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发表时间：2007-02-23
package com.t48.hr.util;
import org.hibernate.Session;
import org.hibernate.Transaction;
import com.t48.hr.util.HBSessionFactory;
public abstract class TransManager {
public Session sess;
public abstract void process() throws Exception;
public void execute() throws Exception
{
Transaction trans=null;
try {
sess=HBSessionFactory.getCurrentSession();
trans=sess.beginTransaction();
process();
trans.commit();
} catch (Exception e) {
trans.rollback();
e.printStackTrace();
throw e;
// TODO: handle exception
}
finally{
HBSessionFactory.closeCurrentSession();
}
}
}
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发表时间：2007-02-23
package com.t48.hr.admin.bo;
import java.util.ArrayList;
import java.util.List;
import org.hibernate.*;
import com.t48.hr.util.*;
import com.t48.hr.sys.dao.TParamDAO;
import com.t48.hr.sys.vo.TParam;
import com.t48.hr.sys.vo.TParamId;
import com.t48.hr.util.HBSessionFactory;
/*
*
* 基本参数业务处理逻辑
* */
public class baseBO {
static TParamDAO dao = new TParamDAO();//生成一个dao实例
static Session session = null;
//增加基本参数的大类一条记录
public static void insertbase(final TParam info){
try {
TransManager demo = new TransManager(){
public void process() throws Exception {
dao.save(info, sess);
}
};
demo.execute();
} catch (Exception e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
// 根据code返回一个集合
public static List getFormNameList(long code){
List list = null;
try
{
Session session =HBSessionFactory.getCurrentSession();
//根椐code号查出id号相等的字段
String again ="from TParam where id.code = "+code;
Query againquery = session.createQuery(again);
list = againquery.list();
}
catch(Exception e)
{
e.printStackTrace();
}
finally{
session.close();
}
return list;
}
//修改一条记录
public static void updatebase(){
}
//删除一条记录
public static int deletesplit(Long f){
System.out.println("I come to delete f "+f);
int flag=0;
final TParam demo = new TParam();
final TParamId id = new TParamId() ;
id.setId(f);
id.setCode(new Long(0));
demo.setId(id);
try{
TransManager delete = new TransManager(){
public void process() throws Exception {
dao.delete(demo, sess);
}
};
delete.execute();
flag=1;
}
catch(Exception e){
flag=0;
e.printStackTrace();
}
return flag;
}
//查询取ID最大值
public static Long selectbaseID(){
Long baseID = new Long(0);
try{
TransManager delete = new TransManager(){
public void process() throws Exception {
prameter1 = sess.createQuery("select max(t.id.id) from TParam t").uniqueResult();
System.out.println("dsfsdfsdf");
}
};
delete.execute();
baseID=(Long)delete.prameter1;
}
catch(Exception e){
e.printStackTrace();
}
return baseID;
}
//子项删除业务
public static void deletechild(final TParam id){
try{
TransManager delete = new TransManager(){
public void process() throws Exception {
sess.delete(id);
System.out.println("dsfsdfsdf");
}
};
delete.execute();
}
catch(Exception e){
e.printStackTrace();
}
}
public static List serarchid(final Long name){
ArrayList list=null;
try{
TransManager delete = new TransManager(){
public void process() throws Exception {
prameter1 =(List)sess.createQuery("from TParam where code="+name).list();
}
};
delete.execute();
list=(ArrayList)delete.prameter1;
}
catch(Exception e){
e.printStackTrace();
}
return list;
}
/*基本参数的子项删除之后，返回一个集合*/
public static List getBasecontent(final Long id){
ArrayList list=null;
try{
TransManager delete = new TransManager(){
public void process() throws Exception {
prameter1 =(List)sess.createQuery("from TParam where id.code ="+id).list();
}
};
delete.execute();
list=(ArrayList)delete.prameter1;
}
catch(Exception e){
e.printStackTrace();
}
return list;
}
}
利用一个bo来使用 |
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发表时间：2007-02-23
嘿嘿.异常处理上有点问题,重构成下面的:
package com.t48.hr.util;
import org.hibernate.Session;
import org.hibernate.Transaction;
import com.t48.hr.util.HBSessionFactory;
public abstract class TransManager {
public Session sess;
public abstract void process() throws Exception;
public void execute() throws Exception
{
Transaction trans=null;
sess=HBSessionFactory.getCurrentSession(); // 移到这里
try {
trans=sess.beginTransaction();
process();
trans.commit();
} catch (Exception e) {
if (trans != null) { // 要判断
trans.rollback();
}
e.printStackTrace();
throw e;
// TODO: handle exception
}
finally{
HBSessionFactory.closeCurrentSession();
}
}
}
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发表时间：2007-02-23
代码要简化,类似demo一样的东西,查询,update只需要一个就可以了!
粗粗看了看,发现有如下代码: static TParamDAO dao = new TParamDAO();//生成一个dao实例
static Session session = null;
Session为static不会产生线程安全问题？不过好象这个session从来没有使用。 另外看到楼主有如下代码： public static List serarchid(final Long name){
ArrayList list=null;
try{
TransManager delete = new TransManager(){
public void process() throws Exception {
prameter1 =(List)sess.createQuery("from TParam where code="+name).list();
}
};
delete.execute();
list=(ArrayList)delete.prameter1;
}
既然在process里面如此使用session,还是建议将process声明成如下方式： process(HibernateSession sess) throws Exception 一点粗浅见解！ |
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发表时间：2007-02-23
 ...学习了
|
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|
发表时间：2007-02-23
static TParamDAO dao = new TParamDAO();//生成一个dao实例
static Session session = null;
这个是我没有删掉的代码.忘记看了... 我也不知道,线程怎么处理 |
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发表时间：2007-03-06
prameter1沒有聲明啊?
解決辦法 在transManager中加入 public Object prameter1; |
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