How do I return simple object via web services

[avseq anthoy]

In the sample code listed below,I set return type as String

    
   QName QNAME_TYPE_STRING = new QName(NS_XSD, "string");
   call.setReturnType(QNAME_TYPE_STRING);

How do I set parameter that I can return simple object like Person

    
public class Person 
{
public String name;
public int age;
public double money;
}

The completed code list below.
Thanks in advance.

    
package freejavaman;
 
import javax.xml.rpc.Call;
import javax.xml.rpc.Service;
import javax.xml.rpc.JAXRPCException;
import javax.xml.namespace.QName;
import javax.xml.rpc.ServiceFactory;
import javax.xml.rpc.ParameterMode;
 
public class HelloWorld_Dynamic_Client {
 
 private static String endpoint = "http://127.0.0.1:8080/myWS/hello";
 private static String qnameService = "MyHelloWorld";
 private static String qnamePort = "HelloWorld_RPC_InterfacePort";
 private static String BODY_NAMESPACE_VALUE = "http://com.test/wsdl/MyHelloWorld";
  
 private static String ENCODING_STYLE_PROPERTY = "javax.xml.rpc.encodingstyle.namespace.uri"; 
 private static String NS_XSD = "http://www.w3.org/2001/XMLSchema";
 private static String URI_ENCODING = "http://schemas.xmlsoap.org/soap/encoding/";
 
 public static void main(String[] args) {
  try {
   ServiceFactory factory = ServiceFactory.newInstance();
   Service service = factory.createService(new QName(qnameService));
 
   QName port = new QName(qnamePort);
 
   Call call = service.createCall(port);
   call.setTargetEndpointAddress(endpoint);
   
   call.setProperty(Call.SOAPACTION_USE_PROPERTY, new Boolean(true));
   call.setProperty(Call.SOAPACTION_URI_PROPERTY, "");
   call.setProperty(ENCODING_STYLE_PROPERTY, URI_ENCODING);
   
[B]   QName QNAME_TYPE_STRING = new QName(NS_XSD, "string");
   call.setReturnType(QNAME_TYPE_STRING);[/B]
   
   call.setOperationName(new QName(BODY_NAMESPACE_VALUE, "sayHello"));
   call.addParameter("String_1", QNAME_TYPE_STRING, ParameterMode.IN);
   
   String[] params = { " Everybody" };
   String result = (String)call.invoke(params);
   
   System.out.println(result);
 
  } catch (Exception e) {
   System.out.println(e);
  }
 }
}
 

[Balaji Loganathan]

You have to use beam mapping concept of Axis.
An article on how to do this is available at http://radio.javaranch.com/balajidl/2006/03/22/1143041392434.html

[avseq anthoy]

Excuse me , I don't have to write wsdd or any other xml document to deploy my web service , because myeclipse or other IDE tools do these for me.
I wanna know about can I modify the paramters in the code so that I can get a simple object that web services return to me.

Thanks in advance.

[Watsh Rajneesh]

If you already have a WSDL mentioning Person type as return type of web method then all you should be doing is :
QName QNAME_TYPE_PERSON = new QName("<Person namespace>", "PersonType");
call.setReturnType(QNAME_TYPE_PERSON);

example: <person namespace> as defined by your service wsdl could be http://examples.org/SayHello and PersonType could be a complex type in the wsdl. Complete WSDL as i see your problem is at the end of this reply.

and you cast the result to Person type:
Person person = (Person)call.invoke(params);

You will need to have the Person java bean class defined at client.

I too am learning webservices for now.. so this is no expert comment. Please treat this reply kindly and tell me if i am mistaken in understanding your question.

The Person class can be of the kind:

public class Person {
    private String name;
    private int    age;
    private double money;
 
    public void Person(){}
 
    public String getName() { return name;}
    public void setName(String name){ this.name = name;}
 
    ...
}    

<?xml version="1.0" encoding="UTF-8"?>
<definitions name="PersonWS"
 targetNamespace="http://examples.org/Person"
 xmlns :-P	 ="http://examples.org/Person"
 xmlns:xsd="http://www.w3.org/2001/XMLSchema"
 xmlns:soapbind="http://schemas.xmlsoap.org/wsdl/soap/"
 xmlns="http://schemas.xmlsoap.org/wsdl/">
 
<types>
   <xsd:schema
    targetNamespace="http://examples.org/Person">
     <xsd:complexType name="Person">
       <xsd:sequence>
         <xsd:element name="name"           type="xsd:string"/>
         <xsd:element name="age"            type="xsd:int"/>
         <xsd:element name="money"          type="xsd :mrgreen: ouble"/>
       </xsd:sequence>
     </xsd:complexType>
  </xsd:schema>
</types>
<message name="sayHelloRequest">
  <part name="person" type="p :-P	 erson"/>
</message>
<message name="sayHelloResponse">
  <part name="param1" type="xsd:string"/>
</message>
<portType name="PersonType">
  <operation name="sayHello">
    <input message="p:sayHelloRequest"/>
    <output message="p:sayHelloResponse"/>
  </operation>
</portType>
<!-- binding tells us which protocols and encoding styles are used -->
  <binding name="Person_Binding" type="p :-P	 ersonType">
    <soapbind:binding style="rpc" 
     transport="http://schemas.xmlsoap.org/soap/http"/>
    <operation name="sayHello">
      <soapbind :-o	 peration style="rpc"
       soapAction=
       "http://examples.org/Person/SayHello"/>
        <input>
          <soapbind:body use="literal"
           namespace="http://examples.org/Person" />
        </input>
        <output>
          <soapbind:body use="literal"
           namespace="http://examples.org/Person" />
        </output>
    </operation>
  </binding>
<service name="PersonService">
  <port name="Person_Port" binding="p :-P	 erson_Binding">
    <soapbind:address location=
     "http://examples.org/Person" />
  </port>
</service>
 
</definitions>    

[Watsh Rajneesh]

Use WSDL-to-Java tools to generate support classes, even if using the dynamic proxy or DII approach.

For example, just to compile the client code, the developer must understand the WSDL for a service and generate by hand Java classes that match the parameter and return types defined in the WSDL document or, in the case of a dynamic proxy, the client-side representation of the service endpoint interface. These classes must be set up properly so that the JAX-RPC runtime can match SOAP message types to the corresponding Java objects.

Above comments are excerpted from chapter 5 of Blueprints Webservices book.

So you can either hand write the Person class or better yet have the WSDL2Java generate that for your DII client.