首先要导入所需要的jar包和配置文件分别为hibernate-release-5.2.10.Final包中的required文件夹中的所有jar包和optional文件夹中ehcache文件夹的所有jar包和project文件夹中etc文件夹中的ehcache.xml配置文件和hibernate.cfg.xml配置文件结构图如下:
User.java代码如下：
package demo; public class User { private int id; private String userName; private String pwd; public int getId() { return id; } public void setId(int id) { this.id = id; } public String getUserName() { return userName; } public void setUserName(String userName) { this.userName = userName; } public String getPwd() { return pwd; } public void setPwd(String pwd) { this.pwd = pwd; } }
相对应的映射文件User.hbm.xml文件如下:
ehcache.xml配置如下:
hibernate.cfg.xml配置如下:
TestUtils.java代码如下:
package demo; import org.hibernate.Session; import org.hibernate.SessionFactory; import org.hibernate.cfg.Configuration; import org.junit.Test; public class TestUtils { private static SessionFactory sf; static { sf = new Configuration().configure().addClass(User.class).buildSessionFactory(); } // 先运行此测试因为数据库没有数据 @Test public void testSave() { // TODO Auto-generated method stub Session session = sf.openSession(); session.beginTransaction(); User user = new User(); user.setUserName("张三"); user.setPwd("12342342"); session.save(user); session.getTransaction().commit(); session.close(); } // 测试是否有开启二级缓存 @Test public void testGet() { // TODO Auto-generated method stub Session session = sf.openSession(); session.beginTransaction(); User user = session.get(User.class, 1); System.out.println(user); session.getTransaction().commit(); session.close(); Session session2 = sf.openSession(); session2.beginTransaction(); user = session2.get(User.class, 1); System.out.println(user); session2.getTransaction().commit(); session2.close(); } }
运行结果:
