SoapUI属性传输返回Null问题排查请求

Hey there, let's walk through the steps to fix that frustrating null return when trying to extract the value "6001305" from your new Jax-WS WSDL response in SoapUI. Since your old Axis-based WSDL worked fine, the issue almost certainly stems from differences in how Jax-WS structures responses compared to Axis. Here are the most likely fixes:

1. Fix Namespace Mismatches (Most Common Culprit) #

Jax-WS often uses stricter or different namespaces than Axis, and SoapUI's XPath queries rely on correct namespace handling to find elements. If your XPath doesn't account for this, it'll return null even if the value exists.

• Check the response's namespaces: Look at the XML response in SoapUI's "Raw" or "XML" tab—you'll see elements prefixed with something like ns1: or tns:, along with the full namespace URI in the envelope.
• Use the correct prefixed XPath: For example, if your target element is <ns:ID>6001305</ns:ID>, your XPath should be //ns:ID/text(). Don't forget to add the namespace to SoapUI's Namespace Manager (found in the property transfer window or test case settings) with the same prefix and URI from the response.
• Alternative: Ignore namespaces temporarily: If you're stuck on namespace setup, use //*[local-name()='ID']/text() as your XPath. This bypasses namespace checks and matches elements by their local name.

2. Verify the Response Structure Changed #

Jax-WS might have altered the hierarchical structure of the response compared to your old Axis WSDL. Even small changes (like an extra wrapper element) can break your XPath.

• Copy the exact XPath from the response: In SoapUI's response panel, right-click the "6001305" value and select Copy XPath. Paste this directly into your property transfer's source XPath field—this guarantees you're targeting the correct element path.
• Compare old vs new responses: Pull up a successful response from the old Axis WSDL and compare it side-by-side with the new Jax-WS response. Look for differences in element nesting, wrapper names, or attribute placements.

3. Double-Check Property Transfer Configuration #

Even if you think your setup is correct, small oversights can cause null returns:

• Confirm the source test step: Make sure you're selecting the correct test step that generates the response containing "6001305" (not a different request or empty step).
• Check target property details: Ensure you're writing to the right property (e.g., a test case property, not a project property you forgot about) and that the property type is set to String (though SoapUI usually handles this automatically).
• Verify execution order: Ensure the property transfer step runs after the request step that generates the response. If it runs before, there's no response data to extract from!

4. Debug with SoapUI's XPath Tester #

Use SoapUI's built-in tool to validate your XPath before setting up the property transfer:

1. Open the response tab of your request step.
2. Switch to the XPath tab.
3. Paste your XPath query and click Evaluate. If it returns "6001305", your XPath is good—so the issue is in the property transfer setup. If it returns null, you know to fix the XPath first.

Example Working Setup #

Suppose your Jax-WS response looks like this:

<soapenv:Envelope xmlns:soapenv="http://schemas.xmlsoap.org/soap/envelope/" xmlns:demo="http://yourcompany.com/demo">
   <soapenv:Body>
      <demo:GetUserResponse>
         <demo:UserDetails>
            <demo:UserID>6001305</demo:UserID>
         </demo:UserDetails>
      </demo:GetUserResponse>
   </soapenv:Body>
</soapenv:Envelope>

• Add namespace demo=http://yourcompany.com/demo to SoapUI's Namespace Manager.
• Use XPath //demo:UserID/text() in your property transfer.
• Make sure the property transfer runs after the GetUser request step.

This should pull the "6001305" value correctly without returning null.

内容的提问来源于stack exchange，提问作者Rob Clarke