adminorderservlet.java

这是jsp通用模块导航的程序原代码,里面有新闻,bbs等jsp与javabean结合的程序.

package com.wxpn.tutorial.ec.servlet;

import java.io.IOException;
import java.util.Collection;

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

import com.wxpn.tutorial.ec.bean.HotelOrderBean;
import com.wxpn.tutorial.ec.bean.PlaneOrderBean;
import com.wxpn.tutorial.ec.bean.RouteOrderBean;
import com.wxpn.tutorial.ec.util.StringUtil;

/**
 * Servlet implementation class for Servlet: UserListServlet
 */
public class AdminOrderServlet extends javax.servlet.http.HttpServlet implements
		javax.servlet.Servlet {
	/*
	 * (non-Java-doc)
	 * 
	 * @see javax.servlet.http.HttpServlet#HttpServlet()
	 */
	public AdminOrderServlet() {
		super();
	}

	/*
	 * (non-Java-doc)
	 * 
	 * @see javax.servlet.http.HttpServlet#doGet(HttpServletRequest request,
	 *      HttpServletResponse response)
	 */
	protected void doGet(HttpServletRequest request,
			HttpServletResponse response) throws ServletException, IOException {
		response.setHeader("Pragma","No-cache");
		response.setHeader("Cache-Control","no-cache");
		response.setDateHeader("Expires", 0);
		
		int pagesize = 10;
		String page = request.getParameter("page");
		int count='0';
		String flag= StringUtil.nullToStr(request.getParameter("flag"));
		Collection c= null;
		
		if (page == null) {
			page = "1";
		}
		if(flag.equals("plane")){
		PlaneOrderBean orderbean = new PlaneOrderBean();
		count = orderbean.getCount();// 记录总数
		c = orderbean.getAll(pagesize, Integer.parseInt(page),"");
		System.out.println(count);
		}else if(flag.equals("hotel")){
			HotelOrderBean orderbean = new HotelOrderBean();
			count = orderbean.getCount();// 记录总数
		 c = orderbean.getAll(pagesize, Integer.parseInt(page),"");
		}else if(flag.equals("route")){
			RouteOrderBean orderbean = new RouteOrderBean();
			count = orderbean.getCount();// 记录总数
		 c = orderbean.getAll(pagesize, Integer.parseInt(page),"");
		}
		int totalPageNum = count / pagesize;// 逻辑页数
		// 如果纪录总数除以每页的显示个数,余数大于0,那么
		// 逻辑页数应该为商+1
		if ((count % pagesize) > 0) {
			totalPageNum += 1;
		}
		request.setAttribute("totalPageNum", new Integer(totalPageNum));
		
		request.setAttribute("c", c);
		try {
			if(flag.equals("plane")){
				request.getRequestDispatcher("/orderlist/planeorder_list.jsp").forward(
						request, response);
				}else if(flag.equals("hotel")){
					request.getRequestDispatcher("/orderlist/hotelorder_list.jsp").forward(
							request, response);
				}else if(flag.equals("route")){
					request.getRequestDispatcher("/orderlist/routeorder_list.jsp").forward(
							request, response);
				}
			request.getRequestDispatcher("/orderlist/planeorder_list.jsp").forward(
					request, response);
		} catch (Throwable t) {
			getServletContext().log(t.getMessage());
		}
	}
}