java查找通过REST失败

1 年，1 月 Questions & Answers 339

我将JAX-RS与EJB一起使用。我正在尝试注入EntityManager，但在NullPointerException时失败

坚持。xml:

<?xml version="1.0" encoding="UTF-8"?>
<persistence version="2.1" xmlns="http://xmlns.jcp.org/xml/ns/persistence" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/persistence http://xmlns.jcp.org/xml/ns/persistence/persistence_2_1.xsd">
    <persistence-unit name="dummy-pu" transaction-type="JTA">
        <provider>org.eclipse.persistence.jpa.PersistenceProvider</provider>
        <jta-data-source>jdbc/dummy</jta-data-source>
        <exclude-unlisted-classes>false</exclude-unlisted-classes>
        <properties>
          <property name="javax.persistence.jdbc.url" value="jdbc:derby://localhost:1527/dummy"/>
          <property name="javax.persistence.jdbc.password" value="APP"/>
          <property name="javax.persistence.jdbc.driver" value="org.apache.derby.jdbc.ClientDriver"/>
          <property name="javax.persistence.jdbc.user" value="APP"/>
          <property name="javax.persistence.schema-generation.database.action" value="drop-and-create"/>
        </properties>
    </persistence-unit>
</persistence>

下面是Bean：

@Stateless(name = "greetingBean", mappedName = "greeting")
@Path("/greeting-service")
@Remote(GreetingService.class)
public class GreetingBean implements GreetingService {

    @PersistenceContext
    private EntityManager em;

    @GET
    @Produces(MediaType.APPLICATION_JSON)
    @Override
    public Greeting greet() {

        return new Greeting(new Random().nextInt(),
            "Minions ipsum jeje hahaha poulet tikka masala tatata bala tu. Po kass tatata bala tu poopayee la bodaaa tatata bala tu underweaaar hahaha.");

    }

    @POST
    @Consumes(MediaType.APPLICATION_JSON)
    @Override
    public void probe(Greeting greeting) {
        em.persist(new Item()); // GreetingBean.java:45
    }

}

我正在复制堆栈跟踪，如下所示：

“根异常为javax.naming.NameNotFoundException:没有绑定到名称java:module/GreetingBean的对象”

Warning:   An instance of EJB class, hu.igergo.java.dummy.ejb.services.GreetingBean, could not be looked up using simple form name. Attempting to look up using the fully-qualified form name.
javax.naming.NamingException: Lookup failed for 'java:module/GreetingBean' in SerialContext[myEnv={java.naming.factory.initial=com.sun.enterprise.naming.impl.SerialInitContextFactory, 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: No object bound to name java:module/GreetingBean]
    at com.sun.enterprise.naming.impl.SerialContext.lookup(SerialContext.java:491)
    at com.sun.enterprise.naming.impl.SerialContext.lookup(SerialContext.java:438)
    at javax.naming.InitialContext.lookup(InitialContext.java:411)
    at javax.naming.InitialContext.lookup(InitialContext.java:411)
    at org.glassfish.jersey.gf.ejb.EjbComponentProvider.lookupSimpleForm(EjbComponentProvider.java:318)
    at org.glassfish.jersey.gf.ejb.EjbComponentProvider.lookup(EjbComponentProvider.java:308)
    at org.glassfish.jersey.gf.ejb.EjbComponentProvider.access$000(EjbComponentProvider.java:85)
    at org.glassfish.jersey.gf.ejb.EjbComponentProvider$EjbFactory.provide(EjbComponentProvider.java:105)
    at org.jvnet.hk2.internal.FactoryCreator.create(FactoryCreator.java:96)
    at org.jvnet.hk2.internal.SystemDescriptor.create(SystemDescriptor.java:448)
    at org.jvnet.hk2.internal.PerLookupContext.findOrCreate(PerLookupContext.java:69)
    at org.jvnet.hk2.internal.Utilities.createService(Utilities.java:2204)
    at org.jvnet.hk2.internal.ServiceLocatorImpl.getService(ServiceLocatorImpl.java:579)
    at org.jvnet.hk2.internal.ServiceLocatorImpl.getService(ServiceLocatorImpl.java:566)
    at org.glassfish.jersey.internal.inject.Injections.getOrCreate(Injections.java:172)
    at org.glassfish.jersey.server.model.MethodHandler$ClassBasedMethodHandler.getInstance(MethodHandler.java:185)
    at org.glassfish.jersey.server.internal.routing.PushMethodHandlerRouter.apply(PushMethodHandlerRouter.java:105)
    at org.glassfish.jersey.server.internal.routing.RoutingStage._apply(RoutingStage.java:118)
    at org.glassfish.jersey.server.internal.routing.RoutingStage._apply(RoutingStage.java:121)
    at org.glassfish.jersey.server.internal.routing.RoutingStage._apply(RoutingStage.java:121)
    at org.glassfish.jersey.server.internal.routing.RoutingStage._apply(RoutingStage.java:121)
    at org.glassfish.jersey.server.internal.routing.RoutingStage.apply(RoutingStage.java:102)
    at org.glassfish.jersey.server.internal.routing.RoutingStage.apply(RoutingStage.java:62)
    at org.glassfish.jersey.process.internal.Stages.process(Stages.java:197)
    at org.glassfish.jersey.server.ServerRuntime$1.run(ServerRuntime.java:215)
    at org.glassfish.jersey.internal.Errors$1.call(Errors.java:271)
    at org.glassfish.jersey.internal.Errors$1.call(Errors.java:267)
    at org.glassfish.jersey.internal.Errors.process(Errors.java:315)
    at org.glassfish.jersey.internal.Errors.process(Errors.java:297)
    at org.glassfish.jersey.internal.Errors.process(Errors.java:267)
    at org.glassfish.jersey.process.internal.RequestScope.runInScope(RequestScope.java:317)
    at org.glassfish.jersey.server.ServerRuntime.process(ServerRuntime.java:198)
    at org.glassfish.jersey.server.ApplicationHandler.handle(ApplicationHandler.java:946)
    at org.glassfish.jersey.servlet.WebComponent.service(WebComponent.java:323)
    at org.glassfish.jersey.servlet.ServletContainer.service(ServletContainer.java:372)
    at org.glassfish.jersey.servlet.ServletContainer.service(ServletContainer.java:335)
    at org.glassfish.jersey.servlet.ServletContainer.service(ServletContainer.java:218)
    at org.apache.catalina.core.StandardWrapper.service(StandardWrapper.java:1682)
    at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:318)
    at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:160)
    at org.apache.catalina.core.StandardPipeline.doInvoke(StandardPipeline.java:734)
    at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:673)
    at com.sun.enterprise.web.WebPipeline.invoke(WebPipeline.java:99)
    at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:174)
    at org.apache.catalina.connector.CoyoteAdapter.doService(CoyoteAdapter.java:357)
    at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:260)
    at com.sun.enterprise.v3.services.impl.ContainerMapper.service(ContainerMapper.java:188)
    at org.glassfish.grizzly.http.server.HttpHandler.runService(HttpHandler.java:191)
    at org.glassfish.grizzly.http.server.HttpHandler.doHandle(HttpHandler.java:168)
    at org.glassfish.grizzly.http.server.HttpServerFilter.handleRead(HttpServerFilter.java:189)
    at org.glassfish.grizzly.filterchain.ExecutorResolver$9.execute(ExecutorResolver.java:119)
    at org.glassfish.grizzly.filterchain.DefaultFilterChain.executeFilter(DefaultFilterChain.java:288)
    at org.glassfish.grizzly.filterchain.DefaultFilterChain.executeChainPart(DefaultFilterChain.java:206)
    at org.glassfish.grizzly.filterchain.DefaultFilterChain.execute(DefaultFilterChain.java:136)
    at org.glassfish.grizzly.filterchain.DefaultFilterChain.process(DefaultFilterChain.java:114)
    at org.glassfish.grizzly.ProcessorExecutor.execute(ProcessorExecutor.java:77)
    at org.glassfish.grizzly.nio.transport.TCPNIOTransport.fireIOEvent(TCPNIOTransport.java:838)
    at org.glassfish.grizzly.strategies.AbstractIOStrategy.fireIOEvent(AbstractIOStrategy.java:113)
    at org.glassfish.grizzly.strategies.WorkerThreadIOStrategy.run0(WorkerThreadIOStrategy.java:115)
    at org.glassfish.grizzly.strategies.WorkerThreadIOStrategy.access$100(WorkerThreadIOStrategy.java:55)
    at org.glassfish.grizzly.strategies.WorkerThreadIOStrategy$WorkerThreadRunnable.run(WorkerThreadIOStrategy.java:135)
    at org.glassfish.grizzly.threadpool.AbstractThreadPool$Worker.doWork(AbstractThreadPool.java:564)
    at org.glassfish.grizzly.threadpool.AbstractThreadPool$Worker.run(AbstractThreadPool.java:544)
    at java.lang.Thread.run(Thread.java:745)
Caused by: javax.naming.NameNotFoundException: No object bound to name java:module/GreetingBean
    at com.sun.enterprise.naming.impl.GlassfishNamingManagerImpl.lookup(GlassfishNamingManagerImpl.java:741)
    at com.sun.enterprise.naming.impl.GlassfishNamingManagerImpl.lookup(GlassfishNamingManagerImpl.java:715)
    at com.sun.enterprise.naming.impl.JavaURLContext.lookup(JavaURLContext.java:167)
    at com.sun.enterprise.naming.impl.SerialContext.lookup(SerialContext.java:471)
    ... 63 more

Severe:   javax.naming.NamingException: Lookup failed for 'java:module/GreetingBean!hu.igergo.java.dummy.ejb.services.GreetingBean' in SerialContext[myEnv={java.naming.factory.initial=com.sun.enterprise.naming.impl.SerialInitContextFactory, 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: No object bound to name java:module/GreetingBean!hu.igergo.java.dummy.ejb.services.GreetingBean]
    at com.sun.enterprise.naming.impl.SerialContext.lookup(SerialContext.java:491)
    at com.sun.enterprise.naming.impl.SerialContext.lookup(SerialContext.java:438)
    at javax.naming.InitialContext.lookup(InitialContext.java:411)
    at javax.naming.InitialContext.lookup(InitialContext.java:411)
    at org.glassfish.jersey.gf.ejb.EjbComponentProvider.lookupFullyQualifiedForm(EjbComponentProvider.java:323)
    at org.glassfish.jersey.gf.ejb.EjbComponentProvider.lookup(EjbComponentProvider.java:312)
    at org.glassfish.jersey.gf.ejb.EjbComponentProvider.access$000(EjbComponentProvider.java:85)
    at org.glassfish.jersey.gf.ejb.EjbComponentProvider$EjbFactory.provide(EjbComponentProvider.java:105)
    at org.jvnet.hk2.internal.FactoryCreator.create(FactoryCreator.java:96)
    at org.jvnet.hk2.internal.SystemDescriptor.create(SystemDescriptor.java:448)
    at org.jvnet.hk2.internal.PerLookupContext.findOrCreate(PerLookupContext.java:69)
    at org.jvnet.hk2.internal.Utilities.createService(Utilities.java:2204)
    at org.jvnet.hk2.internal.ServiceLocatorImpl.getService(ServiceLocatorImpl.java:579)
    at org.jvnet.hk2.internal.ServiceLocatorImpl.getService(ServiceLocatorImpl.java:566)
    at org.glassfish.jersey.internal.inject.Injections.getOrCreate(Injections.java:172)
    at org.glassfish.jersey.server.model.MethodHandler$ClassBasedMethodHandler.getInstance(MethodHandler.java:185)
    at org.glassfish.jersey.server.internal.routing.PushMethodHandlerRouter.apply(PushMethodHandlerRouter.java:105)
    at org.glassfish.jersey.server.internal.routing.RoutingStage._apply(RoutingStage.java:118)
    at org.glassfish.jersey.server.internal.routing.RoutingStage._apply(RoutingStage.java:121)
    at org.glassfish.jersey.server.internal.routing.RoutingStage._apply(RoutingStage.java:121)
    at org.glassfish.jersey.server.internal.routing.RoutingStage._apply(RoutingStage.java:121)
    at org.glassfish.jersey.server.internal.routing.RoutingStage.apply(RoutingStage.java:102)
    at org.glassfish.jersey.server.internal.routing.RoutingStage.apply(RoutingStage.java:62)
    at org.glassfish.jersey.process.internal.Stages.process(Stages.java:197)
    at org.glassfish.jersey.server.ServerRuntime$1.run(ServerRuntime.java:215)
    at org.glassfish.jersey.internal.Errors$1.call(Errors.java:271)
    at org.glassfish.jersey.internal.Errors$1.call(Errors.java:267)
    at org.glassfish.jersey.internal.Errors.process(Errors.java:315)
    at org.glassfish.jersey.internal.Errors.process(Errors.java:297)
    at org.glassfish.jersey.internal.Errors.process(Errors.java:267)
    at org.glassfish.jersey.process.internal.RequestScope.runInScope(RequestScope.java:317)
    at org.glassfish.jersey.server.ServerRuntime.process(ServerRuntime.java:198)
    at org.glassfish.jersey.server.ApplicationHandler.handle(ApplicationHandler.java:946)
    at org.glassfish.jersey.servlet.WebComponent.service(WebComponent.java:323)
    at org.glassfish.jersey.servlet.ServletContainer.service(ServletContainer.java:372)
    at org.glassfish.jersey.servlet.ServletContainer.service(ServletContainer.java:335)
    at org.glassfish.jersey.servlet.ServletContainer.service(ServletContainer.java:218)
    at org.apache.catalina.core.StandardWrapper.service(StandardWrapper.java:1682)
    at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:318)
    at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:160)
    at org.apache.catalina.core.StandardPipeline.doInvoke(StandardPipeline.java:734)
    at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:673)
    at com.sun.enterprise.web.WebPipeline.invoke(WebPipeline.java:99)
    at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:174)
    at org.apache.catalina.connector.CoyoteAdapter.doService(CoyoteAdapter.java:357)
    at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:260)
    at com.sun.enterprise.v3.services.impl.ContainerMapper.service(ContainerMapper.java:188)
    at org.glassfish.grizzly.http.server.HttpHandler.runService(HttpHandler.java:191)
    at org.glassfish.grizzly.http.server.HttpHandler.doHandle(HttpHandler.java:168)
    at org.glassfish.grizzly.http.server.HttpServerFilter.handleRead(HttpServerFilter.java:189)
    at org.glassfish.grizzly.filterchain.ExecutorResolver$9.execute(ExecutorResolver.java:119)
    at org.glassfish.grizzly.filterchain.DefaultFilterChain.executeFilter(DefaultFilterChain.java:288)
    at org.glassfish.grizzly.filterchain.DefaultFilterChain.executeChainPart(DefaultFilterChain.java:206)
    at org.glassfish.grizzly.filterchain.DefaultFilterChain.execute(DefaultFilterChain.java:136)
    at org.glassfish.grizzly.filterchain.DefaultFilterChain.process(DefaultFilterChain.java:114)
    at org.glassfish.grizzly.ProcessorExecutor.execute(ProcessorExecutor.java:77)
    at org.glassfish.grizzly.nio.transport.TCPNIOTransport.fireIOEvent(TCPNIOTransport.java:838)
    at org.glassfish.grizzly.strategies.AbstractIOStrategy.fireIOEvent(AbstractIOStrategy.java:113)
    at org.glassfish.grizzly.strategies.WorkerThreadIOStrategy.run0(WorkerThreadIOStrategy.java:115)
    at org.glassfish.grizzly.strategies.WorkerThreadIOStrategy.access$100(WorkerThreadIOStrategy.java:55)
    at org.glassfish.grizzly.strategies.WorkerThreadIOStrategy$WorkerThreadRunnable.run(WorkerThreadIOStrategy.java:135)
    at org.glassfish.grizzly.threadpool.AbstractThreadPool$Worker.doWork(AbstractThreadPool.java:564)
    at org.glassfish.grizzly.threadpool.AbstractThreadPool$Worker.run(AbstractThreadPool.java:544)
    at java.lang.Thread.run(Thread.java:745)
Caused by: javax.naming.NameNotFoundException: No object bound to name java:module/GreetingBean!hu.igergo.java.dummy.ejb.services.GreetingBean
    at com.sun.enterprise.naming.impl.GlassfishNamingManagerImpl.lookup(GlassfishNamingManagerImpl.java:741)
    at com.sun.enterprise.naming.impl.GlassfishNamingManagerImpl.lookup(GlassfishNamingManagerImpl.java:715)
    at com.sun.enterprise.naming.impl.JavaURLContext.lookup(JavaURLContext.java:167)
    at com.sun.enterprise.naming.impl.SerialContext.lookup(SerialContext.java:471)
    ... 63 more

Warning:   StandardWrapperValve[hu.igergo.java.dummy.ejb.RestApplication]: Servlet.service() for servlet hu.igergo.java.dummy.ejb.RestApplication threw exception
java.lang.NullPointerException
    at hu.igergo.java.dummy.ejb.services.GreetingBean.probe(GreetingBean.java:45)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:606)
    at org.glassfish.jersey.gf.ejb.EjbComponentProvider$2.invoke(EjbComponentProvider.java:261)
    at org.glassfish.jersey.server.model.internal.AbstractJavaResourceMethodDispatcher.invoke(AbstractJavaResourceMethodDispatcher.java:125)
    at org.glassfish.jersey.server.model.internal.JavaResourceMethodDispatcherProvider$VoidOutInvoker.doDispatch(JavaResourceMethodDispatcherProvider.java:136)
    at org.glassfish.jersey.server.model.internal.AbstractJavaResourceMethodDispatcher.dispatch(AbstractJavaResourceMethodDispatcher.java:91)
    at org.glassfish.jersey.server.model.ResourceMethodInvoker.invoke(ResourceMethodInvoker.java:346)
    at org.glassfish.jersey.server.model.ResourceMethodInvoker.apply(ResourceMethodInvoker.java:341)
    at org.glassfish.jersey.server.model.ResourceMethodInvoker.apply(ResourceMethodInvoker.java:101)
    at org.glassfish.jersey.server.ServerRuntime$1.run(ServerRuntime.java:224)
    at org.glassfish.jersey.internal.Errors$1.call(Errors.java:271)
    at org.glassfish.jersey.internal.Errors$1.call(Errors.java:267)
    at org.glassfish.jersey.internal.Errors.process(Errors.java:315)
    at org.glassfish.jersey.internal.Errors.process(Errors.java:297)
    at org.glassfish.jersey.internal.Errors.process(Errors.java:267)
    at org.glassfish.jersey.process.internal.RequestScope.runInScope(RequestScope.java:317)
    at org.glassfish.jersey.server.ServerRuntime.process(ServerRuntime.java:198)
    at org.glassfish.jersey.server.ApplicationHandler.handle(ApplicationHandler.java:946)
    at org.glassfish.jersey.servlet.WebComponent.service(WebComponent.java:323)
    at org.glassfish.jersey.servlet.ServletContainer.service(ServletContainer.java:372)
    at org.glassfish.jersey.servlet.ServletContainer.service(ServletContainer.java:335)
    at org.glassfish.jersey.servlet.ServletContainer.service(ServletContainer.java:218)
    at org.apache.catalina.core.StandardWrapper.service(StandardWrapper.java:1682)
    at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:318)
    at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:160)
    at org.apache.catalina.core.StandardPipeline.doInvoke(StandardPipeline.java:734)
    at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:673)
    at com.sun.enterprise.web.WebPipeline.invoke(WebPipeline.java:99)
    at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:174)
    at org.apache.catalina.connector.CoyoteAdapter.doService(CoyoteAdapter.java:357)
    at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:260)
    at com.sun.enterprise.v3.services.impl.ContainerMapper.service(ContainerMapper.java:188)
    at org.glassfish.grizzly.http.server.HttpHandler.runService(HttpHandler.java:191)
    at org.glassfish.grizzly.http.server.HttpHandler.doHandle(HttpHandler.java:168)
    at org.glassfish.grizzly.http.server.HttpServerFilter.handleRead(HttpServerFilter.java:189)
    at org.glassfish.grizzly.filterchain.ExecutorResolver$9.execute(ExecutorResolver.java:119)
    at org.glassfish.grizzly.filterchain.DefaultFilterChain.executeFilter(DefaultFilterChain.java:288)
    at org.glassfish.grizzly.filterchain.DefaultFilterChain.executeChainPart(DefaultFilterChain.java:206)
    at org.glassfish.grizzly.filterchain.DefaultFilterChain.execute(DefaultFilterChain.java:136)
    at org.glassfish.grizzly.filterchain.DefaultFilterChain.process(DefaultFilterChain.java:114)
    at org.glassfish.grizzly.ProcessorExecutor.execute(ProcessorExecutor.java:77)
    at org.glassfish.grizzly.nio.transport.TCPNIOTransport.fireIOEvent(TCPNIOTransport.java:838)
    at org.glassfish.grizzly.strategies.AbstractIOStrategy.fireIOEvent(AbstractIOStrategy.java:113)
    at org.glassfish.grizzly.strategies.WorkerThreadIOStrategy.run0(WorkerThreadIOStrategy.java:115)
    at org.glassfish.grizzly.strategies.WorkerThreadIOStrategy.access$100(WorkerThreadIOStrategy.java:55)
    at org.glassfish.grizzly.strategies.WorkerThreadIOStrategy$WorkerThreadRunnable.run(WorkerThreadIOStrategy.java:135)
    at org.glassfish.grizzly.threadpool.AbstractThreadPool$Worker.doWork(AbstractThreadPool.java:564)
    at org.glassfish.grizzly.threadpool.AbstractThreadPool$Worker.run(AbstractThreadPool.java:544)
    at java.lang.Thread.run(Thread.java:745)

我正在使用：

NetBeans 8.1
日食2.5.2
JavaEE7.0
玻璃鱼4.0

我做错了什么

编辑：

如果我尝试通过单一客户机，它是工作得很好

Context ctx = new InitialContext();

GreetingService bean = (GreetingService) ctx.lookup(
        // "java:global/dummy-backend-ear/dummy-backend-ejb-1.0-SNAPSHOT/greetingBean"
        // "java:global/dummy-backend-ear/dummy-backend-ejb-1.0-SNAPSHOT/greetingBean!hu.igergo.java.dummy.interfaces.services.GreetingService"
        "greeting"
        // "greeting#hu.igergo.java.dummy.interfaces.services.GreetingService"
    );
ctx.close();

bean.probe(new Greeting());

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