我们有一个工作正常的JBoss v8“ Wildfly”部署，如下所示：
App-ear.ear
|_App-model.jar
|_App-ejb.jar
|_App-web.war
此部署在
persistence.xml内带有App-model.jar。现在，我想用另一个WAR模块部署第二个EAR，我可以独立于原始应用程序重新部署它。为此，我创建了第二个EAR，如下所示：Second-ear.ear
|_Second-web.war
第二个应用程序在Eclipse中进行开发（设置为Maven项目）时具有对
App-model.jar的类路径依赖关系，并且构建良好。为了在运行时使该依赖关系可用，我对Second-ear.ear/META-INF/jboss-deployment-structure.xml进行了如下编辑：<?xml version="1.0" encoding="UTF-8"?>
<jboss-deployment-structure xmlns="urn:jboss:deployment-structure:1.2">
<deployment>
<dependencies>
<module name="deployment.App-ear.ear.App-model.jar" />
</dependencies>
</deployment>
</jboss-deployment-structure>
但是，JBoss AS无法加载持久性，并显示以下错误：
2015-08-19 09:13:36,903 ERROR [] [ @ ] [] [MSC service thread 1-5] [fail] MSC000001: Failed to start service jboss.deployment.unit."Second-ear.ear".WeldStartService: org.jboss.msc.service.StartException in service jboss.deployment.unit."Second-ear.ear".WeldStartService: Failed to start service
at org.jboss.msc.service.ServiceControllerImpl$StartTask.run(ServiceControllerImpl.java:1904) [jboss-msc-1.2.2.Final.jar:1.2.2.Final]
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142) [rt.jar:1.8.0_25]
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617) [rt.jar:1.8.0_25]
at java.lang.Thread.run(Thread.java:745) [rt.jar:1.8.0_25]
Caused by: java.lang.IllegalArgumentException: JBAS016069: Error injecting persistence unit into CDI managed bean. Can't find a persistence unit named MyPersistenceUnitName in deployment Second-ear.ear
at org.jboss.as.weld.services.bootstrap.WeldJpaInjectionServices.getScopedPUName(WeldJpaInjectionServices.java:110)
at org.jboss.as.weld.services.bootstrap.WeldJpaInjectionServices.registerPersistenceUnitInjectionPoint(WeldJpaInjectionServices.java:90)
at org.jboss.weld.injection.ResourceInjectionFactory$PersistenceUnitResourceInjectionProcessor.getResourceReferenceFactory(ResourceInjectionFactory.java:279)
at org.jboss.weld.injection.ResourceInjectionFactory$PersistenceUnitResourceInjectionProcessor.getResourceReferenceFactory(ResourceInjectionFactory.java:267)
at org.jboss.weld.injection.ResourceInjectionFactory$ResourceInjectionProcessor.createFieldResourceInjection(ResourceInjectionFactory.java:207)
at org.jboss.weld.injection.ResourceInjectionFactory$ResourceInjectionProcessor.createResourceInjections(ResourceInjectionFactory.java:182)
at org.jboss.weld.injection.ResourceInjectionFactory.discoverType(ResourceInjectionFactory.java:405)
at org.jboss.weld.injection.ResourceInjectionFactory.getResourceInjections(ResourceInjectionFactory.java:92)
at org.jboss.weld.injection.producer.ResourceInjector.<init>(ResourceInjector.java:59)
at org.jboss.weld.injection.producer.ResourceInjector.of(ResourceInjector.java:49)
at org.jboss.weld.injection.producer.BeanInjectionTarget.<init>(BeanInjectionTarget.java:62)
at org.jboss.weld.injection.producer.BeanInjectionTarget.createDefault(BeanInjectionTarget.java:46)
at org.jboss.weld.manager.InjectionTargetFactoryImpl.chooseInjectionTarget(InjectionTargetFactoryImpl.java:128)
at org.jboss.weld.manager.InjectionTargetFactoryImpl.createInjectionTarget(InjectionTargetFactoryImpl.java:87)
at org.jboss.weld.bean.ManagedBean.<init>(ManagedBean.java:91)
at org.jboss.weld.bean.ManagedBean.of(ManagedBean.java:71)
at org.jboss.weld.bootstrap.AbstractBeanDeployer.createManagedBean(AbstractBeanDeployer.java:264)
at org.jboss.weld.bootstrap.BeanDeployer.createClassBean(BeanDeployer.java:228)
at org.jboss.weld.bootstrap.ConcurrentBeanDeployer$2.doWork(ConcurrentBeanDeployer.java:78)
at org.jboss.weld.bootstrap.ConcurrentBeanDeployer$2.doWork(ConcurrentBeanDeployer.java:75)
at org.jboss.weld.executor.IterativeWorkerTaskFactory$1.call(IterativeWorkerTaskFactory.java:60)
at org.jboss.weld.executor.IterativeWorkerTaskFactory$1.call(IterativeWorkerTaskFactory.java:53)
at java.util.concurrent.FutureTask.run(FutureTask.java:266) [rt.jar:1.8.0_25]
... 3 more
尝试使用该持久性单元的CDI Bean注入由原始
EntityManager产生的App-model.jar：@Named("test")
public class Test {
@Inject
@MyModelDB // Qualifier
private EntityManager em = null;
// A simple test of the datamodel...
public Long numberOfProjects() {
if (this.em != null) {
return ((BigDecimal) this.em.createNativeQuery("select count(*) from e_bo_projects").getSingleResult()).longValue();
}
return -1L;
}
}
我怎么解决这个问题？
最佳答案
我现在已经成功部署了两个EAR。感谢您对我的原始问题的评论。如果persistence.xml不包含JNDI绑定，则我最初的方法是使用2 EAR（包括相同的数据模型JAR）。谢谢@弗兰克！提到的jboss-deployment-structure.xml不再引用我的另一个EAR。
所以现在我的部署看起来像这样：
App-ear.ear
|_App-model.jar
|_App-ejb.jar
|_App-web.war
Second-ear.ear
|_App-model.jar
|_Second-web.war
这对两个应用程序都适用，并且在两种情况下我都已成功访问数据库。
关于java - 如何在JBoss“Wildfly”中的2 EAR之间共享JPA数据模型，我们在Stack Overflow上找到一个类似的问题：https://stackoverflow.com/questions/32089161/