本文介绍了Glassfish错误：NameNotFoundException所以servlet不能注入EJB的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！
问题描述
应该如何定位EJB ConverterBean 的位置和方式，以便 ConverterServlet 可以注入EJB？不：
Where and how should the EJB ConverterBean be located so that ConverterServlet can inject the EJB? Does not:
我正在阅读Java EE 7
I'm reading the Java EE 7 tutorial on this topic, of course.
浏览器中的 InjectionException
HTTP Status 500 - Internal Server Error
type Exception report
messageInternal Server Error
descriptionThe server encountered an internal error that prevented it from fulfilling this request.
exception
javax.servlet.ServletException: Error instantiating servlet class net.bounceme.dur.servlets.ConverterServlet
root cause
com.sun.enterprise.container.common.spi.util.InjectionException: Error creating managed object for class: class net.bounceme.dur.servlets.ConverterServlet
root cause
java.lang.IllegalStateException: Exception attempting to inject Remote ejb-ref name=net.bounceme.dur.servlets.ConverterServlet/converter,Remote 3.x interface =net.bounceme.dur.ejb.ConverterBean,ejb-link=null,lookup=,mappedName=,jndi-name=net.bounceme.dur.ejb.ConverterBean,refType=Session into class net.bounceme.dur.servlets.ConverterServlet: Lookup failed for 'java:comp/env/net.bounceme.dur.servlets.ConverterServlet/converter' 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 cause
com.sun.enterprise.container.common.spi.util.InjectionException: Exception attempting to inject Remote ejb-ref name=net.bounceme.dur.servlets.ConverterServlet/converter,Remote 3.x interface =net.bounceme.dur.ejb.ConverterBean,ejb-link=null,lookup=,mappedName=,jndi-name=net.bounceme.dur.ejb.ConverterBean,refType=Session into class net.bounceme.dur.servlets.ConverterServlet: Lookup failed for 'java:comp/env/net.bounceme.dur.servlets.ConverterServlet/converter' 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 cause
javax.naming.NamingException: Lookup failed for 'java:comp/env/net.bounceme.dur.servlets.ConverterServlet/converter' 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.NamingException: Exception resolving Ejb for 'Remote ejb-ref name=net.bounceme.dur.servlets.ConverterServlet/converter,Remote 3.x interface =net.bounceme.dur.ejb.ConverterBean,ejb-link=null,lookup=,mappedName=,jndi-name=net.bounceme.dur.ejb.ConverterBean,refType=Session' . Actual (possibly internal) Remote JNDI name used for lookup is 'net.bounceme.dur.ejb.ConverterBean#net.bounceme.dur.ejb.ConverterBean' [Root exception is javax.naming.NamingException: Lookup failed for 'net.bounceme.dur.ejb.ConverterBean#net.bounceme.dur.ejb.ConverterBean' 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: net.bounceme.dur.ejb.ConverterBean#net.bounceme.dur.ejb.ConverterBean not found]]]
root cause
javax.naming.NamingException: Exception resolving Ejb for 'Remote ejb-ref name=net.bounceme.dur.servlets.ConverterServlet/converter,Remote 3.x interface =net.bounceme.dur.ejb.ConverterBean,ejb-link=null,lookup=,mappedName=,jndi-name=net.bounceme.dur.ejb.ConverterBean,refType=Session' . Actual (possibly internal) Remote JNDI name used for lookup is 'net.bounceme.dur.ejb.ConverterBean#net.bounceme.dur.ejb.ConverterBean' [Root exception is javax.naming.NamingException: Lookup failed for 'net.bounceme.dur.ejb.ConverterBean#net.bounceme.dur.ejb.ConverterBean' 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: net.bounceme.dur.ejb.ConverterBean#net.bounceme.dur.ejb.ConverterBean not found]]
root cause
javax.naming.NamingException: Lookup failed for 'net.bounceme.dur.ejb.ConverterBean#net.bounceme.dur.ejb.ConverterBean' 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: net.bounceme.dur.ejb.ConverterBean#net.bounceme.dur.ejb.ConverterBean not found]
root cause
javax.naming.NameNotFoundException: net.bounceme.dur.ejb.ConverterBean#net.bounceme.dur.ejb.ConverterBean not found
note The full stack traces of the exception and its root causes are available in the GlassFish Server Open Source Edition 4.1.1 logs.
GlassFish Server Open Source Edition 4.1.1
摘录自 tail -f 的Glassfish日志从部署到 NameNotFoundException ：
Excerpt from tail -f of the Glassfish log from deployment to NameNotFoundException:
[2017-04-18T23:23:53.687-0700] [glassfish 4.1] [INFO] [] [javax.enterprise.system.tools.deployment.common] [tid: _ThreadID=154 _ThreadName=admin-listener(8)] [timeMillis: 1492583033687] [levelValue: 800] [[
visiting unvisited references]]
[2017-04-18T23:23:53.709-0700] [glassfish 4.1] [INFO] [] [javax.enterprise.system.tools.deployment.common] [tid: _ThreadID=154 _ThreadName=admin-listener(8)] [timeMillis: 1492583033709] [levelValue: 800] [[
visiting unvisited references]]
[2017-04-18T23:23:53.719-0700] [glassfish 4.1] [INFO] [] [javax.enterprise.system.tools.deployment.common] [tid: _ThreadID=154 _ThreadName=admin-listener(8)] [timeMillis: 1492583033719] [levelValue: 800] [[
visiting unvisited references]]
[2017-04-18T23:23:53.725-0700] [glassfish 4.1] [INFO] [] [javax.enterprise.system.tools.deployment.common] [tid: _ThreadID=154 _ThreadName=admin-listener(8)] [timeMillis: 1492583033725] [levelValue: 800] [[
visiting unvisited references]]
[2017-04-18T23:23:53.757-0700] [glassfish 4.1] [INFO] [AS-EJB-00054] [javax.enterprise.ejb.container] [tid: _ThreadID=154 _ThreadName=admin-listener(8)] [timeMillis: 1492583033757] [levelValue: 800] [[
Portable JNDI names for EJB ConverterBean: [java:global/ConverterWebAppicationArchiveWithEJB/ConverterBean, java:global/ConverterWebAppicationArchiveWithEJB/ConverterBean!net.bounceme.dur.ejb.ConverterBeanLocal]]]
[2017-04-18T23:23:53.787-0700] [glassfish 4.1] [WARN] [] [org.jboss.weld.Event] [tid: _ThreadID=154 _ThreadName=admin-listener(8)] [timeMillis: 1492583033787] [levelValue: 900] [[
WELD-000411: Observer method [BackedAnnotatedMethod] public org.glassfish.jms.injection.JMSCDIExtension.processAnnotatedType(@Observes ProcessAnnotatedType<Object>) receives events for all annotated types. Consider restricting events using @WithAnnotations or a generic type with bounds.]]
[2017-04-18T23:23:53.795-0700] [glassfish 4.1] [WARN] [] [org.jboss.weld.Event] [tid: _ThreadID=154 _ThreadName=admin-listener(8)] [timeMillis: 1492583033795] [levelValue: 900] [[
WELD-000411: Observer method [BackedAnnotatedMethod] private org.glassfish.jersey.ext.cdi1x.internal.CdiComponentProvider.processAnnotatedType(@Observes ProcessAnnotatedType<Object>) receives events for all annotated types. Consider restricting events using @WithAnnotations or a generic type with bounds.]]
[2017-04-18T23:23:53.799-0700] [glassfish 4.1] [WARN] [] [org.jboss.weld.Event] [tid: _ThreadID=154 _ThreadName=admin-listener(8)] [timeMillis: 1492583033799] [levelValue: 900] [[
WELD-000411: Observer method [BackedAnnotatedMethod] org.glassfish.sse.impl.ServerSentEventCdiExtension.processAnnotatedType(@Observes ProcessAnnotatedType<Object>, BeanManager) receives events for all annotated types. Consider restricting events using @WithAnnotations or a generic type with bounds.]]
[2017-04-18T23:23:53.966-0700] [glassfish 4.1] [INFO] [AS-WEB-GLUE-00172] [javax.enterprise.web] [tid: _ThreadID=154 _ThreadName=admin-listener(8)] [timeMillis: 1492583033966] [levelValue: 800] [[
Loading application [ConverterWebAppicationArchiveWithEJB] at [/ConverterWebAppicationArchiveWithEJB]]]
[2017-04-18T23:23:53.976-0700] [glassfish 4.1] [INFO] [] [javax.enterprise.system.core] [tid: _ThreadID=154 _ThreadName=admin-listener(8)] [timeMillis: 1492583033976] [levelValue: 800] [[
ConverterWebAppicationArchiveWithEJB was successfully deployed in 294 milliseconds.]]
[2017-04-18T23:23:54.263-0700] [glassfish 4.1] [INFO] [] [javax.enterprise.web] [tid: _ThreadID=95 _ThreadName=http-listener-1(3)] [timeMillis: 1492583034263] [levelValue: 800] [[
WebModule[null] ServletContext.log():Marking servlet net.bounceme.dur.servlets.ConverterServlet as unavailable]]
[2017-04-18T23:23:54.272-0700] [glassfish 4.1] [WARNING] [] [javax.enterprise.web] [tid: _ThreadID=95 _ThreadName=http-listener-1(3)] [timeMillis: 1492583034272] [levelValue: 900] [[
StandardWrapperValve[net.bounceme.dur.servlets.ConverterServlet]: Allocate exception for servlet net.bounceme.dur.servlets.ConverterServlet
javax.naming.NameNotFoundException: net.bounceme.dur.ejb.ConverterBean#net.bounceme.dur.ejb.ConverterBean not found
at com.sun.enterprise.naming.impl.TransientContext.doLookup(TransientContext.java:237)
at com.sun.enterprise.naming.impl.TransientContext.lookup(TransientContext.java:204)
at com.sun.enterprise.naming.impl.SerialContextProviderImpl.lookup(SerialContextProviderImpl.java:66)
at com.sun.enterprise.naming.impl.LocalSerialContextProviderImpl.lookup(LocalSerialContextProviderImpl.java:114)
at com.sun.enterprise.naming.impl.SerialContext.lookup(SerialContext.java:478)
at com.sun.enterprise.naming.impl.SerialContext.lookup(SerialContext.java:438)
at javax.naming.InitialContext.lookup(InitialContext.java:417)
at javax.naming.InitialContext.lookup(InitialContext.java:417)
at com.sun.ejb.EjbNamingReferenceManagerImpl.resolveEjbReference(EjbNamingReferenceManagerImpl.java:183)
at com.sun.enterprise.container.common.impl.ComponentEnvManagerImpl$EjbReferenceProxy.create(ComponentEnvManagerImpl.java:1015)
at com.sun.enterprise.naming.impl.GlassfishNamingManagerImpl.lookup(GlassfishNamingManagerImpl.java:745)
at com.sun.enterprise.naming.impl.GlassfishNamingManagerImpl.lookup(GlassfishNamingManagerImpl.java:715)
at com.sun.enterprise.naming.impl.JavaURLContext.lookup(JavaURLContext.java:159)
at com.sun.enterprise.naming.impl.SerialContext.lookup(SerialContext.java:471)
at com.sun.enterprise.naming.impl.SerialContext.lookup(SerialContext.java:438)
at javax.naming.InitialContext.lookup(InitialContext.java:417)
at javax.naming.InitialContext.lookup(InitialContext.java:417)
at com.sun.enterprise.container.common.impl.util.InjectionManagerImpl._inject(InjectionManagerImpl.java:636)
at com.sun.enterprise.container.common.impl.util.InjectionManagerImpl.inject(InjectionManagerImpl.java:507)
at com.sun.enterprise.container.common.impl.util.InjectionManagerImpl.injectInstance(InjectionManagerImpl.java:170)
at org.glassfish.weld.services.InjectionServicesImpl.aroundInject(InjectionServicesImpl.java:165)
at org.jboss.weld.injection.InjectionContextImpl.run(InjectionContextImpl.java:46)
at org.jboss.weld.injection.producer.ResourceInjector.inject(ResourceInjector.java:72)
at org.jboss.weld.injection.producer.BasicInjectionTarget.inject(BasicInjectionTarget.java:121)
at org.glassfish.weld.services.JCDIServiceImpl.createManagedObject(JCDIServiceImpl.java:336)
at org.glassfish.weld.services.JCDIServiceImpl.createManagedObject(JCDIServiceImpl.java:263)
at com.sun.enterprise.container.common.impl.managedbean.ManagedBeanManagerImpl.createManagedBean(ManagedBeanManagerImpl.java:485)
at com.sun.enterprise.container.common.impl.managedbean.ManagedBeanManagerImpl.createManagedBean(ManagedBeanManagerImpl.java:439)
at com.sun.enterprise.container.common.impl.util.InjectionManagerImpl.createManagedObject(InjectionManagerImpl.java:336)
at com.sun.enterprise.web.WebContainer.createServletInstance(WebContainer.java:991)
at com.sun.enterprise.web.WebModule.createServletInstance(WebModule.java:2130)
at org.apache.catalina.core.StandardWrapper.loadServlet(StandardWrapper.java:1404)
at org.apache.catalina.core.StandardWrapper.allocate(StandardWrapper.java:1211)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:237)
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:416)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:283)
at com.sun.enterprise.v3.services.impl.ContainerMapper$HttpHandlerCallable.call(ContainerMapper.java:459)
at com.sun.enterprise.v3.services.impl.ContainerMapper.service(ContainerMapper.java:167)
at org.glassfish.grizzly.http.server.HttpHandler.runService(HttpHandler.java:206)
at org.glassfish.grizzly.http.server.HttpHandler.doHandle(HttpHandler.java:180)
at org.glassfish.grizzly.http.server.HttpServerFilter.handleRead(HttpServerFilter.java:235)
at org.glassfish.grizzly.filterchain.ExecutorResolver$9.execute(ExecutorResolver.java:119)
at org.glassfish.grizzly.filterchain.DefaultFilterChain.executeFilter(DefaultFilterChain.java:283)
at org.glassfish.grizzly.filterchain.DefaultFilterChain.executeChainPart(DefaultFilterChain.java:200)
at org.glassfish.grizzly.filterchain.DefaultFilterChain.execute(DefaultFilterChain.java:132)
at org.glassfish.grizzly.filterchain.DefaultFilterChain.process(DefaultFilterChain.java:111)
at org.glassfish.grizzly.ProcessorExecutor.execute(ProcessorExecutor.java:77)
at org.glassfish.grizzly.nio.transport.TCPNIOTransport.fireIOEvent(TCPNIOTransport.java:536)
at org.glassfish.grizzly.strategies.AbstractIOStrategy.fireIOEvent(AbstractIOStrategy.java:112)
at org.glassfish.grizzly.strategies.WorkerThreadIOStrategy.run0(WorkerThreadIOStrategy.java:117)
at org.glassfish.grizzly.strategies.WorkerThreadIOStrategy.access$100(WorkerThreadIOStrategy.java:56)
at org.glassfish.grizzly.strategies.WorkerThreadIOStrategy$WorkerThreadRunnable.run(WorkerThreadIOStrategy.java:137)
at org.glassfish.grizzly.threadpool.AbstractThreadPool$Worker.doWork(AbstractThreadPool.java:591)
at org.glassfish.grizzly.threadpool.AbstractThreadPool$Worker.run(AbstractThreadPool.java:571)
at java.lang.Thread.run(Thread.java:745)
]]
尝试注入 ConverterBean ：
package net.bounceme.dur.servlets;
import java.io.IOException;
import java.io.PrintWriter;
import java.math.BigDecimal;
import javax.ejb.EJB;
import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import net.bounceme.dur.ejb.ConverterBean;
@WebServlet("/converter")
public class ConverterServlet extends HttpServlet {
@EJB
ConverterBean converter;
protected void processRequest(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
response.setContentType("text/html;charset=UTF-8");
// converter = new ConverterBean();
try (PrintWriter out = response.getWriter()) {
/* TODO output your page here. You may use following sample code. */
out.println("<!DOCTYPE html>");
out.println("<html>");
out.println("<head>");
out.println("<title>Servlet ConverterServlet</title>");
out.println("</head>");
out.println("<body>");
out.println("what is the amount?");
out.println("<h1>Servlet ConverterServlet at " + request.getContextPath() + "</h1>");
String stringAmount = "999";
out.println("amount is " + stringAmount);
out.println("<p>");
BigDecimal dollars = new BigDecimal(stringAmount);
out.println("dollars:\t" + dollars + "\t" + dollars.getClass());
out.println("<p>");
// BigDecimal yen = converter.dollarToYen(dollars);
// BigDecimal euros = converter.yenToEuro(yen);
out.println("never executed..");
out.println("yen");
// out.println(yen);
out.println("<p>");
out.println("euros");
// out.println(euros);
out.println("<p>");
out.println("</body>");
out.println("</html>");
}
}
// <editor-fold defaultstate="collapsed" desc="HttpServlet methods. Click on the + sign on the left to edit the code.">
/**
* Handles the HTTP <code>GET</code> method.
*
* @param request servlet request
* @param response servlet response
* @throws ServletException if a servlet-specific error occurs
* @throws IOException if an I/O error occurs
*/
@Override
protected void doGet(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
processRequest(request, response);
}
/**
* Handles the HTTP <code>POST</code> method.
*
* @param request servlet request
* @param response servlet response
* @throws ServletException if a servlet-specific error occurs
* @throws IOException if an I/O error occurs
*/
@Override
protected void doPost(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
processRequest(request, response);
}
/**
* Returns a short description of the servlet.
*
* @return a String containing servlet description
*/
@Override
public String getServletInfo() {
return "Short description";
}// </editor-fold>
}
树项目结构：
.
├── build.xml
├── nbproject
│ ├── ant-deploy.xml
│ ├── build-impl.xml
│ ├── genfiles.properties
│ ├── private
│ │ └── private.properties
│ ├── project.properties
│ └── project.xml
├── src
│ ├── conf
│ │ └── MANIFEST.MF
│ └── java
│ └── net
│ └── bounceme
│ └── dur
│ ├── ejb
│ │ ├── ConverterBean.java
│ │ ├── ConverterBeanLocal.java
│ │ └── PropertiesReader.java
│ └── servlets
│ └── ConverterServlet.java
├── test
└── web
├── index.html
└── WEB-INF
└── web.xml
13 directories, 14 files
我尝试将 servlet 和 ConverterBean 也放在同一个包中。
I tried putting the servlet and ConverterBean in the same package, also.
推荐答案
您似乎已经为 ConverterBean 定义了一个本地界面，名为
You seem to have defined a local interface for ConverterBean called ConverterBeanLocal.
因此，您需要在注入点使用：
Therefore you will need to use that at the injection point:
@WebServlet("/converter")
public class ConverterServlet extends HttpServlet {
@EJB
ConverterBeanLocal converter;
或者，您可以摆脱 ConverterBeanLocal 接口，使您的代码更简单。
Alternatively, you could get rid of the ConverterBeanLocal interface altogether and make your code simpler.
这篇关于Glassfish错误：NameNotFoundException所以servlet不能注入EJB的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持！