小编Mar*_*ark的帖子

尽管找到了例子，但我在这方面遇到了一些麻烦。我认为这可能是一个编码问题，但我不确定。我正在尝试以编程方式从使用 cookie 的 https 服务器下载文件（因此我使用 httpwebrequest）。我正在调试打印要检查的流的容量，但输出[原始]文件看起来不同。尝试过其他编码方式均无效。

代码：

    Sub downloadzip(strURL As String, strDestDir As String)

    Dim request As HttpWebRequest
    Dim response As HttpWebResponse

    request = Net.HttpWebRequest.Create(strURL)
    request.UserAgent = strUserAgent
    request.Method = "GET"
    request.CookieContainer = cookieJar
    response = request.GetResponse()

    If response.ContentType = "application/zip" Then
        Debug.WriteLine("Is Zip")
    Else
        Debug.WriteLine("Is NOT Zip: is " + response.ContentType.ToString)
        Exit Sub
    End If

    Dim intLen As Int64 = response.ContentLength
    Debug.WriteLine("response length: " + intLen.ToString)

    Using srStreamRemote As StreamReader = New StreamReader(response.GetResponseStream(), Encoding.Default)
        'Using ms As New MemoryStream(intLen) …