TCP client

最新推荐文章于 2025-06-16 17:03:03 发布

原创最新推荐文章于 2025-06-16 17:03:03 发布 · 559 阅读

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文章标签：

#tcp #socket #input #stream

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本文介绍了一个使用C++实现的简单客户端socket通信程序。该程序包括连接服务器、发送消息及接收反馈等功能。通过实例代码展示了如何创建socket、设置地址信息、连接服务器并进行数据收发。

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void CClientDlg::OnBUTTONConnect()
{
UpdateData(TRUE);
if (m_ClientEdit_Name == L"")
{
  MessageBox(L"Please input your name");
  return ;
}
else
{
  m_CEditName.EnableWindow(FALSE);
}
ClientSocket = socket(AF_INET,SOCK_STREAM,0);
SOCKADDR_IN clientsocketinfo;
clientsocketinfo.sin_family = AF_INET;
clientsocketinfo.sin_port = htons(10000);
clientsocketinfo.sin_addr.S_un.S_addr = inet_addr("127.0.0.1");
int flag = connect(ClientSocket,(SOCKADDR*)&clientsocketinfo,sizeof(SOCKADDR_IN));
if(flag != 0)
{
  MessageBox(L"connect failed!");
  closesocket(ClientSocket);
  return;
}
char *buf = new char[50];
memset(buf,0,50);
recv(ClientSocket,buf,50,0);
m_ClientEdit_Rev += buf;
m_ClientEdit_Rev += L"/r/n";
UpdateData(FALSE);
}

void CClientDlg::OnButtonSend()
{
UpdateData(TRUE);
if (ClientSocket == INVALID_SOCKET)
{
  MessageBox(L"Connection first");
  return ;
}
if (m_ClientEdit_Send == L"")
{
  MessageBox(L"Please input");
  return ;
}
char *senddata = new char[1024];
memset(senddata,0,1024);
CString str = m_ClientEdit_Name + L":" + m_ClientEdit_Send + L"/r/n";
wcstombs(senddata,str,wcslen(str));
send(ClientSocket,senddata,strlen(senddata),0);

char *buf = new char[50];
memset(buf,0,50);
recv(ClientSocket,buf,50,0);
m_ClientEdit_Rev += buf;
m_ClientEdit_Rev += L"/r/n";
UpdateData(FALSE);
//closesocket(ClientSocket);
}