Java DataPower WebServiceProxy数据选择

我在寻找解决问题的办法。我将从一个示例开始：我们有一个返回userData（userName+userAddress）的SOAP Web服务，我使用Web服务代理来提取userData，但是我只想接收userName，这也需要通过DataPower完成。如何做到这一点？我正在考虑添加另一个Web服务代理，但是如何向只选择用户名的应用程序添加逻辑？dp中是否有任何消息转换

UsersCatalog.wsdl

<?xml version="1.0" encoding="UTF-8"?>
<wsdl:definitions targetNamespace="http://wtp" xmlns:apachesoap="http://xml.apache.org/xml-soap" xmlns:impl="http://wtp" xmlns:intf="http://wtp" xmlns:wsdl="http://schemas.xmlsoap.org/wsdl/" xmlns:wsdlsoap="http://schemas.xmlsoap.org/wsdl/soap/" xmlns:xsd="http://www.w3.org/2001/XMLSchema">
<!--WSDL created by Apache Axis version: 1.4
Built on Apr 22, 2006 (06:55:48 PDT)-->
 <wsdl:types>
  <schema elementFormDefault="qualified" targetNamespace="http://wtp" xmlns="http://www.w3.org/2001/XMLSchema">
   <element name="getUserData">
    <complexType/>
   </element>
   <element name="getUserDataResponse">
    <complexType>
     <sequence>
      <element maxOccurs="unbounded" name="getUserDataReturn" type="xsd:string"/>
     </sequence>
    </complexType>
   </element>
   <element name="setUserData">
    <complexType>
     <sequence>
      <element name="userName" type="xsd:string"/>
      <element name="userAddress" type="xsd:string"/>
     </sequence>
    </complexType>
   </element>
   <element name="setUserDataResponse">
    <complexType/>
   </element>
  </schema>
 </wsdl:types>

   <wsdl:message name="setUserDataResponse">

      <wsdl:part element="impl:setUserDataResponse" name="parameters">

      </wsdl:part>

   </wsdl:message>

   <wsdl:message name="getUserDataRequest">

      <wsdl:part element="impl:getUserData" name="parameters">

      </wsdl:part>

   </wsdl:message>

   <wsdl:message name="setUserDataRequest">

      <wsdl:part element="impl:setUserData" name="parameters">

      </wsdl:part>

   </wsdl:message>

   <wsdl:message name="getUserDataResponse">

      <wsdl:part element="impl:getUserDataResponse" name="parameters">

      </wsdl:part>

   </wsdl:message>

   <wsdl:portType name="UsersCatalog">

      <wsdl:operation name="getUserData">

         <wsdl:input message="impl:getUserDataRequest" name="getUserDataRequest">

       </wsdl:input>

         <wsdl:output message="impl:getUserDataResponse" name="getUserDataResponse">

       </wsdl:output>

      </wsdl:operation>

      <wsdl:operation name="setUserData">

         <wsdl:input message="impl:setUserDataRequest" name="setUserDataRequest">

       </wsdl:input>

         <wsdl:output message="impl:setUserDataResponse" name="setUserDataResponse">

       </wsdl:output>

      </wsdl:operation>

   </wsdl:portType>

   <wsdl:binding name="UsersCatalogSoapBinding" type="impl:UsersCatalog">

      <wsdlsoap:binding style="document" transport="http://schemas.xmlsoap.org/soap/http"/>

      <wsdl:operation name="getUserData">

         <wsdlsoap:operation soapAction=""/>

         <wsdl:input name="getUserDataRequest">

            <wsdlsoap:body use="literal"/>

         </wsdl:input>

         <wsdl:output name="getUserDataResponse">

            <wsdlsoap:body use="literal"/>

         </wsdl:output>

      </wsdl:operation>

      <wsdl:operation name="setUserData">

         <wsdlsoap:operation soapAction=""/>

         <wsdl:input name="setUserDataRequest">

            <wsdlsoap:body use="literal"/>

         </wsdl:input>

         <wsdl:output name="setUserDataResponse">

            <wsdlsoap:body use="literal"/>

         </wsdl:output>

      </wsdl:operation>

   </wsdl:binding>

   <wsdl:service name="UsersCatalogService">

      <wsdl:port binding="impl:UsersCatalogSoapBinding" name="UsersCatalog">

         <wsdlsoap:address location="http://localhost/WebServiceProject/services/UsersCatalog"/>

      </wsdl:port>

   </wsdl:service>

</wsdl:definitions>

我听说datapower中有一种叫做消息转换的东西。如果我可以选择xml实体来返回，这将非常简单

我将添加更多内容以更好地指定我的需求：

<soapenv:Envelope xmlns:soapenv="http://schemas.xmlsoap.org/soap/envelope/" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
   <soapenv:Body>
      <getUserDataResponse xmlns="http://wtp">
         <getUserDataReturn>John</getUserDataReturn>
         <getUserDataReturn>New York</getUserDataReturn>
      </getUserDataResponse>
   </soapenv:Body>
</soapenv:Envelope>

约翰
纽约

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这就是我收到的，我希望DataPower以某种方式将其转换为仅返回第一行-仅返回用户名John。如何获得这样的结果？

您可以使用转换操作和XSLT来实现这一要求。创建Web服务代理（WSP）时，会自动为每个操作创建一个处理规则。您可以在WSP的策略选项卡中查看这些处理规则。您可以向为getUserData操作创建的规则添加转换操作

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要了解如何创建XSLT以从XML中排除元素，可以查看

请显示使用当前代码添加请求的代码

<soapenv:Envelope xmlns:soapenv="http://schemas.xmlsoap.org/soap/envelope/" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
   <soapenv:Body>
      <getUserDataResponse xmlns="http://wtp">
         <getUserDataReturn>John</getUserDataReturn>
         <getUserDataReturn>New York</getUserDataReturn>
      </getUserDataResponse>
   </soapenv:Body>
</soapenv:Envelope>