Xml 使用VB.NET提取HTML节点的值_Xml_Vb.net_Saml_Descendant

Xml 使用VB.NET提取HTML节点的值

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Xml 使用VB.NET提取HTML节点的值,xml,vb.net,saml,descendant,Xml,Vb.net,Saml,Descendant,我正在尝试使用VB.NET提取HTML节点的值表格如下： <html> <head> <title>Submit Form</title> <meta name="referrer" content="origin"/> <meta http-equiv="x-ua-compatible" content="IE=edge" /> </head>

我正在尝试使用VB.NET提取HTML节点的值

表格如下：

<html>
    <head>
        <title>Submit Form</title>
        <meta name="referrer" content="origin"/>
        <meta http-equiv="x-ua-compatible" content="IE=edge" />
    </head>
    <body onload="javascript:document.forms[0].submit()">
       <noscript>
            <p>
                <strong>Note:</strong> Since your browser does not support JavaScript, you must press the Resume button once to proceed.
            </p>
        </noscript>
          <form method="post" action="https://test.aspx">
             <input type="hidden" name="SAMLResponse" value="123456789"/>            
             <noscript><input type="submit" value="Resume"/></noscript>
        </form>
    </body>
</html>

我已经试过了：

Dim SAMLResponse As String = CType(xmlURLDecodedXML.Descendants().Where(Function(x) x.Name.LocalName = "SAMLResponse").FirstOrDefault(), String)

在您的情况下，尝试这样做（假设：SAMLResponse的节点输入不会改变，因为属性位置也会改变）：

在html中：

<input type="hidden" name="SAMLResponse" value="123456789"/>

so

The Node Name is input
The First Attribute is Hidden
The Second Attribute is SAMLResponse
The Third Attribute is 123456789


所以
将输入节点名称
第一个属性是隐藏的
第二个属性是SAMLResponse
第三个属性是123456789

我会得到htmlagilitypack，然后您只需执行SAMLResponse=document。选择SingleNode（//input”）。tostring

    Dim myArray() As XElement = MyXelement.Descendants().ToArray
    Dim myname As String = ""
    Dim myValue As String = ""
    For a = 1 To myArray.Count
        If myArray(a - 1).Name.ToString = "input" Then
            Try
                If myArray(a - 1).Attributes.ToArray(1).Value = "SAMLResponse" Then
                    myValue = myArray(a - 1).Attributes.ToArray(2).Value
                End If
            Catch ex As Exception

            End Try
        End If
    Next

<input type="hidden" name="SAMLResponse" value="123456789"/>

so

The Node Name is input
The First Attribute is Hidden
The Second Attribute is SAMLResponse
The Third Attribute is 123456789