网络程序设计实验4基于MFCCAsyncSocket类网络通信

1、苏州大学实验报告院、系文正学院年级专业12物理网姓名高成波学号36课程名称网络程序设计成绩指导教师陆建德同组实验者无实验日期16 / 16文档可自由编辑打印实 验 名 称实验四 基于MFC CAsyncSocket类的网络通信一. 实验内容（要求先完成题目，然后上机验证）本实验利用Visual C+ MFC CAsyncSocket类进行网络程序设计。参照实验4讲义示例，完成基于CAsyncSocket类的点到点网络聊天通信程序，并上机调试。要求可以实现本机间以及在同一网络内不同主机之间的通信。实验报告内容包括主要的实验代码、必要的注释或另外的说明文档以及实验结果与分析。ChatClientD

2、lg.cpp#include "stdafx.h"#include "ChatClient.h"#include "ChatClientDlg.h"#ifdef _DEBUG#define new DEBUG_NEW#undef THIS_FILEstatic char THIS_FILE = _FILE_;#endif/ CAboutDlg dialog used for App Aboutclass CAboutDlg : public CDialogpublic:CAboutDlg();/ Dialog Data/AFX_DAT

3、A(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/ Implementationprotected:/AFX_MSG(CAboutDlg)/AFX_MSGDECLARE_MESSAGE_MAP();CAboutDlg:CAboutDl

4、g() : CDialog(CAboutDlg:IDD)/AFX_DATA_INIT(CAboutDlg)/AFX_DATA_INITvoid CAboutDlg:DoDataExchange(CDataExchange* pDX)CDialog:DoDataExchange(pDX);/AFX_DATA_MAP(CAboutDlg)/AFX_DATA_MAPBEGIN_MESSAGE_MAP(CAboutDlg, CDialog)/AFX_MSG_MAP(CAboutDlg)/ No message handlers/AFX_MSG_MAPEND_MESSAGE_MAP()/ CChatCl

5、ientDlg dialogCChatClientDlg:CChatClientDlg(CWnd* pParent /*=NULL*/): CDialog(CChatClientDlg:IDD, pParent)/AFX_DATA_INIT(CChatClientDlg)m_edit_server = _T("");m_edit_msg = _T("");/AFX_DATA_INIT/ Note that LoadIcon does not require a subsequent DestroyIcon in Win32m_hIcon = AfxGet

6、App()->LoadIcon(IDR_MAINFRAME);void CChatClientDlg:DoDataExchange(CDataExchange* pDX)CDialog:DoDataExchange(pDX);/AFX_DATA_MAP(CChatClientDlg)DDX_Control(pDX, IDC_LIST_MSG, m_list_msg);DDX_Text(pDX, IDC_EDIT_SEVER, m_edit_server);DDX_Text(pDX, IDC_EDIT_MSG, m_edit_msg);/AFX_DATA_MAPBEGIN_MESSAGE_

7、MAP(CChatClientDlg, CDialog)/AFX_MSG_MAP(CChatClientDlg)ON_WM_SYSCOMMAND()ON_WM_PAINT()ON_WM_QUERYDRAGICON()ON_BN_CLICKED(IDC_BTN_CONNECT, OnBtnConnect)ON_BN_CLICKED(IDC_BTN_DISCONNECT, OnBtnDisconnect)ON_BN_CLICKED(IDC_BTN_MSG_SEND, OnBtnMsgSend)/AFX_MSG_MAPEND_MESSAGE_MAP()/ CChatClientDlg message

8、 handlersBOOL CChatClientDlg: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 (pSysMen

9、u != 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

10、window is not a dialogSetIcon(m_hIcon, TRUE);/ Set big iconSetIcon(m_hIcon, FALSE);/ Set small icon/ TODO: Add extra initialization hereGetDlgItem(IDC_BTN_CONNECT)->EnableWindow(TRUE);GetDlgItem(IDC_BTN_DISCONNECT)->EnableWindow(FALSE);GetDlgItem(IDC_BTN_MSG_SEND)->EnableWindow(FALSE);GetDl

11、gItem(IDCANCEL)->EnableWindow(TRUE);return TRUE; / return TRUE unless you set the focus to a controlvoid CChatClientDlg:OnSysCommand(UINT nID, LPARAM lParam)if (nID & 0xFFF0) = IDM_ABOUTBOX)CAboutDlg dlgAbout;dlgAbout.DoModal();elseCDialog:OnSysCommand(nID, lParam);/ If you add a minimize but

12、ton 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 CChatClientDlg:OnPaint() if (IsIconic()CPaintDC dc(this); / device context for paintingSendMessage(WM_ICONERASEBKGND, (WPA

13、RAM) dc.GetSafeHdc(), 0);/ Center icon in client rectangleint 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 icondc.DrawIcon(x, y, m_hIcon);e

14、lseCDialog:OnPaint();/ The system calls this to obtain the cursor to display while the user drags/ the minimized window.HCURSOR CChatClientDlg:OnQueryDragIcon()return (HCURSOR) m_hIcon;/ CMySocketCMySocket:CMySocket()CMySocket:CMySocket()/ Do not edit the following lines, which are needed by ClassWi

15、zard.#if 0BEGIN_MESSAGE_MAP(CMySocket, CAsyncSocket)/AFX_MSG_MAP(CMySocket)/AFX_MSG_MAPEND_MESSAGE_MAP()#endif/ 0/ CMySocket member functionsvoid CMySocket:OnClose(int nErrorCode) / TODO: Add your specialized code here and/or call the base classif(nErrorCode = 0)CChatClientDlg * p_Dlg;p_Dlg = (CChat

16、ClientDlg *) :AfxGetMainWnd();p_Dlg->close();CAsyncSocket:OnClose(nErrorCode);void CMySocket:OnSend(int nErrorCode) / TODO: Add your specialized code here and/or call the base classif(nErrorCode = 0)CChatClientDlg * p_Dlg;p_Dlg = (CChatClientDlg *) :AfxGetMainWnd();p_Dlg->send();CAsyncSocket:O

17、nSend(nErrorCode);void CMySocket:OnReceive(int nErrorCode) / TODO: Add your specialized code here and/or call the base classif(nErrorCode = 0)CChatClientDlg * p_Dlg;p_Dlg = (CChatClientDlg *) :AfxGetMainWnd();p_Dlg->recv();CAsyncSocket:OnReceive(nErrorCode);void CMySocket:OnConnect(int nErrorCode

18、) / TODO: Add your specialized code here and/or call the base classif(nErrorCode = 0)CChatClientDlg * p_Dlg;p_Dlg = (CChatClientDlg *) :AfxGetMainWnd();p_Dlg->connect();CAsyncSocket:OnConnect(nErrorCode);void CChatClientDlg:recv()char buf1024;CString msg;CString from = "对方："int len = m_

19、worksocket.Receive(buf, 1024);buflen = '0'msg = buf;msg = from + msg;m_list_msg.InsertString(0, msg);void CChatClientDlg:send()UpdateData(true);if(!m_edit_msg.IsEmpty()CString msg;CString from = "自己："msg = from + m_edit_msg;int len = m_edit_msg.GetLength();m_worksocket.Send(m_edit_

20、msg, len);m_list_msg.InsertString(0, msg);m_edit_msg.Empty();UpdateData(FALSE);void CChatClientDlg:close()m_worksocket.Close();AfxMessageBox("连接已经断开！");GetDlgItem(IDC_BTN_CONNECT)->EnableWindow(TRUE);GetDlgItem(IDC_BTN_DISCONNECT)->EnableWindow(FALSE);GetDlgItem(IDC_BTN_MSG_SEND)->

21、;EnableWindow(FALSE);GetDlgItem(IDCANCEL)->EnableWindow(TRUE);void CChatClientDlg:connect()AfxMessageBox("连接成功！");GetDlgItem(IDC_BTN_MSG_SEND)->EnableWindow(TRUE);GetDlgItem(IDC_BTN_DISCONNECT)->EnableWindow(TRUE);GetDlgItem(IDC_BTN_CONNECT)->EnableWindow(FALSE);GetDlgItem(IDCA

22、NCEL)->EnableWindow(FALSE);void CChatClientDlg:OnBtnConnect() / TODO: Add your control notification handler code here/ TODO: Add your control notification handler code hereUpdateData(TRUE);if(!m_edit_server.IsEmpty()m_worksocket.Create();m_worksocket.Connect(m_edit_server, iPort);GetDlgItem(IDC_B

23、TN_CONNECT)->EnableWindow(FALSE);m_edit_server.Empty();void CChatClientDlg:OnBtnDisconnect() / TODO: Add your control notification handler code hereclose();void CChatClientDlg:OnBtnMsgSend() / TODO: Add your control notification handler code heresend();ChatSever.cpp#include "stdafx.h"#i

24、nclude "ChatSever.h"#include "ChatSeverDlg.h"#ifdef _DEBUG#define new DEBUG_NEW#undef THIS_FILEstatic char THIS_FILE = _FILE_;#endif/ CAboutDlg dialog used for App Aboutclass CAboutDlg : public CDialogpublic:CAboutDlg();/ Dialog Data/AFX_DATA(CAboutDlg)enum IDD = IDD_ABOUTBOX ;/A

25、FX_DATA/ ClassWizard generated virtual function overrides/AFX_VIRTUAL(CAboutDlg)protected:virtual void DoDataExchange(CDataExchange* pDX); / DDX/DDV support/AFX_VIRTUAL/ Implementationprotected:/AFX_MSG(CAboutDlg)/AFX_MSGDECLARE_MESSAGE_MAP();CAboutDlg:CAboutDlg() : CDialog(CAboutDlg:IDD)/AFX_DATA_I

26、NIT(CAboutDlg)/AFX_DATA_INITvoid CAboutDlg:DoDataExchange(CDataExchange* pDX)CDialog:DoDataExchange(pDX);/AFX_DATA_MAP(CAboutDlg)/AFX_DATA_MAPBEGIN_MESSAGE_MAP(CAboutDlg, CDialog)/AFX_MSG_MAP(CAboutDlg)/ No message handlers/AFX_MSG_MAPEND_MESSAGE_MAP()/ CChatSeverDlg dialogCChatSeverDlg:CChatSeverDl

27、g(CWnd* pParent /*=NULL*/): CDialog(CChatSeverDlg:IDD, pParent)/AFX_DATA_INIT(CChatSeverDlg)m_edit_msg = _T("");/AFX_DATA_INIT/ Note that LoadIcon does not require a subsequent DestroyIcon in Win32m_hIcon = AfxGetApp()->LoadIcon(IDR_MAINFRAME);void CChatSeverDlg:DoDataExchange(CDataExch

28、ange* pDX)CDialog:DoDataExchange(pDX);/AFX_DATA_MAP(CChatSeverDlg)DDX_Control(pDX, IDC_LIST_MSG, m_list_msg);DDX_Text(pDX, IDC_EDIT_MSG, m_edit_msg);/AFX_DATA_MAPBEGIN_MESSAGE_MAP(CChatSeverDlg, CDialog)/AFX_MSG_MAP(CChatSeverDlg)ON_WM_SYSCOMMAND()ON_WM_PAINT()ON_WM_QUERYDRAGICON()ON_BN_CLICKED(IDC_

29、BTN_SER_OPEN, OnBtnSerOpen)ON_BN_CLICKED(IDC_BTN_SER_CLOSE, OnBtnSerClose)ON_BN_CLICKED(IDC_BTN_DISCONNECT, OnBtnDisconnect)ON_BN_CLICKED(IDC_BTN_MSG_SEND, OnBtnMsgSend)/AFX_MSG_MAPEND_MESSAGE_MAP()/ CChatSeverDlg message handlersBOOL CChatSeverDlg:OnInitDialog()CDialog:OnInitDialog();/ Add "Ab

30、out." 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 (!strAbo

31、utMenu.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 dialogSetIcon(m_hIcon, TRUE);/ Set big iconSetIcon(m_hIcon, FALS

32、E);/ Set small icon/ TODO: Add extra initialization hereGetDlgItem(IDC_BTN_SER_OPEN)->EnableWindow(TRUE);GetDlgItem(IDC_BTN_SER_CLOSE)->EnableWindow(FALSE);GetDlgItem(IDC_BTN_DISCONNECT)->EnableWindow(FALSE);GetDlgItem(IDC_BTN_MSG_SEND)->EnableWindow(FALSE);GetDlgItem(IDCANCEL)->Enabl

33、eWindow(TRUE);UpdateData(FALSE);return TRUE; / return TRUE unless you set the focus to a controlvoid CChatSeverDlg:OnSysCommand(UINT nID, LPARAM lParam)if (nID & 0xFFF0) = IDM_ABOUTBOX)CAboutDlg dlgAbout;dlgAbout.DoModal();elseCDialog:OnSysCommand(nID, lParam);/ If you add a minimize button to y

34、our 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 CChatSeverDlg:OnPaint() if (IsIconic()CPaintDC dc(this); / device context for paintingSendMessage(WM_ICONERASEBKGND, (WPARAM) dc.G

35、etSafeHdc(), 0);/ Center icon in client rectangleint 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 icondc.DrawIcon(x, y, m_hIcon);elseCDialo

36、g:OnPaint();/ The system calls this to obtain the cursor to display while the user drags/ the minimized window.HCURSOR CChatSeverDlg:OnQueryDragIcon()return (HCURSOR) m_hIcon;/ CMySocketCMySocket:CMySocket()CMySocket:CMySocket()/ Do not edit the following lines, which are needed by ClassWizard.#if 0

37、BEGIN_MESSAGE_MAP(CMySocket, CAsyncSocket)/AFX_MSG_MAP(CMySocket)/AFX_MSG_MAPEND_MESSAGE_MAP()#endif/ 0/ CMySocket member functionsvoid CMySocket:OnAccept(int nErrorCode) / TODO: Add your specialized code here and/or call the base classif(nErrorCode = 0)CChatSeverDlg * p_Dlg;p_Dlg = (CChatSeverDlg*)

38、 :AfxGetMainWnd();p_Dlg->accept();CAsyncSocket:OnAccept(nErrorCode);void CMySocket:OnClose(int nErrorCode) / TODO: Add your specialized code here and/or call the base classif(nErrorCode = 0)CChatSeverDlg * p_Dlg;p_Dlg = (CChatSeverDlg *) :AfxGetMainWnd();p_Dlg->close();CAsyncSocket:OnClose(nEr

39、rorCode);void CMySocket:OnReceive(int nErrorCode) / TODO: Add your specialized code here and/or call the base classif(nErrorCode = 0)CChatSeverDlg * p_Dlg;p_Dlg = (CChatSeverDlg *) :AfxGetMainWnd();p_Dlg->recv();CAsyncSocket:OnReceive(nErrorCode);void CMySocket:OnSend(int nErrorCode) / TODO: Add

40、your specialized code here and/or call the base classif(nErrorCode = 0)CChatSeverDlg * p_Dlg;p_Dlg = (CChatSeverDlg *) :AfxGetMainWnd();p_Dlg->send();CAsyncSocket:OnSend(nErrorCode);void CChatSeverDlg:accept()struct sockaddr_in cli;int len = sizeof(cli);CString strIpAddr;m_listensocket.Accept(m_w

41、orksocket, (SOCKADDR*)&cli, &len);strIpAddr = inet_ntoa(cli.sin_addr);strIpAddr = "新的连接：" + strIpAddr;AfxMessageBox(strIpAddr);GetDlgItem(IDC_BTN_SER_CLOSE)->EnableWindow(FALSE);GetDlgItem(IDC_BTN_MSG_SEND)->EnableWindow(TRUE);GetDlgItem(IDC_BTN_DISCONNECT)->EnableWindow(T

42、RUE);void CChatSeverDlg:recv()char buf1024;CString msg;CString from = "对方："int len = m_worksocket.Receive(buf, 1024);buflen = '0'msg = buf;msg = from + msg;m_list_msg.InsertString(0, msg); UpdateData(FALSE); /将对应变量中字符串送控件中显示void CChatSeverDlg:send()UpdateData(TRUE); /将控件中显示的字符串送到对应的变量中if(!m_edit_msg.IsEmpty()CString msg;CString from = "自己："int len = m_edit_msg.GetLength();m_worksocket.Send(m_edit_msg, len);msg = from + m_edit_msg;m_list_msg.InsertString(0, msg);m_edit_msg.Empty();Upd