4 Replies Latest reply on Mar 4, 2005 4:04 PM by mpitanga

    Deploy a EJB as Web Service

    mpitanga
    mpitanga Mar 4, 2005 8:53 AM

      Hi,

      All examples that i´ve found use another class ( extends java.rmi.Remote) and not directly of a EJB Remote.

      Is possible deploy a EJB directly as Web Services?

      Thanks in advanced

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        • 1. Re: Deploy a EJB as Web Service
          thomas.diesler
          thomas.diesler Mar 4, 2005 1:27 PM (in response to mpitanga)

          http://www.jboss.org/wiki/Wiki.jsp?page=WSServerEJB

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          • 2. Re: Deploy a EJB as Web Service
            mpitanga
            mpitanga Mar 4, 2005 2:22 PM (in response to mpitanga)

            Hi Thomas,

            My problem.

            Example:

            My EJB...
            Remote interface...

            import ....
public interface APIMensagem extends EJBObject
{
...
public void enviarMensagem( String id, logType objmsg ) throws JMSException, NamingException, RemoteException;
}


            Home interface 

            import ....
public interface APIMensagemHome extends EJBHome
{
 APIMensagem create () throws RemoteException, CreateException;
}


            Bean 
            import ....
public class APIMensagemBean implements SessionBean
{
.....
 public void enviarMensagem( String id, logType objmsg ) {
 try {
 msgObj.enviarMensagem(id, objmsg);
 } catch (Exception e){
 System.out.println("Erro : "+e);
 }
 }
....
}


            when i use the wscompile for generate the WSDL and RPC-Mapping it fail.

            APIMensagemServiceConfig.xml 
            <?xml version="1.0" encoding="UTF-8"?>
<configuration xmlns="http://java.sun.com/xml/ns/jax-rpc/ri/config">
 <service name="APIMensagemService"
 targetNamespace="http://middlog.com.br/wsdl"
 typeNamespace="http://middlog.com.br/types"
 packageName="middlog.API">
 <interface name="middlog.API.APIMensagem"/>
 </service>
</configuration>


            wscompile command and message error: 

            C:\implementacao>wscompile -cp C:/implementacao/middlog/build -gen:server -f:rpc
literal -d C:/implementacao/middlog/resources -mapping C:/implementacao/middlog/resources/APIMensagem_mapping.xml C:/implementacao/middlog/APIMensagemServiceConfig.xml

java.lang.reflect.InvocationTargetException
 at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
 at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.
java:39)
 at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAcces
sorImpl.java:25)
 at java.lang.reflect.Method.invoke(Method.java:585)
 at org.apache.commons.launcher.ChildMain.run(ChildMain.java:269)
Caused by: java.lang.NoClassDefFoundError: javax/ejb/EJBObject
 at java.lang.ClassLoader.defineClass1(Native Method)
 at java.lang.ClassLoader.defineClass(ClassLoader.java:620)
 at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:12
4)
 at java.net.URLClassLoader.defineClass(URLClassLoader.java:260)
 at java.net.URLClassLoader.access$100(URLClassLoader.java:56)
 at java.net.URLClassLoader$1.run(URLClassLoader.java:195)
 at java.security.AccessController.doPrivileged(Native Method)
 at java.net.URLClassLoader.findClass(URLClassLoader.java:188)
 at java.lang.ClassLoader.loadClass(ClassLoader.java:306)
 at java.lang.ClassLoader.loadClass(ClassLoader.java:251)
 at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:319)
 at java.lang.Class.forName0(Native Method)
 at java.lang.Class.forName(Class.java:242)
 at com.sun.xml.rpc.processor.modeler.rmi.RmiUtils.getLoadableClassName(R
miUtils.java:78)
 at com.sun.xml.rpc.processor.modeler.rmi.RmiUtils.getRealName(RmiUtils.j
ava:54)
 at com.sun.xml.rpc.processor.modeler.rmi.RmiModeler.modelPort(RmiModeler
.java:676)
 at com.sun.xml.rpc.processor.modeler.rmi.RmiModeler.buildLiteralModel(Rm
iModeler.java:603)
 at com.sun.xml.rpc.processor.modeler.rmi.RmiModeler.buildModel(RmiModele
r.java:457)
 at com.sun.xml.rpc.processor.config.ModelInfo.buildModel(ModelInfo.java:
88)
 at com.sun.xml.rpc.processor.Processor.runModeler(Processor.java:63)
 at com.sun.xml.rpc.tools.wscompile.CompileTool.run(CompileTool.java:714)

 at com.sun.xml.rpc.util.ToolBase.run(ToolBase.java:43)
 at com.sun.xml.rpc.tools.wscompile.Main.main(Main.java:22)
 ... 5 more
C:\implementacao>


            Following the Wiki:

            package ... 

            import ...

public interface APIMensagemEndpoint extends Remote
{
...
public void enviarMensagem( String id, logType objmsg ) throws RemoteException;
}


            APIMensagemServiceConfig.xml 
            <?xml version="1.0" encoding="UTF-8"?>
<configuration xmlns="http://java.sun.com/xml/ns/jax-rpc/ri/config">
 <service name="APIMensagemService"
 targetNamespace="http://middlog.com.br/wsdl"
 typeNamespace="http://middlog.com.br/types"
 packageName="middlog.API">
 <interface name="middlog.API.APIMensagemEndpoint"/>
 </service>
</configuration>


            wscompile.. 
            C:\implementacao>wscompile -cp C:/implementacao/middlog/build -gen:server -f:rpc
literal -d C:/implementacao/middlog/resources -mapping C:/implementacao/middlog
/resources/APIMensagem_mapping.xml C:/implementacao/middlog/APIMensagemServiceC
onfig.xml
C:\implementacao>


            After create this new class extends from java.rmi.Remote the wscompile generate the wsdl and rpcmapping correctly.

            Question 1) if i´ve implemented a remote interface for my EJB session bean why i have that to create another class for generate my web services?

            Question 2) After generate this wsdl, the wscompile generate others class. These class will must package joint with my EJB?


            O volume na unidade C ? Disco local
            O n£mero de s?rie do volume ? 2C16-CF4F

            Pasta de C:\implementacao\middlog\resources\middlog\API

            04/03/2005 16:08 .
            04/03/2005 16:08 ..
            04/03/2005 16:02 274 APIMensagemEndpoint_abrefila_RequestStruct.class
            04/03/2005 16:02 1.533 APIMensagemEndpoint_abrefila_RequestStruct_LiteralSerializer.class
            04/03/2005 16:02 276 APIMensagemEndpoint_abrefila_ResponseStruct.class
            04/03/2005 16:02 1.536 APIMensagemEndpoint_abrefila_ResponseStruct_LiteralSerializer.class
            04/03/2005 16:02 854 APIMensagemEndpoint_enviarMensagem2_RequestStruct.class
            04/03/2005 16:02 4.070 APIMensagemEndpoint_enviarMensagem2_RequestStruct_LiteralSerializer.class
            04/03/2005 16:02 757 APIMensagemEndpoint_enviarMensagem_RequestStruct.class
            04/03/2005 16:02 3.792 APIMensagemEndpoint_enviarMensagem_RequestStruct_LiteralSerializer.class
            04/03/2005 16:02 288 APIMensagemEndpoint_enviarMensagem_ResponseStruct.class
            04/03/2005 16:02 290 APIMensagemEndpoint_enviarMensagem_ResponseStruct1.class
            04/03/2005 16:02 1.557 APIMensagemEndpoint_enviarMensagem_ResponseStruct1_LiteralSerializer.class
            04/03/2005 16:02 1.554 APIMensagemEndpoint_enviarMensagem_ResponseStruct_LiteralSerializer.class
            04/03/2005 16:02 278 APIMensagemEndpoint_fecharfila_RequestStruct.class
            04/03/2005 16:02 1.539 APIMensagemEndpoint_fecharfila_RequestStruct_LiteralSerializer.class
            04/03/2005 16:02 280 APIMensagemEndpoint_fecharfila_ResponseStruct.class
            04/03/2005 16:02 1.542 APIMensagemEndpoint_fecharfila_ResponseStruct_LiteralSerializer.class
            04/03/2005 16:02 11.059 APIMensagemEndpoint_Tie.class
            04/03/2005 16:02 3.576 APIMensagemService_SerializerRegistry.class
            04/03/2005 16:08 0 list.txt
            19 arquivo(s) 35.055 bytes
            2 pasta(s) 63.495.778.304 bytes dispon¡veis

            O volume na unidade C ? Disco local
            O n£mero de s?rie do volume ? 2C16-CF4F

            Pasta de C:\implementacao\middlog\resources\middlog\modelo

            04/03/2005 16:10 .
            04/03/2005 16:10 ..
            04/03/2005 16:10 0 list.txt
            04/03/2005 16:02 2.642 logType_LiteralSerializer.class
            2 arquivo(s) 2.642 bytes
            2 pasta(s) 63.495.774.208 bytes dispon¡veis



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            • 3. Re: Deploy a EJB as Web Service
              thomas.diesler
              thomas.diesler Mar 4, 2005 3:50 PM (in response to mpitanga)

              1) The methods exposed through a EJB remote interface are not necessarily the same as for the WS endpoint

              2) No, they are jwsdp specific

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              • 4. Re: Deploy a EJB as Web Service
                mpitanga
                mpitanga Mar 4, 2005 4:04 PM (in response to mpitanga)

                Hi Thomas,

                Thank's for help.

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