JPA 教程 实例

实体类：

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?测试类：
package test.entityjpa;import javax.persistence.EntityManager;import javax.persistence.EntityManagerFactory;import javax.persistence.EntityTransaction;import javax.persistence.Persistence;public class TestCase {    public static void main(String[] args) {        // TODO Auto-generated method stub        EntityManagerFactory factory = Persistence.createEntityManagerFactory("jpaDemo");        EntityManager manager =  factory.createEntityManager();        EntityTransaction tran = manager.getTransaction();        tran.begin();        JesonTest ower = new JesonTest();        ower.setUserid(1);        ower.setPassword("exigen");        ower.setName("wpeng_8g");        manager.persist(ower);        tran.commit();        System.out.println(ower.getName());    }}
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