Hibernate 无法持久化数据：JTA EntityManager无法使用getTransaction（）

在尝试持久化实体时，我得到以下异常

public class MyClass {

    EntityManagerFactory emFactory;
    EntityManager entityManager;

    public MyClass(){
        emFactory = Persistence.createEntityManagerFactory("persistenceUnit");
        entityManager = emFactory.createEntityManager();
    }

    public void getData() {     
        try {
            TrigData trigData = new TrigData();
            trigData.setKey("abc");     
            entityManager.getTransaction().begin();
            entityManager.persist(trigData);
            entityManager.getTransaction().commit();
        } catch (Exception e) {
            e.printStackTrace();
        }

    }


19:31:51,508 ERROR [stderr] (default task-6) java.lang.IllegalStateException: A JTA EntityManager cannot use getTransaction()
19:31:51,508 ERROR [stderr] (default task-6)    at org.hibernate.jpa.spi.AbstractEntityManagerImpl.getTransaction(AbstractEntityManagerImpl.java:1368)
19:31:51,509 ERROR [stderr] (default task-6)    at com.xyz.services.MyClass.getData(MyClass.java:42)
19:31:51,509 ERROR [stderr] (default task-6)    at com.xyz.services.MyClass$Proxy$_$$_WeldClientProxy.getData(Unknown Source)
19:31:51,509 ERROR [stderr] (default task-6)    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
19:31:51,510 ERROR [stderr] (default task-6)    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
19:31:51,510 ERROR [stderr] (default task-6)    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
19:31:51,510 ERROR [stderr] (default task-6)    at java.lang.reflect.Method.invoke(Method.java:606)
19:31:51,510 ERROR [stderr] (default task-6)    at com.sun.jersey.spi.container.JavaMethodInvokerFactory$1.invoke(JavaMethodInvokerFactory.java:60)
19:31:51,511 ERROR [stderr] (default task-6)    at com.sun.jersey.server.impl.model.method.dispatch.AbstractResourceMethodDispatchProvider$VoidOutInvoker._dispatch(AbstractResourceMethodDispatchProvider.java:167)
19:31:51,511 ERROR [stderr] (default task-6)    at com.sun.jersey.server.impl.model.method.dispatch.ResourceJavaMethodDispatcher.dispatch(ResourceJavaMethodDispatcher.java:75)
19:31:51,511 ERROR [stderr] (default task-6)    at com.sun.jersey.server.impl.uri.rules.HttpMethodRule.accept(HttpMethodRule.java:302)
19:31:51,512 ERROR [stderr] (default task-6)    at com.sun.jersey.server.impl.uri.rules.RightHandPathRule.accept(RightHandPathRule.java:147)
19:31:51,512 ERROR [stderr] (default task-6)    at com.sun.jersey.server.impl.uri.rules.ResourceClassRule.accept(ResourceClassRule.java:108)
19:31:51,513 ERROR [stderr] (default task-6)    at com.sun.jersey.server.impl.uri.rules.RightHandPathRule.accept(RightHandPathRule.java:147)

persistence.xml：

<persistence 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_2_0.xsd"
             version="2.0">

    <persistence-unit name="persistenceUnit" > 
        <provider>org.hibernate.ejb.HibernatePersistence</provider>
        <jta-data-source>java:jboss/datasources/PostgresDS</jta-data-source>    
        <class>com.xyz.TrigData</class>

        <properties>
            <property name="hibernate.transaction.jta.platform" value="org.hibernate.service.jta.platform.internal.JBossStandAloneJtaPlatform" />
            <property name="hibernate.dialect" value="org.hibernate.dialect.PostgreSQLDialect" />
            <property name="hibernate.hbm2ddl.auto" value="update" />
        </properties>
    </persistence-unit>

</persistence>

org.hibernate.ejb.HibernatePersistence
java:jboss/datasources/postgresd
com.xyz.TrigData

如果您试图在Wildfly上部署，请使用

@PersistenceContext

注释获取您的

EntityManager

。所有的Wildfly QuickStart都有一个实用程序类，

@生成要注入到其他bean中的实体管理器：

public class Resources {
    @Produces
    @PersistenceContext
    private EntityManager em;

    @Produces
    public Logger produceLog(InjectionPoint injectionPoint) {
        return Logger.getLogger(injectionPoint.getMember().getDeclaringClass().getName());
    }

    @Produces
    @RequestScoped
    public FacesContext produceFacesContext() {
        return FacesContext.getCurrentInstance();
    }
}

它的使用方式如下：

@Stateless
public class Service {

    @Inject
    private EntityManager em;

有帮助的交叉引用：
Jboss在该设置中应该负责处理事务。详细信息取决于您的设置。EJB？@ep因为这是一个JTA管理的，所以我们不能使用
getTransaction（）
方法。尽管我从未尝试过，但我的最佳猜测是，我认为正确的方法是从JNDI查找中获取
UserTransaction
，并使用提交/回滚。你是在JBoss服务器上运行这段代码，还是它是StanLone应用程序？@mh-dev:不是EJB@MadhusudanaReddySunnapu：它部署在WildFly 9上server@ep然后，您可能希望尝试使用inject或对
UserTransaction
执行JNDI查找，并使用它来控制事务，而不是
getTransaction（）
。