java - 远程服务的 EJB 依赖注入(inject)在 Glassfish 上失败

Question

我无法让依赖注入(inject)为我的远程服务工作，我也不知道为什么。我想要一个 RemoteService 的实例，所以我写了。

@EJB(name="RemoteService")
private RemoteService service;

Bean 本身是用 mappedName="RemoteService:

定义的

@Stateless(mappedName = "RemoteService")
public class RemoteServiceBean implements RemoteService

当我尝试运行这段代码时，我得到了一个 InjectionException:

EJB5070: Exception creating stateless session bean : [{0}]
com.sun.enterprise.InjectionException: Exception attempting to inject Unresolved Ejb-Ref RemoteService@jndi: service.remote.RemoteService@null@service.remote.RemoteService@Session@null into class service.OrderServiceBean
        at com.sun.enterprise.util.InjectionManagerImpl._inject(InjectionManagerImpl.java:387)
        at com.sun.enterprise.util.InjectionManagerImpl.inject(InjectionManagerImpl.java:206)
        at com.sun.enterprise.util.InjectionManagerImpl.injectInstance(InjectionManagerImpl.java:127)
        at com.sun.ejb.containers.StatelessSessionContainer.createStatelessEJB(StatelessSessionContainer.java:538)
        at com.sun.ejb.containers.StatelessSessionContainer.access$100(StatelessSessionContainer.java:111)
        at com.sun.ejb.containers.StatelessSessionContainer$SessionContextFactory.create(StatelessSessionContainer.java:783)
        at com.sun.ejb.containers.util.pool.NonBlockingPool.getObject(NonBlockingPool.java:199)
        at com.sun.ejb.containers.StatelessSessionContainer._getContext(StatelessSessionContainer.java:489)
        at com.sun.ejb.containers.BaseContainer.getContext(BaseContainer.java:1709)
        at com.sun.ejb.containers.BaseContainer.preInvoke(BaseContainer.java:1238)
        at com.sun.ejb.containers.EJBLocalObjectInvocationHandler.invoke(EJBLocalObjectInvocationHandler.java:195)
        at com.sun.ejb.containers.EJBLocalObjectInvocationHandlerDelegate.invoke(EJBLocalObjectInvocationHandlerDelegate.java:83)
        at $Proxy766.size(Unknown Source)
        at 

我没有 ejb 配置文件，但我应该不需要，对吧？远程服务与尝试引用它的服务在同一个 glassfish 实例上运行。检查 glassfish admin 中的 JNDI 浏览器，验证是否已使用正确的 jndi 名称部署了 EJB，如果我删除了 @EJB 注释并在构造函数中手动执行查找，它也可以正常工作:

public OrderServiceBean()
  {
    try
    {
      final Properties properties = new Properties();
      properties.setProperty("java.naming.factory.initial", "com.sun.enterprise.naming.SerialInitContextFactory");
      properties.setProperty("java.naming.factory.url.pkgs", "com.sun.enterprise.naming");
      properties.setProperty("java.naming.factory.state", "com.sun.corba.ee.impl.presentation.rmi.JNDIStateFactoryImpl");
      properties.setProperty("org.omg.CORBA.ORBInitialHost", "localhost");
      properties.setProperty("org.omg.CORBA.ORBInitialPort", "3700");

      final InitialContext initialContext = new InitialContext(properties);
      this.service = (RemoteService) initialContext.lookup("RemoteService");
    }

想法？

Answer 1

我不敢相信我没有尝试过，但看起来我没有，我显然没有尝试通过 mappedName 引用 EJB。因此，更改对此的引用使其起作用:

@EJB(mappedName="RemoteService")
private RemoteService service;