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我編寫了一個EJB模塊，並將其部署到GlassFish。然後，我寫了一個entreprise應用程序客戶端，並將其部署到GlassFish。對於部署的EJB，JNDI查找失敗
無狀態bean的代碼：
package remote;
@Stateless
@Remote(IPersonEJB.class)
@LocalBean
public class PersonEJB implements IPersonEJB{
@PersistenceContext(unitName = "JobsPU")
private EntityManager em;
@Override
public Person giveJobToPerson(Job job, Person person) {
em.persist(person);
em.flush();
job.setEmployeeID(person.getId());
em.persist(job);
return person;
}
// Add business logic below. (Right-click in editor and choose
// "Insert Code > Add Business Method")
@Override
public Person getPerson(Long id) {
return em.find(Person.class, id);
}
}
的persistence.xml部署EBJ的：
<?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="JobsPU" transaction-type="JTA">
<jta-data-source>jdbc/__TimerPool</jta-data-source>
<exclude-unlisted-classes>false</exclude-unlisted-classes>
<properties>
<property name="eclipselink.logging.level" value="INFO"/>
<property name="eclipselink.ddl-generation" value="drop-and-create-tables"/>
<property name="eclipselink.target-database" value="Derby"/>
</properties>
</persistence-unit>
</persistence>
我導入項目作爲一個庫到客戶端的項目（通過Netbeans的），才能使用我需要的類：
package jobsclient;
import Entities.Address;
import Entities.Job;
import Entities.Person;
import javax.naming.Context;
import javax.naming.InitialContext;
import javax.naming.NamingException;
import remote.IPersonEJB;
public class Main {
public static void main(String[] args) throws NamingException {
Context ctx = new InitialContext();
IPersonEJB personEJB = (IPersonEJB) ctx.lookup("java:global/Jobs/IPersonEJB!remote.IPersonEJB");
Address add = new Address("Fake street", "Fake city", "FC", "83100");
Person p = new Person("Jack", "Black", add);
Job j = new Job("Programmer", 3500f);
Person persistente = personEJB.giveJobToPerson(j, p);
if (persistente.getId() != null) {
System.out.println("Creazione effettuata");
} }
}
如果我嘗試運行客戶端，我得到這些異常S：
Warning: C:\Users\Paolo\Documents\NetBeansProjects\JobsClient\dist\gfdeploy\JobsClient does not exist.
java.lang.reflect.InvocationTargetException
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at org.glassfish.appclient.client.acc.AppClientContainer.launch(AppClientContainer.java:446)
at org.glassfish.appclient.client.AppClientFacade.main(AppClientFacade.java:166)
Caused by: javax.naming.NamingException: Lookup failed for 'java:global/Jobs/IPersonEJB!remote.IPersonEJB' in SerialContext[myEnv={java.naming.factory.initial=com.sun.enterprise.naming.impl.SerialInitContextFactory, java.naming.factory.url.pkgs=com.sun.enterprise.naming, java.naming.factory.state=com.sun.corba.ee.impl.presentation.rmi.JNDIStateFactoryImpl} [Root exception is javax.naming.NameNotFoundException: IPersonEJB!remote.IPersonEJB not found]
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:417)
at jobsclient.Main.main(Main.java:28)
... 6 more
Caused by: javax.naming.NameNotFoundException: IPersonEJB!remote.IPersonEJB 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.TransientContext.lookup(TransientContext.java:208)
at com.sun.enterprise.naming.impl.TransientContext.lookup(TransientContext.java:208)
at com.sun.enterprise.naming.impl.SerialContextProviderImpl.lookup(SerialContextProviderImpl.java:66)
at com.sun.enterprise.naming.impl.RemoteSerialContextProviderImpl.lookup(RemoteSerialContextProviderImpl.java:109)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at com.sun.corba.ee.impl.presentation.rmi.ReflectiveTie.dispatchToMethod(ReflectiveTie.java:143)
at com.sun.corba.ee.impl.presentation.rmi.ReflectiveTie._invoke(ReflectiveTie.java:173)
at com.sun.corba.ee.impl.protocol.ServerRequestDispatcherImpl.dispatchToServant(ServerRequestDispatcherImpl.java:528)
at com.sun.corba.ee.impl.protocol.ServerRequestDispatcherImpl.dispatch(ServerRequestDispatcherImpl.java:199)
at com.sun.corba.ee.impl.protocol.MessageMediatorImpl.handleRequestRequest(MessageMediatorImpl.java:1549)
at com.sun.corba.ee.impl.protocol.MessageMediatorImpl.handleRequest(MessageMediatorImpl.java:1425)
at com.sun.corba.ee.impl.protocol.MessageMediatorImpl.handleInput(MessageMediatorImpl.java:930)
at com.sun.corba.ee.impl.protocol.giopmsgheaders.RequestMessage_1_2.callback(RequestMessage_1_2.java:213)
at com.sun.corba.ee.impl.protocol.MessageMediatorImpl.handleRequest(MessageMediatorImpl.java:694)
at com.sun.corba.ee.impl.protocol.MessageMediatorImpl.dispatch(MessageMediatorImpl.java:496)
at com.sun.corba.ee.impl.protocol.MessageMediatorImpl.doWork(MessageMediatorImpl.java:2222)
at com.sun.corba.ee.impl.threadpool.ThreadPoolImpl$WorkerThread.performWork(ThreadPoolImpl.java:497)
at com.sun.corba.ee.impl.threadpool.ThreadPoolImpl$WorkerThread.run(ThreadPoolImpl.java:540)
Java Result: 1
run:
BUILD SUCCESSFUL (total time: 9 seconds)
我試圖找到一個解決方案，我看這樣一個在這裏＃2的一些其他問題，但我沒能解決我的問題。我想這是JNDI名稱的問題？但是我找不到它在任何地方部署的名稱（我在glassfish管理控制檯中到處尋找），我認爲名稱字符串的格式是正確的（按照我閱讀的指南進行）。
我使用NetBeans的部署功能部署了兩個應用程序。也許我錯過了一些配置文件（ejb.xml或其他）？