在J2SE的客户端使用JNDI查找部署在JBOSS上的EJB3.0

这个问题缠了我好久，写好了EJB却总是无法在J2SE的客户端进行调用。在JBOSS的JNDIView中也能看到我那部署好的EJB，可是每当运行下面的代码却总是报同样的异常。

InitialContextctx=newInitialContext();
HelloWorldfileservice=(HelloWorld)ctx.lookup(HelloWorld.class.getName());

javax.naming.CommunicationException[Rootexceptionisjava.lang.ClassNotFoundException:org.jboss.proxy.ejb.EJBMetaDataImpl(nosecuritymanager:RMIclassloaderdisabled)]
atorg.jnp.interfaces.NamingContext.lookup(NamingContext.java:713)
atorg.jnp.interfaces.NamingContext.lookup(NamingContext.java:572)
atjavax.naming.InitialContext.lookup(InitialContext.java:351)
attest.ServiceTest.main(ServiceTest.java:33)
Causedby:java.lang.ClassNotFoundException:org.jboss.proxy.ejb.EJBMetaDataImpl(nosecuritymanager:RMIclassloaderdisabled)
atsun.rmi.server.LoaderHandler.loadClass(LoaderHandler.java:371)
atsun.rmi.server.LoaderHandler.loadClass(LoaderHandler.java:165)
atjava.rmi.server.RMIClassLoader$2.loadClass(RMIClassLoader.java:620)
atjava.rmi.server.RMIClassLoader.loadClass(RMIClassLoader.java:247)
atsun.rmi.server.MarshalInputStream.resolveClass(MarshalInputStream.java:197)
atjava.io.ObjectInputStream.readNonProxyDesc(ObjectInputStream.java:1538)
atjava.io.ObjectInputStream.readClassDesc(ObjectInputStream.java:1460)
atjava.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1693)
atjava.io.ObjectInputStream.readObject0(ObjectInputStream.java:1299)
atjava.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:1912)
atjava.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1836)
atjava.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1713)
atjava.io.ObjectInputStream.readObject0(ObjectInputStream.java:1299)
atjava.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:1912)
atjava.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1836)
atjava.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1713)
atjava.io.ObjectInputStream.readObject0(ObjectInputStream.java:1299)
atjava.io.ObjectInputStream.readObject(ObjectInputStream.java:339)
atjava.rmi.MarshalledObject.get(MarshalledObject.java:135)
atorg.jnp.interfaces.MarshalledValuePair.get(MarshalledValuePair.java:57)
atorg.jnp.interfaces.NamingContext.lookup(NamingContext.java:637)
...3more

发现org.jboss.proxy.ejb.EJBMetaDataImpl这个class无法找到，估计很可能是有一些必要的包没有导进去。google了一下，有人提示说问题很有可能是没有导入client结尾的包。试着导入了下面这些包（都在JBOSS根目录下）

/client/jboss-client.jar
./client/jboss-common-client.jar
./client/jboss-transaction-client.jar
./client/jbossmq-client.jar
./client/jbosssx-client.jar
./client/jmx-invoker-adaptor-client.jar
./client/jnp-client.jar

最后发现是jboss-client.jar 里面包含的org.jboss.proxy.ejb.EJBMetaDataImpl这个类，导入运行成功。

yeah，留下脚印