[EJB 3.0] - Accessing stateless EJB3 bean from a ejb-jar
by zhuhuapeng＠gmail.com
this problem had been nagging me for days,i had made a project using ejb3. and deployed it to jboss4.2.3GA. the following is part of my project:
1:persistence.xml
<persistence-unit name="cattle_persis"
| transaction-type="JTA">
| <provider>org.hibernate.ejb.HibernatePersistence</provider>
| <jta-data-source>java:/cattleDB</jta-data-source>
| <properties>
| <property name="hibernate.transaction.factory_class" value="org.hibernate.transaction.CMTTransactionFactory" />
| <property name="org.hibernate.transaction.manager_lookup_class" value="org.hibernate.transaction.JBossTransactionManagerLookup"/>
2:interface
| @Remote
| public interface ICustomerService {
| public void persist(CustomerEO eo);
| }
3:bean
| @Stateless
| public class CustomerService implements ICustomerService {
| @PersistenceContext(unitName="cattle_persis")
| private EntityManager entityManager;
| public void persist(CustomerEO eo) {
| entityManager.persist(eo);
| }
| }
|
4:entity
| @Entity
| @Table(name="CUSTOMER")
| public class CustomerEO {...
|
5:testClient
| ...
| Hashtable<String,String> props = new Hashtable<String,String>();
| props.put(Context.INITIAL_CONTEXT_FACTORY, "org.jnp.interfaces.NamingContextFactory");
| props.put(Context.URL_PKG_PREFIXES, "org.jboss.naming:org.jnp.interfaces");
| props.put(Context.PROVIDER_URL, "jnp://127.0.0.1:1099");
| context = new InitialContext(props);
| ...
| Context ctx = getInitialContext();
| Object obj = ctx.lookup("CustomerService/remote");
| ICustomerService service = (ICustomerService)PortableRemoteObject.narrow(obj,
| ICustomerService.class);
| ....
|
then run jboss, part of the loginfo
| [ConnectionFactoryBindingService] Bound ConnectionManager 'jboss.jca:service=DataSourceBinding,name=/cattleDB' to JNDI name 'java:/cattleDB'
| 17:01:19,664 INFO [JmxKernelAbstraction] creating wrapper delegate for: org.jboss.ejb3.entity.PersistenceUnitDeployment
| 17:01:19,667 INFO [JmxKernelAbstraction] installing MBean: persistence.units:jar=demoEJB-1.0.jar,unitName=cattle_persis with dependencies:
| 17:01:19,667 INFO [JmxKernelAbstraction] jboss.jca:name=cattleDB,service=DataSourceBinding
| 17:01:19,853 INFO [JmxKernelAbstraction] creating wrapper delegate for: org.jboss.ejb3.stateless.StatelessContainer
| 17:01:19,857 INFO [JmxKernelAbstraction] installing MBean: jboss.j2ee:jar=demoEJB-1.0.jar,name=CustomerService,service=EJB3 with dependencies:
| 17:01:19,857 INFO [JmxKernelAbstraction] persistence.units:jar=demoEJB-1.0.jar,unitName=cattle_persis
| 17:01:19,859 INFO [EJB3Deployer] Deployed: file:/E:/TheOrc/base/jboss-4.2.3.GA/server/default/deploy/demoEJB-1.0.jar
| 17:01:19,886 INFO [TomcatDeployer] deploy, ctxPath=/jmx-console, warUrl=.../deploy/jmx-console.war/
| 17:01:20,009 ERROR [URLDeploymentScanner] Incomplete Deployment listing:
|
| --- MBeans waiting for other MBeans ---
| ObjectName: persistence.units:jar=demoEJB-1.0.jar,unitName=cattle_persis
| State: NOTYETINSTALLED
| I Depend On:
| jboss.jca:name=cattleDB,service=DataSourceBinding
| Depends On Me:
| jboss.j2ee:jar=demoEJB-1.0.jar,name=CustomerService,service=EJB3
|
| ObjectName: jboss.j2ee:jar=demoEJB-1.0.jar,name=CustomerService,service=EJB3
| State: NOTYETINSTALLED
| I Depend On:
| persistence.units:jar=demoEJB-1.0.jar,unitName=cattle_persis
|
| --- MBEANS THAT ARE THE ROOT CAUSE OF THE PROBLEM ---
| ObjectName: jboss.jca:name=cattleDB,service=DataSourceBinding
| State: NOTYETINSTALLED
| Depends On Me:
| persistence.units:jar=demoEJB-1.0.jar,unitName=cattle_persis
|
in jmx-console page,get the following message:
| persistence.units
| jar=demoEJB-1.0.jar,unitName=cattle_persis
|
at last ,run testClient,and got the following exception:
| Exception in thread "main" javax.naming.NameNotFoundException: CustomerService not bound
| ...
|
can there anyone help me to resolve this problem,very thanks.
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16 years, 5 months