Please help with web services (JSR 172)

Question

Hello!
I'm in need of some help. I've only worked with web services some few weeks. I have two web services that I want to access from J2ME.
Both works nice in regular Java (J2SE). I use axis so with the help of WSDL2Java I got a working client.
One of them has four operations
    public boolean tryToLoginUser( String username, String password ) {}   
    public boolean tryToLogOffUser( String username, String password ){}
    public boolean createUserAccount( String username, String password ){ }
    public boolean removeUserAccount( String username, String password ){ } The problem is when I want to use Sun's Wireless Toolkit 2.2 and create stubs that way with the Stub Generator. It complains with this
warning: Operation tryToLoginUser is of the wrong encoding SOAP style/use (rpc/encoded).  Document/literal only.  Skipping generation of operation.
warning: Operation tryToLogOffUser is of the wrong encoding SOAP style/use (rpc/encoded).  Document/literal only.  Skipping generation of operation.
warning: Operation createUserAccount is of the wrong encoding SOAP style/use (rpc/encoded).  Document/literal only.  Skipping generation of operation.
warning: Operation removeUserAccount is of the wrong encoding SOAP style/use (rpc/encoded).  Document/literal only.  Skipping generation of operation.What I can tell is I need to put this in my axis deployment descriptor
<service name="UserWebService" provider="java:RPC" style="document" use="literal">instead of this:
<service name="UserWebService" provider="java:RPC">This wont work. It don't work with HTTP GET I get this error
  <?xml version="1.0" encoding="UTF-8" ?>
- <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>
- <soapenv:Fault>
  <faultcode>soapenv:Server.userException</faultcode>
  <faultstring>org.xml.sax.SAXException: SimpleDeserializer encountered a child element, which is NOT expected, in something it was trying to deserialize.</faultstring>
- <detail>
  <ns1:hostname xmlns:ns1="http://xml.apache.org/axis/">slukare</ns1:hostname>
  </detail>
  </soapenv:Fault>
  </soapenv:Body>
  </soapenv:Envelope>I doesn�t work with WSDL2Java and when I run Sun's Wireless Toolkit 2.2 to generate stub it complains with
warning: ignoring operation "tryToLoginUser": more than one part in input message
warning: ignoring operation "tryToLogOffUser": more than one part in input message
warning: ignoring operation "createUserAccount": more than one part in input message
warning: ignoring operation "removeUserAccount": more than one part in input message
warning: Port "UserWebService" does not contain any usable operationsDoes this mean I can only use one parameter for input in an operation when I use style="document" use="literal" ??
I understood it that way, so I created a new web service that takes username and password in one String.
The new web service has four operations
    public boolean tryToLoginUser( String usernameAndPassword ) {}   
    public boolean tryToLogOffUser( String usernameAndPassword ){}
    public boolean createUserAccount( String usernameAndPassword ){ }
    public boolean removeUserAccount( String usernameAndPassword ){ }The problem is that I get this error when running HTTP GET.
  <?xml version="1.0" encoding="UTF-8" ?>
- <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>
- <soapenv:Fault>
  <faultcode>soapenv:Server.userException</faultcode>
  <faultstring>org.xml.sax.SAXException: SimpleDeserializer encountered a child element, which is NOT expected, in something it was trying to deserialize.</faultstring>
- <detail>
  <ns1:hostname xmlns:ns1="http://xml.apache.org/axis/">slukare</ns1:hostname>
  </detail>
  </soapenv:Fault>
  </soapenv:Body>
  </soapenv:Envelope>If I get a WSDL2Java client it works (!) if I manually changes the parameter names. I have four operations which all takes
String usernameAndPassword
in one String since I can only use one parameter with style="document" use="literal"
The WSDL2Java automatically set the parameter names to
usernameAndPassword
usernameAndPassword1
usernameAndPassword2
usernameAndPassword3
for the different operations. If I manually changes them to all have the name
usernameAndPassword
it works. Why doesn�t it work without manual changes? I haven�t tested the code from Sun�s Wireless Toolkit 2.2 Stub Generator yet, but that at least doesn�t give any errors .
My other web service doesn�t work either if I set style="document" use="literal".
This web service returns my own classes I have written. It works as I said previously in J2SE with WSDL2Java, but not with style="document" use="literal�. When I set this my byte[] which is returned is null when using the client from WSDL2Java, this wasn�t the case without style="document" use="literal�.
I also get an error in Sun�s Wireless Toolkit 2.2 that byte[] is not recoigniced. This wasn�t the case with axis WSDL2Java.
If I put this inside the axis deployment descriptor
<deployment xmlns="http://xml.apache.org/axis/wsdd/"
         xmlns:java="http://xml.apache.org/axis/wsdd/providers/java">
       <service xmlns:j2melab2="urn:businessobject.j2melab2"
                 name="RecipeWebService" provider="java:RPC" style="document" use="literal">
          <parameter name="scope" value="session"/>
          <parameter name="className" value="j2melab2.webservices.RecipeWebService"/>
          <parameter name="allowedMethods" value="*"/>
                <typeMapping qname="j2melab2:ArrayOfString"
                             type="java:java.lang.String[]"
                             serializer="org.apache.axis.encoding.ser.ArraySerializerFactory"
                             deserializer="org.apache.axis.encoding.ser.ArrayDeserializerFactory"
                             encodingStyle="http://schemas.xmlsoap.org/soap/encoding"/>
                <beanMapping qname="j2melab2:Recipe" languageSpecificType="java:j2melab2.businessobject.Recipe"/>         
                <beanMapping qname="j2melab2:Ingredient" languageSpecificType="java:j2melab2.businessobject.Ingredient"/>         
                <typeMapping qname="j2melab2:ArrayofIngredient"
                             type="java:j2melab2.businessobject.Ingredient[]"
                             serializer="org.apache.axis.encoding.ser.ArraySerializerFactory"
                             deserializer="org.apache.axis.encoding.ser.ArrayDeserializerFactory"
                             encodingStyle="http://schemas.xmlsoap.org/soap/encoding"/>
                <typeMapping qname="j2melab2:ArrayOfByte"
                             type="byte[]"
                             serializer="org.apache.axis.encoding.ser.ArraySerializerFactory"
                             deserializer="org.apache.axis.encoding.ser.ArrayDeserializerFactory"
                             encodingStyle="http://schemas.xmlsoap.org/soap/encoding"/>                            
     </service>
</deployment>instead of this
<deployment xmlns="http://xml.apache.org/axis/wsdd/"
         xmlns:java="http://xml.apache.org/axis/wsdd/providers/java">
       <service xmlns:j2melab2="urn:businessobject.j2melab2"
                 name="RecipeWebService" provider="java:RPC">
          <parameter name="scope" value="session"/>
          <parameter name="className" value="j2melab2.webservices.RecipeWebService"/>
          <parameter name="allowedMethods" value="*"/>
                <typeMapping qname="j2melab2:ArrayOfString"
                             type="java:java.lang.String[]"
                             serializer="org.apache.axis.encoding.ser.ArraySerializerFactory"
                             deserializer="org.apache.axis.encoding.ser.ArrayDeserializerFactory"
                             encodingStyle="http://schemas.xmlsoap.org/soap/encoding"/>
                <beanMapping qname="j2melab2:Recipe" languageSpecificType="java:j2melab2.businessobject.Recipe"/>         
                <beanMapping qname="j2melab2:Ingredient" languageSpecificType="java:j2melab2.businessobject.Ingredient"/>         
                <typeMapping qname="j2melab2:ArrayofIngredient"
                             type="java:j2melab2.businessobject.Ingredient[]"
                             serializer="org.apache.axis.encoding.ser.ArraySerializerFactory"
                             deserializer="org.apache.axis.encoding.ser.ArrayDeserializerFactory"
                             encodingStyle="http://schemas.xmlsoap.org/soap/encoding"/>
     </service>
</deployment>axis WSDL2Java won�t work anymore. And Sun�s Wireless Toolkit doesn�t work either with this. How can I get this to work with Sun�s Wireless Toolkit 2.2?
So my questions are:
Do I really need style=�document� use=�literal� for J2ME?
Can I only have one parameter as input when I use style=�document� use=�literal� ?
Why do I need to manally change the parameter names?
How can I make Sun�s Wireless Toolkit 2.2 understand byte[] ?
Many thanks for help :) (I have to present a solution in 1 � week to my J2ME teacher L).

Answer 1

hi,
i was wandering if you manage to successfully generate the stubs through the wireless toolkit at the end? i am currently having similar problem (i.e., trying to generate stub files based on wsdl from axis)? it seems that the WTK can only handle document/literal format, and so i change the wsdl to that. however, now it complains that it can't handle more than one input part in the message, (which is similar to the problem you had). so did you manage to find a solution to that, or J2ME simply does not support more than one arguement as the input?
thanks in advance,
lee