在VB.NET中从URL保存MP3文件

Question

我正试图从服务器下载一个.mp3文件，并将其保存在VB.NET中。但是，当我这样做时，保存的文件被损坏，因为内容包含多行如下内容，下面有大量随机/奇怪的字符（我假设是音频文件的构建块）。

以下是我所看到的：http://i.troll.ws/11d37d00.png

date = "20130811_18:22:58.466";
host = "DC3APS421";
kbps = "48";
khz = "22050";

当我尝试在WMP中播放.mp3文件时，它也会说它已损坏。这是我用来下载和保存的代码

' Download the MP3 file contents
Dim request As WebRequest = WebRequest.Create("http://www.mysite.org/secure/speech/?text=Test.")
request.Credentials = CredentialCache.DefaultCredentials
Dim response As WebResponse = request.GetResponse()
Console.WriteLine(CType(response, HttpWebResponse).StatusDescription)
Dim dataStream As Stream = response.GetResponseStream()
Dim reader As New StreamReader(dataStream)
Dim responseFromServer As String = reader.ReadToEnd()
reader.Close()
response.Close()
Debug.Print("Downloaded. Saving to local Audio Cache...")
' Check and create the audio-cache directory
If (Not System.IO.Directory.Exists(WorkingDir + "audio-cache")) Then
    Debug.Print("Audio cache directory doesn't exist. Creating... ")
    System.IO.Directory.CreateDirectory(WorkingDir + "audio-cache")
    Debug.Print("Created at " + WorkingDir + "audio-cache")
End If
Dim Data As String = responseFromServer
' Save the mp3 file!
Dim fileLoc As String = WorkingDir + "audio-cache" + Mp3Hash + ".mp3"
Dim fs As FileStream = Nothing
If (Not File.Exists(fileLoc)) Then
    fs = File.Create(fileLoc)
    Using fs
    End Using
End If
If File.Exists(fileLoc) Then
    Using sw As StreamWriter = New StreamWriter(fileLoc)
        sw.Write(Data)
    End Using
End If
Debug.Print("Saved successfully to " + fileLoc)

如何从URL正确下载并在本地保存mp3文件？

Answer 1

尝试这个

Dim HttpReq As HttpWebRequest = DirectCast(WebRequest.Create("http://...."), HttpWebRequest)
        Using HttpResponse As HttpWebResponse = DirectCast(HttpReq.GetResponse(), HttpWebResponse)
            Using Reader As New BinaryReader(HttpResponse.GetResponseStream())
                Dim RdByte As Byte() = Reader.ReadBytes(1 * 1024 * 1024 * 10)
                Using FStream As New FileStream("FileName.extension", FileMode.Create)
                    FStream.Write(RdByte, 0, RdByte.Length)
                End Using
            End Using
        End Using