Hibernate 实现批量添加数据

Hibernate 实现批量添加数据

1.Hibernate_016_BatchAddData程序目录结构：

2.lib目录下所引入的jar包：

3.MedicineDao.java源代码：

package com.xqh.dao;

import java.util.List;

import org.hibernate.Session;

import com.xqh.model.Medicine;
import com.xqh.util.HibernateUtil;

/**
 * 药品数据库操作类
 * 
 */
public class MedicineDao {
	/**
	 * 批量保存药品
	 * 
	 * @param ms
	 *            List集合
	 */
	public void saveMedicines(List ms) {
		Session session = null;
		if (ms != null && ms.size() > 0) {
			try {
				session = HibernateUtil.getSession(); // 获取Session
				session.beginTransaction(); // 开启事物
				Medicine medicine = null; // 创建药品对象
				// 循环获取药品对象
				for (int i = 0; i < ms.size(); i++) {
					medicine = (Medicine) ms.get(i); // 获取药品
					session.save(medicine); // 保存药品对象
					// 批插入的对象立即写入数据库并释放内存
					if (i % 10 == 0) {
						session.flush();
						session.clear();
					}
				}
				session.getTransaction().commit(); // 提交事物
			} catch (Exception e) {
				e.printStackTrace(); // 打印错误信息
				session.getTransaction().rollback(); // 出错将回滚事物
			} finally {
				HibernateUtil.closeSession(session); // 关闭Session
			}
		}
	}
}

4.Medicine.java源代码：

package com.xqh.model;
/**
 * 药品持久化类
 */
public class Medicine {
	private Integer id;				//id号
	private String name;			//药品名称
	private double price;			//价格
	private String factoryAdd;		//出厂地址
	public Integer getId() {
		return id;
	}
	public void setId(Integer id) {
		this.id = id;
	}
	public String getName() {
		return name;
	}
	public void setName(String name) {
		this.name = name;
	}
	public double getPrice() {
		return price;
	}
	public void setPrice(double price) {
		this.price = price;
	}
	public String getFactoryAdd() {
		return factoryAdd;
	}
	public void setFactoryAdd(String factoryAdd) {
		this.factoryAdd = factoryAdd;
	}
}

5.Medicine.hbm.xml源代码：

6.SaveMedicine.java源代码：

package com.xqh.servlet;

import java.io.IOException;
import java.util.ArrayList;
import java.util.List;

import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import com.xqh.dao.MedicineDao;
import com.xqh.model.Medicine;

public class SaveMedicine extends HttpServlet {
	private static final long serialVersionUID = 3743334039515411666L;
	
	public void doPost(HttpServletRequest request, HttpServletResponse response)
			throws ServletException, IOException {
		// 药品名称
		String names[] = request.getParameterValues("name");
		// 价格
		String prices[] = request.getParameterValues("price");
		// 出厂地址
		String adds[] = request.getParameterValues("factoryAdd");
		// 有效性判断
		if(names != null && prices != null && adds != null){
			if(names.length == prices.length && names.length == adds.length){
				// 实例化一个List集合
				List ms = new ArrayList();
				Medicine m = null;	// 药品对象
				// 依次实例化药品对象并添加到集合中
				for (int i = 0; i < names.length; i++) {
					m = new Medicine();	// 实例化药品
					// 对属性赋值
					m.setName(names[i]);
					m.setPrice(Double.parseDouble(prices[i]));
					m.setFactoryAdd(adds[i]);
					ms.add(m);	// 添加到集合中
				}
				// 实例化MedicineDao对象
				MedicineDao dao = new MedicineDao();
				dao.saveMedicines(ms);	// 批量保存药品
				request.setAttribute("info", "药品信息保存成功！！！");
			}
		}
		// 转发到result.jsp页面
		request.getRequestDispatcher("result.jsp").forward(request, response);
	}
}

7.CharacterEncodingFilter.java源代码：

/*
 * To change this template, choose Tools | Templates
 * and open the template in the editor.
 */
package com.xqh.util;

import java.io.IOException;

import javax.servlet.Filter;
import javax.servlet.FilterChain;
import javax.servlet.FilterConfig;
import javax.servlet.ServletException;
import javax.servlet.ServletRequest;
import javax.servlet.ServletResponse;

/**
 * 字符编码过滤器
 */
public class CharacterEncodingFilter implements Filter{

    protected String encoding = null;
    protected FilterConfig filterConfig = null;

    public void init(FilterConfig filterConfig) throws ServletException {
        this.filterConfig = filterConfig;
        this.encoding = filterConfig.getInitParameter("encoding");
    }

    public void doFilter(ServletRequest request, ServletResponse response, FilterChain chain) throws IOException, ServletException {
        if (encoding != null) {
            request.setCharacterEncoding(encoding);
            response.setContentType("text/html; charset="+encoding);
        }
        chain.doFilter(request, response);
    }

    public void destroy() {
        this.encoding = null;
        this.filterConfig = null;
    }
}

8.HibernateUtil.java源代码：

package com.xqh.util;

import org.hibernate.HibernateException;
import org.hibernate.Session;
import org.hibernate.SessionFactory;
import org.hibernate.cfg.Configuration;

/**
 * Hibernate初始化类，用于获取Session、SessionFactory 及关闭Session
 */
public class HibernateUtil {
	// SessionFactory对象
	private static SessionFactory factory = null;
	// 静态块
	static {
		try {
			// 加载Hibernate配置文件
			Configuration cfg = new Configuration().configure();
			// 实例化SessionFactory
			factory = cfg.buildSessionFactory();
		} catch (HibernateException e) {
			e.printStackTrace();
		}
	}
	/**
	 * 获取Session对象
	 * @return Session对象
	 */
	public static Session getSession() {
		//如果SessionFacroty不为空，则开启Session
		Session	session = (factory != null) ? factory.openSession() : null;
		return session;
	}
	/**
	 * 获取SessionFactory对象
	 * @return SessionFactory对象
	 */
	public static SessionFactory getSessionFactory() {
		return factory;
	}
	/**
	 * 关闭Session
	 * @param session对象
	 */
	public static void closeSession(Session session) {
		if (session != null) {
			if (session.isOpen()) {
				session.close(); // 关闭Session
			}
		}
	}
}

9.hibernate.cfg.xml源代码：

    
    	
        org.hibernate.dialect.MySQLDialect
        
        jdbc:mysql://localhost:3306/learn
        
        root
        
        1120
        
        com.mysql.jdbc.Driver
        
        true
        
        update
        
        
    

10.log4j.properties源代码：

### direct log messages to stdout ###
log4j.appender.stdout=org.apache.log4j.ConsoleAppender
log4j.appender.stdout.Target=System.out
log4j.appender.stdout.layout=org.apache.log4j.PatternLayout
log4j.appender.stdout.layout.ConversionPattern=%d{ABSOLUTE} %5p %c{1}:%L - %m%n

### direct messages to file hibernate.log ###
#log4j.appender.file=org.apache.log4j.FileAppender
#log4j.appender.file.File=hibernate.log
#log4j.appender.file.layout=org.apache.log4j.PatternLayout
#log4j.appender.file.layout.ConversionPattern=%d{ABSOLUTE} %5p %c{1}:%L - %m%n

### set log levels - for more verbose logging change 'info' to 'debug' ###

log4j.rootLogger=warn, stdout

#log4j.logger.org.hibernate=info
#log4j.logger.org.hibernate=debug

### log HQL query parser activity
#log4j.logger.org.hibernate.hql.ast.AST=debug

### log just the SQL
#log4j.logger.org.hibernate.SQL=debug

### log JDBC bind parameters ###
#log4j.logger.org.hibernate.type=info
#log4j.logger.org.hibernate.type=debug

### log schema export/update ###
#log4j.logger.org.hibernate.tool.hbm2ddl=debug

### log HQL parse trees
#log4j.logger.org.hibernate.hql=debug

### log cache activity ###
#log4j.logger.org.hibernate.cache=debug

### log transaction activity
#log4j.logger.org.hibernate.transaction=debug

### log JDBC resource acquisition
#log4j.logger.org.hibernate.jdbc=debug

### enable the following line if you want to track down connection ###
### leakages when using DriverManagerConnectionProvider ###
#log4j.logger.org.hibernate.connection.DriverManagerConnectionProvider=trace

11.index.jsp源代码：

<%@ page language="java" contentType="text/html" pageEncoding="GBK"%>


	
		
		
		
	

	
		

			

				

					

						

						

							批量添加药品信息
						
					
				
				

					

						

					
				
				

					

						
						
						
					
				
			
		
		

			

				

					

						名称：
					
					

						
					
					

						单价：
					
					

						
					
					

						厂址：
					
					

						
					
				
			
		
	

12.result.jsp源代码：

<%@ page language="java" contentType="text/html" pageEncoding="GBK"%>


  
    
    
  
  
  
    

    	
    		${info}
    	
    	




    	返回
    
  

13.数据表tb_medicine_batch结构：

14.程序运行结果截图：