网络通信服务端程序问题
// 网络通信ServerDlg.cpp : implementation file//
#include "stdafx.h"
#include "网络通信Server.h"
#include "网络通信ServerDlg.h"
#ifdef _DEBUG
#define new DEBUG_NEW
#undef THIS_FILE
static char THIS_FILE[] = __FILE__;
#endif
/////////////////////////////////////////////////////////////////////////////
// CAboutDlg dialog used for App About
class CAboutDlg : public CDialog
{
public:
CAboutDlg();
// Dialog Data
//{{AFX_DATA(CAboutDlg)
enum { IDD = IDD_ABOUTBOX };
//}}AFX_DATA
// ClassWizard generated virtual function overrides
//{{AFX_VIRTUAL(CAboutDlg)
protected:
virtual void DoDataExchange(CDataExchange* pDX); // DDX/DDV support
//}}AFX_VIRTUAL
// Implementation
protected:
//{{AFX_MSG(CAboutDlg)
//}}AFX_MSG
DECLARE_MESSAGE_MAP()
};
CAboutDlg::CAboutDlg() : CDialog(CAboutDlg::IDD)
{
//{{AFX_DATA_INIT(CAboutDlg)
//}}AFX_DATA_INIT
}
void CAboutDlg::DoDataExchange(CDataExchange* pDX)
{
CDialog::DoDataExchange(pDX);
//{{AFX_DATA_MAP(CAboutDlg)
//}}AFX_DATA_MAP
}
BEGIN_MESSAGE_MAP(CAboutDlg, CDialog)
//{{AFX_MSG_MAP(CAboutDlg)
// No message handlers
//}}AFX_MSG_MAP
END_MESSAGE_MAP()
/////////////////////////////////////////////////////////////////////////////
// CServerDlg dialog
CServerDlg::CServerDlg(CWnd* pParent /*=NULL*/)
: CDialog(CServerDlg::IDD, pParent)
{
//{{AFX_DATA_INIT(CServerDlg)
m_status = _T("");
m_recv = _T("");
m_send = _T("");
//}}AFX_DATA_INIT
// Note that LoadIcon does not require a subsequent DestroyIcon in Win32
m_hIcon = AfxGetApp()->LoadIcon(IDR_MAINFRAME);
}
void CServerDlg::DoDataExchange(CDataExchange* pDX)
{
CDialog::DoDataExchange(pDX);
//{{AFX_DATA_MAP(CServerDlg)
DDX_Text(pDX, IDC_STATUS, m_status);
DDX_Text(pDX, IDC_RECV, m_recv);
DDX_Text(pDX, IDC_SEND, m_send);
//}}AFX_DATA_MAP
}
BEGIN_MESSAGE_MAP(CServerDlg, CDialog)
//{{AFX_MSG_MAP(CServerDlg)
ON_WM_SYSCOMMAND()
ON_WM_PAINT()
ON_WM_QUERYDRAGICON()
ON_BN_CLICKED(IDC_STARTRUN, OnStartrun)
ON_MESSAGE(WM_SOCKET,OnSocket)
ON_BN_CLICKED(IDC_SENDBTN, OnSendbtn)
//}}AFX_MSG_MAP
END_MESSAGE_MAP()
/////////////////////////////////////////////////////////////////////////////
// CServerDlg message handlers
BOOL CServerDlg::OnInitDialog()
{
CDialog::OnInitDialog();
// Add "About..." menu item to system menu.
// IDM_ABOUTBOX must be in the system command range.
ASSERT((IDM_ABOUTBOX & 0xFFF0) == IDM_ABOUTBOX);
ASSERT(IDM_ABOUTBOX < 0xF000);
CMenu* pSysMenu = GetSystemMenu(FALSE);
if (pSysMenu != NULL)
{
CString strAboutMenu;
strAboutMenu.LoadString(IDS_ABOUTBOX);
if (!strAboutMenu.IsEmpty())
{
pSysMenu->AppendMenu(MF_SEPARATOR);
pSysMenu->AppendMenu(MF_STRING, IDM_ABOUTBOX, strAboutMenu);
}
}
// Set the icon for this dialog. The framework does this automatically
// when the application's main window is not a dialog
SetIcon(m_hIcon, TRUE); // Set big icon
SetIcon(m_hIcon, FALSE); // Set small icon
// TODO: Add extra initialization here
return TRUE; // return TRUE unless you set the focus to a control
}
void CServerDlg::OnSysCommand(UINT nID, LPARAM lParam)
{
if ((nID & 0xFFF0) == IDM_ABOUTBOX)
{
CAboutDlg dlgAbout;
dlgAbout.DoModal();
}
else
{
CDialog::OnSysCommand(nID, lParam);
}
}
// If you add a minimize button to your dialog, you will need the code below
// to draw the icon. For MFC applications using the document/view model,
// this is automatically done for you by the framework.
void CServerDlg::OnPaint()
{
if (IsIconic())
{
CPaintDC dc(this); // device context for painting
SendMessage(WM_ICONERASEBKGND, (WPARAM) dc.GetSafeHdc(), 0);
// Center icon in client rectangle
int cxIcon = GetSystemMetrics(SM_CXICON);
int cyIcon = GetSystemMetrics(SM_CYICON);
CRect rect;
GetClientRect(&rect);
int x = (rect.Width() - cxIcon + 1) / 2;
int y = (rect.Height() - cyIcon + 1) / 2;
// Draw the icon
dc.DrawIcon(x, y, m_hIcon);
}
else
{
CDialog::OnPaint();
}
}
// The system calls this to obtain the cursor to display while the user drags
// the minimized window.
HCURSOR CServerDlg::OnQueryDragIcon()
{
return (HCURSOR) m_hIcon;
}
void CServerDlg::OnStartrun()
{
// TODO: Add your control notification handler code here
//加载Winsock dll
WORD version = MAKEWORD(2,0);
WSADATA wsadata;
if(WSAStartup(version,&wsadata))
{
MessageBox("加载Winsock dll 失败");
return;
}
//创建套接字
socket_server = socket(AF_INET,SOCK_STREAM,NULL);
if(INVALID_SOCKET == socket_server)
{
MessageBox("套接字创建失败");
return;
}
char hostname[20] = "";
if(gethostname(hostname,20))
{
MessageBox("主机名获取失败");
return;
}
hostent *htent = gethostbyname(hostname);
if(htent == NULL)
{
MessageBox("主机IP获取失败");
return;
}
// char pIp[4] = htent->h_addr_list[0];
// IN_ADDR addrIp;
// memmove(&addrIp,pIp,4);
LPSTR lpAddr = htent->h_addr_list[0];
IN_ADDR inAddr;
memmove(&inAddr,lpAddr,4);
CString ipAddress = inet_ntoa(inAddr);
SOCKADDR_IN addr;
memset(&addr,0,sizeof(SOCKADDR_IN));
addr.sin_family = AF_INET;
addr.sin_port = htons(80);
addr.sin_addr.S_un.S_addr = inet_addr(ipAddress);
//绑定套接字
if(!bind(socket_server,(sockaddr *)&addr,sizeof(sockaddr)) )
{
MessageBox("绑定IP和port出错");
return;
}
//监听
if(!listen(socket_server,SOMAXCONN) )
{
MessageBox("监听出错");
return;
}
if( WSAAsyncSelect(socket_server,this->m_hWnd,WM_SOCKET,FD_ACCEPT | FD_READ))
{
MessageBox("异步设置出错");
return;
}
}
void CServerDlg::OnCancel()
{
// TODO: Add extra cleanup here
if(WSACleanup())
{
MessageBox("卸载Winsock dll失败");
return;
}
if(socket_server)
closesocket(socket_server);
if(socket_client)
closesocket(socket_client);
CDialog::OnCancel();
}
void CServerDlg::OnSocket(WPARAM wParam,LPARAM lParam)
{
switch(lParam)
{
case FD_ACCEPT:
{
SOCKADDR_IN addr;
int len = sizeof(SOCKADDR_IN);
socket_client = accept(socket_server,(sockaddr *)&addr,&len);
if(socket_client == INVALID_SOCKET)
{
MessageBox("客户端套接字创建出错");
return;
}
//获取对方ip
m_status += "客户端IP：";
m_status += inet_ntoa(addr.sin_addr);
UpdateData(false);
}
break;
case FD_READ:
{
UpdateData(true);
char buff[1024] = "";
if(!recv(socket_client,buff,1024,NULL))
{
MessageBox("数据接收出错");
return;
}
m_recv += "\r\n客户端：";
m_recv += buff;
UpdateData(false);
}
}
}
void CServerDlg::OnSendbtn()
{
// TODO: Add your control notification handler code here
UpdateData(true);
if(SOCKET_ERROR == send(socket_client,m_send.GetBuffer(1),
m_send.GetLength(),NULL) )
{
MessageBox("消息发送出错");
return;
}
m_recv += "\r\n服务器端：";
m_recv += m_send;
m_send = "";
UpdateData(false);
}
运行提示绑定端口和IP出错
