4 Replies Latest reply on Dec 20, 2007 8:45 AM by andersm

    Web Service Response encoding problem

    andersm
    andersm Dec 19, 2007 3:10 PM

      Hi,
      I'm having problem with the encoding of java.lang.String in my Web Service response.
      Seems like a String in a complex data structure will be returned as ISO-8859-1 instead of UTF-8.
      If the WebMethod only returns a String it will be interpreted correctly as UTF-8. Very odd.

      I've written a small example made up of one interface:

      package se.test.webservice.bean;

@javax.jws.WebService
@javax.jws.soap.SOAPBinding(style = javax.jws.soap.SOAPBinding.Style.RPC)
public interface Text extends java.rmi.Remote {
 @javax.jws.WebMethod(operationName = "TEST1")
 String test1(@javax.jws.WebParam(name = "Text1")
 String x);

 @javax.jws.WebMethod(operationName = "TEST2")
 String[] test2(@javax.jws.WebParam(name = "Text2")
 String x);
}

      and a stateless session bean: 
      package se.test.webservice.bean;

@javax.ejb.Stateless
@javax.jws.WebService(endpointInterface = "se.test.webservice.bean.Text")
public class TextBean {
 public String test1(String x) {
 return ">" + x + "<";
 }

 public String[] test2(String x) {
 String[] returnValue = {">" + x + "<", ">" + x + "<"};
 return returnValue;
 }
}

      The jar is deployed on JBoss AS 4.2.1.GA.
      Calling method TEST1, I'm using the Web Service Explorer from within Eclipse, with a character string containing Swedish special characters "&uuml;&aring;&auml;&ouml;&Uuml;&Aring;&Auml;&Ouml;–" (I hope these will come out OK when I submit this post) the response looks fine. But calling method TEST2 with the same string will produce a response that looks like it is UTF-8 characters interpreted as ISO-8859-1: "üåäöÜÅÄ֓". Strange.

      This is the produced wsdl: 
      <definitions name='TextBeanService'
 targetNamespace='http://bean.webservice.test.se/'
 xmlns='http://schemas.xmlsoap.org/wsdl/'
 xmlns:ns1='http://jaxb.dev.java.net/array'
 xmlns:soap='http://schemas.xmlsoap.org/wsdl/soap/'
 xmlns:tns='http://bean.webservice.test.se/'
 xmlns:xsd='http://www.w3.org/2001/XMLSchema'>
 <types>
 <xs:schema targetNamespace='http://jaxb.dev.java.net/array'
 version='1.0' xmlns:xs='http://www.w3.org/2001/XMLSchema'>
 <xs:complexType final='#all' name='stringArray'>
 <xs:sequence>
 <xs:element maxOccurs='unbounded' minOccurs='0'
 name='item' nillable='true' type='xs:string' />
 </xs:sequence>
 </xs:complexType>
 </xs:schema>

 </types>
 <message name='Text_TEST2'>
 <part name='Text2' type='xsd:string'></part>
 </message>
 <message name='Text_TEST1'>
 <part name='Text1' type='xsd:string'></part>
 </message>
 <message name='Text_TEST2Response'>
 <part name='return' type='ns1:stringArray'></part>

 </message>
 <message name='Text_TEST1Response'>
 <part name='return' type='xsd:string'></part>
 </message>
 <portType name='Text'>
 <operation name='TEST1' parameterOrder='Text1'>
 <input message='tns:Text_TEST1'></input>
 <output message='tns:Text_TEST1Response'></output>
 </operation>

 <operation name='TEST2' parameterOrder='Text2'>
 <input message='tns:Text_TEST2'></input>
 <output message='tns:Text_TEST2Response'></output>
 </operation>
 </portType>
 <binding name='TextBinding' type='tns:Text'>
 <soap:binding style='rpc'
 transport='http://schemas.xmlsoap.org/soap/http' />
 <operation name='TEST1'>
 <soap:operation soapAction='' />

 <input>
 <soap:body namespace='http://bean.webservice.test.se/'
 use='literal' />
 </input>
 <output>
 <soap:body namespace='http://bean.webservice.test.se/'
 use='literal' />
 </output>
 </operation>
 <operation name='TEST2'>
 <soap:operation soapAction='' />

 <input>
 <soap:body namespace='http://bean.webservice.test.se/'
 use='literal' />
 </input>
 <output>
 <soap:body namespace='http://bean.webservice.test.se/'
 use='literal' />
 </output>
 </operation>
 </binding>
 <service name='TextBeanService'>

 <port binding='tns:TextBinding' name='TextBeanPort'>
 <soap:address
 location='http://127.0.0.1:8080/TextBeanService/TextBean' />
 </port>
 </service>
</definitions>


      This is the response from TEST1: 
      <env:Envelope xmlns:env="http://schemas.xmlsoap.org/soap/envelope/">
 <env:Header />
 <env:Body>
 <ns0:TEST1Response
 xmlns:ns0="http://bean.webservice.test.se/">
 <return>>&uuml;&aring;&auml;&ouml;&Uuml;&Aring;&Auml;&Ouml;<</return>
 </ns0:TEST1Response>
 </env:Body>
</env:Envelope>


      And the response from TEST2: 
      <env:Envelope xmlns:env="http://schemas.xmlsoap.org/soap/envelope/">
 <env:Header />
 <env:Body>
 <ns0:TEST2Response
 xmlns:ns0="http://bean.webservice.test.se/">
 <return>
 <item>>üåäöÜÅÄ֓<</item>
 <item>>üåäöÜÅÄ֓<</item>
 </return>
 </ns0:TEST2Response>
 </env:Body>
</env:Envelope>


      I hope someone can shed some light on the problem.

      I looked at the preview and of course all the characters looked like crap.
      I'll try to restore them above but if I fail the correct version of the characters should look like "üåäöÜÅÄÖ" or "&uuml;&aring;&auml;&ouml;&Uuml;&Aring;&Auml;&Ouml;" whatever version looks best.
      I wont even try to fix the TEST2-response.

      Regards,
      Anders

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