Question

我有以下设置：

EJB-JAR：

包含一些实体和DAO。
保存DAO中使用的EntityManager的persistence.xml。

试验WAR：

包含一个注入EJB-JAR的DAO之一的servlet（使用@Inject或@EJB）。

问题：

我目前正在将应用程序部署到Wildfly 8.x
当我使用在部署后启动的单例部署jar时，我可以按预期使用DAO。我从DB获得结果......
但是当我尝试使用依赖集设置到jar（在MANIFEST.MF或jboss-deployment-structure.xml中）时，我总是得到Weld无法将持久性单元注入DAO的错误bean，因为它找不到具有我指定名称的持久性单元：

JBAS016069：将持久性单元注入CDI托管bean时出错。无法在部署test.war中找到名为test的持久性单元

这是一个奇怪的错误，因为在战争中容器不应该需要persistence.xml文件，因为它位于加载dao类的ejb-jar中。

那么为什么容器会抱怨缺少持久性单元，尽管它存在于jar中？

注入EntityManager（ejb-jar）：

public class ShopDAO {
  @PersistenceContext(unitName="test")
  private EntityManager entityManager;
...

persistence.xml（ejb-jar）：

<?xml version="1.0" encoding="UTF-8"?>
<persistence version="1.0" xmlns="http://java.sun.com/xml/ns/persistence" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://java.sun.com/xml/ns/persistence http://java.sun.com/xml/ns/persistence/persistence_1_0.xsd">
  <persistence-unit name="test">
    <properties>
      <property name="hibernate.hbm2ddl.auto" value="validate" />
      <property name="hibernate.show_sql" value="true" />
      <property name="hibernate.format_sql" value="true" />
      <property name="hibernate.generate_statistics" value="false" />
      <property name="hibernate.use_sql_comments" value="false" />
      <property name="hibernate.bytecode.use_reflection_optimizer" value="false" />
      <property name="hibernate.connection.driver_class" value="oracle.jdbc.driver.OracleDriver"/>
      <property name="hibernate.connection.password" value="password"/>
      <property name="hibernate.connection.url" value="jdbc:oracle:thin:@dbms:1523:DEV11"/>
      <property name="hibernate.connection.username" value="testuser"/>
      <property name="hibernate.default_schema" value="TEST"/>
    </properties>
  </persistence-unit>
</persistence>

注射DAO（试战）：

@WebServlet("/status")
public class TestServlet extends HttpServlet {
  @Inject
  private ShopDAO shopDAO;

  protected void doGet(HttpServletRequest rq, HttpServletResponse rp) throws ServletException, IOException {
    //do something with the shop dao!
  }
}

错误日志：

    ERROR [fail] MSC000001: Failed to start service jboss.deployment.unit."test.war".WeldStartService: org.jboss.msc.service.StartException in service jboss.deployment.unit."test.war".WeldStartService: Failed to start service
    at org.jboss.msc.service.ServiceControllerImpl$StartTask.run(ServiceControllerImpl.java:1904)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
    at java.lang.Thread.run(Thread.java:745)
Caused by: java.lang.IllegalArgumentException: JBAS016069: Error injecting persistence unit into CDI managed bean. Can't find a persistence unit named test in deployment test.war
    at org.jboss.as.weld.services.bootstrap.WeldJpaInjectionServices.getScopedPUName(WeldJpaInjectionServices.java:110)
    at org.jboss.as.weld.services.bootstrap.WeldJpaInjectionServices.registerPersistenceContextInjectionPoint(WeldJpaInjectionServices.java:73)
    at org.jboss.weld.injection.ResourceInjectionFactory$PersistenceContextResourceInjectionProcessor.getResourceReferenceFactory(ResourceInjectionFactory.java:312)
    at org.jboss.weld.injection.ResourceInjectionFactory$PersistenceContextResourceInjectionProcessor.getResourceReferenceFactory(ResourceInjectionFactory.java:301)
    at org.jboss.weld.injection.ResourceInjectionFactory$ResourceInjectionProcessor.createFieldResourceInjection(ResourceInjectionFactory.java:206)
    at org.jboss.weld.injection.ResourceInjectionFactory$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:52)
    at org.jboss.weld.injection.producer.BeanInjectionTarget.initInjector(BeanInjectionTarget.java:55)
    at org.jboss.weld.injection.producer.BasicInjectionTarget.<init>(BasicInjectionTarget.java:68)
    at org.jboss.weld.injection.producer.BeanInjectionTarget.<init>(BeanInjectionTarget.java:49)
    at org.jboss.weld.manager.InjectionTargetFactoryImpl.chooseInjectionTarget(InjectionTargetFactoryImpl.java:126)
    at org.jboss.weld.manager.InjectionTargetFactoryImpl.createInjectionTarget(InjectionTargetFactoryImpl.java:88)
    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:248)
    at org.jboss.weld.bootstrap.ConcurrentBeanDeployer$2.doWork(ConcurrentBeanDeployer.java:74)
    at org.jboss.weld.bootstrap.ConcurrentBeanDeployer$2.doWork(ConcurrentBeanDeployer.java:72)
    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)
    ... 3 more

Answer 1

我刚刚将文件 persistence.xml 从“... \ src \ main \ java \ META-INF”移动到“... \ src \ main \ webapp \ META-INF”它起作用了。如果在classes文件夹中没有META-INF / persistence.xml文件，则war不起作用。

＆＃34; JBAS016069：将持久性单元注入CDI托管bean时出错。＆＃34;部署WAR时依赖于EJB-JAR

1 个答案: