因为我已经使用eclipselink 2.5.1工作了JPA 2.1，所以该配置中的一切都很好。但由于一些要求，我已经使用eclipselink 2.4.2来到JPA 2.0，现在我正在努力将实体持久化到数据库中。因为我在注册用户时运行我的应用程序，数据被存储在一些地方并且检索得很好。但它没有持久存入数据库（MySql）。即使我无法弄清楚 JTA 和 RESOURCE LOCAL 的实际使用情况，有人可以帮助我这里是我的代码
Create.java（注册方法）
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？
答案 0 :(得分：1)
我明白我希望别人知道确切的问题。因为我使用的是TomEE，它是JavaEE服务器，所以它将openJPA作为默认的持久性提供程序。
如果您想使用其他持久性提供程序，我们需要在持久性.xml
<provider>your provider</provider>
TomEE使用 JTA 作为默认的事务管理器。如果要使用 RESOURCE_LOCAL ，则需要指定transaction-type="RESOURCE_LOCAL"，还需要指定应用程序使用的<non-jta-data-source>。即使您将交易类型指定为 RESOURCE_LOCAL
要配置JNDI数据源，请参阅此link。
现在这些值已存储到本地数据库中......请记住，您需要将所有库都放入lib文件夹，同时将jdbc连接器放入服务器的lib文件夹中，以便它可以很好地与JNDI数据源配合使用。
答案 1 :(得分：0)
你有没有试过在持续存在后冲洗它？
答案 2 :(得分：0)