自己写的基于MFC对话框的用于调试程序的UDP客户端服务器端程序

代码点击这里下载

服务器端截图:



客户端截图:



基于MFC对话框的MFC UPD客户端以及服务器端程序

1.服务器端

1.1服务器端点击create按钮后,程序读取设置的服务器端端口,默认端口为100,创建服务器端socket,将create的按钮变换成close按钮,并且将服务器端的地址及端口与socket bind.开启读取数据线程.

1.2当服务器读取线程接收到数据时,将保存数据源的ip地址以及端口,将数据以及数据的源在receive edit控件中显示出来,并将数据源在client中显示出来.如果是第一次接收到数据,将使能send按钮.

1.3当点击send时,将读取send edit控件中的内容并且发送.

1.4当关闭对话框时将终止读取线程.

2.客户端

2.1输入服务器端ip以及端口号后reset,即可设置发送数据的目标地址,并且开启读取数据线程读取数据,使能send按钮.

2.2按下send按钮后将读取send edit控件中的数据发送至服务器端.

2.3当接收到数据时,将在receive edit控件中显示接收的数据.

2.4当关闭对话框时,将终止读取数据线程

// UDP_ServerDlg.h : 头文件
//

#pragma once
#include "afxcmn.h"
#include "afxwin.h"
#include <WinSock2.h>

// CUDP_ServerDlg 对话框
class CUDP_ServerDlg : public CDialog
{
// 构造
public:
CUDP_ServerDlg(CWnd* pParent = NULL);	// 标准构造函数

// 对话框数据
enum { IDD = IDD_UDP_SERVER_DIALOG };

protected:
virtual void DoDataExchange(CDataExchange* pDX);	// DDX/DDV 支持

// 实现
protected:
HICON m_hIcon;

// 生成的消息映射函数
virtual BOOL OnInitDialog();
afx_msg void OnSysCommand(UINT nID, LPARAM lParam);
afx_msg void OnPaint();
afx_msg HCURSOR OnQueryDragIcon();
DECLARE_MESSAGE_MAP()
public:
afx_msg void OnBnClickedButtonCreateServer();
public:
afx_msg void OnBnClickedButtonCloseServer();
public:
// 端口号控件变量
CEdit m_editPortNO;
public:
// IP地址数组
char m_gcIP;
public:
CString tempStr;
public:
afx_msg void OnClose();
public:
CString m_strTempString;
public:
// 服务器端口号
unsigned short m_nPortNO;
public:
// 服务器端socket
SOCKET m_sockServer;
public:
// 若已经创建服务器则为true,否则为false
bool m_bServerCreated;
public:
struct sockaddr_in m_clientAddr;
public:
// 接收数据的edit控件
CEdit m_editReceive;
public:
// 接收数据控件的控件变量,str
CString m_strReceEdit;
public:
afx_msg void OnBnClickedButtonSend();
public:
// 发送edit控件变量,str
CString m_strSendData;
public:
// 若为true则终止线程
bool m_bTerminateThread;
};

// UDP_ServerDlg.cpp : 实现文件
//

#include "stdafx.h"
#include "UDP_Server.h"
#include "UDP_ServerDlg.h"

#ifdef _DEBUG
#define new DEBUG_NEW
#endif

// 用于应用程序“关于”菜单项的 CAboutDlg 对话框

class CAboutDlg : public CDialog
{
public:
CAboutDlg();

// 对话框数据
enum { IDD = IDD_ABOUTBOX };

protected:
virtual void DoDataExchange(CDataExchange* pDX);    // DDX/DDV 支持

// 实现
protected:
DECLARE_MESSAGE_MAP()
};

CAboutDlg::CAboutDlg() : CDialog(CAboutDlg::IDD)
{
}

void CAboutDlg::DoDataExchange(CDataExchange* pDX)
{
CDialog::DoDataExchange(pDX);
}

BEGIN_MESSAGE_MAP(CAboutDlg, CDialog)
END_MESSAGE_MAP()

// CUDP_ServerDlg 对话框

CUDP_ServerDlg::CUDP_ServerDlg(CWnd* pParent /*=NULL*/)
: CDialog(CUDP_ServerDlg::IDD, pParent)
, m_gcIP(0)
, tempStr(_T(""))
, m_strTempString(_T(""))
, m_nPortNO(0)
, m_bServerCreated(false)
, m_strReceEdit(_T(""))
, m_strSendData(_T(""))
, m_bTerminateThread(false)
{
m_hIcon = AfxGetApp()->LoadIcon(IDR_MAINFRAME);
}

void CUDP_ServerDlg::DoDataExchange(CDataExchange* pDX)
{
CDialog::DoDataExchange(pDX);
DDX_Control(pDX, IDC_EDIT_SERVER_PORT, m_editPortNO);
DDX_Control(pDX, IDC_EDIT_RECEIVE, m_editReceive);
DDX_Text(pDX, IDC_EDIT_RECEIVE, m_strReceEdit);
DDX_Text(pDX, IDC_EDIT_SEND, m_strSendData);
}

BEGIN_MESSAGE_MAP(CUDP_ServerDlg, CDialog)
ON_WM_SYSCOMMAND()
ON_WM_PAINT()
ON_WM_QUERYDRAGICON()
//}}AFX_MSG_MAP
ON_BN_CLICKED(IDC_BUTTON_CREATE_SERVER, &CUDP_ServerDlg::OnBnClickedButtonCreateServer)
ON_WM_CLOSE()
ON_BN_CLICKED(IDC_BUTTON_SEND, &CUDP_ServerDlg::OnBnClickedButtonSend)
END_MESSAGE_MAP()

// CUDP_ServerDlg 消息处理程序

BOOL CUDP_ServerDlg::OnInitDialog()
{
CDialog::OnInitDialog();

// 将“关于...”菜单项添加到系统菜单中。

// IDM_ABOUTBOX 必须在系统命令范围内。
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);
}
}

// 设置此对话框的图标。当应用程序主窗口不是对话框时，框架将自动
//  执行此操作
SetIcon(m_hIcon, TRUE);			// 设置大图标
SetIcon(m_hIcon, FALSE);		// 设置小图标

// TODO: 在此添加额外的初始化代码
//WSAStartup()
WSADATA	wsaData;
PHOSTENT hostinfo;
if(WSAStartup(MAKEWORD(2,2),&wsaData)!=0)
{
MessageBox("WSAStartup ERROR!");
}

//设置服务器IP地址
char gcTemp[255];
char * IP;
if (0 == gethostname(gcTemp, 255))
{
hostinfo = gethostbyname(gcTemp);
//tempStr.Format("%s", gcTemp);
//MessageBox(tempStr);
IP = inet_ntoa (*(struct in_addr *)*hostinfo->h_addr_list);
tempStr.Format(IP);
//MessageBox(IP);
SetDlgItemText(IDC_STATIC_SERVER_ADDRESS, tempStr);
//m_addServerAddress.SetAddress();
}

//设置服务器默认端口号为100
SetDlgItemText(IDC_EDIT_SERVER_PORT, "100");
m_bServerCreated = false;
m_bTerminateThread = false;
return TRUE;  // 除非将焦点设置到控件，否则返回 TRUE
}

void CUDP_ServerDlg::OnSysCommand(UINT nID, LPARAM lParam)
{
if ((nID & 0xFFF0) == IDM_ABOUTBOX)
{
CAboutDlg dlgAbout;
dlgAbout.DoModal();
}
else
{
CDialog::OnSysCommand(nID, lParam);
}
}

// 如果向对话框添加最小化按钮，则需要下面的代码
//  来绘制该图标。对于使用文档/视图模型的 MFC 应用程序，
//  这将由框架自动完成。

void CUDP_ServerDlg::OnPaint()
{
if (IsIconic())
{
CPaintDC dc(this); // 用于绘制的设备上下文

SendMessage(WM_ICONERASEBKGND, reinterpret_cast<WPARAM>(dc.GetSafeHdc()), 0);

// 使图标在工作矩形中居中
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;

// 绘制图标
dc.DrawIcon(x, y, m_hIcon);
}
else
{
CDialog::OnPaint();
}
}

//当用户拖动最小化窗口时系统调用此函数取得光标显示。
//
HCURSOR CUDP_ServerDlg::OnQueryDragIcon()
{
return static_cast<HCURSOR>(m_hIcon);
}

UINT ServerRecvThread(LPVOID lpParm )
{
CUDP_ServerDlg *dlg = (CUDP_ServerDlg*)lpParm;
char gcInBuffer[1027];
int lenth;
int size = sizeof(sockaddr_in);
CString strReceive, tempStr;
char*gcClientIP;
bool bSendEnable = false;
while(!dlg->m_bTerminateThread)
{
if ((lenth = recvfrom(dlg->m_sockServer, gcInBuffer, 1024, 0, (struct sockaddr *)&dlg->m_clientAddr, &size) )>0)
{
if (!bSendEnable)
{
CWnd *cwnd = dlg->GetDlgItem(IDC_BUTTON_SEND);
cwnd->EnableWindow(TRUE);
bSendEnable = true;
}

gcClientIP = inet_ntoa((dlg->m_clientAddr).sin_addr);
tempStr.Format("%s", gcClientIP);
dlg->SetDlgItemText(IDC_STATIC_CLINET_ADDRESS, tempStr);
tempStr.Format("%hu", dlg->m_clientAddr.sin_port);
dlg->SetDlgItemText(IDC_STATIC_CLIENT_PORTNO, tempStr);
tempStr.Format("%s:%hu: ", gcClientIP, dlg->m_clientAddr.sin_port);
strReceive += tempStr;
gcInBuffer[lenth] = '\r';
gcInBuffer[lenth+1] = '\n';
gcInBuffer[lenth+2] = '\0';
strReceive += gcInBuffer;
dlg->m_editReceive.SetWindowText(strReceive);
}
}
return 0;
}

void CUDP_ServerDlg::OnBnClickedButtonCreateServer()
{
// TODO: 在此添加控件通知处理程序代码
if (m_bServerCreated)
{
//终止线程
m_bTerminateThread = true;

m_bServerCreated = false;
m_editPortNO.EnableWindow(TRUE);
SetDlgItemText(IDC_BUTTON_CREATE_SERVER, "Create");
//disable send 按钮
CWnd * cwnd = GetDlgItem(IDC_BUTTON_SEND);
cwnd->EnableWindow(FALSE);

}
else//创建服务器端
{
//读取服务器地址以及端口号
GetDlgItemText(IDC_EDIT_SERVER_PORT, m_strTempString);
m_nPortNO = atoi(m_strTempString.GetBuffer());
//MessageBox(m_strTempString);

//socket
if ((m_sockServer = socket(AF_INET, SOCK_DGRAM, 0)) == INVALID_SOCKET)
{
MessageBox("ERROR: Create Server Socket Error!");
exit(-1);
}
//bind
struct sockaddr_in serAddr;
serAddr.sin_family = AF_INET;
serAddr.sin_port = htons(m_nPortNO);
(serAddr.sin_addr).s_addr = htonl(INADDR_ANY);
if ((bind(m_sockServer, (LPSOCKADDR)&serAddr, sizeof(serAddr)))==SOCKET_ERROR)
{
MessageBox("ERROR: Bind Socket Error!");
exit(-1);
}
//disable portno
m_editPortNO.EnableWindow(FALSE);
SetDlgItemText(IDC_BUTTON_CREATE_SERVER, "Close");
m_bServerCreated = true;

//创建线程等待
m_bTerminateThread = false;
AfxBeginThread(ServerRecvThread, this, THREAD_PRIORITY_NORMAL, 0, 0, NULL);
}

}

void CUDP_ServerDlg::OnClose()
{
// TODO: 在此添加消息处理程序代码和/或调用默认值
m_bTerminateThread = true;
closesocket(m_sockServer);
WSACleanup();
//Disable close按钮,enable create按钮
CWnd * cwnd = (GetDlgItem(IDC_BUTTON_CREATE_SERVER));
cwnd->EnableWindow(TRUE);
CDialog::OnClose();
}

void CUDP_ServerDlg::OnBnClickedButtonSend()
{
// TODO: 在此添加控件通知处理程序代码
UpdateData(TRUE);
//MessageBox(m_strSendData);
sendto(m_sockServer, m_strSendData, strlen(m_strSendData), 0, (struct sockaddr*)&m_clientAddr, sizeof(sockaddr));
}

// UDP_ClientDlg.h : 头文件
//

#pragma once
#include <WinSock2.h>
#include "afxcmn.h"
#include "afxwin.h"

// CUDP_ClientDlg 对话框
class CUDP_ClientDlg : public CDialog
{
// 构造
public:
CUDP_ClientDlg(CWnd* pParent = NULL);	// 标准构造函数

// 对话框数据
enum { IDD = IDD_UDP_CLIENT_DIALOG };

protected:
virtual void DoDataExchange(CDataExchange* pDX);	// DDX/DDV 支持

// 实现
protected:
HICON m_hIcon;

// 生成的消息映射函数
virtual BOOL OnInitDialog();
afx_msg void OnSysCommand(UINT nID, LPARAM lParam);
afx_msg void OnPaint();
afx_msg HCURSOR OnQueryDragIcon();
DECLARE_MESSAGE_MAP()
public:
afx_msg void OnBnClickedButtonResetServer();
public:
afx_msg void OnBnClickedButtonSend();
public:
CString tempStr;
public:
// 客户端socket
SOCKET m_sockClient;
public:
struct sockaddr_in m_serverAddr;
public:
afx_msg void OnClose();
public:
// 服务器端地址控件
CIPAddressCtrl m_addrServer;
public:
unsigned short m_nServerPortNo;
public:
// 若服务器ip及端口已设定则为true,否则为false
bool m_bServerSet;
public:
CString m_strServerIPPort;
public:
CEdit m_editReceive;
public:
// 控件变量,str
CString m_strSendData;
public:
// 若为true则终止线程
bool m_bTerminateThread;
};

// UDP_ClientDlg.cpp : 实现文件
//

#include "stdafx.h"
#include "UDP_Client.h"
#include "UDP_ClientDlg.h"

#ifdef _DEBUG
#define new DEBUG_NEW
#endif

// 用于应用程序“关于”菜单项的 CAboutDlg 对话框

class CAboutDlg : public CDialog
{
public:
CAboutDlg();

// 对话框数据
enum { IDD = IDD_ABOUTBOX };

protected:
virtual void DoDataExchange(CDataExchange* pDX);    // DDX/DDV 支持

// 实现
protected:
DECLARE_MESSAGE_MAP()
};

CAboutDlg::CAboutDlg() : CDialog(CAboutDlg::IDD)
{
}

void CAboutDlg::DoDataExchange(CDataExchange* pDX)
{
CDialog::DoDataExchange(pDX);
}

BEGIN_MESSAGE_MAP(CAboutDlg, CDialog)
END_MESSAGE_MAP()

// CUDP_ClientDlg 对话框

CUDP_ClientDlg::CUDP_ClientDlg(CWnd* pParent /*=NULL*/)
: CDialog(CUDP_ClientDlg::IDD, pParent)
, tempStr(_T(""))
, m_nServerPortNo(0)
, m_bServerSet(false)
, m_strSendData(_T(""))
, m_bTerminateThread(false)
{
m_hIcon = AfxGetApp()->LoadIcon(IDR_MAINFRAME);
}

void CUDP_ClientDlg::DoDataExchange(CDataExchange* pDX)
{
CDialog::DoDataExchange(pDX);
DDX_Control(pDX, IDC_IPADDRESS_SERVER, m_addrServer);
DDX_Control(pDX, IDC_EDIT_RECEIVE, m_editReceive);
DDX_Text(pDX, IDC_EDIT4, m_strSendData);
}

BEGIN_MESSAGE_MAP(CUDP_ClientDlg, CDialog)
ON_WM_SYSCOMMAND()
ON_WM_PAINT()
ON_WM_QUERYDRAGICON()
//}}AFX_MSG_MAP
ON_BN_CLICKED(IDC_BUTTON_RESET_SERVER, &CUDP_ClientDlg::OnBnClickedButtonResetServer)
ON_BN_CLICKED(IDC_BUTTON_SEND, &CUDP_ClientDlg::OnBnClickedButtonSend)
ON_WM_CLOSE()
END_MESSAGE_MAP()

// CUDP_ClientDlg 消息处理程序

BOOL CUDP_ClientDlg::OnInitDialog()
{
CDialog::OnInitDialog();

// 将“关于...”菜单项添加到系统菜单中。

// IDM_ABOUTBOX 必须在系统命令范围内。
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);
}
}

// 设置此对话框的图标。当应用程序主窗口不是对话框时，框架将自动
//  执行此操作
SetIcon(m_hIcon, TRUE);			// 设置大图标
SetIcon(m_hIcon, FALSE);		// 设置小图标

// TODO: 在此添加额外的初始化代码
m_bServerSet = false;
m_bTerminateThread = false;
//WSAStartup()
WSADATA	wsaData;
PHOSTENT hostinfo;
if(WSAStartup(MAKEWORD(2,2),&wsaData)!=0)
{
MessageBox("WSAStartup ERROR!");
}

//设置客户端IP地址及端口
//读取本机ip地址
char gcTemp[255];
char * IP;
if (0 == gethostname(gcTemp, 255))
{
hostinfo = gethostbyname(gcTemp);
//tempStr.Format("%s", gcTemp);
//MessageBox(tempStr);
IP = inet_ntoa (*(struct in_addr *)*hostinfo->h_addr_list);
tempStr.Format(IP);
//MessageBox(IP);
SetDlgItemText(IDC_STATIC_CLIENT_ADDRESS, tempStr);
//m_addServerAddress.SetAddress();
}

//create client socket
//socket
if ((m_sockClient = socket(AF_INET, SOCK_DGRAM, 0)) == INVALID_SOCKET)
{
MessageBox("ERROR: Create Client Socket Error!");
exit(-1);
}

return TRUE;  // 除非将焦点设置到控件，否则返回 TRUE
}

void CUDP_ClientDlg::OnSysCommand(UINT nID, LPARAM lParam)
{
if ((nID & 0xFFF0) == IDM_ABOUTBOX)
{
CAboutDlg dlgAbout;
dlgAbout.DoModal();
}
else
{
CDialog::OnSysCommand(nID, lParam);
}
}

// 如果向对话框添加最小化按钮，则需要下面的代码
//  来绘制该图标。对于使用文档/视图模型的 MFC 应用程序，
//  这将由框架自动完成。

void CUDP_ClientDlg::OnPaint()
{
if (IsIconic())
{
CPaintDC dc(this); // 用于绘制的设备上下文

SendMessage(WM_ICONERASEBKGND, reinterpret_cast<WPARAM>(dc.GetSafeHdc()), 0);

// 使图标在工作矩形中居中
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;

// 绘制图标
dc.DrawIcon(x, y, m_hIcon);
}
else
{
CDialog::OnPaint();
}
}

//当用户拖动最小化窗口时系统调用此函数取得光标显示。
//
HCURSOR CUDP_ClientDlg::OnQueryDragIcon()
{
return static_cast<HCURSOR>(m_hIcon);
}

UINT ClientRecvThread(LPVOID lpParm )
{
CUDP_ClientDlg *dlg = (CUDP_ClientDlg*)lpParm;
char gcInBuffer[1027];
int lenth;
int size = sizeof(sockaddr_in);
CString strReceive, tempStr;
while(!dlg->m_bTerminateThread)
{
if ((lenth = recvfrom(dlg->m_sockClient, gcInBuffer, 1024, 0, (struct sockaddr *)&dlg->m_serverAddr, &size) )>0)
{
strReceive+= dlg->m_strServerIPPort+": ";
gcInBuffer[lenth] = '\r';
gcInBuffer[lenth+1] = '\n';
gcInBuffer[lenth+2] = '\0';
strReceive += gcInBuffer;
dlg->m_editReceive.SetWindowText(strReceive);
}
}
return 0;
}

void CUDP_ClientDlg::OnBnClickedButtonResetServer()
{
// TODO: 在此添加控件通知处理程序代
//重置服务器ip地址以及端口号
m_serverAddr.sin_family = AF_INET;
//读取服务器端地址
BYTE addr[4];
m_addrServer.GetAddress(addr[0], addr[1], addr[2], addr[3]);
//读取服务器端口号
GetDlgItemText(IDC_EDIT_SERVER_PORTNO, tempStr);
m_nServerPortNo = atoi(tempStr.GetBuffer());
tempStr.Format("%d.%d.%d.%d", addr[0], addr[1], addr[2], addr[3]);
m_strServerIPPort.Format("%d.%d.%d.%d:%d", addr[0], addr[1], addr[2], addr[3], m_nServerPortNo);
//MessageBox(tempStr);
m_serverAddr.sin_port = htons(m_nServerPortNo);
m_serverAddr.sin_addr.s_addr= inet_addr(tempStr);

if (m_bServerSet)//判断是否第一次按下按钮
{
return;
}
else
{
m_bServerSet = true;
//enable send 按钮
CWnd * cwnd = GetDlgItem(IDC_BUTTON_SEND);
cwnd->EnableWindow(TRUE);

//开启接收数据线程
m_bTerminateThread = false;
AfxBeginThread(ClientRecvThread, this, THREAD_PRIORITY_NORMAL, 0, 0, NULL);
}
}

void CUDP_ClientDlg::OnBnClickedButtonSend()
{
// TODO: 在此添加控件通知处理程序代码
UpdateData(TRUE);
sendto(m_sockClient, m_strSendData, strlen(m_strSendData), 0,  (struct sockaddr*)&m_serverAddr, sizeof(sockaddr));
}

void CUDP_ClientDlg::OnClose()
{
// TODO: 在此添加消息处理程序代码和/或调用默认值
m_bTerminateThread = true;
closesocket(m_sockClient);
WSACleanup();
CDialog::OnClose();
}