单位欲开发一局域网内部的学习管理系统,实现功能如下:服务器能显示客户端登陆人员人数及ID,可以与客户端通话,客户端可以提交数据至服务端的数据库,服务器可以对客户端登陆人员进行一定的控制,如:点名、踢人等。请问要开发这个系统采用vc来开发是否恰当?是否有优势?还是有别的更好的开发平台?是不是应该开发服务器端和客户端两个程序?请高手给我指点一下吧。谢谢!!!!!
解决方案 »
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你说的这个系统,功能比较简单,你只要设置好了,做起来很快的!
记住,一定要先设计,不要边做边设计,那样可能会事倍功半!
你可以设计成C/S模式的,把主要的服务功能服务器端。
现在网上类似这种功能的源码有很多,而且使用b/s模式不用去维护客户端,开发起来应该也很容易。如果测试出现什么问题,直接改一改服务器就可以了,如果用c/s出问题,每台机器可能都需要修改程序。
#include "ChatClient.h"
#include "ChatClientDlg.h"
#include "ChatSocket.h"
#include "SetupDlg.h"#ifdef _DEBUG
#define new DEBUG_NEW
#undef THIS_FILE
static char THIS_FILE[] = __FILE__;
#endif/////////////////////////////////////////////////////////////////////////////
// CAboutDlg dialog used for App Aboutclass 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()/////////////////////////////////////////////////////////////////////////////
// CChatClientDlg dialogCChatClientDlg::CChatClientDlg(CWnd* pParent /*=NULL*/)
: CDialog(CChatClientDlg::IDD, pParent)
{
//{{AFX_DATA_INIT(CChatClientDlg)
m_strMsg = _T("");
m_strClientName = _T("");
//}}AFX_DATA_INIT
// Note that LoadIcon does not require a subsequent DestroyIcon in Win32
m_hIcon = AfxGetApp()->LoadIcon(IDR_MAINFRAME);
}void CChatClientDlg::DoDataExchange(CDataExchange* pDX)
{
CDialog::DoDataExchange(pDX);
//{{AFX_DATA_MAP(CChatClientDlg)
DDX_Control(pDX, IDC_LIST_MSGS, m_ctrlMsgs);
DDX_Text(pDX, IDC_MSG, m_strMsg);
//}}AFX_DATA_MAP
}BEGIN_MESSAGE_MAP(CChatClientDlg, CDialog)
//{{AFX_MSG_MAP(CChatClientDlg)
ON_WM_SYSCOMMAND()
ON_WM_PAINT()
ON_WM_QUERYDRAGICON()
ON_BN_CLICKED(IDC_SEND, OnSend)
//}}AFX_MSG_MAP
END_MESSAGE_MAP()/////////////////////////////////////////////////////////////////////////////
// CChatClientDlg message 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 (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
//显示登录对话框
CSetupDlg dlg;
if(dlg.DoModal()==IDOK)
{
//创建一个新的Socket
m_pSocket = new CChatSocket(this);
if (!m_pSocket->Create())
{
delete m_pSocket;
m_pSocket = NULL;
AfxMessageBox("create socket failed");
return FALSE;
}
//连接服务器
while (!m_pSocket->Connect(dlg.m_strServer,dlg.m_nPort + 700))
{
if (AfxMessageBox("Failed to connect to server\nTry again?",MB_YESNO) == IDNO)
{
delete m_pSocket;
m_pSocket = NULL;
return FALSE;
}
}
m_strClientName = dlg.m_strName;
}
else
return FALSE; //发送登录消息给服务器
SendMsg("进入聊天室");
return TRUE; // return TRUE unless you set the focus to a control
}void CChatClientDlg::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 CChatClientDlg::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 CChatClientDlg::OnQueryDragIcon()
{
return (HCURSOR) m_hIcon;
}//接收数据
void CChatClientDlg::ProcessPendingRead()
{
//定义缓冲区
char buffer[BUFFER_SIZE]; //接收数据
int nReceived = m_pSocket->Receive(buffer,BUFFER_SIZE,0);
buffer[nReceived] = 0;
//将数据在列表框中显示出来
CString str;
str.Format("%s",buffer);
m_ctrlMsgs.AddString(str);
}void CChatClientDlg::OnSend()
{
UpdateData(TRUE);
SendMsg(m_strMsg);
}//发送数据到服务器
void CChatClientDlg::SendMsg(CString strMsg)
{
CString str;
str.Format("%s:%s",m_strClientName,strMsg);
m_pSocket->Send(str.GetBuffer(0),str.GetLength(),0);
}