C# XPath Soap，如何导航到嵌入式节点

Question

在 C#、Asp.Net 中，我试图返回 BISearchResponse 中的错误节点:我能够获得在 XMLNode 中返回的 GetWireResult 节点。如何到达错误节点？

<?xml version="1.0" encoding="utf-8" ?> 
- <soap:Envelope xmlns:soap="http://schemas.xmlsoap.org/soap/envelope/"     xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema">
-     <soap:Body>
-          <GetWireResponse xmlns="http://OpenSolutions.com/">
                <GetWireResult><?xml version="1.0"?> 
                      <BISearchResponse xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema"> 
                            <Error xmlns="https://bixg.choicepoint.com/webservices/3.0"> 
                                   <Message>BI System: Failed to Login</Message> 
                                   <Code>536870917</Code>
                             </Error>
                      </BISearchResponse>  
                </GetWireResult> 
            </GetWireResponse>
       </soap:Body>
  </soap:Envelope>

我的代码:XmlDocument xmlDoc = new XmlDocument();

            xmlDoc.LoadXml(result);

            XmlNamespaceManager nsmgr = new XmlNamespaceManager(xmlDoc.NameTable);
            nsmgr.AddNamespace("soap", "http://schemas.xmlsoap.org/soap/envelope/");
            nsmgr.AddNamespace("ab", "http://OpenSolutions.com/");
            nsmgr.AddNamespace("bg", " https://bixg.choicepoint.com/webservices/3.0");
            nsmgr.AddNamespace("xsd", "http://www.w3.org/2001/XMLSchema");
            nsmgr.AddNamespace("xsi", "http://www.w3.org/2001/XMLSchema-instance");

            XmlNode xmlnode = xmlDoc.DocumentElement.SelectSingleNode("/soap:Envelope/soap:Body/ab:GetWireResponse", nsmgr);

这对这里有效。.我在此处添加 xml，但它仅在编辑模式下可见。

<?xml version="1.0" encoding="utf-8" ?> 
- <soap:Envelope xmlns:soap="http://schemas.xmlsoap.org/soap/envelope/" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema">
- <soap:Body>
- <GetWireResponse xmlns="http://OpenSolutions.com/">
  <GetWireResult><?xml version="1.0"?> <BISearchResponse xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema"> <Error xmlns="https://bixg.choicepoint.com/webservices/3.0"> <Message>BI System: Failed to Login</Message> <Code>536870917</Code> </Error> </BISearchResponse></GetWireResult> 
  </GetWireResponse>
  </soap:Body>
  </soap:Envelope>

Answer 1

在 Debug模式下，当您复制此 XML 时，请尝试选择另一个调试可视化工具，例如“文本可视化工具”。您可以单击数据提示中的放大镜图标来选择它。

我认为您的 XML 看起来像:

<?xml version="1.0" encoding="utf-8" ?>
<soap:Envelope xmlns:soap="http://schemas.xmlsoap.org/soap/envelope/" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema">
  <soap:Body>
    <GetWireResponse xmlns="http://OpenSolutions.com/">
      <GetWireResult>
        &lt;?xml version="1.0"?&gt;
        &lt;BISearchResponse xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema"&gt;
        &lt;Error xmlns="https://bixg.choicepoint.com/webservices/3.0">
        &lt;Message>BI System: Failed to Login&lt;/Message&gt;
        &lt;Code>536870917&lt;/Code&gt;
        &lt;/Error&gt;
        &lt;/BISearchResponse&gt;
      </GetWireResult>
    </GetWireResponse>
  </soap:Body>
</soap:Envelope>

或

<?xml version="1.0" encoding="utf-8" ?>
<soap:Envelope xmlns:soap="http://schemas.xmlsoap.org/soap/envelope/" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema">
  <soap:Body>
    <GetWireResponse xmlns="http://OpenSolutions.com/">
      <GetWireResult>
        <![CDATA[
        <?xml version="1.0"?>
        <BISearchResponse xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema">
          <Error xmlns="https://bixg.choicepoint.com/webservices/3.0">
            <Message>BI System: Failed to Login</Message>
            <Code>536870917</Code>
          </Error>
        </BISearchResponse>
        ]]>
      </GetWireResult>
    </GetWireResponse>
  </soap:Body>
</soap:Envelope>

没关系。因此，您可以使用以下 XPath 选择 GetWireResult:

/soap:Envelope/soap:Body/ab:GetWireResponse/ab:GetWireResult

然后将其内容加载到新的 XML 文档中并获得所需的响应。