Visual C++網路程式設計經典案例詳解 第2章 Winsock網路程式開發流程 TCP伺服器程式 介面初始化
阿新 • • 發佈:2018-12-10
與TCP客戶端一樣 伺服器程式啟動時需要介面初始化 不管伺服器在初始化時 還應該同時完成套接字的建立以及地址繫結等處理工作
class CTCPDlg : public CDialog { // Construction public: CTCPDlg(CWnd* pParent = NULL); // standard constructor SOCKET s,s1; //定義套接字控制代碼 sockaddr_in addr,add1; //定義套接字地址結構變數 CString str,str1; int n; // Dialog Data //{{AFX_DATA(CTCPDlg) enum { IDD = IDD_TCP_DIALOG }; // NOTE: the ClassWizard will add data members here //}}AFX_DATA // ClassWizard generated virtual function overrides //{{AFX_VIRTUAL(CTCPDlg) protected: virtual void DoDataExchange(CDataExchange* pDX); // DDX/DDV support //}}AFX_VIRTUAL // Implementation protected: HICON m_hIcon; // Generated message map functions //{{AFX_MSG(CTCPDlg) virtual BOOL OnInitDialog(); afx_msg void OnSysCommand(UINT nID, LPARAM lParam); afx_msg void OnPaint(); afx_msg HCURSOR OnQueryDragIcon(); afx_msg void OnSocket(WPARAM wParam,LPARAM lParam); afx_msg void OnSend(); //}}AFX_MSG DECLARE_MESSAGE_MAP() };
在對話方塊初始化函式中建立套接字並且將套接字繫結到本地地址
BOOL CTCPDlg::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 addr.sin_family=AF_INET; //初始化套接字地址結構 addr.sin_port=htons(80); //指定埠 addr.sin_addr.S_un.S_addr=INADDR_ANY; s=::socket(AF_INET,SOCK_STREAM,0); ::bind(s,(sockaddr*)&addr,sizeof(addr)); //繫結本地地址 ::listen(s,5);//監聽埠 ::WSAAsyncSelect(s,this->m_hWnd,WM_SOCKET,FD_ACCEPT|FD_READ); GetDlgItem(IDC_TEXT)->EnableWindow(false);//禁用訊息顯示框 // GetDlgItem(IDC_SENDTEXT)->SetWindowText("客戶端,你好!"); GetDlgItem(IDC_ADDR)->SetWindowText("伺服器監聽已經啟動!"); // GetDlgItem(IDC_TEXT)->SetWindowText("已經有1個客戶端連線上伺服器了 \r\n 客戶端1說:你好!"); GetDlgItem(IDC_TEXT)->GetWindowText(str); str+="\r\n"; GetDlgItem(IDC_SENDTEXT)->GetWindowText(str1); str+=str1; GetDlgItem(IDC_TEXT)->SetWindowText(str); return TRUE; // return TRUE unless you set the focus to a control }