獲取數據：出口

Question

我試圖獲取維基百科數據使用Special:Export

以下是我的標記，我無法理解爲什麼它沒有進入while循環？我沒有得到任何錯誤。請幫助。

Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load 

     Dim webRequest As System.Net.HttpWebRequest = CType(System.Net.WebRequest.Create("http://en.wikipedia.org/wiki/Special:Export/Train"), HttpWebRequest) 
     webRequest.Credentials = System.Net.CredentialCache.DefaultCredentials 
     webRequest.Accept = "text/xml" 
     webRequest.UserAgent = "foo/bar" 
     Dim webResponse As System.Net.HttpWebResponse = CType(webRequest.GetResponse, HttpWebResponse) 
     Dim responseStream As System.IO.Stream = webResponse.GetResponseStream 
     Dim reader As System.Xml.XmlTextReader = New XmlTextReader(responseStream) 
     Dim NS As String = "http://www.mediawiki.org/xml/export-0.4/" 
     Dim doc As XPathDocument = New XPathDocument(reader) 
     reader.Close() 
     webResponse.Close() 
     Dim myXPathNavigator As XPathNavigator = doc.CreateNavigator 
     Dim nodesText As XPathNodeIterator = myXPathNavigator.SelectDescendants("text", NS, False) 

     While nodesText.MoveNext 
      Response.Write((nodesText.Current.InnerXml + " ")) 
     End While 
    End Sub 

Answer 1

特殊：導出應該POST'ed。請參閱Special:Export manual。

但是，你真的不應該這樣做。請使用web API client library for your language of choice並訪問export module。