如何使用vb.NET从URL读取XML数据并保存 [英] How to read XML data from a URL by using vb.NET and save

问题描述

朋友，我能够通过唱歌字节来获取XML文件，这也许会引起一些问题.您能建议我另一种方法来做同样的事情来保存XML文件吗?

Friends, I am able to get XML file by sing bytes, perhaps which is getting some problem. Can u suggest me alternate method to do the same thing to save XML file?

  Try
        Dim strUrl As String = "http://example.com" 
        Dim wr As HttpWebRequest = CType(WebRequest.Create(strUrl), HttpWebRequest)
        Dim ws As HttpWebResponse = CType(wr.GetResponse(), HttpWebResponse)
        ws.ContentType = "UTF-16"
        Dim str As Stream = ws.GetResponseStream()
        Dim inBuf(100000) As Byte
        Dim bytesToRead As Integer = CInt(inBuf.Length)
        Dim bytesRead As Integer = 0
        While bytesToRead > 0
            Dim n As Integer = str.Read(inBuf, bytesRead, bytesToRead)
            If n = 0 Then
                Exit While
            End If
            bytesRead += n
            bytesToRead -= n
        End While
        Dim fstr As New FileStream("c:/GetXml.xml", FileMode.OpenOrCreate, FileAccess.Write)
        fstr.Write(inBuf, 0, bytesRead)
        str.Close()
        fstr.Close()
    Catch ex As WebException
        Response.Write(ex.Message)
    End Try

推荐答案

为什么不只使用WebClient类及其DownloadFile方法?似乎容易得多....

Why not just use the WebClient class and its DownloadFile method?? Seems a lot easier....

这在C#中，但是将其转换为VB.NET应该没有问题:

This is in C#, but you should have no trouble converting that to VB.NET:

WebClient wc = new WebClient();
wc.DownloadFile("http://xyz", @"C:\getxml.xml");

您就完成了！

马克

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