相关疑难解决方法(0)

我正在尝试通过注释将无状态EJB注入我的JAX-RS Web服务.不幸的是,EJB是公正的null,NullPointerException当我尝试使用它时,我得到了它.

@Path("book")
public class BookResource {

    @EJB
    private BookEJB bookEJB;

    public BookResource() {
    }

    @GET
    @Produces("application/xml")
    @Path("/{bookId}")
    public Book getBookById(@PathParam("bookId") Integer id)
    {
        return bookEJB.findById(id);
    }
}

我究竟做错了什么？

以下是有关我的机器的一些信息:

• Glassfish 3.1
• Netbeans 6.9 RC 2
• Java EE 6

你们能展示一些有用的例子吗？

beans.xml在我们EJB和jar文件中开始使用文件后,我有一个非常奇怪的异常.
我们使用JBoss7.1.1发布.
我们的应用程序打包为ear文件.
它之前已部署并正常运行.
有一些Module1 EJB组件.现在我们@Inject annotation在Module1中使用一些bean,因此添加了META-INF/beans.xml.
另一个EJB组件Module2使用Module1中的EJB,如:

@EJB

private IOmistajaFinderLocal omistajaFinder;

但现在应用程序无法部署在JBoss上.有以下例外:

java.lang.UnsupportedOperationException: JBAS011859: Naming context is read-only
      at org.jboss.as.naming.WritableServiceBasedNamingStore.requireOwner(WritableServiceBasedNamingStore.java:126)
      at org.jboss.as.naming.WritableServiceBasedNamingStore.createSubcontext(WritableServiceBasedNamingStore.java:116)
      at org.jboss.as.naming.NamingContext.createSubcontext(NamingContext.java:338)
      at org.jboss.as.naming.InitialContext.createSubcontext(InitialContext.java:229)
      at org.jboss.as.naming.NamingContext.createSubcontext(NamingContext.java:346)
      at javax.naming.InitialContext.createSubcontext(Unknown Source)
      at com.sun.jersey.server.impl.cdi.CDIExtension$1.stepInto(CDIExtension.java:280)
      at com.sun.jersey.server.impl.cdi.CDIExtension.diveIntoJNDIContext(CDIExtension.java:267)
      at com.sun.jersey.server.impl.cdi.CDIExtension.createJerseyConfigJNDIContext(CDIExtension.java:273)
      at com.sun.jersey.server.impl.cdi.CDIExtension.initialize(CDIExtension.java:192)
      at com.sun.jersey.server.impl.cdi.CDIExtension.beforeBeanDiscovery(CDIExtension.java:297)
      at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
      at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
      at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
      at java.lang.reflect.Method.invoke(Unknown Source)
      at org.jboss.weld.util.reflection.SecureReflections$13.work(SecureReflections.java:264)
      at org.jboss.weld.util.reflection.SecureReflectionAccess.run(SecureReflectionAccess.java:52)
      at org.jboss.weld.util.reflection.SecureReflectionAccess.runAsInvocation(SecureReflectionAccess.java:137)
      at org.jboss.weld.util.reflection.SecureReflections.invoke(SecureReflections.java:260)
      at org.jboss.weld.introspector.jlr.WeldMethodImpl.invokeOnInstance(WeldMethodImpl.java:170)
      at org.jboss.weld.introspector.ForwardingWeldMethod.invokeOnInstance(ForwardingWeldMethod.java:51)
      at org.jboss.weld.injection.MethodInjectionPoint.invokeOnInstanceWithSpecialValue(MethodInjectionPoint.java:154)
      at org.jboss.weld.event.ObserverMethodImpl.sendEvent(ObserverMethodImpl.java:241)
      at org.jboss.weld.event.ObserverMethodImpl.sendEvent(ObserverMethodImpl.java:229)
      at …