无法使用XPATH

Question

获取节点值我有以下XML：

<?xml version="1.0" encoding="UTF-8"?> 
<SOAP:Envelope xmlns:SOAP="http://schemas.xmlsoap.org/soap/envelope/" SOAP:encodingStyle="http://schemas.xmlsoap.org/soap/encoding/"> 
    <SOAP:Body> 
     <performJob loadfromcache="yes"> 
     <jobName>PQIssueDetails</jobName> 
     <whiteboard> 
      <PQ> 
       <hostAddress>21212</hostAddress> 
       <hostPort>12955</hostPort> 
       <timeout>120000</timeout> 
       <trace>0</trace> 
       <readable>N</readable> 
       <userID>2121</userID> 
       <password>XXX@1</password> 
       <currentDate>8/28/2015 10:31 AM</currentDate> 
       <AWD10SP7_1orhigher>Y</AWD10SP7_1orhigher> 
       <METHOD>GET</METHOD> 
       <eao>08272015</eao> 
       <storedProcedure id="PQISSUEDETAIL"> 
        <parameter id="P_CRDATTIM"> 
        <value>2015-08-25-01.40.19.219580</value> 
        <dataType>string</dataType> 
        </parameter> 
        <parameter id="P_RECORDCD"> 
        <value>T</value> 
        <dataType>string</dataType> 
        </parameter> 
        <parameter id="P_CRNODE"> 
        <value>01</value> 
        <dataType>string</dataType> 
        </parameter> 
       </storedProcedure> 
      </PQ> 
     </whiteboard> 
     <requestNodeName>.</requestNodeName> 
     <responseNodeName>//PQ</responseNodeName> 
     <jobDB> 
      <name>PQCustomerService</name> 
      <userID>sa</userID> 
      <password>password</password> 
     </jobDB> 
     </performJob> 
    </SOAP:Body> 
</SOAP:Envelope> 

我想下<storedProcedure>标签来获得的第一个参数的<value>才有价值。

我用下面的XPATH努力，但它不工作

//PQ/storedProcedure/parameter[1]/@value 

我想我做的事情wronghere同时使用XPATH能否请你帮我在这？

Answer 1

值不归属，但标签，所以使用XPath

//PQ/storedProcedure/parameter[1]/value