课程设计简易聊天程序设计

课程设计报告课程名称：面向对象程序设计C++设计题目：简易聊天程序设计专业：计算机科学与技术姓名：金文学号：指导教师：李晓虹2015 年 1 月 10 日（一）系统需求分析用户角度考察系统应具有哪些功能及非功能性需求。

能实现用户注册、用户的登录、各客户端能连接起来，服务器能与客户端相连实现用户之间信息的发送与共享。

（二）总体设计1、初始化socket，创建服务器端2、维护一个链表，保存所有用户的IP地址、端口信息3、接受用户传送来的聊天信息，然后向链表中的所用用户转发4、接受用户传送来的连接判断命令，并向用户发出相应命令根据连接启动的方式以及本地套接字要连接的目标，套接字之间的连接过程可以分为三个步骤：服务器监听，客户端请求，连接确认。

建立服务器显示本机IP地址建立连接在另一台机器上运行聊天程序输入服务器IP地址输入名字建立聊天提示连接成功或失败进行聊天清除聊天内容断开连接退出提示连接成功进行聊天退出清除聊天关闭服务器提示有某个服务器正在连接，是否连接（三）详细设计ChatClient:运行界面：连接服务器：IDD_SENDDLG ：重要代码：void CChatClientDoc::talk(int type, CString form, CString to,CString str, COLORREF clr){CChatClientView* pView = (CChatClientView*)GetView();if(form != m_strHandle && to != m_strHandle && m_bFilter) return;CString temp,to2,first,second;if(type > 32 || type < 0)return;temp.LoadString(IDS_TALK0 + type);int i=temp.Find(",");if(i != -1){first = temp.Left(i);if(i != temp.GetLength() - 1){second = temp.Mid(i + 1);second += "：";}else{second="：";}pView->TextOut((LPCTSTR)form, RGB(0,0,255));pView->TextOut((LPCTSTR)first, RGB(0,0,0));pView->TextOut((LPCTSTR)to, RGB(0,0,255));pView->TextOut((LPCTSTR)second, RGB(0,0,0));pView->TextOut((LPCTSTR)str,clr);pView->TextOut((LPCTSTR)"\r\n",clr);}else{first=temp;second="：";pView->TextOut(form,RGB(0,0,255));pView->TextOut(first,RGB(0,0,0));pView->TextOut(second,RGB(0,0,0));pView->TextOut(str,clr);pView->TextOut("\r\n",clr);}}void CChatClientDoc::Disconnect(){msg.type = -2;msg.m_bClose = TRUE;msg.from = m_strHandle;msg.to = "所有人";msg.secret = FALSE;msg.m_strText ="Hello";msg.color = RGB(0,136,255);SendMsg();m_bConnected = FALSE;msg.from = "DUMP";GetView()->GetParent()->SendMessage(WM_ADDLIST + 1, (LPARAM)&(msg.from), msg.image);}void CChatClientView::TextOut(LPCTSTR lpszMessage, COLORREF clr){cfm.cbSize=sizeof(cfm); // CHARFORMAT cfmcfm.crTextColor=clr;cfm.dwMask=CFM_COLOR;CString strTemp = lpszMessage;int len = GetWindowTextLength();GetRichEditCtrl().SetSel(len,len);GetRichEditCtrl().SetSelectionCharFormat(cfm);GetRichEditCtrl().ReplaceSel(strTemp);}void CChatSocket::OnReceive(int nErrorCode){CSocket::OnReceive(nErrorCode);m_pDoc->ProcessPendingRead();}void CChatClientCntrItem::Dump(CDumpContext& dc) const{CRichEditCntrItem::Dump(dc);}void CLogin::DoDataExchange(CDataExchange* pDX){CDialog::DoDataExchange(pDX);//{{AFX_DATA_MAP(CLogin)DDX_CBString(pDX, IDC_IMAGE, m_strImage);DDX_CBString(pDX, IDC_NAME, m_strName);DDX_Text(pDX, IDC_SERVER, m_strServerIP);//}}AFX_DATA_MAP}BOOL CMainFrame::PreCreateWindow(CREATESTRUCT& cs) {if( !CFrameWnd::PreCreateWindow(cs) )return FALSE;cs.style &= ~WS_MAXIMIZEBOX;cs.style &= ~WS_SIZEBOX;cs.cx = 640;cs.cy = 480;return TRUE;}CMessage::CMessage(){image = 6;type = 0;secret = FALSE;color = RGB(0,136,255);m_bClose = FALSE;from = to = m_strText = _T("");}CMessage::~CMessage(){}void CMessage::Serialize(CArchive &ar){if (ar.IsStoring()){ar << type;ar << (WORD)m_bClose;ar << m_strText;ar << (WORD)secret;ar << from;如有帮助，欢迎下载。

ar << to;ar << (DWORD)color;ar << image;}else{WORD wd;DWORD dwTmp;ar >> type;ar >> wd;m_bClose = (BOOL)wd;ar >> m_strText;ar >> wd;secret = (BOOL)wd;ar >> from;ar >> to;ar >> dwTmp;color = (COLORREF)dwTmp;ar >> image;}/*m_msgList.Serialize(ar);fromlist.Serialize(ar);tolist.Serialize(ar);seclist.Serialize(ar);typelist.Serialize(ar);clrlist.Serialize(ar);*/}void CMessage::Reset(){image = 6;type = 0;secret = FALSE;color = RGB(0,136,255);m_bClose = FALSE;from = to = m_strText = _T("");/* m_msgList.RemoveAll();fromlist.RemoveAll();tolist.RemoveAll();seclist.RemoveAll();clrlist.RemoveAll();typelist.RemoveAll();*/}int COnlineBar::OnCreate(LPCREATESTRUCT lpCreateStruct){if (CDialogBar::OnCreate(lpCreateStruct) == -1)return -1;CRect rect;GetClientRect(&rect);rect.left += 8;rect.top += 15;rect.right -= 8;rect.bottom -= 8;m_ListCtrl = new COnlineList;if (!m_ListCtrl->Create(WS_CHILD | WS_VISIBLE | LVS_REPORT, rect, this, IDC_LISTBOX)){TRACE0("Failed to create view for CMyBarLeft\n");return -1;}m_ListCtrl->ModifyStyleEx(0, WS_EX_CLIENTEDGE);AddExStyle(LVS_EX_FULLROWSELECT | LVS_OWNERDRAWFIXED);int i;LV_COLUMN lvc;lvc.mask = LVCF_FMT | LVCF_WIDTH | LVCF_TEXT | LVCF_SUBITEM;CString strTemp[2] = {"名称", "IP"};int size[2] = {140,40};for(i = 0; i < 2; i++){lvc.iSubItem = i;lvc.pszText = (char*)(LPCTSTR)strTemp[i];lvc.cx = size[i];lvc.fmt = LVCFMT_LEFT;m_ListCtrl->InsertColumn(i, &lvc);}return 0;}void COnlineBar::AddExStyle(DWORD dwNewStyle){DWORD dwStyle = ::SendMessage (m_ListCtrl->m_hWnd, LVM_GETEXTENDEDLISTVIEWSTYLE, 0, 0);dwStyle |= dwNewStyle;::SendMessage (m_ListCtrl->m_hWnd, LVM_SETEXTENDEDLISTVIEWSTYLE, 0, dwStyle);}int COnlineList::OnCreate(LPCREATESTRUCT lpCreateStruct){if (CListCtrl::OnCreate(lpCreateStruct) == -1)return -1;m_imgList.Create(IDB_IMAGE, 16, 1, RGB(0, 255, 0));HIMAGELIST him = m_imgList.m_hImageList;::SendMessage(this->m_hWnd,LVM_SETIMAGELIST,(WPARAM)LVSIL_SMALL,(LPARAM )him);//::SendMessage(this->m_hWnd,LVM_SETIMAGELIST,(WPARAM)LVSIL_NORMAL,(LPAR AM)him);ImageList_SetBkColor(him,CLR_NONE);return 0;}void COnlineList::AddItem(short i, char* name, char* text){LVITEM lvi;lvi.mask = LVIF_TEXT | LVIF_IMAGE | LVIF_PARAM;lvi.iItem = GetItemCount();lvi.iImage = i;lvi.iSubItem = 0;lvi.pszText = name;hTextMax = 64;lvi.lParam = 0;InsertItem(&lvi);lvi.mask = LVIF_TEXT;lvi.pszText = text;hTextMax = 32;lvi.iSubItem = 1;SetItem(&lvi);}void COnlineList::OnDblclk(NMHDR* pNMHDR, LRESULT* pResult){NM_LISTVIEW* pNMListView = (NM_LISTVIEW*)pNMHDR;CString str;int iSel = pNMListView->iItem;if (iSel >= 0 ){str = GetItemText(iSel,0);CWnd* pParentWnd = GetParent();while (pParentWnd != NULL){if (pParentWnd->IsFrameWnd()){break;}pParentWnd = pParentWnd->GetParent();}if (pParentWnd != NULL)pParentWnd->SendMessage(WM_DBCLICKITEM, 0, (LPARAM)&str);}*pResult = 0;}void COnlineList::Remove(char *name){CString str;for(int i = 0; i < GetItemCount(); i++){str = GetItemText(i,0);if(strcmp(str, name) == 0){DeleteItem(i);break;}}}Charsrvr：菜单设计（IDR_MAINFRAME）对话框设计：IDD_ABOUTBOXIDD_CLEANSB：相关图标：相关代码：void CAboutDlg::DoDataExchange(CDataExchange* pDX) {CDialog::DoDataExchange(pDX);//{{AFX_DATA_MAP(CAboutDlg)//}}AFX_DATA_MAP}CCleanDlg::CCleanDlg(CWnd* pParent /*=NULL*/): CDialog(CCleanDlg::IDD, pParent){//{{AFX_DATA_INIT(CCleanDlg)m_cleanname = _T("");//}}AFX_DATA_INIT}// CClientSocket ConstructionCClientSocket::CClientSocket(CServerDoc* pDoc){m_pDoc = pDoc;m_nMsgCount = 0;m_pFile = NULL;m_pArchiveIn = NULL;m_pArchiveOut = NULL;needdel=false;}///////////////////////////////////////////////////////////////////////////// // CClientSocket Operationsvoid CClientSocket::Init(){m_pFile = new CSocketFile(this);m_pArchiveIn = new CArchive(m_pFile,CArchive::load);m_pArchiveOut = new CArchive(m_pFile,CArchive::store);}void CClientSocket::Abort(){if (m_pArchiveOut != NULL){m_pArchiveOut->Abort();delete m_pArchiveOut;m_pArchiveOut = NULL;}}void CClientSocket::SendMsg(CMessage* pMsg){if (m_pArchiveOut != NULL){pMsg->Serialize(*m_pArchiveOut);m_pArchiveOut->Flush();}}void CClientSocket::ReceiveMsg(CMessage* pMsg){pMsg->Serialize(*m_pArchiveIn);}///////////////////////////////////////////////////////////////////////////// // CClientSocket Overridable callbacksvoid CClientSocket::OnReceive(int nErrorCode){CSocket::OnReceive(nErrorCode);m_pDoc->ProcessPendingRead(this);}BOOL CClientSocket::HasConnectionDropped( void ){BOOL bConnDropped = FALSE;INT iRet = 0;BOOL bOK = TRUE;struct timeval timeout = { 0, 0 };fd_set readSocketSet;FD_ZERO( &readSocketSet );FD_SET( m_hSocket, &readSocketSet );iRet = ::select( 0, &readSocketSet, NULL, NULL, &timeout );bOK = (iRet > 0);if(bOK){bOK = FD_ISSET( m_hSocket, &readSocketSet );}if( bOK ){CHAR szBuffer[1] = "";iRet = ::recv( m_hSocket, szBuffer, 1, MSG_PEEK );bOK = ( iRet > 0 );if( !bOK ){INT iError = ::WSAGetLastError();bConnDropped = ( ( iError == WSAENETRESET ) ||( iError == WSAECONNABORTED ) ||( iError == WSAECONNRESET ) ||( iError == WSAEINVAL ) ||( iRet == 0 ) ); //Graceful disconnect from other side.}}return( bConnDropped );}///////////////////////////////////////////////////////////////////////////// // CSocket ImplementationCClientSocket::~CClientSocket(){if (m_pArchiveOut != NULL)delete m_pArchiveOut;if (m_pArchiveIn != NULL)delete m_pArchiveIn;if (m_pFile != NULL)delete m_pFile;}#ifdef _DEBUGvoid CClientSocket::AssertValid() const{CSocket::AssertValid();}void CClientSocket::Dump(CDumpContext& dc) const{CSocket::Dump(dc);}///////////////////////////////////////////////////////////////////////////// // CSocket ImplementationCListeningSocket::~CListeningSocket(){}#ifdef _DEBUGvoid CListeningSocket::AssertValid() const{CSocket::AssertValid();}void CListeningSocket::Dump(CDumpContext& dc) const{CSocket::Dump(dc);}LRESULT CMainFrame::WindowProc(UINT message, WPARAM wParam, LPARAM lParam) {LRESULT result = CFrameWnd::WindowProc(message, wParam, lParam);if(wParam == SC_MINIMIZE){ShowWindow(SW_HIDE);}return result;}void CMainFrame::OnClose(){Shell_NotifyIcon(NIM_DELETE, &pnid);CFrameWnd::OnClose();}void CMainFrame::OnRestore(){}void CMainFrame::OnKickout(){CServerDoc* pDoc = (CServerDoc*)GetActiveDocument();pDoc->Clean();}void CMessage::Serialize(CArchive &ar){if (ar.IsStoring()){ar << type;ar << (WORD)m_bClose;ar << m_strText;ar << (WORD)secret;ar << from;ar << to;ar << (DWORD)color;ar << image;}else{WORD wd;DWORD dwTmp;ar >> type;ar >> wd;m_bClose = (BOOL)wd;ar >> m_strText;ar >> wd;secret = (BOOL)wd;ar >> from;ar >> to;ar >> dwTmp;color = (COLORREF)dwTmp;ar >> image;}}void CServerDoc::UpdateList(CClientSocket* pSocket){CMessage* pMsg = new CMessage;for(POSITION pos = m_connectionList.GetHeadPosition(); pos != NULL;){ CClientSocket* pSock = (CClientSocket*)m_connectionList.GetNext(pos);pMsg->from = pSock->name;pMsg->type = -8;pMsg->image = pSock->image;SendMsg(pSocket, pMsg);}}void CServerView::OnDraw(CDC* pDC){CServerDoc* pDoc = GetDocument();ASSERT_VALID(pDoc);}（四）系统调试服务器的是聊天系统中很重要的部分，这个界面设计较为简单，对客服端信息的发送时，问题接二连三的出现，很多都出现异常，主要是由于在定义语句不小心出现专业术语错误。