服务器端:
#include <Winsock2.h>
#include <stdio.h>#pragma comment(lib,"ws2_32.lib")void main()
{
WORD wVersionRequested;
WSADATA wsaData;
int err;
wVersionRequested = MAKEWORD( 1, 1 );
err = WSAStartup( wVersionRequested, &wsaData );
if ( err != 0 ) {
return;
}
if ( LOBYTE( wsaData.wVersion ) != 1 ||
HIBYTE( wsaData.wVersion ) != 1 ) {
WSACleanup( );
return;
}
SOCKET sockSrv=socket(AF_INET,SOCK_STREAM,0); SOCKADDR_IN addrSrv;
addrSrv.sin_addr.S_un.S_addr=htonl(INADDR_ANY);
addrSrv.sin_family=AF_INET;
addrSrv.sin_port=htons(7000); bind(sockSrv,(SOCKADDR*)&addrSrv,sizeof(SOCKADDR)); listen(sockSrv,5); SOCKADDR_IN addrClient;
int len=sizeof(SOCKADDR);
SOCKET sockConn=accept(sockSrv,(SOCKADDR*)&addrClient,&len);
while(1)
{
char *recvBuf = new char[20];
recv(sockConn,recvBuf,20,0);
printf("%s\n",recvBuf);
delete recvBuf;
Sleep(3000);
}
closesocket(sockConn);
}客户端:
#include <Winsock2.h>
#include <stdio.h>#pragma comment(lib,"ws2_32.lib")void main()
{
WORD wVersionRequested;
WSADATA wsaData;
int err;
wVersionRequested = MAKEWORD( 1, 1 );
err = WSAStartup( wVersionRequested, &wsaData );
if ( err != 0 ) {
return;
}
if ( LOBYTE( wsaData.wVersion ) != 1 ||
HIBYTE( wsaData.wVersion ) != 1 ) {
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(7000);
connect(sockClient,(SOCKADDR*)&addrSrv,sizeof(SOCKADDR)); for(int i = 0; i < 10; ++i)
{
send(sockClient,"This is li",strlen("This is li")+1,0);
// Sleep(10000);
} Sleep(10000); closesocket(sockClient);
WSACleanup();
}
#include <Winsock2.h>
#include <stdio.h>#pragma comment(lib,"ws2_32.lib")void main()
{
WORD wVersionRequested;
WSADATA wsaData;
int err;
wVersionRequested = MAKEWORD( 1, 1 );
err = WSAStartup( wVersionRequested, &wsaData );
if ( err != 0 ) {
return;
}
if ( LOBYTE( wsaData.wVersion ) != 1 ||
HIBYTE( wsaData.wVersion ) != 1 ) {
WSACleanup( );
return;
}
SOCKET sockSrv=socket(AF_INET,SOCK_STREAM,0); SOCKADDR_IN addrSrv;
addrSrv.sin_addr.S_un.S_addr=htonl(INADDR_ANY);
addrSrv.sin_family=AF_INET;
addrSrv.sin_port=htons(7000); bind(sockSrv,(SOCKADDR*)&addrSrv,sizeof(SOCKADDR)); listen(sockSrv,5); SOCKADDR_IN addrClient;
int len=sizeof(SOCKADDR);
SOCKET sockConn=accept(sockSrv,(SOCKADDR*)&addrClient,&len);
while(1)
{
char *recvBuf = new char[20];
recv(sockConn,recvBuf,20,0);
printf("%s\n",recvBuf);
delete recvBuf;
Sleep(3000);
}
closesocket(sockConn);
}客户端:
#include <Winsock2.h>
#include <stdio.h>#pragma comment(lib,"ws2_32.lib")void main()
{
WORD wVersionRequested;
WSADATA wsaData;
int err;
wVersionRequested = MAKEWORD( 1, 1 );
err = WSAStartup( wVersionRequested, &wsaData );
if ( err != 0 ) {
return;
}
if ( LOBYTE( wsaData.wVersion ) != 1 ||
HIBYTE( wsaData.wVersion ) != 1 ) {
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(7000);
connect(sockClient,(SOCKADDR*)&addrSrv,sizeof(SOCKADDR)); for(int i = 0; i < 10; ++i)
{
send(sockClient,"This is li",strlen("This is li")+1,0);
// Sleep(10000);
} Sleep(10000); closesocket(sockClient);
WSACleanup();
}
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结果非常奇怪 recv属于阻塞函数 不应该数据丢失 但是我接不到那些数据我的电脑结果是
i
li
is li
s is li
his is li
以后的就全是乱码了 求解答
你接收端
while(1)
{
char *recvBuf = new char[20];
recv(sockConn,recvBuf,20,0);
printf("%s\n",recvBuf);
delete recvBuf;
Sleep(3000);
}
这个死循环会导致你一直不停的接收和输出````所以就导致你
i
li
is li
s is li
his is li第二个问题
你的发送端
for(int i = 0; i < 10; ++i)
{
send(sockClient,"This is li",strlen("This is li")+1,0);
// Sleep(10000);
}
又一个死循环···这样的后果就是不停地发送数据给接收端,后果就是导致接收端缓冲区数据混乱的主要原因吧
不太清楚楼主的死循环接收和发送用意何在
下面给出解决方法··很简单···把你的循环去掉就应该没事的了···不明白跟贴问