sortqueryaction.java

一个java写的网上购物系统

package com.hb.myshop.struts.action;

import java.util.ArrayList;
import java.util.List;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
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 com.hb.myshop.idao.ISortDAO;
import com.hb.myshop.po.Sort;
import com.hb.myshop.tools.PageController;


public class SortQueryAction extends Action {
	 private ISortDAO isortDao;

	public ISortDAO getIsortDao() {
		return isortDao;
	}

	public void setIsortDao(ISortDAO isortDao) {
		this.isortDao = isortDao;
	}

	public ActionForward execute(ActionMapping mapping, ActionForm form,
			HttpServletRequest request, HttpServletResponse response) {
		ISortDAO isortDAO=this.getIsortDao();
	   String sortid= (String)request.getParameter("sortid");
	   String sortname=(String)request.getParameter("sortname");
	   List list=new ArrayList();
	   if(sortid==null&&sortname==null)
	   {   
		   list=isortDAO.findAllSort();
	   }
	   else
	   {   
		   if(sortid.equals("")&&(sortname.equals("")))
		   {
			   list=isortDAO.findAllSort();
		   }
		   if(sortid.equals("")&&(!sortname.equals("")))
	   {   
		   sortname=sortname.trim();
		   list=isortDAO.getsortbyn(sortname);
	   }
	      if((!sortid.equals(""))&&sortname.equals(""))
	   {   
		   sortid=sortid.trim();
		  Sort sort=isortDAO.getsort(sortid);
		  if(sort!=null)
		  {
			  list.add(sort);
		  }
	   }
	     if((!sortid.equals(""))&&(!sortname.equals("")))
	   {
		   sortname=sortname.trim();
		   list=isortDAO.getsortbyn(sortname);
	   }
	   }
	   String pageIndex = request.getParameter("pageIndex");
		if(pageIndex == null)
		{
			pageIndex = "1";
		}
		PageController pc = (PageController) request.getAttribute("pc");
		if (pc == null)
		{
			pc = new PageController();
			pc.setBigList(list);
			request.setAttribute("pc", pc);
		}
		pc.setCurrentPageIndex(Integer.parseInt(pageIndex));
		return new ActionForward("/JSP/sort.jsp");
	}
}