Question

我无法让依赖注入为我的远程服务工作，我无法弄清楚原因。我想要一个RemoteService实例，所以我写了。

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

Bean本身是使用mappedName =“RemoteService：

定义的

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

当我尝试运行此代码时，我收到了一个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，但我不需要任何配置文件，对吧？远程服务在与尝试引用它的服务相同的glassfish实例上运行。检查glassfish管理员中的JNDI浏览器验证EJB是否已使用正确的jndi名称进行部署，如果我删除@EJB注释并在构造函数中手动执行查找，它也可以工作：

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

我无法相信我没有尝试过，但似乎我没有尝试过，我显然没有尝试通过mappedName引用EJB。因此，更改对此的引用可使其有效：

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

Glassfish上的EJB依赖注入远程服务失败

1 个答案: