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<Medicine> 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：

<?xml version="1.0"?>
<!DOCTYPE hibernate-mapping PUBLIC 
"-//Hibernate/Hibernate Mapping DTD 3.0//EN"
"http://hibernate.sourceforge.net/hibernate-mapping-3.0.dtd">
<hibernate-mapping>
<class name="com.xqh.model.Medicine" table="tb_medicine_batch">
<id name="id">
<generator class="native"/>
</id>
<property name="name" not-null="true" length="200" />
<property name="price" not-null="true"/>
<property name="factoryAdd" length="200"/>
</class>
</hibernate-mapping>

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<Medicine> ms = new ArrayList<Medicine>();
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
Sessionsession = (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：

<?xml version='1.0' encoding='UTF-8'?>
<!DOCTYPE hibernate-configuration PUBLIC
          "-//Hibernate/Hibernate Configuration DTD 3.0//EN"
          "http://hibernate.sourceforge.net/hibernate-configuration-3.0.dtd">
<hibernate-configuration>
    <session-factory>
    <!-- 方言 -->
        <property name="dialect">org.hibernate.dialect.MySQLDialect</property>
        <!-- 数据库连接 -->
        <property name="connection.url">jdbc:mysql://localhost:3306/learn</property>
        <!-- 数据库连接用户名 -->
        <property name="connection.username">root</property>
        <!-- 数据库连接密码 -->
        <property name="connection.password">1120</property>
        <!-- 数据库驱动 -->
        <property name="connection.driver_class">com.mysql.jdbc.Driver</property>
        <!-- 打印SQL语句 -->
        <property name="show_sql">true</property>
        <!-- 自动建表 -->
        <property name="hibernate.hbm2ddl.auto">update</property>
        <!-- 映射文件 -->
        <mapping resource="com/xqh/model/Medicine.hbm.xml"/>
    </session-factory>
</hibernate-configuration>

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"%>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<title>批量添加药品信息</title>
<style type="text/css">
td {
background: #EBEBEB;
font-family: Verdana;
font-size: 12px;
background-color: #EBEBEB;
color: black;
line-height: 20px;
height: 30px;
}
</style>
<script type="text/javascript">
function add(){
var a = document.getElementById("a");
var b = document.getElementById("b");
b.innerHTML += a.innerHTML;
}

function reduce() {
var a = document.getElementById("a");
var b = document.getElementById("b");
var stra = a.innerHTML;
var strb = b.innerHTML;
b.innerHTML = strb.substring(0, strb.length - stra.length);
}
function save(formName){
    for(i=0;i<formName.length;i++){
if(formName.elements[i].value==""){
alert("请填写完整信息!");
    return false;
}
    }
}
</script>
</head>

<body onload="add()">
<form action="SaveMedicine" method="post"
onsubmit="return save(this);">
<table align="center" border="0" cellpadding="3" cellspacing="1"
width="600">
<tr>
<td align="center">
<br>
<h1>
批量添加药品信息
</h1>
</td>
</tr>
<tr>
<td>
<div id="b"></div>
</td>
</tr>
<tr>
<td>
<input type="button" value="添加一行 " onclick="add()">
<input type="button" value="减少一行" onclick="reduce()">
<input type="submit" value="批量添加到数据库">
</td>
</tr>
</table>
</form>
<div id="a" style="display: none">
<table align="center" border="0">
<tr>
<td>
名称：
</td>
<td>
<input type="text" name="name" size="13">
</td>
<td>
单价：
</td>
<td>
<input type="text" name="price" size="13">
</td>
<td>
厂址：
</td>
<td>
<input type="text" name="factoryAdd" size="30">
</td>
</tr>
</table>
</div>
</body>
</html>

12.result.jsp源代码：

<%@ page language="java" contentType="text/html" pageEncoding="GBK"%>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
  <head>
    <title>结果信息</title>
    <!--
<link rel="stylesheet" type="text/css" href="styles.css">
    -->
  </head>

  <body>
    <div align="center">
    <font color="red" size="12px;" style="font-weight: bold;">
    ${info}
    </font>
    <br><br><br><br>
    <a href="index.jsp">返回</a>
    </div>
  </body>
</html>

13.数据表tb_medicine_batch结构：

14.程序运行结果截图：