socket 消息互发送程序

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Server:

#include "stdafx.h"

#include "施政server.h"

#include "施政serverDlg.h"

#include "winsock.h"

#pragma comment(lib,"wsock32")

#define WM_CLIENT_ACCEPT WM_USER+101//自定义的消息触发异步通信事件

#define WM_CLIENT_SENDDATA WM_USER+102//自定义的消息触发异步通信事件

SOCKET szsocket,s;

sockaddr_in szsockaddr;

ON_MESSAGE(WM_CLIENT_ACCEPT,Accept)//消息对应的函数

ON_MESSAGE(WM_CLIENT_SENDDATA,senddata)//消息对应的函数

OnButton1()// 对应初始按钮.

OnButton2()// 对应发送按钮

senddata(WPARAM wParam, LPARAM lParam) //对应消息MAP: ON_MESSAGE(WM_CLIENT_SENDDATA,senddata)

Accept(WPARAM wParam,LPARAM lParam) //对应消息MAP: ON_MESSAGE(WM_CLIENT_ACCEPT,Accept)

主代码如下,资源文件略

void CServerDlg::OnButton1() //初始化程序并给出状态

{

WSADATA szDATA;

WORD version=MAKEWORD(2,0);

WSAStartup(version,&szDATA);

int nStatus;

szsocket=socket(AF_INET,SOCK_STREAM,0);

nStatus=WSAAsyncSelect(szsocket,m_hWnd,WM_CLIENT_ACCEPT,FD_ACCEPT);

if(nStatus==SOCKET_ERROR)

{

SetDlgItemText(IDC_EDIT1,"非阻塞模式设置失败!/r/n");

AutoLastLine(IDC_EDIT1);

}

else

{

SetDlgItemText(IDC_EDIT1,"非阻塞模式设置成功!/r/n");

AutoLastLine(IDC_EDIT1);

}

szsockaddr.sin_family=AF_INET;

szsockaddr.sin_addr.S_un.S_addr=INADDR_ANY;

szsockaddr.sin_port=htons(3000);

int backdata=0;

backdata=bind(szsocket,(LPSOCKADDR)&szsockaddr,sizeof(szsockaddr));

if(backdata==SOCKET_ERROR)

{

CString str;

GetDlgItemText(IDC_EDIT1,str);

SetDlgItemText(IDC_EDIT1,str+"绑定协议出现错误!!/r/n");

AutoLastLine(IDC_EDIT1);

}

else

{

CString str;

GetDlgItemText(IDC_EDIT1,str);

SetDlgItemText(IDC_EDIT1,str+"绑定协议成功!!/r/n");

AutoLastLine(IDC_EDIT1);

}

backdata=listen(szsocket,1);

if(backdata==SOCKET_ERROR)

{

CString str;

GetDlgItemText(IDC_EDIT1,str);

SetDlgItemText(IDC_EDIT1,str+"监听端口失败!/r/n");

AutoLastLine(IDC_EDIT1);

}

else

{

char hostname[256];

CString str;

GetDlgItemText(IDC_EDIT1,str);

gethostname(hostname,sizeof(hostname));

hostent* hn;

hn=gethostbyname(hostname);//根据本机主机名得到本机ip

CString strIPAddr;

strIPAddr=inet_ntoa(*(struct in_addr*)hn->h_addr_list[0]);

SetDlgItemText(IDC_EDIT1,str+"监听端口成功!/r/n本机IP地址:"+strIPAddr+"/r/n");

AutoLastLine(IDC_EDIT1);

}

LRESULT CServerDlg::Accept(WPARAM wParam,LPARAM lParam)

{

if(WSAGETSELECTEVENT(lParam) == FD_ACCEPT)

{

s=accept(szsocket,NULL,NULL);

CString str;

GetDlgItemText(IDC_EDIT1,str);

SetDlgItemText(IDC_EDIT1,str+"IP连接成功!/r/n");

AutoLastLine(IDC_EDIT1);

}

if(WSAAsyncSelect(s,m_hWnd,WM_CLIENT_SENDDATA,FD_READ)==SOCKET_ERROR)

{

CString str;

GetDlgItemText(IDC_EDIT1,str);

SetDlgItemText(IDC_EDIT1,str+"数据传送消息失败!/r/n");

AutoLastLine(IDC_EDIT1);

return 0;

}

else

{

CString str;

GetDlgItemText(IDC_EDIT1,str);

SetDlgItemText(IDC_EDIT1,str+"准备接收数据传送!/r/n");

AutoLastLine(IDC_EDIT1);

}

return 0;

}

LRESULT CServerDlg::senddata(WPARAM wParam, LPARAM lParam)//显示接到的数据

{

if(WSAGETSELECTEVENT(lParam) == FD_READ)

{

char buff[1024];

recv(s,buff,sizeof(buff),0);

CString str1,str2;

str2=&buff[0];

GetDlgItemText(IDC_EDIT2,str1);

SetDlgItemText(IDC_EDIT2,str1+"client:"+str2+"/r/n");

}

AutoLastLine(IDC_EDIT2);

return 0;

}

void CServerDlg::OnButton2()//发送数据

{

char buff[1024];

CString str1,str2;

GetDlgItemText(IDC_EDIT3,str1);

GetDlgItemText(IDC_EDIT2,str2);

SetDlgItemText(IDC_EDIT2,str2+"server:"+str1+"/r/n");

AutoLastLine(IDC_EDIT2);

strcpy(buff,str1);

send(s,buff,sizeof(buff),0);

str1.Empty();

SetDlgItemText(IDC_EDIT3,str1);

}

void CServerDlg::AutoLastLine(int nID)

{

CEdit *pEdit=(CEdit *)GetDlgItem(nID);

int nLen=pEdit->GetWindowTextLength();

pEdit->SetFocus();

pEdit->SetSel(nLen,nLen);

}

Client:

#include "stdafx.h"

#include "施政client.h"

#include "施政clientDlg.h"

#include "winsock.h"

#pragma comment(lib,"wsock32")

SOCKET datasocket;

sockaddr_in datasockaddr;

#define WM_SENDDATA WM_USER + 101//自定义的消息用于触发异步通信事件

ON_MESSAGE(WM_SENDDATA,senddata)//消息和消息触发的函数

OnButton1()//对应按钮发送

OnButton2()//对应按钮连接

senddata(WPARAM wParam, LPARAM lParam) //对应消息ON_MESSAGE(WM_SENDDATA,senddata)

void CClientDlg::OnButton1()

{

char buff[1024];

CString str1,str2;

GetDlgItemText(IDC_EDIT2,str1);

GetDlgItemText(IDC_EDIT1,str2);

SetDlgItemText(IDC_EDIT1,str2+"client:"+str1+"/r/n");

AutoLastLine(IDC_EDIT1);

strcpy(buff,str1);

send(datasocket,buff,sizeof(buff),0);

str1.Empty();

SetDlgItemText(IDC_EDIT2,str1);

}

LRESULT CClientDlg::senddata(WPARAM wParam, LPARAM lParam)//接受并显示数据

{

if(WSAGETSELECTEVENT(lParam) == FD_READ)

{

char buff[1024];

recv(datasocket,buff,sizeof(buff),0);

CString str1,str2;

str2=&buff[0];

GetDlgItemText(IDC_EDIT1,str1);

SetDlgItemText(IDC_EDIT1,str1+"server:"+str2+"/r/n");

AutoLastLine(IDC_EDIT1);

}

return 0;

}

void CClientDlg::OnButton2() //初始化SOCKET 和服务器ip地址

{

WSADATA szDATA;

WORD version=MAKEWORD(2,0);

WSAStartup(version,&szDATA);

datasocket=socket(AF_INET,SOCK_STREAM,0);

datasockaddr.sin_family=AF_INET;

CString ipaddr1,ipaddr2,ipaddr3,ipaddr4;

GetDlgItemText(IDC_EDIT3,ipaddr1);

GetDlgItemText(IDC_EDIT4,ipaddr2);

GetDlgItemText(IDC_EDIT5,ipaddr3);

GetDlgItemText(IDC_EDIT6,ipaddr4);

datasockaddr.sin_addr.S_un.S_addr=inet_addr(ipaddr1+"."+ipaddr2+"."+ipaddr3+"."+ipaddr4);

datasockaddr.sin_port=htons(3000);

int backdata=0;

backdata=connect(datasocket,(LPSOCKADDR)&datasockaddr,sizeof(datasockaddr));

if(backdata==SOCKET_ERROR)

{

CString str;

GetDlgItemText(IDC_EDIT1,str);

SetDlgItemText(IDC_EDIT1,str+"链接失败!/r/n");

}

else

{

CString str;

GetDlgItemText(IDC_EDIT1,str);

SetDlgItemText(IDC_EDIT1,str+"IP连接成功!/r/n");

}

WSAAsyncSelect(datasocket,m_hWnd,WM_SENDDATA,FD_READ);//异步通信并注册消息事件

}

void CClientDlg::AutoLastLine(int nID)//滚动条始终处于最后一行

{

CEdit *pEdit=(CEdit *)GetDlgItem(nID);

int nLen=pEdit->GetWindowTextLength();

pEdit->SetFocus();

pEdit->SetSel(nLen,nLen);

}

socket 消息互发送 程序

socket 消息互发送程序