Question

我发现很多主题都显示了解析XML文件的不同方法，但它没有做我想做的事情。实际上，我需要解析多个节点才能获得数据：

<data_results data_size="64">
  <data>
    <row>
      <value>192.168.53.11|</value>
      <value>22951.2138889</value>
    </row>
    <row>
      <value>192.168.99.100|</value>
      <value>22749.0361111</value>
    </row>
  </data>
</data_results>

目的是以相应的字节数/秒数取回每个IP地址，并将它们放入表中的新行。

但是如何从XML文档中获取这些信息？

感谢您的支持。

干杯。

Answer 1

你可以试试这个：

Dim xml As XDOcument = XDocument.Parse(xmlString)
Dim listRows As List<XElement> = xml.Descendants("row").ToList()

For Each node As XElement in listRows
        Dim values As List<XElement> = node.Descendants("value").ToList()
        // first value is the IP
        Dim ip As String = values(0)
        // second value is the bytes
        Dim bytes As String = values(1)
Next

尝试将C＃代码转换为VB，可能还有一两个语法错误。

Answer 2

我终于设法得到了自己的解决方案：

' Look for the tag "row" into the XML doc
Dim items4 = doc4.GetElementsByTagName("row")
Dim items5 = doc4.GetElementsByTagName("value")

    ' Parse all the XML tag with "row" and get the value for each expected attributes
    For Each item4 As System.Xml.XmlElement In items4

    ounter1 = 0

    For Each item5 As System.Xml.XmlElement In items5

        ' If it's the first value tag then it's the host IP address
        If counter1 = 0 Then

            ' Get the host IP address
            host = item4.ChildNodes(0).InnerText
            Console.WriteLine("host : " & host)

        ' If it's the second value tag then it's the number of Bytes/s
        ElseIf counter1 = 1 Then

            ' Get the host IP address
            bytesPerSec = item4.ChildNodes(1).InnerText
            Console.WriteLine("bytesPerSec : " & bytesPerSec)

        ' Otherwise it's an error
        Else

            ' Do nothing

        End If

            ' Increment counter
            counter1 = counter1 + 1

    Next

' Load the data into the target table
DataGridView10.Rows.Add(New String() {host, bytesPerSec})

VB.net解析XML节点<value> </value>

2 个答案: