usermanagerimpl.java

ejb源代码

package com.bjsxt.ejb.id;

import javax.ejb.Local;
import javax.ejb.Remote;
import javax.ejb.Stateless;
import javax.persistence.EntityManager;
import javax.persistence.PersistenceContext;

@Stateless(name="UserManager")
@Remote
@Local
public class UserManagerImpl implements UserMananger {

	/**
	 * 注入实体管理器对象
	 */
	@PersistenceContext(unitName="test")
	private EntityManager em;
	
	public void addUser(User user) {
		
		//使用EntityManager的persist方法，将数据持久化到数据库
		em.persist(user);
		
		
		
		System.out.println("User对象已被保存，ID是："+user.getId());
	}

	public void addUser1(User1 user1) {
		em.persist(user1);
		System.out.println("User1对象已被保存，ID是："+user1.getId());
	}

	public void addUser2(User2 user2) {
		em.persist(user2);
		System.out.println("User2对象已被保存，ID是："+user2.getId());
	}

}