Hibernate用于持久化的一个框架，但是在实际项目中进行查询有很多的地方是需要进行一些封装的，比如他的configure以及session不可能有一个操作数据库调用dao层就创建一个，而且在获取数据的时候有很多是相同的操作，那么这些都需要进行一些封装，以下为自个进行的一个简易封装，在前面笔记的基础上做的一个简易项目，创建HibernateUtils工具类，封装代码如下

package com.HibernateUtils;import java.util.List;import org.hibernate.Criteria;import org.hibernate.Query;import org.hibernate.Session;import org.hibernate.SessionFactory;import org.hibernate.Transaction;import org.hibernate.cfg.Configuration;import org.hibernate.criterion.Restrictions;import com.whong.cust_customer;public class HibernateUtils {	private static Session session;	private static SessionFactory sessionFactory;	private static Transaction transaction;	static {		Configuration configuration = new Configuration().configure();		sessionFactory = configuration.buildSessionFactory();	}	static {		session = sessionFactory.openSession();	}	static {		transaction = session.beginTransaction();	}	// 插入数据	public void insertData(String name,String phone) {		cust_customer cust_customer = new cust_customer();		cust_customer.setCust_name(name);		cust_customer.setCust_phone(phone);		session.save(cust_customer);		transaction.commit();		session.close();	}	// 查询所有的数据	public void getAllData() {		Configuration configuration = new Configuration().configure();		SessionFactory sessionFactory = configuration.buildSessionFactory();		Session session = sessionFactory.openSession();		Query query = session.createQuery("from cust_customer");		List
    
     list = query.list();		this.PrintListArray(list);	}	// 根据条件查询(通过序列号1 2 3 等数字来进行查询)	public void getDatawithName(String name) {		Query query = session.createQuery("from cust_customer where cust_name = ?");		query.setString(0, name);		List
     
      list = query.list();		this.PrintListArray(list);	}		// 条件查询(根据设定属性名称来进行查询)	public void getDataWithNameAndPhone(String cust_name,String cust_phone) {		Query query = session.createQuery("from cust_customer where cust_name = :cust_name and cust_phone = :cust_phone");		query.setString("cust_name", cust_name);		query.setString("cust_phone", cust_phone);		List
      
       list = query.list();		this.PrintListArray(list);	}		// 分页查询	public void getDataSeparater(Integer minipage,Integer maxpage	) {		Query query = session.createQuery("from cust_customer");		query.setFirstResult(minipage);		query.setMaxResults(maxpage);		List
       
        list = query.list();		this.PrintListArray(list);	}		// criterita查询所有数据	public void getDataCriterita() {		Criteria criteria = session.createCriteria(cust_customer.class);		List
        
         list = criteria.list();		this.PrintListArray(list);	}	// criterita条件查询	public void getDataCriteritaWithName(String cust_name) {		Criteria criteria = session.createCriteria(cust_customer.class);		criteria.add(Restrictions.eq("cust_name", cust_name));		List
         
          list = criteria.list(); this.PrintListArray(list); } // criterita条件查询 public void getDataCriteritaWithNameAndMobile(String name,String mobile) { Criteria criteria = session.createCriteria(cust_customer.class); criteria.add(Restrictions.eq("cust_name", name)); criteria.add(Restrictions.eq("cust_mobile", mobile)); List
          
           list = criteria.list(); this.PrintListArray(list); } // criterita分页查询 public void getDataMinAndMax(Integer min,Integer max) { Criteria criteria = session.createCriteria(cust_customer.class); criteria.setFirstResult(min); criteria.setMaxResults(max); List
           
            list = criteria.list(); this.PrintListArray(list); } // 打印所有的查询结果 public void PrintListArray(List
            
             list) { for (int i = 0; i < list.size(); i++) { cust_customer cust_customer = list.get(i); System.out.println(cust_customer.getCust_id()+cust_customer.getCust_name()+cust_customer.getCust_mobile()); } }}复制代码
            
           
          
         
        
       
      
     
    

在main中调用代码如下

package com.testPackage;import org.hibernate.Query;import org.hibernate.Session;import org.hibernate.SessionFactory;import org.hibernate.Transaction;import org.hibernate.cfg.Configuration;import org.hibernate.mapping.List;import com.HibernateUtils.HibernateUtils;import com.whong.cust_customer;public class testHibernate {	public static void main(String[] args) {		// TODO Auto-generated method stub		HibernateUtils hibernateUtils = new HibernateUtils();//		hibernateUtils.insertData("伟鸿", "185*******9");//		hibernateUtils.getAllData();//		hibernateUtils.getDatawithName("weihong");//		hibernateUtils.getDataWithNameAndPhone("伟鸿", "185******69");//		hibernateUtils.getDataSeparater(3, 10);//		hibernateUtils.getDataCriterita();//		hibernateUtils.getDataCriteritaWithName("weihong");//		hibernateUtils.getDataCriteritaWithNameAndMobile("伟鸿", "18******69");		hibernateUtils.getDataMinAndMax(3, 10);	}}复制代码