup( wVersionRequested &wsaData );

if ( err != )

{

return;

}

if ( LOBYTE( wsaDatawVersion ) != ||

HIBYTE( wsaDatawVersion ) != )

{

WSACleanup( );

return;

}

SOCKET sockClient=socket(AF_INETSOCK_STREAM);

SOCKADDR_IN addrSrv;

addrSrvsin_addrS_unS_addr=inet_addr(); //是

一个回路地址

addrSrvsin_family=AF_INET;

addrSrvsin_port=htons();

connect(sockClient(SOCKADDR*)&addrSrvsizeof(SOCKADDR));

char recvBuf[];

recv(sockClientrecvBufstrlen(recvBuf));

printf(%s\nrecvBuf);

send(sockClient我是胡林strlen(我是胡林)+);

closesocket(sockClient);

WSACleanup();

}

同服务器端一样客户端程序也使用了Ws_lib动态连接库需要在工程属性里添加对Ws_lib的连接