www.gusucode.com > VC 基于Socket的HTTP协议文件下载(带进度)源码程序 > VC 基于Socket的HTTP协议文件下载(带进度)源码程序/code/TestHttpDlg.cpp
// TestHttpDlg.cpp : implementation file // #include "stdafx.h" #include "TestHttp.h" #include "TestHttpDlg.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() ///////////////////////////////////////////////////////////////////////////// // CTestHttpDlg dialog CTestHttpDlg::CTestHttpDlg(CWnd* pParent /*=NULL*/) : CDialog(CTestHttpDlg::IDD, pParent) { //{{AFX_DATA_INIT(CTestHttpDlg) m_strResponse = _T(""); m_strRequest = _T("http://ambm.ku.net"); //}}AFX_DATA_INIT // Note that LoadIcon does not require a subsequent DestroyIcon in Win32 m_hIcon = AfxGetApp()->LoadIcon(IDR_MAINFRAME); } void CTestHttpDlg::DoDataExchange(CDataExchange* pDX) { CDialog::DoDataExchange(pDX); //{{AFX_DATA_MAP(CTestHttpDlg) DDX_Control(pDX, IDC_STATIC_SPEED, m_stcSpeed); DDX_Control(pDX, IDC_EDIT1, m_edtEdit1); DDX_Control(pDX, IDC_PROGRESS1, m_ctrlProgress); DDX_Control(pDX, IDC_LIST1, m_ctrlList); DDX_Text(pDX, IDC_EDIT1, m_strResponse); DDX_Text(pDX, IDC_EDIT2, m_strRequest); //}}AFX_DATA_MAP } BEGIN_MESSAGE_MAP(CTestHttpDlg, CDialog) //{{AFX_MSG_MAP(CTestHttpDlg) ON_WM_SYSCOMMAND() ON_WM_PAINT() ON_WM_QUERYDRAGICON() //}}AFX_MSG_MAP END_MESSAGE_MAP() ///////////////////////////////////////////////////////////////////////////// // CTestHttpDlg message handlers BOOL CTestHttpDlg::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 m_ctrlProgress.ShowWindow(SW_HIDE); return TRUE; // return TRUE unless you set the focus to a control } void CTestHttpDlg::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 CTestHttpDlg::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 CTestHttpDlg::OnQueryDragIcon() { return (HCURSOR) m_hIcon; } UINT DownloadThread(void *pArg) { CTestHttpDlg *pMainWnd = (CTestHttpDlg *)pArg; CFileDialog FileDlg(FALSE); CString strFileName; if(FileDlg.DoModal() == IDOK) { strFileName = FileDlg.GetPathName(); } else { return 0; } CHttpSocket HttpSocket; CString strServer,strObject; unsigned short nPort; DWORD dwServiceType; long nLength; const char *pRequestHeader = NULL; AfxParseURL(pMainWnd->m_strRequest,dwServiceType,strServer,strObject,nPort); pRequestHeader = HttpSocket.FormatRequestHeader((LPTSTR)(LPCTSTR)strServer,(LPTSTR)(LPCTSTR)strObject,nLength); HttpSocket.Socket(); HttpSocket.Connect((LPTSTR)(LPCTSTR)strServer); HttpSocket.SendRequest(); HttpSocket.SetTimeout(10000,0); /* int nSize; HttpSocket.GetResponseHeader(nSize);*/ pMainWnd->m_edtEdit1.SetWindowText(pRequestHeader); int nLineSize = 0; char szLine[256]; while(nLineSize != -1) { nLineSize = HttpSocket.GetResponseLine(szLine,256); if(nLineSize > -1) { szLine[nLineSize] = '\0'; pMainWnd->m_ctrlList.AddString(szLine); } } char szValue[30]; HttpSocket.GetField("Content-Length",szValue,30); int nSvrState = HttpSocket.GetServerState(); int nFileSize = atoi(szValue); pMainWnd->m_ctrlProgress.ShowWindow(SW_SHOW); pMainWnd->m_ctrlProgress.SetRange(0,nFileSize / 1024); int nCompletedSize = 0; CFile DownloadFile; DownloadFile.Open(strFileName,CFile::modeCreate | CFile::modeWrite); char pData[1024]; int nReceSize = 0; DWORD dwStartTime,dwEndTime; while(nCompletedSize < nFileSize) { dwStartTime = GetTickCount(); nReceSize = HttpSocket.Receive(pData,1024); if(nReceSize == 0) { AfxMessageBox("服务器已经关闭连接."); break; } if(nReceSize == -1) { AfxMessageBox("接收数据超时."); break; } dwEndTime = GetTickCount(); DownloadFile.Write(pData,nReceSize); nCompletedSize += nReceSize; pMainWnd->m_ctrlProgress.SetPos(nCompletedSize / 1024); //Speed CString strSpeed; //strSpeed.Format("%d",dwStartTime -dwEndTime); strSpeed.Format("%d",nReceSize); pMainWnd->m_stcSpeed.SetWindowText(strSpeed); } DownloadFile.Close(); pMainWnd->m_ctrlProgress.ShowWindow(SW_HIDE); pMainWnd->m_ctrlProgress.SetPos(0); return 0; } void CTestHttpDlg::OnOK() { UpdateData(); AfxBeginThread(DownloadThread,(void *)this); }