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()); }}?
