Question

我试图读取xml文件并将其加载到xml文档中。但是，错误提示我根级别的＆＃34;数据无效。第1行，第1位。＆＃34;我需要从xml文件中检索消息。

以下是我的代码：

Dim xmlPath as String = Server.MapPath("~/res.xml")
Dim xmlDoc as New XmlDocument
Dim fs As New FileStream(xmlPath, FileMode.Open, FileAccess.Read)

xmlDoc.Load(fs)

以下是xml文件的内容：

--uuid:8asdsddf-sdf24-asdasd-3121-asdasdasdasd
Content-Type: application/xop+xml; charset=UTF-8; type="text/xml";
Content-Transfer-Encoding: binary
Content-ID: <root.message@apache.org>

<SOAP-ENV:Envelope xmlns:SOAP-
ENV="http://schemas.xmlsoap.org/soap/envelope/"><SOAP-ENV:Header></SOAP-
ENV:Header><SOAP-ENV:Body><Status xmlns=""><Message>Success: 12345</Message></Status></SOAP-ENV:Body></SOAP-
ENV:Envelope>
--uuid:8asdsddf-sdf24-asdasd-3121-asdasdasdasd--

错误提示的原因是什么？

Answer 1

以下代码应删除文件

中的所有非xml字符串

Imports System.IO
Imports System.Xml
Module Module1
    Const FILENAME As String = "c:\temp\test.xml"
    Sub Main()
        'Dim xmlPath As String = Server.MapPath("~/res.xml")
        Dim xmlDoc As New XmlDocument
        Dim reader As New StreamReader(FILENAME)

        Dim xml As String = ""
        Dim inputLine As String = ""
        Dim foundTag = False
        While (Not reader.EndOfStream)
            inputLine = reader.ReadLine
            If foundTag = False Then
                If Not inputLine.StartsWith("<") Then Continue While
                foundTag = True
            End If

            If Not inputLine.StartsWith("--") Then
                xml = xml & inputLine
            End If
        End While

        xmlDoc.LoadXml(xml)
    End Sub

End Module

如何使用asp.net？

1 个答案: