package manager;
import java.sql.*;
import java.text.*;
import java.util.*;
import org.hibernate.*;
import model.*;
import java.util.Date;
public class UserInfoManager
{
public UserInfo userLogin(String username, String password)
{
Session session = HibernateUtil.getCurrentSession();
UserInfo user = null;
try
{
String hql = "from UserInfo u where u.username='"+username+"' and u.password='"+password+"'";
user = (UserInfo)session.createQuery(hql).uniqueResult();
}
catch(Exception ex)
{
ex.printStackTrace();
}
finally
{
HibernateUtil.closeSession(session);
}
return user;
}
public UserInfo getOneUser(long uid)
{
Session session = HibernateUtil.getCurrentSession();
UserInfo user = null;
try
{
String hql = "from UserInfo u where u.id=" + uid;
user = (UserInfo)session.createQuery(hql).uniqueResult();
}
catch(Exception ex)
{
ex.printStackTrace();
}
finally
{
HibernateUtil.closeSession(session);
}
return user;
}
public void updateUserInfo(long uid)
{
Session session = HibernateUtil.getCurrentSession();
Transaction tx = null;
try
{
tx = session.beginTransaction();
UserInfo user = getOneUser(uid);
user.setLogintime(getCurrentTime());
session.update(user, uid);
tx.commit();
}
catch(Exception ex)
{
if(tx!=null)
tx.rollback();
ex.printStackTrace();
}
finally
{
HibernateUtil.closeSession(session);
}
}
public List getUserList()
{
Session session = HibernateUtil.getCurrentSession();
List list = new ArrayList();
try
{
String hql = "from UserInfo";
list = session.createQuery(hql).list();
}
catch(Exception ex)
{
ex.printStackTrace();
}
finally
{
HibernateUtil.closeSession(session);
}
return list;
}
public String getCurrentTime()
{
Calendar c = new GregorianCalendar();
StringBuffer sb = new StringBuffer();
int year = c.get(Calendar.YEAR);
int month = c.get(Calendar.MONTH) + 1;
int day = c.get(Calendar.DAY_OF_MONTH);
int hour = c.get(Calendar.HOUR_OF_DAY);
int minute = c.get(Calendar.MINUTE);
int second = c.get(Calendar.SECOND);
sb.append(year).append("-").append(month<10?("0"+month):month).append("-").append(day<10?("0"+day):day).append(" ");
sb.append(hour<10?("0"+hour):hour).append(":").append(minute<10?("0"+minute):minute).append(":").append(second<10?("0"+second):second);
return sb.toString();
}
public void delOnlineUser()
{
Session session = HibernateUtil.getCurrentSession();
Transaction tx = null;
List list = getUserList();
if(list!=null)
{
Iterator iter = list.iterator();
while(iter.hasNext())
{
tx = session.beginTransaction();
UserInfo user = (UserInfo)iter.next();
long userTime = getDateTime(user.getLogintime());
long currentTime = getDateTime(getCurrentTime());
if((currentTime-userTime)>1200000)
{
session.delete(user);
}
tx.commit();
}
}
}
public long getDateTime(String currentTime)
{
long time = 0;
try
{
SimpleDateFormat format = new SimpleDateFormat("", Locale.SIMPLIFIED_CHINESE);
format.applyPattern("yyyy-MM-dd HH:mm:ss");
Date date = format.parse(currentTime);
time = date.getTime();
}
catch(Exception ex)
{
ex.printStackTrace();
}
return time;
}
public static void main(String[] args)throws Exception
{
new UserInfoManager().delOnlineUser();
}
}
dwr完整实例.rar （44个子文件） 
dwr 
.mystrutsdata 262B src form UserInfoForm.java 508B manager OnLine.java 466B UserInfoManager.java 3KB action UserInfoAction.java 728B model HibernateUtil.java 950B UserInfo.hbm.xml 591B UserInfo.java 692B dwr Username.java 198B hibernate.cfg.xml 1KB .project 1KB WebRoot onlineUser.jsp 825B META-INF MANIFEST.MF 39B WEB-INF struts-nested.tld 70KB validator-rules.xml 13KB struts-bean.tld 9KB struts-html.tld 72KB struts-logic.tld 14KB struts-tiles.tld 8KB web.xml 1KB dwr.xml 399B .struts-config.mex 744B classes form UserInfoForm.class 810B manager UserInfoManager.class 5KB OnLine.class 1KB action UserInfoAction.class 2KB model HibernateUtil.class 1KB UserInfo.hbm.xml 591B UserInfo.class 1KB dwr Username.class 486B hibernate.cfg.xml 1KB struts-config.xml 811B lib 
commons-beanutils.jar 184KB jakarta-oro.jar 64KB commons-validator.jar 82KB commons-fileupload.jar 22KB commons-logging.jar 37KB struts.jar 531KB antlr.jar 350KB commons-digester.jar 164KB jscript test.js 399B test.jsp 804B .mymetadata 282B .classpath 617B .myeclipse 资源评论
