info_classaction.java

J2EE架构的权限系统

//Created by MyEclipse Struts
// XSL source (default): platform:/plugin/com.genuitec.eclipse.cross.easystruts.eclipse_3.8.4/xslt/JavaClass.xsl

package com.infosys.struts.action;

import java.util.ArrayList;
import java.util.List;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import net.sf.hibernate.HibernateException;
import net.sf.hibernate.Query;
import net.sf.hibernate.Session;

import org.apache.struts.action.Action;
import org.apache.struts.action.ActionForm;
import org.apache.struts.action.ActionForward;
import org.apache.struts.action.ActionMapping;
import org.infosys.logic.ComList;
import org.infosys.logic.ComParam;
import org.infosys.logic.InfoTips;
import org.infosys.logic.PagesInfo;
import org.infosys.security.Check;
import org.infosys.util.DbPages;

import com.infosys.Hibernate.SessionFactory;
import com.infosys.Hibernate.TblNewsclass;

/** 
 * MyEclipse Struts
 * Creation date: 08-27-2005
 * 
 * XDoclet definition:
 * @struts:action
 * @struts:action-forward name="admin/info_class" path="/admin/info_class.jsp"
 */
public class Info_classAction extends Action {

	// --------------------------------------------------------- Instance Variables

	// --------------------------------------------------------- Methods

	/** 
	 * Method execute
	 * @param mapping
	 * @param form
	 * @param request
	 * @param response
	 * @return ActionForward
	 */
	public ActionForward execute(
		ActionMapping mapping,
		ActionForm form,
		HttpServletRequest request,
		HttpServletResponse response) {
		//验证登录以及权限
		String isrights=Check.isRights(request,response);
		if(!isrights.equals("OK")){
			org.infosys.security.Check.redirectErr(request,response,"err.do?errmsg="+isrights);
			return null;
		}else{
			//业务逻辑
			boolean isdata=false;
			int pageSize=org.infosys.common.Constants.PAGE_SIZE;
			String page=request.getParameter("page");
			page=(page==null)?"1":page.trim();
			ComList itera=new ComList();
			ComParam para;
			String PagesStr="";
			Session session;
			try {
				session = SessionFactory.currentSession();
				int totalNum=((Integer)session.createQuery("select count(*) from TblNewsclass a").uniqueResult()).intValue();
				String dbPagesArr[]=(new DbPages()).GetPageInfo(totalNum+"",pageSize,page,"info_class.do?");
				PagesStr=dbPagesArr[2];
				Query query=session.createQuery("from TblNewsclass a order by a.vieworder asc");
				query.setFirstResult(Integer.parseInt(dbPagesArr[0]));
				query.setMaxResults(pageSize);
				List querylist=query.list();
				if(querylist!=null && querylist.size()>0){
					List list=new ArrayList();
					TblNewsclass classObj;
					String bgcolor="#ffffff";
					for(int i=0;i<querylist.size();i++){
						bgcolor=((i % 2)==0)?"#ffffff":"#eaeaea";
						classObj=(TblNewsclass)querylist.get(i);
						para=new ComParam();
						para.setParam0(bgcolor);
						para.setParam1(classObj.getClasscode());
						para.setParam2(classObj.getClassname());
						list.add(para);
					}
					itera.setParamlist(list);
					classObj=null;
					isdata=true; //有数据
				}
				dbPagesArr=null;
				querylist=null;
			} catch (HibernateException e) {
				e.printStackTrace();
			} finally {
				try {
					SessionFactory.closeSession();
				} catch (HibernateException e1) {
					e1.printStackTrace();
				}
			}
			request.setAttribute("ComList",itera);
			
			if(isdata){ //有数据
				PagesInfo pagesinfo=new PagesInfo();
				pagesinfo.setPageinfo(PagesStr);
				request.setAttribute("PagesInfo",pagesinfo);
			}else{
				InfoTips infotips=new InfoTips();
				infotips.setTipsInfo("No data");
				request.setAttribute("InfoTips",infotips);
			}
			itera=null;
			return mapping.findForward("admin/info_class");
		}
	}

}