简单的手工hibernate程序示例
本文讲述了简单的手工hibernate程序示例。分享给大家供大家参考。具体如下：
今天学习了下hibernate，写了个小的手工程序，总结下，
首先创建数据库表：
createtableincrement_testr(idbigintnotnull,namechar(10),primarykey(id));
eclipse下，新建工程。
新建数据库表的映射，这里使用手工方式完成：
IncrementTester.java
publicclassIncrementTester{
privateLongid;
privateStringname;
publicIncrementTester(){}
publicIncrementTester(Stringname){
this.name=name;
}
publicLonggetId(){
returnthis.id;
}
privatevoidsetId(Longid){
this.id=id;
}
publicStringgetName(){
returnthis.name;
}
publicvoidsetName(Stringname){
this.name=name;
}
}
对应编写映射xml文件
IncrementTester.hbm.xml
PUBLIC"-//Hibernate/HibernateMappingDTD3.0//EN"
"http://hibernate.sourceforge.net/hibernate-mapping-3.0.dtd">
private
实现具体功能的类BussinessService
importjava.lang.reflect.*;
importorg.hibernate.*;
importorg.hibernate.cfg.*;
importjava.io.*;
importjava.sql.*;
importjava.util.*;
publicclassBussinessService{
publicstaticSessionFactorysessionFactory;
static{
try{
Configurationconfig=newConfiguration().configure();
sessionFactory=config.buildSessionFactory();
}catch(Exceptione){
e.printStackTrace();
}
}
publicvoidfindAllObjects(StringclassName){
Sessionsession=sessionFactory.openSession();
Transactiontx=null;
try{
tx=session.beginTransaction();
Listobjects=session.createQuery("from"+className).list();
for(Iteratorit=objects.iterator();it.hasNext();){
Longid=newLong(0);
IncrementTesterxx=(IncrementTester)it.next();
id=xx.getId();
System.out.println("IDof"+className+":"+id+"name:"+xx.getName());
}
tx.commit();
}catch(Exceptione){
e.printStackTrace();
}finally{
session.close();
}
}
publicvoidsaveObject(Objectobject){
Sessionsession=sessionFactory.openSession();
Transactiontx=null;
try{
tx=session.beginTransaction();
session.save(object);
tx.commit();
}catch(Exceptione){
e.printStackTrace();
if(tx!=null){
tx.rollback();
}
}finally{
session.close();
}
}
publicvoiddeleteAllObject(StringclassName){
Sessionsession=sessionFactory.openSession();
Transactiontx=null;
try{
tx=session.beginTransaction();
Queryquery=session.createQuery("deletefrom"+className);
query.executeUpdate();
tx.commit();
}catch(Exceptione){
e.printStackTrace();
if(tx!=null){
tx.rollback();
}
}finally{
session.close();
}
}
}
实现主函数：
publicclasstest{
/**
*@paramargs
*/
publicstaticvoidmain(String[]args){
//TODOAuto-generatedmethodstub
Stringname="IncrementTester";
BussinessServiceaa=newBussinessService();
aa.deleteAllObject(name);
Objecto1=null;
try{
o1=Class.forName(name).newInstance();
((IncrementTester)o1).setName("caijie");
aa.saveObject(o1);
o1=Class.forName(name).newInstance();
((IncrementTester)o1).setName("gufeng");
aa.saveObject(o1);
}catch(Exceptione){
e.printStackTrace();
}
aa.findAllObjects(name);
}
}
hibernate配置文件：hibernate.cfg.xml
PUBLIC"-//Hibernate/HibernateConfigurationDTD//EN"
"http://hibernate.sourceforge.net/hibernate-configuration-3.0.dtd">
org.hibernate.dialect.MySQLDialect
com.mysql.jdbc.Driver
jdbc:mysql://localhost:3306/test
root
root
true
增加相应的库，运行后成功得到结果：
Hibernate:deletefromINCREMENT_TESTR Hibernate:selectmax(ID)fromINCREMENT_TESTR Hibernate:insertintoINCREMENT_TESTR(NAME,ID)values(?,?) Hibernate:insertintoINCREMENT_TESTR(NAME,ID)values(?,?) Hibernate:selectincrementt0_.IDasID0_,incrementt0_.NAMEasNAME0_fromINCREMENT_TESTRincrementt0_ IDofIncrementTester:1name:caijie IDofIncrementTester:2name:gufeng
希望本文所述对大家的JSP程序设计有所帮助。