用InternetOpen()的下载文件

来源：互联网发布：linux java spring 编辑：程序博客网时间：2024/06/04 17:57

这时一篇转载的文章，原作者已经被CSDN禁言了

#include<windows.h>#include<wininet.h>#include<iostream>using namespace std;#pragma comment(lib,"wininet.lib")void main(){    DWORD byteread=0;    char buffer[100];    memset(buffer,0,100);    HINTERNET internetopen;    internetopen=InternetOpen("Testing",INTERNET_OPEN_TYPE_PRECONFIG,NULL,NULL,0);    if (internetopen==NULL){        cout<<"Internet open failed!"<<endl;        return;}    HINTERNET internetopenurl;    internetopenurl=InternetOpenUrl(internetopen,"http://package6.kuaiapp.cn/201407/26/6002_887171753_1.0.0_5.0.ipa",NULL,0,INTERNET_FLAG_RELOAD,0);    if (internetopenurl==NULL){        cout<<"Internet open url failed!"<<endl;         goto there;}    BOOL hwrite = 0;    DWORD written = 0;    HANDLE createfile;    createfile=CreateFile("c:\\sss.exe",GENERIC_WRITE,0,0,CREATE_ALWAYS,FILE_ATTRIBUTE_NORMAL,0);    if (createfile==INVALID_HANDLE_VALUE){        cout<<"Create File failed!"<<endl;        goto next;}    BOOL internetreadfile = 0;    while(1){        internetreadfile=InternetReadFile(internetopenurl,buffer,sizeof(buffer),&byteread);        if(byteread==0)            break;        hwrite=WriteFile(createfile,buffer,sizeof(buffer),&written,NULL);        if (hwrite==0){            cout<<"Write to file failed!"<<endl;               goto here;}    }    cout<<"Finished downloading!"<<endl;here:    CloseHandle(createfile);next:     InternetCloseHandle(internetopenurl);there:    InternetCloseHandle(internetopen);}

0 0