Socket通信实例
1.通信协议：
#ifndef _PROTOCOL_H__
#define _PROTOCOL_H__
namespace OurTutorial
{
struct Protocol
{
int iCmd; //type 0-文件开始 1-文件数据 2-文件结束
char buff[100];
int iUsedSize; //z
};
}
#endif
2.Client端
// SocketClient_VSDlg.cpp : implementation file
//
#include "stdafx.h"
#include "SocketClient_VS.h"
#include "SocketClient_VSDlg.h"
#include<vector>
#include <fstream>
using namespace std;
#pragma comment(lib,"ws2_32.lib")
#include <WinSock.h>
#include "rotocol.h"
#ifdef _DEBUG
#define new DEBUG_NEW
#endif
// CAboutDlg dialog used for App About
class CAboutDlg : public CDialog
{
public:
CAboutDlg();
// Dialog Data
enum { IDD = IDD_ABOUTBOX };
protected:
virtual void DoDataExchange(CDataExchange* pDX); // DDX/DDV support
// Implementation
protected:
DECLARE_MESSAGE_MAP()
};
CAboutDlg::CAboutDlg() : CDialog(CAboutDlg::IDD)
{
}
void CAboutDlg:oDataExchange(CDataExchange* pDX)
{
CDialog:oDataExchange(pDX);
}
BEGIN_MESSAGE_MAP(CAboutDlg, CDialog)
END_MESSAGE_MAP()
// CSocketClient_VSDlg dialog
CSocketClient_VSDlg::CSocketClient_VSDlg(CWnd* pParent /*=NULL*/)
: CDialog(CSocketClient_VSDlg::IDD, pParent)
{
m_hIcon = AfxGetApp()->LoadIcon(IDR_MAINFRAME);
}
void CSocketClient_VSDlg:oDataExchange(CDataExchange* pDX)
{
CDialog:oDataExchange(pDX);
}
BEGIN_MESSAGE_MAP(CSocketClient_VSDlg, CDialog)
ON_WM_SYSCOMMAND()
ON_WM_PAINT()
ON_WM_TIMER()
ON_WM_QUERYDRAGICON()
//}}AFX_MSG_MAP
ON_BN_CLICKED(IDC_BUTTON1, &CSocketClient_VSDlg::OnBnClickedButton1)
ON_BN_CLICKED(IDC_BUTTON2, &CSocketClient_VSDlg::OnBnClickedButton2)
ON_BN_CLICKED(IDC_BUTTON3, &CSocketClient_VSDlg::OnBnClickedButton3)
END_MESSAGE_MAP()
// CSocketClient_VSDlg message handlers
BOOL CSocketClient_VSDlg::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
return TRUE; // return TRUE unless you set the focus to a control
}
void CSocketClient_VSDlg::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 CSocketClient_VSDlg::OnPaint()
{
if (IsIconic())
{
CPaintDC dc(this); // device context for painting
SendMessage(WM_ICONERASEBKGND, reinterpret_cast<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 function to obtain the cursor to display while the user drags
// the minimized window.
HCURSOR CSocketClient_VSDlg::OnQueryDragIcon()
{
return static_cast<HCURSOR>(m_hIcon);
}
void CSocketClient_VSDlg::OnBnClickedButton1()
{
CString FilePathName;
CFileDialog dlg(TRUE);///TRUE为OPEN对话框，FALSE为SAVE AS对话框
if(dlg.DoModal()==IDOK)
FilePathName=dlg.GetPathName();
mFileName = FilePathName;
// TODO: Add your control notification handler code here
}
void CSocketClient_VSDlg::OnBnClickedButton2()
{
FILE* fp = fopen( mFileName.c_str(),"rb" );
if ( fp )
{
OurTutorial:rotocol stProtocol;
stProtocol.iCmd = 0;
send( mSocketFD, (char*)(&stProtocol), sizeof(stProtocol), 0 );
int iTotalSize = 0;
while( !feof(fp))
{
int iSize = 0;
int iNum = 0;
if ( iNum != SOCKET_ERROR )
{
iSize = fread( stProtocol.buff, 1, 100, fp );
}
else
{
Sleep( 200 );
}
stProtocol.iCmd = 1;
stProtocol.iUsedSize = iSize;
iNum = send( mSocketFD, (char*)(&stProtocol), sizeof(stProtocol), 0 );
iTotalSize += iSize;
}
stProtocol.iCmd = 2;
send( mSocketFD, (char*)(&stProtocol), sizeof(stProtocol), 0 );
fclose( fp );
}
// TODO: Add your control notification handler code here
}
void CSocketClient_VSDlg::OnBnClickedButton3()
{
// TODO: Add your control notification handler code here
WORD wVersionReq = MAKEWORD( 2, 2 );
WSADATA wsaData;
int err = 0;
err = WSAStartup( wVersionReq, &wsaData );
if ( err != 0 )
{
printf( "WSAStartup Failed \n");
WSACleanup();
return;
}
mSocketFD = socket( AF_INET, SOCK_STREAM, 0 );
if ( mSocketFD == SOCKET_ERROR )
{
printf( "Create Socket Failed!\n");
return;
}
hostent* hostEnty = gethostbyname( "127.0.0.1" );
if ( hostEnty == 0 )
{
return;
}
sockaddr_in s_addrData;
memset( &s_addrData, 0, sizeof( s_addrData) );
s_addrData.sin_addr.s_addr = ( (in_addr*)(hostEnty->h_addr) )->s_addr;
s_addrData.sin_family = AF_INET;
s_addrData.sin_port = htons( 44965 );
int iRet = connect( mSocketFD, (struct sockaddr*)&s_addrData,sizeof( struct sockaddr) );
if ( iRet == SOCKET_ERROR )
{
printf( "Can't Connect Server! \n");
getchar();
return;
}
}
void CSocketClient_VSDlg::OnTimer( UINT_PTR nIDEvent )
{
//TODO:
}
3.Server端：// SocketServer_VSDlg.cpp : implementation file//#include "stdafx.h"#include "SocketServer_VS.h"#include "SocketServer_VSDlg.h"#include <Windows.h>#include <iostream>#include <vector>using namespace std;#include <fstream>#define NO_FLAGS_SET 0#define PORT (u_short)44965 #define MAXBUFLEN 256#include "rotocol.h"#ifdef _DEBUG#define new DEBUG_NEW#endif// CAboutDlg dialog used for App Aboutclass CAboutDlg : public CDialog{public:CAboutDlg();// Dialog Dataenum { IDD = IDD_ABOUTBOX };protected:virtual void DoDataExchange(CDataExchange* pDX); // DDX/DDV support// Implementationprotected:DECLARE_MESSAGE_MAP()};CAboutDlg::CAboutDlg() : CDialog(CAboutDlg::IDD){}void CAboutDlg:oDataExchange(CDataExchange* pDX){CDialog:oDataExchange(pDX);}BEGIN_MESSAGE_MAP(CAboutDlg, CDialog)END_MESSAGE_MAP()// CSocketServer_VSDlg dialogCSocketServer_VSDlg::CSocketServer_VSDlg(CWnd* pParent /*=NULL*/): CDialog(CSocketServer_VSDlg::IDD, pParent){m_hIcon = AfxGetApp()->LoadIcon(IDR_MAINFRAME);}void CSocketServer_VSDlg:oDataExchange(CDataExchange* pDX){CDialog:oDataExchange(pDX);}BEGIN_MESSAGE_MAP(CSocketServer_VSDlg, CDialog)ON_WM_SYSCOMMAND()ON_WM_PAINT()ON_WM_QUERYDRAGICON()//}}AFX_MSG_MAPON_BN_CLICKED(IDC_BUTTON1, &CSocketServer_VSDlg::OnBnClickedButton1)ON_BN_CLICKED(IDC_BUTTON2, &CSocketServer_VSDlg::OnBnClickedButton2)ON_BN_CLICKED(IDC_BUTTON3, &CSocketServer_VSDlg::OnBnClickedButton3)END_MESSAGE_MAP()// CSocketServer_VSDlg message handlersBOOL CSocketServer_VSDlg::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 dialogSetIcon(m_hIcon, TRUE); // Set big iconSetIcon(m_hIcon, FALSE); // Set small icon// TODO: Add extra initialization herereturn TRUE; // return TRUE unless you set the focus to a control}void CSocketServer_VSDlg::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 CSocketServer_VSDlg::OnPaint(){if (IsIconic()){CPaintDC dc(this); // device context for paintingSendMessage(WM_ICONERASEBKGND, reinterpret_cast<WPARAM>(dc.GetSafeHdc()), 0);// Center icon in client rectangleint 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 icondc.DrawIcon(x, y, m_hIcon);}else{CDialog::OnPaint();}}// The system calls this function to obtain the cursor to display while the user drags// the minimized window.HCURSOR CSocketServer_VSDlg::OnQueryDragIcon(){return static_cast<HCURSOR>(m_hIcon);}vector<char> data;void CSocketServer_VSDlg::OnBnClickedButton1(){WSADATA Data;SOCKADDR_IN serverSockAddr;SOCKADDR_IN clientSockAddr;SOCKET severSocket;int addrLen = sizeof(SOCKADDR_IN);char buffer[MAXBUFLEN];status = WSAStartup(MAKEWORD(1,1), &Data);if (status != 0){printf( "ERROR: WSASartup unsuccessful");}memset( &serverSockAddr,0, sizeof(serverSockAddr));serverSockAddr.sin_port = htons(PORT);serverSockAddr.sin_family = AF_INET;serverSockAddr.sin_addr.s_addr = htonl(INADDR_ANY);severSocket = socket(AF_INET, SOCK_STREAM, 0);if ( severSocket == INVALID_SOCKET ){printf( "Error: socket unsuccessful");}status = bind( severSocket, (LPSOCKADDR)&serverSockAddr,sizeof(serverSockAddr) );if ( status == SOCKET_ERROR ){printf( "Error: bind unsuccessful ");}status = listen( severSocket, 1 );if ( status == SOCKET_ERROR ){printf( "ERROR: listen unsuccessful \n");}mClientSocket = accept( severSocket,(LPSOCKADDR)&clientSockAddr, &addrLen );// TODO: Add your control notification handler code here}void CSocketServer_VSDlg::OnBnClickedButton2(){CString FilePathName; CFileDialog dlg(FALSE);///TRUE为OPEN对话框，FALSE为SAVE AS对话框 if(dlg.DoModal()==IDOK) FilePathName=dlg.GetPathName(); mFileName = FilePathName;// TODO: Add your control notification handler code here}void CSocketServer_VSDlg::OnBnClickedButton3(){FILE* fp2 = NULL;char buffer[1000];int iProtocolSize = sizeof( OurTutorial:rotocol );while ( 1 ){numrcv = recv( mClientSocket, buffer, 108, NO_FLAGS_SET );if ( numrcv == iProtocolSize ){OurTutorial:rotocol* pProtocolData = (OurTutorial:rotocol*)buffer;if ( pProtocolData->iCmd == 0 ){fp2 = fopen( mFileName.c_str(), "wb");}else if ( pProtocolData->iCmd == 1 ){fwrite( pProtocolData->buff, 1, pProtocolData->iUsedSize, fp2 );}else if( pProtocolData->iCmd == 2 ){fclose( fp2 );break;}}}return;// FILE* fp = fopen( mFileName.c_str(), "wb");// if ( fp )// {// char buffer[100];// int iTotalSize = 0;// do{// numrcv = recv( mClientSocket, buffer, 100, NO_FLAGS_SET );// if ( numrcv > 0 )// {// iTotalSize += numrcv;// int iSize = fwrite( buffer, 1, 100, fp );// }// if ((numrcv == 0)||( numrcv == SOCKET_ERROR))// {// printf( "Connection terminated.\n");// status = closesocket(mClientSocket);// if ( status == SOCKET_ERROR)// {// printf( "ERROR: closesocket unsuccessful\n");//// }// status = WSACleanup();// if ( status == SOCKET_ERROR )// {// printf("ERROR: WSACleanup unsuccessful\n");//// }//// }// res = send( mClientSocket,buffer,numrcv,0 );//// if ( res == -1 )//// {//// printf( "Send Failed!\n");//// }//// }while( numrcv != 0 && numrcv != -1 );//// fclose(fp);/* }*/// TODO: Add your control notification handler code here}