我的数据存在问题。我没看到问题出在哪里。你能救我吗?
Tomcat中的错误:
javax.persistence.PersistenceException: No Persistence provider for EntityManager named miageTP13
javax.persistence.Persistence.createEntityManagerFactory(Persistence.java:89)
javax.persistence.Persistence.createEntityManagerFactory(Persistence.java:60)
dao.impl.TeamDAOImpl.getEntityManager(TeamDAOImpl.java:20)
dao.impl.TeamDAOImpl.insert(TeamDAOImpl.java:36)
controller.TeamController.createTeam(TeamController.java:119)
这是如何引起的?如何解决?