personoperate.java

一款仿msdn聊天程序,用java编写,很好用!

package org.lxh.hibernate.demo03.oper;

import java.util.Iterator;
import java.util.List;
import java.util.Map;
import java.util.Set;

import org.hibernate.Query;
import org.hibernate.Session;
import org.hibernate.cfg.Configuration;
import org.lxh.hibernate.demo03.pojo.Person;

public class PersonOperate {
	private Session session;

	public PersonOperate() {
		this.session = new Configuration().configure().buildSessionFactory()
				.openSession();
	}

	public void insert(Person per) {
		this.session.save(per);
		this.session.beginTransaction().commit();
	}

	public Person queryById(int id) {
		Person per = null;
		String hql = "FROM Person AS p where p.id=?";
		Query q = this.session.createQuery(hql);
		q.setInteger(0, id);
		List all = q.list();
		if (all.size() > 0) {
			per = (Person) all.get(0);
		}
		return per;
	}
	public void delete(int id)
	{
		String hql = "DELETE FROM Person WHERE id=?" ;
		Query q = this.session.createQuery(hql) ;
		q.setInteger(0, id) ;
		q.executeUpdate() ;
		this.session.beginTransaction().commit() ;
	}

	/**
	 * @param args
	 */
	public static void main(String[] args) {
		PersonOperate po = new PersonOperate();
		// Person p = new Person();
		// p.setName("LiXingHua");
		// p.setPhone(new HashMap());
		// p.getPhone().put("zhangsan", "123456)");
		// p.getPhone().put("lisi", "234567");
		// p.getPhone().put("mldn", "01051283346");
		// po.insert(p);
//		Person p = po.queryById(1);
//		System.out.println(p.getName());
//		Set s = p.getPhone().entrySet();
//		Iterator iter = s.iterator();
//		while (iter.hasNext()) {
//			Map.Entry me = (Map.Entry) iter.next();
//			System.out.println(me.getKey() + " --> " + me.getValue()); 
//		}
		po.delete(1) ;
	}
}