为什么在 TomEE 1.7 和 EclipseLink 2.4.2 下实体没有持久化到数据库中？

Question

因为我已经使用 JPA 2.1 和 eclipselink 2.5.1 在该配置中一切正常。但由于某些要求，我使用 eclipselink 2.4.2 来到了 JPA 2.0，现在我正在努力将实体持久保存到数据库中。因为我运行我的应用程序在注册用户时数据被存储在某个地方并且可以正常检索。但它没有被保存到数据库中（MySql）。即使我无法弄清楚 JTA 和 RESOURCE LOCAL 的实际用法，有人能帮我吗这是我的代码

Create.java（注册方式）

public static int register(String first, String last, String email,
            String date, String phone, String address, String pin, Login login) {
        try {
            System.out.println("registering persisting the entity");
            EntityManagerFactory emf = Persistence
                    .createEntityManagerFactory("FirstEE");

            EntityManager manager = emf.createEntityManager();

            manager.getTransaction().begin();
            //
            // Query query = manager
            // .createQuery("select l from Truck l");

            Login log = login;

            System.out.println(log.getUsername() + "username"
                    + log.getPassword() + "password");

            User reg = new User();
            reg.setLogin(log);
            reg.setDate(date);
            reg.setEmail(email);
            reg.setFirst(first);
            reg.setLast(last);
            reg.setPhone(phone);
            reg.setAddress(address);
            reg.setPin(pin);
            manager.flush();
            manager.persist(reg);

            manager.getTransaction().commit();

            manager.close();
            emf.close();
            // FacesContext.getCurrentInstance().addMessage("reg:result",
            // new FacesMessage(FacesMessage.SEVERITY_ERROR, "Error Message",
            // "Registered Successfully"));
            FacesContext facesContext = FacesContext.getCurrentInstance();
            FacesMessage facesMessage = new FacesMessage(
                    "Registered Successfully");
            facesContext.addMessage(null, facesMessage);
            System.out.println("after message global");
            return 1;
        } catch (Exception e) {
            System.out.println("hai this is exception caught:" + e);
            System.out.println("hai" + e.getMessage());
            FacesContext.getCurrentInstance().addMessage(
                    "reg:result",
                    new FacesMessage("Something went wrong",
                            "\tSomething went wrong\t"));
            // FacesContext facesContext = FacesContext.getCurrentInstance();
            // FacesMessage facesMessage = new
            // FacesMessage("Something went wrong");
            // facesContext.addMessage(null, facesMessage);

        }
        return 0;

    }

persistence.xml

<?xml version="1.0" encoding="UTF-8"?>
<persistence version="2.0"
    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_2_0.xsd">
    <persistence-unit name="FirstEE" transaction-type="RESOURCE_LOCAL">
<!--        <provider>org.eclipse.persistence.jpa.PersistenceProvider</provider> -->
<!--         <non-jta-data-source>FirstEE</non-jta-data-source> -->
<!--        <exclude-unlisted-classes>false</exclude-unlisted-classes> -->
        <class>com.jason.Entity.User</class>
        <class>com.jason.ManagedBean.Login</class>

        <properties>
            <property name="javax.persistence.jdbc.url" value="jdbc:mysql://localhost:3306/yash" />
            <property name="javax.persistence.jdbc.user" value="root" />
            <property name="javax.persistence.jdbc.password" value="root" />
            <property name="javax.persistence.jdbc.driver" value="com.mysql.jdbc.Driver" />
            <property name="eclipselink.logging.level" value="FINEST" />
            <property name="eclipselink.ddl-generation" value="create-tables" />
        </properties>


    </persistence-unit>
</persistence>

错误日志：

<openjpa-2.4.0-r422266:1674604 nonfatal user error> org.apache.openjpa.persistence.ArgumentException: This configuration disallows runtime optimization, but the following listed types were not enhanced at build time or at class load time with a javaagent: "
com.jason.Entity.User
com.jason.ManagedBean.Login".
    at org.apache.openjpa.enhance.ManagedClassSubclasser.prepareUnenhancedClasses(ManagedClassSubclasser.java:115)
    at org.apache.openjpa.kernel.AbstractBrokerFactory.loadPersistentTypes(AbstractBrokerFactory.java:311)
    at org.apache.openjpa.kernel.AbstractBrokerFactory.initializeBroker(AbstractBrokerFactory.java:235)
    at org.apache.openjpa.kernel.AbstractBrokerFactory.newBroker(AbstractBrokerFactory.java:211)
    at org.apache.openjpa.kernel.DelegatingBrokerFactory.newBroker(DelegatingBrokerFactory.java:154)
    at org.apache.openjpa.persistence.EntityManagerFactoryImpl.createEntityManager(EntityManagerFactoryImpl.java:226)
    at org.apache.openjpa.persistence.EntityManagerFactoryImpl.createEntityManager(EntityManagerFactoryImpl.java:153)
    at org.apache.openjpa.persistence.EntityManagerFactoryImpl.createEntityManager(EntityManagerFactoryImpl.java:59)
    at com.jason.service.GetUser.get(GetUser.java:45)
    at com.jason.ManagedBean.Register.getAllUser(Register.java:199)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at javax.el.BeanELResolver.invoke(BeanELResolver.java:183)
    at javax.el.CompositeELResolver.invoke(CompositeELResolver.java:161)
    at org.apache.el.parser.AstValue.getValue(AstValue.java:173)
    at org.apache.el.parser.AstEmpty.getValue(AstEmpty.java:46)
    at org.apache.el.ValueExpressionImpl.getValue(ValueExpressionImpl.java:184)
    at org.apache.webbeans.el22.WrappedValueExpression.getValue(WrappedValueExpression.java:70)
    at com.sun.faces.facelets.el.TagValueExpression.getValue(TagValueExpression.java:109)
    at javax.faces.component.ComponentStateHelper.eval(ComponentStateHelper.java:194)
    at javax.faces.component.UIComponentBase.isRendered(UIComponentBase.java:462)
    at javax.faces.component.UIComponent.encodeAll(UIComponent.java:1850)
    at javax.faces.render.Renderer.encodeChildren(Renderer.java:176)
    at javax.faces.component.UIComponentBase.encodeChildren(UIComponentBase.java:894)
    at javax.faces.component.UIComponent.encodeAll(UIComponent.java:1856)
    at javax.faces.component.UIComponent.encodeAll(UIComponent.java:1859)
    at javax.faces.component.UIComponent.encodeAll(UIComponent.java:1859)
    at com.sun.faces.application.view.FaceletViewHandlingStrategy.renderView(FaceletViewHandlingStrategy.java:443)
    at com.sun.faces.application.view.MultiViewHandler.renderView(MultiViewHandler.java:131)
    at javax.faces.application.ViewHandlerWrapper.renderView(ViewHandlerWrapper.java:337)
    at javax.faces.application.ViewHandlerWrapper.renderView(ViewHandlerWrapper.java:337)
    at org.apache.myfaces.tomahawk.application.ResourceViewHandlerWrapper.renderView(ResourceViewHandlerWrapper.java:169)
    at javax.faces.application.ViewHandlerWrapper.renderView(ViewHandlerWrapper.java:337)
    at com.sun.faces.lifecycle.RenderResponsePhase.execute(RenderResponsePhase.java:120)
    at com.sun.faces.lifecycle.Phase.doPhase(Phase.java:101)
    at com.sun.faces.lifecycle.LifecycleImpl.render(LifecycleImpl.java:219)
    at javax.faces.webapp.FacesServlet.service(FacesServlet.java:647)
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:303)
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)
    at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)
    at com.jason.Filter.Adminfilter.doFilter(Adminfilter.java:62)
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)
    at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:220)
    at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:122)
    at org.apache.tomee.catalina.OpenEJBValve.invoke(OpenEJBValve.java:44)
    at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:505)
    at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:170)
    at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:103)
    at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:957)
    at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:116)
    at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:423)
    at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1079)
    at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:620)
    at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:318)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
    at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
    at java.lang.Thread.run(Unknown Source)

即使我重新启动 eclipse IDE 值仍然存在。我感到很困惑。这里是否存在任何配置问题？

Answer 1

你有没有试过在坚持后刷新em？

Answer 2

您确定使用的是 eclipselink 库吗？也许您的服务器有自己的 openjpa 库，而您没有覆盖它们。如果您在网上寻找类似的问题（例如 this, or this），遇到这些问题的人正在使用 openjpa。

Answer 3

我明白了，我想让其他人知道确切的问题。由于我使用的是 TomEE，它是 JavaEE 服务器，它使用 openJPA 作为默认持久性提供程序。

如果您想使用其他持久性提供程序，我们需要在 persistence 中明确指定 <provider>your provider</provider>。xml
TomEE 使用 JTA 作为默认事务管理器。如果要使用 RESOURCE_LOCAL 则需要指定 transaction-type="RESOURCE_LOCAL" 并且还需要指定应用程序要使用的 <non-jta-data-source>。否则服务器将使用 JTA，即使您将事务类型指定为 RESOURCE_LOCAL
要配置 JNDI 数据源，请参考此 link。

现在这些值正在存储到本地数据库中...请记住，您需要将所有库都放入您的 lib 文件夹中，还需要将 jdbc 连接器放入服务器的 lib 文件夹中，以便它可以运行与 JNDI 数据源配合得很好。

为什么在 TomEE 1.7 和 EclipseLink 2.4.2 下实体没有持久化到数据库中？

Why is an Entity not persisted into database under TomEE 1.7 and EclipseLink 2.4.2?

jpa

eclipselink

jpa-2.0

apache-tomee