Hibernate的Java控制台程序Demo

package com.cks.hibernatetryout; import java.io.BufferedReader; import java.io.IOException; import java.io.InputStreamReader; import java.io.Reader; import java.sql.Date; import java.sql.Time; import java.util.List; import java.util.Random; import org.hibernate.Criteria; import org.hibernate.Session; import org.hibernate.SessionFactory; import org.hibernate.cfg.Configuration; import org.omg.PortableServer.LIFESPAN_POLICY_ID; import com.cks.hibernatetryout.entity.EntityDemo; public class Tester { @SuppressWarnings("deprecation") public static void main(String[] args) throws IOException { //读取配置文件 Configuration cfg = new Configuration().configure(); //建立SessionFactory,然后就可以访问mysql了 SessionFactory factory = cfg.buildSessionFactory(); Session session=null; System.out.println("输入In添加随机数据；\r\n输入Dl删除数据；\r\n输入Ud修改数据；\r\n输入Li列出当前所有数据；\r\n输入Ex退出程序。\r\n"); while (true) { BufferedReader reader = new BufferedReader(new InputStreamReader(System.in)); System.out.print("输入命令："); String command=reader.readLine(); Random rd=new Random(); switch (command.toUpperCase()) { case "IN": EntityDemo newEntity=new EntityDemo(); newEntity.setBoolDemo(rd.nextBoolean()); newEntity.setDateDemo(new Date(System.currentTimeMillis())); newEntity.setFloatDemo(rd.nextFloat()); newEntity.setIntDemo(rd.nextInt()); newEntity.setStringDemo(rd.toString()+"产生了"+rd.nextFloat()); newEntity.setTimeDemo(new Time(System.currentTimeMillis())); session=factory.openSession(); session.beginTransaction(); session.save(newEntity); session.getTransaction().commit(); session.close(); break; case "DL": System.out.print("输入要删的Id："); int idd=Integer.parseInt(reader.readLine()); session=factory.openSession(); session.beginTransaction(); session.delete(session.load(EntityDemo.class, idd)); session.getTransaction().commit(); session.close(); break; case "UD": System.out.print("输入要修改为随机数据的Id："); int idu=Integer.parseInt(reader.readLine()); session=factory.openSession(); session.beginTransaction(); EntityDemo record=(EntityDemo) session.load(EntityDemo.class, idu); record.setBoolDemo(rd.nextBoolean()); record.setDateDemo(new Date(System.currentTimeMillis())); record.setFloatDemo(rd.nextFloat()); record.setIntDemo(rd.nextInt()); record.setStringDemo(rd.toString()+"产生了"+rd.nextFloat()); record.setTimeDemo(new Time(System.currentTimeMillis())); session.getTransaction().commit(); session.close(); break; case "LI": session=factory.openSession(); List<EntityDemo> records=session.createCriteria(EntityDemo.class).list(); session.close(); for (EntityDemo rcd : records) { System.out.println(rcd.toString()); } break; case "EX": System.exit(0); break; default: break; } System.out.println(""); } } }