VC60作的“服务器和客户端”的程序的详细操作步骤（MFC）.doc

VC6.0作的“服务器和客户端”的程序的详细操作步骤实验四：基于TCP的Socket应用程序（MFC）教材上是在win32下手动添加的代码。这个程序是基于对话框的MFC应用程序。（一） 服务器端应用程序操作过程1、新建“MFC APPWIZARD(EXE)”，选择文件路径，输入文件名 在第一步中选择应用程序类型为“基本对话框” 在第二步中选中“windows sockts支持”2、添加各控件1）添加一个文本框控件，主要用来设置服务器的端口，ID号为IDC_ServerPort2）添加一个标准按钮控件，用来开启服务器，实现监听功能，ID号为IDC_Start，标题为开启服务3）添加一个标准按钮控件，用于结束服务器服务，ID号为IDC_End，标题为结束服务4）添加一个标准按钮控件，用于退出服务器应用程序，ID号为IDC_Exit，标题为退出程序5）添加一个标准按钮控件，用于清空服务器端的记录信息，ID号为IDC_Clear，标题为清空信息6）添加一个列表框控件（List Box），用于记录计算机间的聊天信息，ID号为IDC_Chat7）添加相应的静态文本控件，如下图所示：3、为各控件添加成员变量ID号类型成员变量IDC_ServerPortintm_iPortCEditm_ctlPortIDC_StartCButtonm_btnStartIDC_EndCButtonm_ctlEndIDC_ExitCButtonm_ctlExitIDC_ClearCButtonm_ctlClearIDC_ChatCstringm_strChatCListBoxm_lstChat4、设计CAsyncSocket的派生类CSocketListen1)新建类CSocketListen，选择基类为CAsyncSocket2）在SocketListen.h中添加代码（粗体字为添加的代码）class CSocketListen : public CAsyncSocket/ Attributespublic:/ Operationspublic:CSocketListen();virtual CSocketListen();/ Overridespublic:/自定义函数，用来设置该类与对话框关联void SetParent(CDialog *pWnd);/void operator=(const CSocketListen& rSrc);/ ClassWizard generated virtual function overrides/AFX_VIRTUAL(CSocketListen)/AFX_VIRTUAL/ Generated message map functions/AFX_MSG(CSocketListen)/ NOTE - the ClassWizard will add and remove member functions here./AFX_MSGprivate:CDialog *m_pWnd;/ Implementationprotected:virtual void OnAccept(int nErrorCode);virtual void OnClose(int nErrorCode);virtual void OnReceive(int nErrorCode);virtual void OnSend(int nErrorCode);3）在SocketListen.cpp中添加代码（粗体字为添加的代码）#include stdafx.h#include 实验四服务器端.h#include SocketListen.h#include 实验四服务器端Dlg.h#ifdef _DEBUG#define new DEBUG_NEW#undef THIS_FILEstatic char THIS_FILE = _FILE_;#endif/ CSocketListenCSocketListen:CSocketListen()CSocketListen:CSocketListen()/ Do not edit the following lines, which are needed by ClassWizard.#if 0BEGIN_MESSAGE_MAP(CSocketListen, CAsyncSocket)/AFX_MSG_MAP(CSocketListen)/AFX_MSG_MAPEND_MESSAGE_MAP()#endif/ 0/ CSocketListen member functions/自定义事件，设置与对话框的关联void CSocketListen:SetParent(CDialog *pWnd)m_pWnd = pWnd;/下列的Socket事件，设置其与对话框相关联，重载代码如下：void CSocketListen:OnAccept(int nErrorCode) if (0=nErrorCode)/响应socket请求连接的事件(CMyDlg *)m_pWnd)-OnAccept();void CSocketListen:OnClose(int nErrorCode) if (0=nErrorCode)/响应socket断开数据的事件(CMyDlg *)m_pWnd)-OnSocketClose(this);void CSocketListen:OnReceive(int nErrorCode) if (0=nErrorCode)/响应socket接收数据的事件(CMyDlg*)m_pWnd)-OnReceive(this);void CSocketListen:OnSend(int nErrorCode) if (0=nErrorCode)/响应socket发送数据的事件(CMyDlg*)m_pWnd)-OnSend();5、分别添加对话框类MyDlg中的函数代码1）添加“实验四服务器端Dlg.h”头文件中的代码（粗体字为添加的代码）#if !defined(AFX_DLG_H_225BCFCC_FE91_46E5_AEFA_32F1A897B88F_INCLUDED_)#define AFX_DLG_H_225BCFCC_FE91_46E5_AEFA_32F1A897B88F_INCLUDED_#include SocketListen.h/头文件#if _MSC_VER 1000#pragma once#endif / _MSC_VER 1000/ CMyDlg dialogclass CMyDlg : public CDialog/ Constructionpublic:CMyDlg(CWnd* pParent = NULL);/ standard constructor/声明如下四个函数跟SocketListen类的事件关联。void OnSend();/函数传递CSocketListen指针类型的参数，其目的是：在连接多个客户端应用程序时，根据该参数能确定究竟是哪个连接socket在产生网络事件，从而能够有针对地处理数据void OnReceive(CSocketListen *pSocket);void OnSocketClose(CSocketListen *pSocket);void OnAccept();/ Dialog Data/AFX_DATA(CMyDlg)enum IDD = IDD_MY_DIALOG ;CButtonm_ctlExit;CButtonm_btnStart;CButtonm_ctlEnd;CButtonm_ctlClear;CListBoxm_lstChat;CEditm_ctlPort;intm_iPort;CStringm_strChat;/AFX_DATA/ ClassWizard generated virtual function overrides/AFX_VIRTUAL(CMyDlg)protected:virtual void DoDataExchange(CDataExchange* pDX);/ DDX/DDV support/AFX_VIRTUAL/ Implementationprotected:HICON m_hIcon;/ Generated message map functions/AFX_MSG(CMyDlg)virtual BOOL OnInitDialog();afx_msg void OnSysCommand(UINT nID, LPARAM lParam);afx_msg void OnPaint();afx_msg HCURSOR OnQueryDragIcon();afx_msg void OnStart();afx_msg void OnEnd();afx_msg void OnExit();afx_msg void OnClear();/AFX_MSGDECLARE_MESSAGE_MAP()public: CSocketListen m_sListenSocket;/定义用于监听的socket对象/定义链表，用来存储不同的客户端请求所产生的连接socket对象指针/要使用链表模板类，需要在StdAfx头文件中加入以下语句#include CList m_sAcceptSocketA;2）在“实验四服务器端Dlg.cpp”中添加消息函数的代码l 单击类视图中CmyDlg类中CMyDlg(CWnd* pParent /*=NULL*/)函数，添加CMyDlg(CWnd* pParent /*=NULL*/)函数的代码（粗体字为添加的代码）CMyDlg:CMyDlg(CWnd* pParent /*=NULL*/): CDialog(CMyDlg:IDD, pParent)/AFX_DATA_INIT(CMyDlg)m_iPort = 0;m_strChat = _T(); m_iPort = 1001;/初始化服务器程序设置端口的文本框控件/AFX_DATA_INIT/ Note that LoadIcon does not require a subsequent DestroyIcon in Win32m_hIcon = AfxGetApp()-LoadIcon(IDR_MAINFRAME);l 单击类视图中CmyDlg类中OnInitDialog()函数，添加OnInitDialog()函数的代码BOOL CMyDlg: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 AppendMenu(MF_SEPARATOR);pSysMenu-AppendMenu(MF_STRING, IDM_ABOUTBOX, strAboutMenu);/ Set the icon for this dialog. The framework does this automatically/ when the applications main window is not a dialogSetIcon(m_hIcon, TRUE);/ Set big iconSetIcon(m_hIcon, FALSE);/ Set small icon/ TODO: Add extra initialization here/设置窗体标题，/AfxGetApp()-m_pMainWnd-SetWindowText();简写如下条语句。SetWindowText(服务器端程序); /将自定义的SocketListen类与对话框相关联m_sListenSocket.SetParent(this);/m_sAcceptSocket.SetParent(this);/初始的时候，“结束服务”按钮不可用m_ctlEnd.EnableWindow(false);return TRUE; / return TRUE unless you set the focus to a controll 双击“开启服务”按钮，添加OnStart()函数的代码/获取端口号void CMyDlg:OnStart() / TODO: Add your control notification handler code here/获取端口号UpdateData(true);/服务开启后，端口号和该按钮禁用m_ctlPort.EnableWindow(false);m_btnStart.EnableWindow(false);/“结束服务”按钮可用m_ctlEnd.EnableWindow(true);/创建服务器端套接字，Create函数的第二个关键字指明基于TCP协议m_sListenSocket.Create(m_iPort, SOCK_STREAM);m_sListenSocket.Listen();l 双击“结束服务”按钮，添加OnEnd ()函数的代码void CMyDlg:OnEnd() / TODO: Add your control notification handler code herem_sListenSocket.Close();int i;for(i=0; iClose();/m_sAcceptSocket.Close();/结束服务后，端口号和开启服务的按钮可用m_ctlPort.EnableWindow(true);m_btnStart.EnableWindow(true);/“结束服务”按钮不可用m_ctlEnd.EnableWindow(false);l 双击“退出程序”按钮，添加OnExit ()函数的代码void CMyDlg:OnExit() / TODO: Add your control notification handler code hereOnEnd();CDialog:OnOK();l 双击“清空信息”按钮，添加OnClear ()函数的代码void CMyDlg:OnClear() / TODO: Add your control notification handler code here/清空列表框内容m_lstChat.SendMessage(LB_RESETCONTENT,0,0);3）在“实验四服务器端Dlg.cpp”中添加与派生的CsocketListen类相关的事件函数的代码/与Socket类相关的事件函数void CMyDlg:OnAccept() /请求连接int i;i = m_sAcceptSocketA.GetCount();CSocketListen *m_sAcceptSocket = new CSocketListen;m_sAcceptSocket-SetParent(this);if(i = 5 | iGetPeerName(strIp, iPort);/如果上条语句执行正确的话，执行下列语句if(iErr != SOCKET_ERROR)/取得网络顺序的IP值dwIp = inet_addr(strIp);/获取主机名称,注意其中第一个参数的转化pHost = gethostbyaddr(LPSTR)&dwIp, 4, AF_INET);memcpy(pName, pHost-h_name, 256);strName = pName;elsedelete pName;return;strSend = strName + + strIp+ : + 已经退出本系统！;iLen = strSend.GetLength();m_sAcceptSocketA.RemoveAt(m_sAcceptSocketA.Find(pSocket);pSocket-Close();/ 通知当前在线的所有用户，有人退出系统！int i, k;k = m_sAcceptSocketA.GetCount();for(i=0; i Send(LPCTSTR(strSend),iLen);delete pName;void CMyDlg:OnReceive(CSocketListen *pSocket) /接收数据char*pBuf = new char1025;intiBufSize = 1024;intiRecvd;CStringstrRecvd;/接收的数据信息字符串intiLen;intiSend;DWORDdwIp;/网络顺序形式的IP地址CString strIp;/连接方IP地址CString strName;/连接方主机名char*pName = new char256;UINTiPort;intiErr;structhostentFAR *pHost;iErr = pSocket-GetPeerName(strIp, iPort);/如果上条语句执行正确的话，执行下列语句if(iErr != SOCKET_ERROR)/取得网络顺序的IP值dwIp = inet_addr(strIp);/获取主机名称,注意其中第一个参数的转化pHost = gethostbyaddr(LPSTR)&dwIp, 4, AF_INET);memcpy(pName, pHost-h_name, 256);strName = pName;elsedelete pBuf;delete pName;return;/ 接收信息，并返回接收到的字节数iRecvd = pSocket-Receive(pBuf, iBufSize);/ m_sAcceptSocket.Receive(pBuf, iBufSize);/ 判断是否有错误发生if (iRecvd = SOCKET_ERROR)delete pBuf;delete pName;return;else/ 利用NULL来截去接收缓存区中多余的字符pBufiRecvd = NULL;/ 将接收到的有用的信息赋值给CString变量strRecvd = pBuf;strRecvd = strName + + strIp+ : + strRecvd;iLen = strRecvd.GetLength();/ 将接收到的信息加入到列表框中去,SendMessage将字符串添加到末尾/m_lstChat.AddString(strRecvd);m_lstChat.SendMessage(LB_INSERTSTRING, -1, (LPARAM)(LPCTSTR(strRecvd);/将对应的变量的变化显示在控件上UpdateData(FALSE);/将接收到的信息转发给每个客户端int i, k;k = m_sAcceptSocketA.GetCount();for(i=0; i Send(LPCTSTR(strRecvd),iLen);delete pBuf;delete pName;（二）客户端应用程序操作过程1、新建工程“MFC APPWIZARD(EXE)”，选择文件路径，输入文件名 在第一步中选择应用程序类型为“基本对话框” 在第二步中选中“windows sockts支持”2、添加各控件1）添加一个文本框控件，用来输入要链接的服务器名，ID号为IDC_ServName2）添加一个文本框控件，用来输入服务器端口号，ID号为IDC_ServPort3）添加一个文本框控件，用来输入要发送的字符串信息，ID号为IDC_Data4）添加一个标准按钮控件，用来连接服务器，ID号为IDC_Connect5）添加一个标准按钮控件，用来断开与服务器的连接，ID号为IDC_DisConnect6）添加一个标准按钮控件，用来退出应用程序，ID号为IDC_Exit7）添加一个标准按钮控件，用来清空聊天信息，ID号为IDC_Clear8）添加一个标占按钮控件，用来发送信息，ID号为IDC_Send9）添加一个列表框控件，用来显示已经发送过来的每条信息，ID号为IDC_Chat10）添加相应静态文本控件，如下图所示：3、为各控件添加成员变量ID号类型成员变量IDC_ChatCStringm_strChatCListBoxm_lstChatIDC_ClearCButtonm_btnClearIDC_ConnectCButtonm_btnConnIDC_DataCStringm_strDataCEditm_ctlDataIDC_DisConnectCButtonm_btnDisconnIDC_ExitCButtonm_btnExitIDC_SendCButtonm_btnSendIDC_ServNameCstringm_strNameCEditm_ctlNameIDC_ServPortintm_iPortCEditm_ctlPort4、设计CAsyncSocket的派生类SocketClient1)新建类SocketClient，选择基类为CAsyncSocket2）添加头文件SocketClient.h的代码（粗体字为添加的代码）class SocketClient : public CAsyncSocket/ Attributespublic:/ Operationspublic:SocketClient();virtual SocketClient();/ Overridespublic:/自定义函数，用来设置该类与对话框关联void SetParent(CDialog *pWnd);/ ClassWizard generated virtual function overrides/AFX_VIRTUAL(SocketClient)/AFX_VIRTUAL/ Generated message map functions/AFX_MSG(SocketClient)/ NOTE - the ClassWizard will add and remove member functions here./AFX_MSGprivate:CDialog *m_pWnd;/定义对话框类的指针变量/ Implementationprotected:virtual void OnClose(int nErrorCode);virtual void OnConnect(int nErrorCode);virtual void OnReceive(int nErrorCode);virtual void OnSend(int nErrorCode);3）添加SocketClient.cpp实现文件部分的代码（粗体字为添加的代码）#include stdafx.h#include 实验四客户端.h#include SocketClient.h#include 实验四客户端Dlg.h /头文件#ifdef _DEBUG#define new DEBUG_NEW#undef THIS_FILEstatic char THIS_FILE = _FILE_;#endif/ SocketClientSocketClient:SocketClient()SocketClient:SocketClient()/ Do not edit the following lines, which are needed by ClassWizard.#if 0BEGIN_MESSAGE_MAP(SocketClient, CAsyncSocket)/AFX_MSG_MAP(SocketClient)/AFX_MSG_MAPEND_MESSAGE_MAP()#endif/ 0/ SocketClient member functions/自定义事件，设置与对话框的关联void SocketClient:SetParent(CDialog *pWnd)m_pWnd = pWnd;/下列的Socket事件，设置其与对话框相关联，重载代码如下：void SocketClient:OnClose(int nErrorCode) / TODO: Add your specialized code here and/or call the base classif (0=nErrorCode)(CMyDlg*)m_pWnd)-OnSocketClose();void SocketClient:OnConnect(int nErrorCode) / TODO: Add your specialized code here and/or call the base classif(nErrorCode=0)(CMyDlg*)m_pWnd)-OnConnect();void SocketClient:OnReceive(int nErrorCode) / TODO: Add your specialized code here and/or call the base classif(0=nErrorCode)(CMyDlg*)m_pWnd)-OnReceive();void SocketClient:OnSend(int nErrorCode) / TODO: Add your specialized code here and/or call the base classif (0=nErrorCode)(CMyDlg*)m_pWnd)-OnSend();5、分别添加对话框类MyDlg中的函数代码1）添加“实验四客户端Dlg.h”头文件中的代码（粗体字为添加的代码）#if !defined(AFX_DLG_H_B04D474D_A01F_4D51_8808_B5E9D3DF6D0D_INCLUDED_)#define AFX_DLG_H_B04D474D_A01F_4D51_8808_B5E9D3DF6D0D_INCLUDED_#include SocketClient.h/头文件#if _MSC_VER 1000#pragma once#endif / _MSC_VER 1000/ CMyDlg dialogclass CMyDlg : public CDialog/ Constructionpublic:CMyDlg(CWnd* pParent = NULL);/ standard constructor/声明如下四个函数跟SocketClient类的事件关联。void OnSend();void OnReceive();void OnSocketClose();void OnConnect();/ Dialog Data/AFX_DATA(CMyDlg)enum IDD = IDD_MY_DIALOG ;CEditm_ctlPort;CEditm_ctlName;CButtonm_btnSend;CButtonm_btnExit;CButtonm_btnDisconn;CEditm_ctlData;CButtonm_btnConn;CButtonm_btnClear;CListBoxm_lstChat;CStringm_strChat;CStringm_strData;CStringm_strName;intm_iPort;/AFX_DATA/ ClassWizard generated virtual function overrides/AFX_VIRTUAL(CMyDlg)protected:virtual void DoDataExchange(CDataExchange* pDX);/ DDX/DDV support/AFX_VIRTUAL/ Implementationprotected:HICON m_hIcon;/ Generated message map functions/AFX_MSG(CMyDlg)virtual BOOL OnInitDialog();afx_msg void OnSysCommand(UINT nID, LPARAM lParam);afx_msg void OnPaint();afx_msg HCURSOR OnQueryDragIcon();afx_msg void OnExit();afx_msg void OnClear();afx_msg void OnClientConnect();afx_msg void OnDisConnect();afx_msg void OnMsgSend();/AFX_MSGDECLARE_MESSAGE_MAP()private:/定义客户端的SocketSocketClient m_cSocket;2）在“实验四客户端Dlg.cpp”中消息函数的代码l 单击类视图中CmyDlg类中CMyDlg(CWnd* pParent /*=NULL*/)函数，添加CMyDlg(CWnd* pParent /*=NULL*/)函数的代码（粗体字为修改的代码）CMyDlg:CMyDlg(CWnd* pParent /*=NULL*/): CDialog(CMyDlg:IDD, pParent)/AFX_DATA_INIT(CMyDlg)m_strChat = _T();m_strData = _T();m_strName = _T();m_iPort = 1001;/初始化端口/AFX_DATA_INIT/ Note that LoadIcon does not require a subsequent DestroyIcon in Win32m_hIcon = AfxGetApp()-LoadIcon(IDR_MAINFRAME);l 单击类视图中CmyDlg类中OnInitDialog()函数，添加OnInitDialog()函数的代码（粗体字为添加的代码）BOOL CMyDlg: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 AppendMenu(MF_SEPARATOR);pSysMenu-AppendMenu(MF_STRING, IDM_ABOUTBOX, strAboutMenu);/ Set the icon for this dialog. The framework does this automatically/ when the applications main window is not a dialogSetIcon(m_hIcon, TRUE);/ Set big iconSetIcon(m_hIcon, FALSE);/ Set small icon/ TODO: Add extra initialization here/初始的时候，一些控件是不可用的：m_ctlData.EnableWindow(false);m_btnSend.EnableWindow(false);m_btnDisconn.EnableWindow(false);/设置窗口标题SetWindowText(客户端程序);/设置客户端socket对象与对话框关联m_cSocket.SetParent(this);return TRUE; / return TRUE unless you set the focus to a controll 双击“退出程序”按钮，添加OnExit ()函数的代码void CMyDlg:OnExit() / TODO: Add your control notification handler code hereOnDisConnect();CDialog:OnCancel();l 双击“清除记录”按钮，添加OnClear ()函数的代码void CMyDlg:OnClear() / TODO: Add your control notification handler code here/清空列表框内容m_lstChat.SendMessage(LB_RESETCONTENT,0,0);l 双击“开启服务”按钮，添加OnStart()函数的代码void CMyDlg:OnClear() / TODO: Add your control notification handler code here/清空列表框内容m_lstChat.SendMessage(LB_RESETCONTENT,0,0);为了避免函数名重复，把“连接服务器”按钮的消息相应函数重命名为OnClientConnect