Hibernate完成批量添加數據的辦法。本站提示廣大學習愛好者:(Hibernate完成批量添加數據的辦法)文章只能為提供參考,不一定能成為您想要的結果。以下是Hibernate完成批量添加數據的辦法正文
本文實例講述了Hibernate完成批量添加數據的辦法。分享給年夜家供年夜家參考,詳細以下:
1.Hibernate_016_BatchAddData法式目次構造:
2.lib目次下所引入的jar包:
3.MedicineDao.java源代碼:
package com.xqh.dao; import java.util.List; import org.hibernate.Session; import com.xqh.model.Medicine; import com.xqh.util.HibernateUtil; /** * 藥品數據庫操作類 * */ public class MedicineDao { /** * 批量保留藥品 * * @param ms * List聚集 */ public void saveMedicines(List<Medicine> ms) { Session session = null; if (ms != null && ms.size() > 0) { try { session = HibernateUtil.getSession(); // 獲得Session session.beginTransaction(); // 開啟事物 Medicine medicine = null; // 創立藥品對象 // 輪回獲得藥品對象 for (int i = 0; i < ms.size(); i++) { medicine = (Medicine) ms.get(i); // 獲得藥品 session.save(medicine); // 保留藥品對象 // 批拔出的對象立刻寫入數據庫並釋放內存 if (i % 10 == 0) { session.flush(); session.clear(); } } session.getTransaction().commit(); // 提交事物 } catch (Exception e) { e.printStackTrace(); // 打印毛病信息 session.getTransaction().rollback(); // 失足將回滾事物 } finally { HibernateUtil.closeSession(session); // 封閉Session } } } }
4.Medicine.java源代碼:
package com.xqh.model; /** * 藥品耐久化類 */ public class Medicine { private Integer id; //id號 private String name; //藥品稱號 private double price; //價錢 private String factoryAdd; //出廠地址 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源代碼:
<?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源代碼:
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 { // 藥品稱號 String names[] = request.getParameterValues("name"); // 價錢 String prices[] = request.getParameterValues("price"); // 出廠地址 String adds[] = request.getParameterValues("factoryAdd"); // 有用性斷定 if(names != null && prices != null && adds != null){ if(names.length == prices.length && names.length == adds.length){ // 實例化一個List聚集 List<Medicine> ms = new ArrayList<Medicine>(); Medicine m = null; // 藥品對象 // 順次實例化藥品對象並添加到聚集中 for (int i = 0; i < names.length; i++) { m = new Medicine(); // 實例化藥品 // 對屬性賦值 m.setName(names[i]); m.setPrice(Double.parseDouble(prices[i])); m.setFactoryAdd(adds[i]); ms.add(m); // 添加到聚集中 } // 實例化MedicineDao對象 MedicineDao dao = new MedicineDao(); dao.saveMedicines(ms); // 批量保留藥品 request.setAttribute("info", "藥品信息保留勝利!!!"); } } // 轉發到result.jsp頁面 request.getRequestDispatcher("result.jsp").forward(request, response); } }
7.CharacterEncodingFilter.java源代碼:
/* * 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; /** * 字符編碼過濾器 */ 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源代碼:
package com.xqh.util; import org.hibernate.HibernateException; import org.hibernate.Session; import org.hibernate.SessionFactory; import org.hibernate.cfg.Configuration; /** * Hibernate初始化類,用於獲得Session、SessionFactory 及封閉Session */ public class HibernateUtil { // SessionFactory對象 private static SessionFactory factory = null; // 靜態塊 static { try { // 加載Hibernate設置裝備擺設文件 Configuration cfg = new Configuration().configure(); // 實例化SessionFactory factory = cfg.buildSessionFactory(); } catch (HibernateException e) { e.printStackTrace(); } } /** * 獲得Session對象 * @return Session對象 */ public static Session getSession() { //假如SessionFacroty不為空,則開啟Session Session session = (factory != null) ? factory.openSession() : null; return session; } /** * 獲得SessionFactory對象 * @return SessionFactory對象 */ public static SessionFactory getSessionFactory() { return factory; } /** * 封閉Session * @param session對象 */ public static void closeSession(Session session) { if (session != null) { if (session.isOpen()) { session.close(); // 封閉Session } } } }
9.hibernate.cfg.xml源代碼:
<?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> <!-- 數據庫銜接 --> <property name="connection.url">jdbc:mysql://localhost:3306/learn</property> <!-- 數據庫銜接用戶名 --> <property name="connection.username">root</property> <!-- 數據庫銜接暗碼 --> <property name="connection.password">1120</property> <!-- 數據庫驅動 --> <property name="connection.driver_class">com.mysql.jdbc.Driver</property> <!-- 打印SQL語句 --> <property name="show_sql">true</property> <!-- 主動建表 --> <property name="hibernate.hbm2ddl.auto">update</property> <!-- 映照文件 --> <mapping resource="com/xqh/model/Medicine.hbm.xml"/> </session-factory> </hibernate-configuration>
10.log4j.properties源代碼:
### 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源代碼:
<%@ page language="java" contentType="text/html" pageEncoding="GBK"%> <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"> <html> <head> <title>批量添加藥品信息</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("請填寫完全信息!"); 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> 批量添加藥品信息 </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="削減一行" onclick="reduce()"> <input type="submit" value="批量添加到數據庫"> </td> </tr> </table> </form> <div id="a" > <table align="center" border="0"> <tr> <td> 稱號: </td> <td> <input type="text" name="name" size="13"> </td> <td> 單價: </td> <td> <input type="text" name="price" size="13"> </td> <td> 廠址: </td> <td> <input type="text" name="factoryAdd" size="30"> </td> </tr> </table> </div> </body> </html>
12.result.jsp源代碼:
<%@ page language="java" contentType="text/html" pageEncoding="GBK"%> <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"> <html> <head> <title>成果信息</title> <!-- <link rel="stylesheet" type="text/css" href="styles.css"> --> </head> <body> <div align="center"> <font color="red" size="12px;" > ${info} </font> <br><br><br><br> <a href="index.jsp">前往</a> </div> </body> </html>
13.數據表tb_medicine_batch構造:
14.法式運轉成果截圖:
願望本文所述對年夜家基於Hibernate框架的Java法式設計有所贊助。