无法从Java SE客户端访问EJB – 查找失败错误

我正在使用Netbeans并正在尝试使用EJB。

我有两个项目（2个独立的申请）

1-一个名为EnterpriseApp的Java ME项目

2-标准Java SE项目，名为Test

现在这就是我所做的 – 在EnterpriseApp中，我使用本地和远程接口生成了一个名为TestEJB的无状态EJB。 对于远程项目选择，我选择了测试应用程序。 简而言之，bean代码看起来像这样

@Stateless public class TestEjb implements TestEjbRemote, TestEjbLocal { @Override public String Try() { return "Hello World"; } } 

在Java SE客户端项目中，这里是我尝试访问bean的主要类：

 public class Main { public static void main(String[] args) { try { Properties props = new Properties(); props.load(new FileInputStream("jndi.properties")); InitialContext ctx = new InitialContext(props); TestEjbRemote testEJB = (TestEjbRemote) ctx.lookup("stateless.TestEjbRemote"); System.out.println(testEJB.Try()); } catch (NamingException nex) { nex.printStackTrace(); } catch (FileNotFoundException fnfex) { fnfex.printStackTrace(); } catch (IOException ioex) { ioex.printStackTrace(); } } } 

这是JNDI.properties文件的内容

 java.naming.factory.initial = com.sun.enterprise.naming.SerialInitContextFactory java.naming.factory.url.pkgs = com.sun.enterprise.naming java.naming.factory.state = com.sun.corba.ee.impl.presentation.rmi.JNDIStateFactoryImpl #optional. Defaults to localhost. Only needed if web server is running #on a different host than the appserver org.omg.CORBA.ORBInitialHost = localhost #optional. Defaults to 3700. Only needed if target orb port is not 3700. org.omg.CORBA.ORBInitialPort = 3700 

我得到这个错误

  TestEjbRemote testEJB = (TestEjbRemote) ctx.lookup("stateless.TestEjbRemote"); javax.naming.NamingException: Lookup failed for 'stateless.TestEjbRemote' in SerialContext[myEnv={org.omg.CORBA.ORBInitialPort=3700, java.naming.factory.initial=com.sun.enterprise.naming.SerialInitContextFactory, org.omg.CORBA.ORBInitialHost=localhost, java.naming.factory.state=com.sun.corba.ee.impl.presentation.rmi.JNDIStateFactoryImpl, java.naming.factory.url.pkgs=com.sun.enterprise.naming} [Root exception is javax.naming.NameNotFoundException: stateless.TestEjbRemote not found] at com.sun.enterprise.naming.impl.SerialContext.lookup(SerialContext.java:518) at com.sun.enterprise.naming.impl.SerialContext.lookup(SerialContext.java:455) at javax.naming.InitialContext.lookup(InitialContext.java:392) at Main.main(Main.java:19) Caused by: javax.naming.NameNotFoundException: stateless.TestEjbRemote not found at com.sun.enterprise.naming.impl.TransientContext.doLookup(TransientContext.java:248) at com.sun.enterprise.naming.impl.TransientContext.lookup(TransientContext.java:215) at com.sun.enterprise.naming.impl.SerialContextProviderImpl.lookup(SerialContextProviderImpl.java:77) at com.sun.enterprise.naming.impl.RemoteSerialContextProviderImpl.lookup(RemoteSerialContextProviderImpl.java:109) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) at java.lang.reflect.Method.invoke(Method.java:597) at com.sun.corba.ee.impl.presentation.rmi.ReflectiveTie.dispatchToMethod(ReflectiveTie.java:144) at com.sun.corba.ee.impl.presentation.rmi.ReflectiveTie._invoke(ReflectiveTie.java:174) at com.sun.corba.ee.impl.protocol.CorbaServerRequestDispatcherImpl.dispatchToServant(CorbaServerRequestDispatcherImpl.java:528) at com.sun.corba.ee.impl.protocol.CorbaServerRequestDispatcherImpl.dispatch(CorbaServerRequestDispatcherImpl.java:199) at com.sun.corba.ee.impl.protocol.CorbaMessageMediatorImpl.handleRequestRequest(CorbaMessageMediatorImpl.java:1624) at com.sun.corba.ee.impl.protocol.CorbaMessageMediatorImpl.handleRequest(CorbaMessageMediatorImpl.java:1486) at com.sun.corba.ee.impl.protocol.CorbaMessageMediatorImpl.handleInput(CorbaMessageMediatorImpl.java:990) at com.sun.corba.ee.impl.protocol.giopmsgheaders.RequestMessage_1_2.callback(RequestMessage_1_2.java:214) at com.sun.corba.ee.impl.protocol.CorbaMessageMediatorImpl.handleRequest(CorbaMessageMediatorImpl.java:742) at com.sun.corba.ee.impl.protocol.CorbaMessageMediatorImpl.dispatch(CorbaMessageMediatorImpl.java:539) at com.sun.corba.ee.impl.protocol.CorbaMessageMediatorImpl.doWork(CorbaMessageMediatorImpl.java:2324) at com.sun.corba.ee.impl.orbutil.threadpool.ThreadPoolImpl$WorkerThread.performWork(ThreadPoolImpl.java:497) at com.sun.corba.ee.impl.orbutil.threadpool.ThreadPoolImpl$WorkerThread.run(ThreadPoolImpl.java:540) 

有关如何解决此问题的任何建议？

Answer 1

从概念上讲，你做的一切都是对 所以这应该是一些’错名’相关的问题。

好消息，你可以检查:)

EJB一旦被应用程序服务器识别就被部署了。 这意味着存根由AS创建并放入JNDI树中。 这意味着一旦服务器启动，您就可以转到JNDI树查看器（通常是它与aplpication服务器一起提供），并查看在哪里部署了什么。 我相信，鉴于你已正确安装你的jar子，这应该有效。

希望这可以帮助