WebLogic中的本地会话Bean JNDI查找 - NameNotFoundException

时间：2015-10-21 12:02:01

标签： java ejb weblogic jndi

我无法在WebLogic 10.3.6中的EJB模块中查找本地会话bean。

在以下示例中，我可以使用注入，但在实际产品中，我们需要从非托管对象访问本地会话bean，因此这是为了演示问题。我也知道它可以使用远程接口，但为什么我应该能够在本地进行。

@Local
public interface MyBeanLocal {

    public void foo();

}

@Stateless(name = "MyBean")
public class MyBean implements MyBeanLocal {

    @Override
    public void foo() {
        System.out.println("Foo");      
    }

}

此处客户端尝试查找本地会话bean。这个相同的代码似乎适用于其他应用程序服务器，但不适用于WebLogic。

@Stateless
public class CustomerInbound implements CustomerInboundLocal {

    @Override
    public void someOperation() throws Exception {

        try {

            // Exception is thrown here when looking up the object
            MyBeanLocal testLocal = (MyBeanLocal) 
                    new InitialContext().lookup("java:comp/env/MyBean");

            testLocal.foo();

        } catch (Exception e) {
            e.printStackTrace();
            throw e;
        }
    }
}

例外：

javax.naming.NameNotFoundException: While trying to look up comp/env/MyBean in /app/ejb/test-inject#CustomerInbound.; remaining name 'comp/env/MyBean'
    at weblogic.jndi.internal.BasicNamingNode.newNameNotFoundException(BasicNamingNode.java:1139)
    at weblogic.jndi.internal.ApplicationNamingNode.lookup(ApplicationNamingNode.java:144)
    at weblogic.jndi.internal.WLEventContextImpl.lookup(WLEventContextImpl.java:254)
    at weblogic.jndi.internal.WLContextImpl.lookup(WLContextImpl.java:412)
    at weblogic.jndi.factories.java.ReadOnlyContextWrapper.lookup(ReadOnlyContextWrapper.java:45)
    at weblogic.jndi.internal.AbstractURLContext.lookup(AbstractURLContext.java:130)
    at javax.naming.InitialContext.lookup(InitialContext.java:392)
    at beans.CustomerInbound.someOperation(CustomerInbound.java:16)
    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.bea.core.repackaged.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:310)
    at com.bea.core.repackaged.springframework.aop.framework.ReflectiveMethodInvocation.invokeJoinpoint(ReflectiveMethodInvocation.java:182)
    at com.bea.core.repackaged.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:149)
    at com.bea.core.repackaged.springframework.aop.support.DelegatingIntroductionInterceptor.doProceed(DelegatingIntroductionInterceptor.java:131)
    at com.bea.core.repackaged.springframework.aop.support.DelegatingIntroductionInterceptor.invoke(DelegatingIntroductionInterceptor.java:119)
    at com.bea.core.repackaged.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:171)
    at com.oracle.pitchfork.spi.MethodInvocationVisitorImpl.visit(MethodInvocationVisitorImpl.java:34)
    at weblogic.ejb.container.injection.EnvironmentInterceptorCallbackImpl.callback(EnvironmentInterceptorCallbackImpl.java:54)
    at com.oracle.pitchfork.spi.EnvironmentInterceptor.invoke(EnvironmentInterceptor.java:42)
    at com.bea.core.repackaged.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:171)
    at com.bea.core.repackaged.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke(ExposeInvocationInterceptor.java:89)
    at com.bea.core.repackaged.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:171)
    at com.bea.core.repackaged.springframework.aop.support.DelegatingIntroductionInterceptor.doProceed(DelegatingIntroductionInterceptor.java:131)
    at com.bea.core.repackaged.springframework.aop.support.DelegatingIntroductionInterceptor.invoke(DelegatingIntroductionInterceptor.java:119)
    at com.bea.core.repackaged.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:171)
    at com.bea.core.repackaged.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:204)
    at com.sun.proxy.$Proxy134.someOperation(Unknown Source)
    at beans.CustomerInbound_xaxie8_CustomerInboundLocalImpl.__WL_invoke(Unknown Source)
    at weblogic.ejb.container.internal.SessionLocalMethodInvoker.invoke(SessionLocalMethodInvoker.java:39)
    at beans.CustomerInbound_xaxie8_CustomerInboundLocalImpl.someOperation(Unknown Source)
    at beans.CustomerWSFacade.customerIn(CustomerWSFacade.java:16)
    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.bea.core.repackaged.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:310)
    at com.bea.core.repackaged.springframework.aop.framework.ReflectiveMethodInvocation.invokeJoinpoint(ReflectiveMethodInvocation.java:182)
    at com.bea.core.repackaged.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:149)
    at com.bea.core.repackaged.springframework.aop.support.DelegatingIntroductionInterceptor.doProceed(DelegatingIntroductionInterceptor.java:131)
    at com.bea.core.repackaged.springframework.aop.support.DelegatingIntroductionInterceptor.invoke(DelegatingIntroductionInterceptor.java:119)
    at com.bea.core.repackaged.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:171)
    at com.oracle.pitchfork.spi.MethodInvocationVisitorImpl.visit(MethodInvocationVisitorImpl.java:34)
    at weblogic.ejb.container.injection.EnvironmentInterceptorCallbackImpl.callback(EnvironmentInterceptorCallbackImpl.java:54)
    at com.oracle.pitchfork.spi.EnvironmentInterceptor.invoke(EnvironmentInterceptor.java:42)
    at com.bea.core.repackaged.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:171)
    at com.bea.core.repackaged.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke(ExposeInvocationInterceptor.java:89)
    at com.bea.core.repackaged.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:171)
    at com.bea.core.repackaged.springframework.aop.support.DelegatingIntroductionInterceptor.doProceed(DelegatingIntroductionInterceptor.java:131)
    at com.bea.core.repackaged.springframework.aop.support.DelegatingIntroductionInterceptor.invoke(DelegatingIntroductionInterceptor.java:119)
    at com.bea.core.repackaged.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:171)
    at com.bea.core.repackaged.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:204)
    at com.sun.proxy.$Proxy133.customerIn(Unknown Source)
    at beans.CustomerWSFacade_jg1q6w_WSOImpl.__WL_invoke(Unknown Source)
    at weblogic.ejb.container.internal.WSOMethodInvoker.invoke(WSOMethodInvoker.java:22)
    at beans.CustomerWSFacade_jg1q6w_WSOImpl.__WL_customerIn_WS(Unknown Source)
    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 weblogic.wsee.server.ejb.WsEjb.invoke(WsEjb.java:54)
    at weblogic.wsee.jaxws.WLSEjbInstanceResolver$WLSEjbInvoker.invoke(WLSEjbInstanceResolver.java:192)
    at weblogic.wsee.jaxws.WLSInstanceResolver$WLSInvoker.invoke(WLSInstanceResolver.java:74)
    at com.sun.xml.ws.server.InvokerTube$2.invoke(InvokerTube.java:151)
    at com.sun.xml.ws.server.sei.EndpointMethodHandlerImpl.invoke(EndpointMethodHandlerImpl.java:268)
    at com.sun.xml.ws.server.sei.SEIInvokerTube.processRequest(SEIInvokerTube.java:100)
    at com.sun.xml.ws.api.pipe.Fiber.__doRun(Fiber.java:866)
    at com.sun.xml.ws.api.pipe.Fiber._doRun(Fiber.java:815)
    at com.sun.xml.ws.api.pipe.Fiber.doRun(Fiber.java:778)
    at com.sun.xml.ws.api.pipe.Fiber.runSync(Fiber.java:680)
    at com.sun.xml.ws.server.WSEndpointImpl$2.process(WSEndpointImpl.java:403)
    at com.sun.xml.ws.transport.http.HttpAdapter$HttpToolkit.handle(HttpAdapter.java:539)
    at com.sun.xml.ws.transport.http.HttpAdapter.handle(HttpAdapter.java:253)
    at com.sun.xml.ws.transport.http.servlet.ServletAdapter.handle(ServletAdapter.java:140)
    at weblogic.wsee.jaxws.WLSServletAdapter.handle(WLSServletAdapter.java:171)
    at weblogic.wsee.jaxws.HttpServletAdapter$AuthorizedInvoke.run(HttpServletAdapter.java:708)
    at weblogic.security.acl.internal.AuthenticatedSubject.doAs(AuthenticatedSubject.java:363)
    at weblogic.security.service.SecurityManager.runAs(SecurityManager.java:146)
    at weblogic.wsee.util.ServerSecurityHelper.authenticatedInvoke(ServerSecurityHelper.java:103)
    at weblogic.wsee.jaxws.HttpServletAdapter$3.run(HttpServletAdapter.java:311)
    at weblogic.wsee.jaxws.HttpServletAdapter.post(HttpServletAdapter.java:336)
    at weblogic.wsee.jaxws.JAXWSServlet.doRequest(JAXWSServlet.java:99)
    at weblogic.servlet.http.AbstractAsyncServlet.service(AbstractAsyncServlet.java:99)
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:820)
    at weblogic.servlet.internal.StubSecurityHelper$ServletServiceAction.run(StubSecurityHelper.java:227)
    at weblogic.servlet.internal.StubSecurityHelper.invokeServlet(StubSecurityHelper.java:125)
    at weblogic.servlet.internal.ServletStubImpl.execute(ServletStubImpl.java:301)
    at weblogic.servlet.internal.ServletStubImpl.execute(ServletStubImpl.java:184)
    at weblogic.servlet.internal.WebAppServletContext$ServletInvocationAction.wrapRun(WebAppServletContext.java:3732)
    at weblogic.servlet.internal.WebAppServletContext$ServletInvocationAction.run(WebAppServletContext.java:3696)
    at weblogic.security.acl.internal.AuthenticatedSubject.doAs(AuthenticatedSubject.java:321)
    at weblogic.security.service.SecurityManager.runAs(SecurityManager.java:120)
    at weblogic.servlet.internal.WebAppServletContext.securedExecute(WebAppServletContext.java:2273)
    at weblogic.servlet.internal.WebAppServletContext.execute(WebAppServletContext.java:2179)
    at weblogic.servlet.internal.ServletRequestImpl.run(ServletRequestImpl.java:1490)
    at weblogic.work.ExecuteThread.execute(ExecuteThread.java:256)
    at weblogic.work.ExecuteThread.run(ExecuteThread.java:221)

1 个答案:

答案 0 :(得分：0)

您必须声明对EJB的引用才能从java:comp查找它。您可以使用@EJB注释（有或没有注入，请参阅What does the @EJB annotation do?），也可以使用<ejb-ref>在web.xml中声明引用。

否则，如果您使用的是支持EE 6的较新版WebLogic，则可以使用可移植的java:global，java:app或java:module命名空间来查找EJB直接，但由于WebLogic 10.3.6仅支持EE 5，因此您需要使用配置的EJB绑定名称。

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