Hibernate实现批量添加数据的方法

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
      }
    }
  }
}

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;
  }
}

<?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>

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);
  }
}

/*
 * 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;
  }
}

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
      }
    }
  }
}

<?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>

### 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

<%@ 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>

<%@ 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>