netbean创建了一个数据库应用程序,连接到了mysql的一个表,结果无法运行

[jintianhu2000]

netbean创建了一个数据库应用程序,连接到了mysql的一个表,项目创建现实成功,但成功时显示一大堆错误,无法运行,这是怎么回事?

错误提示:
2008-3-14 15:16:29 org.jdesktop.application.Application$1 run
严重: Application class desktopapplication1.DesktopApplication1 failed to launch
javax.persistence.PersistenceException: No Persistence provider for EntityManager named infoSystemPU: The following providers:
oracle.toplink.essentials.PersistenceProvider
oracle.toplink.essentials.ejb.cmp3.EntityManagerFactoryProvider
Returned null to createEntityManagerFactory.

Exception in thread "AWT-EventQueue-0" java.lang.Error: Application class desktopapplication1.DesktopApplication1 failed to launch
at org.jdesktop.application.Application$1.run(Application.java:177)

Caused by: javax.persistence.PersistenceException: No Persistence provider for EntityManager named infoSystemPU: The following providers:
oracle.toplink.essentials.PersistenceProvider
oracle.toplink.essentials.ejb.cmp3.EntityManagerFactoryProvider
Returned null to createEntityManagerFactory.

[forestking_xx]

: No Persistence provider for EntityManager named infoSystemPU:
我记得netbeans 开发数据库应用的时候要给jpa选择provider， 一般好像可以选hibernate或者toplink，你是不是没有选？
jpa只是接口，实现要靠provider 的。

[jintianhu2000]

LS能说的具体点吗?什么是JPA?怎么选择peovider?在哪选择?谢谢

[hehuimail]

同样的问题，请问如何解决，谢谢！

[seamhb]

我也是同样的问题 焦急中...