vc++实现文件传送

发送

#include <stdio.h>

#include <winsock2.h>

#pragma comment(lib, "ws2_32.lib")

void main() {

// 初始化

WSADATA wsaData;

int iResult = WSAStartup( MAKEWORD(2,2), &wsaData );

if ( iResult != NO_ERROR )

printf("Error at WSAStartup()/n");

// 建立socket

SOCKET server;

server = socket( AF_INET, SOCK_STREAM, IPPROTO_TCP );

if ( server == INVALID_SOCKET ) {

printf( "Error at socket(): %ld/n", WSAGetLastError() );

WSACleanup();

return;

}

// 绑定socket

sockaddr_in service;

service.sin_family = AF_INET;

service.sin_addr.s_addr = inet_addr( "127.0.0.1" );

service.sin_port = htons(8000);

if ( bind( server, (SOCKADDR*) &service, sizeof(service) ) == SOCKET_ERROR ) {

printf( "bind() failed./n" );

closesocket(server);

return;

}

// 监听 socket

if ( listen( server, 1 ) == SOCKET_ERROR )

printf( "Error listening on socket./n");

// 接受连接

SOCKET AcceptSocket;

printf( "Waiting for a client to connect.../n" );

while (1) {

AcceptSocket = SOCKET_ERROR;

while ( AcceptSocket == SOCKET_ERROR ) {

AcceptSocket = accept( server, NULL, NULL );

}

printf( "Client Connected./n");

server = AcceptSocket;

break;

}

// 发送接受数据

// int bytesSent;

char sendbuf[1024];//发送缓冲区

//DWORD dwFileSize;//文件大小

DWORD dwRead;

BOOL bRet;

char filename[]="c://MyMain.java";

HANDLE hFile=CreateFile(filename,GENERIC_READ,0,0,OPEN_EXISTING,FILE_ATTRIBUTE_NORMAL,0);

//dwFileSize=GetFileSize(hFile,NULL);

while(true)

{

bRet=ReadFile(hFile,sendbuf,1024,&dwRead,NULL);

if(bRet==FALSE)

{

MessageBox(NULL,"Read Buf ERROR!","Error",MB_OK);

break;

}

else if(dwRead==0)

{

MessageBox(NULL,"Send file OK!","OK",MB_OK);

break;

}

else

{

send(server,sendbuf,dwRead,0);

}

};

CloseHandle(hFile);

return;

}

接收

#include <stdio.h>

#include <winsock2.h>

#pragma comment(lib, "ws2_32.lib")

void main() {

// 初始化 Winsock.

WSADATA wsaData;

int iResult = WSAStartup( MAKEWORD(2,2), &wsaData );

if ( iResult != NO_ERROR )

printf("Error at WSAStartup()/n");

// 建立socket socket.

SOCKET client;

client = socket( AF_INET, SOCK_STREAM, IPPROTO_TCP );

if ( client == INVALID_SOCKET ) {

printf( "Error at socket(): %ld/n", WSAGetLastError() );

WSACleanup();

return;

}

// 连接到服务器.

sockaddr_in clientService;

clientService.sin_family = AF_INET;

clientService.sin_addr.s_addr = inet_addr( "127.0.0.1" );

clientService.sin_port = htons( 8000 );

if ( connect( client, (SOCKADDR*) &clientService, sizeof(clientService) ) == SOCKET_ERROR) {

printf( "Failed to connect./n" );

WSACleanup();

return;

}

char recvbuf[1024];//发送缓冲区

int read;

DWORD dwWrite;

BOOL bRet;

// 发送并接收数据.

char filename[]="c://syn.txt";

HANDLE hFile=CreateFile(filename,GENERIC_WRITE,0,0,CREATE_ALWAYS,FILE_ATTRIBUTE_NORMAL,0);

while(true)

{

read=recv( client, recvbuf, 1024, 0 );

if(read==-1)break;

bRet=WriteFile(hFile,recvbuf,read,&dwWrite,NULL);

if(bRet==FALSE)

{

MessageBox(NULL,"Write Buf ERROR!","Error",MB_OK);

break;

}

}

MessageBox(NULL,"Receive file OK!","OK",MB_OK);

return;

}

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