javax.xml.rpc.JAXRPCException: Cannot obtain operation meta
Hi Folks
I am trying to resolve a problem a few days and I am stuck here. I am relatively new to webservices and trying to figure out what is the problem. I am using JBoss 4.0.5 GA which has bundled JBossWS 1.4. When I run a webservice client I get an error. Note: I have used "+++" to seperate peices of Source Code
Will appreciate if some one could point me to the problem. I am assuming that there is a problem is with some mapping file ,because I am able to invoke the sayHello method via the second method . Also I read same kind of problem faced by another person,but had no reply posted
http://lists.jboss.org/pipermail/jbossws-users/2007-January/001196.html
Note - I picked up the server code from example stated in the URL below
http://www.soapui.org/jbossws/topdown_example.html
Thanks a ton in advance
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ERROR
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Contacting webservice at http://localhost:8080/HelloWorld
output:Hello How are you, Kapilesh!
Exception in thread "main" javax.xml.rpc.JAXRPCException: Cannot obtain operation meta data for: {http://localhost:8080/HelloWorld}sayHello
at org.jboss.ws.jaxrpc.CallImpl.getOperationMetaData(CallImpl.java:840)
at org.jboss.ws.jaxrpc.CallImpl.getOperationMetaData(CallImpl.java:820)
at org.jboss.ws.jaxrpc.CallImpl.invokeInternal(CallImpl.java:618)
at org.jboss.ws.jaxrpc.CallImpl.invoke(CallImpl.java:404)
at helloworld.client.HelloClient.main(HelloClient.java:50)
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I am invoking the webservice in 2 ways . One fetching the remote interface and one use a CallImpl
My client code is as follows :-
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package helloworld.client;
import helloworld.*;
import javax.xml.rpc.Service;
import javax.xml.rpc.Call;
import javax.xml.rpc.ServiceFactory;
import org.jboss.ws.jaxrpc.ServiceImpl;
import org.jboss.ws.jaxrpc.CallImpl;
import org.jboss.ws.jaxrpc.encoding.*;
import javax.xml.namespace.QName;
import java.net.URL;
public class HelloClient
{
public static void main(String[] args)
throws Exception
{
String TARGET_NAMESPACE = "http://localhost:8080/HelloWorld";
String argument = "Kapilesh";
System.out.println("Contacting webservice at " + TARGET_NAMESPACE );
ServiceFactory factory = ServiceFactory.newInstance();
URL wsdlLoction = new URL(TARGET_NAMESPACE+"?wsdl");
QName serviceName = new QName(TARGET_NAMESPACE,
"HelloWorldService");
ServiceImpl service = (ServiceImpl)factory.createService(wsdlLoction, serviceName);
QName operationName = new QName(TARGET_NAMESPACE, "sayHello");
//first method
IHelloWorld hello = (IHelloWorld) service.getPort(IHelloWorld.class);
// System.out.println("hello.hello(" + argument + ")");
System.out.println("output:" + hello.sayHello(argument));
CallImpl call = (CallImpl)service.createCall();
call.setOperationName(operationName);
// System.out.println(call.isParameterAndReturnSpecRequired(operationName));
// second method
Object retObj = call.invoke(new Object[]{argument});
}
}
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I have deployed a webservice on a server and I am able to deploy it sucessfully...
15:08:30,968 WARN [PortComponentMetaData] <wsdl-port> element in webservices.xml not namespace qualified: HelloWorldPort
15:08:31,437 WARN [JSR109ServerMetaDataBuilder] Adding wsdl targetNamespace to: {http://localhost:8080/HelloWorld/}HelloWorldPort
15:08:31,812 INFO [TomcatDeployer] deploy, ctxPath=/HelloWorld, warUrl=.../tmp/deploy/tmp52320HelloWorld-exp.war/
15:08:32,062 INFO [WSDLFilePublisher] WSDL published to: file:/C:/jboss-4.0.5.GA/server/default/data/wsdl/HelloWorld.war/HelloWorld.wsdl
15:08:32,093 INFO [ServiceEndpointManager] WebService started: http://localhost:8080/HelloWorld
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On the server side I have the following files deployed
WEB-INF/classes/helloworld/HelloWorldService.class
WEB-INF/classes/helloworld/IHelloWorld.class
WEB-INF/classes/helloworld/impl/HelloWorld.class
WEB-INF/classes/HelloWorld-mapping.xml
WEB-INF/HelloWorld-mapping.xml
WEB-INF/jaxrpc-mapping.xml
WEB-INF/web.xml
WEB-INF/webservices.xml
WEB-INF/wsdl/HelloWorld.wsdl
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webservices.xml
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<?xml version="1.0" encoding="UTF-8"?>
<webservices version="1.1" xsi:schemaLocation="http://java.sun.com/xml/ns/j2ee" xmlns="http://java.sun.com/xml/ns/j2ee" xmlns:impl="http://localhost:8080/HelloWorld/" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
<webservice-description>
<webservice-description-name>HelloWorld</webservice-description-name>
<wsdl-file>WEB-INF/wsdl/HelloWorld.wsdl</wsdl-file>
<jaxrpc-mapping-file>WEB-INF/HelloWorld-mapping.xml</jaxrpc-mapping-file>
<port-component>
<port-component-name>IHelloWorldPort</port-component-name>
<wsdl-port>HelloWorldPort</wsdl-port>
<service-endpoint-interface>helloworld.IHelloWorld</service-endpoint-interface>
<service-impl-bean>
<servlet-link>HelloWorld</servlet-link>
</service-impl-bean>
</port-component>
</webservice-description>
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web.xml
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<?xml version="1.0" encoding="UTF-8"?>
<web-app version="2.4" xmlns="http://java.sun.com/xml/ns/j2ee">
<servlet-name>HelloWorld</servlet-name>
<servlet-class>helloworld.impl.HelloWorld</servlet-class>
<servlet-mapping>
<servlet-name>HelloWorld</servlet-name>
<url-pattern>/*</url-pattern>
</servlet-mapping>
</web-app>
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jax-rpc-mapping.xml
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<?xml version="1.0" encoding="UTF-8"?>
<java-wsdl-mapping version="1.1" xsi:schemaLocation="http://java.sun.com/xml/ns/j2ee" xmlns="http://java.sun.com/xml/ns/j2ee" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
<package-mapping>
<package-type>helloworld</package-type>
http://localhost:8080/HelloWorld/
</package-mapping><service-interface-mapping>
<service-interface>helloworld.HelloWorld</service-interface>
<wsdl-service-name xmlns:serviceNS="http://localhost:8080/HelloWorld/">serviceNS:HelloWorld</wsdl-service-name>
<port-mapping>
<port-name>IHelloWorldPort</port-name>
<java-port-name>IHelloWorldPort</java-port-name>
</port-mapping>
</service-interface-mapping><service-endpoint-interface-mapping>
<service-endpoint-interface>helloworld.IHelloWorld</service-endpoint-interface>
<wsdl-port-type xmlns:portTypeNS="http://localhost:8080/HelloWorld/">portTypeNS:IHelloWorld</wsdl-port-type>
<wsdl-binding xmlns:bindingNS="http://localhost:8080/HelloWorld/">bindingNS:IHelloWorldBinding</wsdl-binding>
<service-endpoint-method-mapping>
<java-method-name>sayHello</java-method-name>
<wsdl-operation>sayHello</wsdl-operation>
<method-param-parts-mapping>
<param-position>0</param-position>
<param-type>java.lang.String</param-type>
<wsdl-message-mapping>
<wsdl-message xmlns:wsdlMsgNS="http://localhost:8080/HelloWorld/">wsdlMsgNS:IHelloWorld_sayHello</wsdl-message>
<wsdl-message-part-name>String_1</wsdl-message-part-name>
<parameter-mode>IN</parameter-mode>
</wsdl-message-mapping>
</method-param-parts-mapping>
<wsdl-return-value-mapping>
<method-return-value>java.lang.String</method-return-value>
<wsdl-message xmlns:wsdlMsgNS="http://localhost:8080/HelloWorld/">wsdlMsgNS:IHelloWorld_sayHelloResponse</wsdl-message>
<wsdl-message-part-name>result</wsdl-message-part-name>
</wsdl-return-value-mapping>
</service-endpoint-method-mapping>
</service-endpoint-interface-mapping></java-wsdl-mapping>
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HelloWorld-mapping.xml
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<?xml version='1.0' encoding='UTF-8'?><java-wsdl-mapping version='1.1' xmlns='http://java.sun.com/xml/ns/j2ee' xmlns:xsi='http://www.w3.org/2001/XMLSchema-instance' xsi:schemaLocation='http://java.sun.com/xml/ns/j2ee '>
<package-mapping>
<package-type>helloworld</package-type>
http://localhost:8080/HelloWorld/
</package-mapping>
<service-interface-mapping>
<service-interface>helloworld.HelloWorldService</service-interface>
<wsdl-service-name xmlns:serviceNS='http://localhost:8080/HelloWorld/'>serviceNS:HelloWorldService</wsdl-service-name>
<port-mapping>
<port-name>HelloWorldPort</port-name>
<java-port-name>HelloWorldPort</java-port-name>
</port-mapping>
</service-interface-mapping>
<service-endpoint-interface-mapping>
<service-endpoint-interface>helloworld.IHelloWorld</service-endpoint-interface>
<wsdl-port-type xmlns:portTypeNS='http://localhost:8080/HelloWorld/'>portTypeNS:IHelloWorld</wsdl-port-type>
<wsdl-binding xmlns:bindingNS='http://localhost:8080/HelloWorld/'>bindingNS:HelloWorld</wsdl-binding>
<service-endpoint-method-mapping>
<java-method-name>sayHello</java-method-name>
<wsdl-operation>sayHello</wsdl-operation>
<method-param-parts-mapping>
<param-position>0</param-position>
<param-type>java.lang.String</param-type>
<wsdl-message-mapping>
<wsdl-message xmlns:wsdlMsgNS='http://localhost:8080/HelloWorld/'>wsdlMsgNS:sayHelloRequest</wsdl-message>
<wsdl-message-part-name>sayHelloRequest</wsdl-message-part-name>
<parameter-mode>IN</parameter-mode>
</wsdl-message-mapping>
</method-param-parts-mapping>
<wsdl-return-value-mapping>
<method-return-value>java.lang.String</method-return-value>
<wsdl-message xmlns:wsdlMsgNS='http://localhost:8080/HelloWorld/'>wsdlMsgNS:sayHelloResponse</wsdl-message>
<wsdl-message-part-name>sayHelloResponse</wsdl-message-part-name>
</wsdl-return-value-mapping>
</service-endpoint-method-mapping>
</service-endpoint-interface-mapping>
</java-wsdl-mapping>
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HelloWorld.wsdl
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<?xml version="1.0" encoding="UTF-8"?>
<wsdl:definitions name="HelloWorld"
targetNamespace="http://localhost:8080/HelloWorld/"
xmlns:wsdl="http://schemas.xmlsoap.org/wsdl/"
xmlns:tns="http://localhost:8080/HelloWorld/"
xmlns:xsd="http://www.w3.org/2001/XMLSchema"
xmlns:soap="http://schemas.xmlsoap.org/wsdl/soap/">
<wsdl:types/>
<wsdl:message name="sayHelloRequest">
<wsdl:part name="sayHelloRequest" type="xsd:string"></wsdl:part>
</wsdl:message>
<wsdl:message name="sayHelloResponse">
<wsdl:part name="sayHelloResponse" type="xsd:string"></wsdl:part>
</wsdl:message>
<wsdl:portType name="IHelloWorld">
<wsdl:operation name="sayHello">
<wsdl:input message="tns:sayHelloRequest"></wsdl:input>
<wsdl:output message="tns:sayHelloResponse"></wsdl:output>
</wsdl:operation>
</wsdl:portType>
<wsdl:binding name="HelloWorld" type="tns:IHelloWorld">
<soap:binding style="rpc"
transport="http://schemas.xmlsoap.org/soap/http" />
<wsdl:operation name="sayHello">
<soap:operation
soapAction="http://localhost:8080/HelloWorld/sayHello" />
<wsdl:input>
<soap:body use="literal"
namespace="http://localhost:8080/HelloWorld/" />
</wsdl:input>
<wsdl:output>
<soap:body use="literal"
namespace="http://localhost:8080/HelloWorld/" />
</wsdl:output>
</wsdl:operation>
</wsdl:binding>
<wsdl:service name="HelloWorldService">
<wsdl:port name="HelloWorldPort" binding="tns:HelloWorld">
<soap:address location="http://localhost:8080/HelloWorld" />
</wsdl:port>
</wsdl:service>
</wsdl:definitions>
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My Java Class Files are as follows :-
/*
* JBoss, the OpenSource EJB server
* Distributable under LGPL license. See terms of license at gnu.org.
*/
//Auto Generated by jbossws - Please do not edit!!!
package helloworld;
import javax.xml.rpc.*;
public interface HelloWorldService extends javax.xml.rpc.Service
{
public helloworld.IHelloWorld getHelloWorldPort() throws ServiceException;
}
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/*
* JBossWS WS-Tools Generated Source
*
* Generation Date: Mon Jun 04 14:47:16 IST 2007
*
* This generated source code represents a derivative work of the input to
* the generator that produced it. Consult the input for the copyright and
* terms of use that apply to this source code.
*/
package helloworld;
public interface IHelloWorld extends java.rmi.Remote
{
public java.lang.String sayHello(java.lang.String sayHelloRequest) throws java.rmi.RemoteException;
}
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HelloWorld.java
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package helloworld.impl;
import helloworld.IHelloWorld;
public class HelloWorld implements IHelloWorld
{
public String sayHello(String sayHelloRequest)
{
return "Hello How are you, " + sayHelloRequest + "!";
}
}
