关于HttpQueryInfo的问题

2019-02-03 02:11:41 1.9k 阅读 AI 写同款 · GEO 优化AI 选题数据监测一键分发 ›

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WINAPI Http、Https 服务器操作（一）微软的api中用于操作http的函数有如下： InternetOpen; //打开代理服务器 InternetConnect; //连接服务器 HttpOpenRequest;//创建要请求的对象 HttpSendRequest;//发送请求 HttpQueryInfo;//查询请求反馈结果 InternetCloseHandle;//关闭句柄（https://msdn 阅读详情

代码（查错部分已略去）



        HINTERNET hInt = InternetOpenA( UA , INTERNET_OPEN_TYPE_DIRECT , NULL , NULL , 0 );

	if( hInt == NULL ){

		return 1;

	}

	HINTERNET hConn = InternetConnect( hInt , "dl.hdslb.com" , INTERNET_DEFAULT_HTTPS_PORT , NULL , NULL , INTERNET_SERVICE_HTTP , 0 , 0 );

	if( hConn == NULL ){

        return 1;

	}

	// https://dl.hdslb.com/mobile/latest/iBiliPlayer-bili.apk

    HINTERNET hTar = HttpOpenRequestA( hConn , "GET" , "/mobile/latest/iBiliPlayer-bili.apk" , "HTTP/1.1" , NULL , NULL , INTERNET_FLAG_RELOAD , 0 );

    if( hTar == NULL ){

        return 1;

    }

    if( TRUE != HttpSendRequestA( hTar , NULL , 0 , NULL , 0 ) ){

        return 1;

    }

    CHAR dwContLength1[200];

    ZeroMemory( dwContLength1 , 200 );

    DWORD dwContLenBufLen;

    if( TRUE != HttpQueryInfo( hTar , HTTP_QUERY_CONTENT_LENGTH , dwContLength1 , &dwContLenBufLen , NULL ) ){

        return 1;

    }

    DWORD dwContLength = atol(dwContLength1);

    cout << "Buf length=" << dwContLenBufLen << endl;

    cout << "Returned " << dwContLength1 << endl;

    cout << "Length got!\n" << "app size=" << dwContLength << " Bytes\n" << "app size=" << dwContLength / (1024*1024) << " MiB\n";

	InternetCloseHandle( hConn );

	InternetCloseHandle( hInt );

	getch();

从浏览器上下载https://dl.hdslb.com/mobile/latest/iBiliPlayer-bili.apk的时候获得的apk大小是76.2MiB，然而HttpQueryInfo的时候获得的是673 Bytes，请大虾们赐教哪里出了问题
注：错误处理已省略（怕各位大虾不想看这种冗余的东西）