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：
复制代码 代码如下:
create table increment_testr(id bigint not null, name char(10), primary key(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
public class incrementtester {
private long id;
private string name;
public incrementtester(){}
public incrementtester(string name){
this.name = name;
}
public long getid(){
return this.id;
}
private void setid(long id){
this.id = id;
}
public string getname(){
return this.name;
}
public void setname(string name){
this.name = name;
}
}
对应编写映射xml文件
incrementtester.hbm.xml
public "-//hibernate/hibernate mapping dtd 3.0//en"
"http://hibernate.sourceforge.net/hibernate-mapping-3.0.dtd">
private
实现具体功能的类bussinessservice
import java.lang.reflect.*;
import org.hibernate.*;
import org.hibernate.cfg.*;
import java.io.*;
import java.sql.*;
import java.util.*;
public class bussinessservice {
public static sessionfactory sessionfactory;
static{
try{
configuration config = new configuration().configure();
sessionfactory = config.buildsessionfactory();
}catch(exception e){
e.printstacktrace();
}
}
public void findallobjects(string classname){
session session = sessionfactory.opensession();
transaction tx = null;
try{
tx = session.begintransaction();
list objects = session.createquery("from "+classname).list();
for(iterator it = objects.iterator();it.hasnext();){
long id = new long(0);
incrementtester xx = (incrementtester)it.next();
id=xx.getid();
system.out.println("id of "+classname+":"+id+" name: "+xx.getname());
}
tx.commit();
}catch(exception e){
e.printstacktrace();
}finally{
session.close();
}
}
public void saveobject(object object){
session session = sessionfactory.opensession();
transaction tx = null;
try{
tx = session.begintransaction();
session.save(object);
tx.commit();
}catch(exception e){
e.printstacktrace();
if(tx != null){
tx.rollback();
}
}finally{
session.close();
}
}
public void deleteallobject(string classname){
session session = sessionfactory.opensession();
transaction tx = null;
try{
tx = session.begintransaction();
query query=session.createquery("delete from "+classname);
query.executeupdate();
tx.commit();
}catch(exception e){
e.printstacktrace();
if(tx!=null){
tx.rollback();
}
}finally{
session.close();
}
}
}
实现主函数：
public class test {
/**
* @param args
*/
public static void main(string[] args) {
// todo auto-generated method stub
string name="incrementtester";
bussinessservice aa = new bussinessservice();
aa.deleteallobject(name);
object o1 = 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 (exception e) {
e.printstacktrace();
}
aa.findallobjects(name);
}
}
hibernate配置文件：hibernate.cfg.xml
public "-//hibernate/hibernate configuration dtd//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: delete from increment_testr
hibernate: select max(id) from increment_testr
hibernate: insert into increment_testr (name, id) values (?, ?)
hibernate: insert into increment_testr (name, id) values (?, ?)
hibernate: select incrementt0_.id as id0_, incrementt0_.name as name0_ from increment_testr incrementt0_
id of incrementtester:1 name: caijie
id of incrementtester:2 name: gufeng
希望本文所述对大家的jsp程序设计有所帮助。
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