orderaddservlet.java

一套购物车项目。电子商务系统。实现了前台和后台的业务逻辑。

package com.softfz.jn0708.servlet;

import java.io.IOException;
import java.io.PrintWriter;
import java.text.DateFormat;
import java.text.SimpleDateFormat;
import java.util.Calendar;
import java.util.Iterator;
import java.util.List;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;
import com.softfz.jn0708.bean.ItemBean;
import com.softfz.jn0708.bean.OrderBean;
import com.softfz.jn0708.bean.OrderDetailBean;
import com.softfz.jn0708.bean.UserBean;
import com.softfz.jn0708.dao.OrderDAO;
import com.softfz.jn0708.util.XPage;
/**
 * 订单明细Bean
 * @author student
 *
 */
public class OrderAddServlet extends HttpServlet {

	/**
	 * 
	 */
	private static final long serialVersionUID = -2954716195548766026L;

	/**
	 * 
	 *
	 * 
	 */
	public void doGet(HttpServletRequest request, HttpServletResponse response)
			throws ServletException, IOException {
			doPost(request,response);

	}

	/**
	 * 
	 *doPost方法
	 *
	 */
	public void doPost(HttpServletRequest request, HttpServletResponse response)
			throws ServletException, IOException {
		String  params = null;
		String contextPath = request.getContextPath();
		response.setContentType("text/html");
		PrintWriter out = response.getWriter();
		String task = request.getParameter("task");
		HttpSession session = request.getSession();				
		List list = (List)session.getAttribute("car");		
		if(list!=null){
			Iterator iter = list.iterator();
			double tolmoney=0.0;
			while(iter.hasNext()) {
			ItemBean element = (ItemBean)iter.next();
			tolmoney =tolmoney + element.getSubmeney();						
			}
			ItemBean.setTolmoney(tolmoney);			
		}		
		
		if(task==null){				
			params = "showorder";
			request.setAttribute("params",params);
			request.getRequestDispatcher("/order/order.jsp").forward(request,response);
						
		}else if(task.equals("add")){
			
//			System.out.println(request.getParameter("orderdetailid"));			
			Calendar cd = Calendar.getInstance();
			DateFormat df = new SimpleDateFormat("yyyy-MM-dd");
			String date = df.format(cd.getTime());
			OrderDAO orderdao = new OrderDAO();
			String orderid = orderdao.getOrderID();
			params = "addorder";
			String tolmeney = ItemBean.getViewtolmoney();
			request.setAttribute("orderid",orderid);		
			request.setAttribute("tolmeney",tolmeney);
			request.setAttribute("date",date);
			request.setAttribute("params",params);				
			request.getRequestDispatcher("/order/order.jsp").forward(request,response);
		}else if(task.equals("doadd")){
			
		//封装OrderBean 
			OrderBean order = new OrderBean();
			OrderDAO orderdao = new OrderDAO();
			order.parseOrderBean(request);
			
			boolean flag = orderdao.addorder(order,list);
			if(flag){
				session.removeAttribute("car");
				out.println("<script>");			
				out.println("alert('下单成功，等待管理员审核！');");
				out.println("location.href='"+contextPath+"/itemServlet';");
				out.println("</script>");
				out.flush();
				out.close();
			}else{
				out.println("<script>");			
				out.println("alert('下单失败！');");
				out.println("history.back();");
				out.println("</script>");
				out.flush();
				out.close();
			}		

		}else if(task.equals("queryorder")){
		

			UserBean user = (UserBean)session.getAttribute("user");
			OrderDAO orderdao = new OrderDAO();		
			OrderBean order = new  OrderBean();
			String pagenum = request.getParameter("currentPage");
			int currentPage = 1;
			try {
				currentPage = Integer.parseInt(pagenum);
			} catch (Exception e) {
				currentPage=1;
			}		
			int count = 10;		
			String path = request.getContextPath()+"/orderAddServlet?task=queryorder&";
			String sql = "select count(orderid) from t_Orderinfo  where 1=1 and userid = "+user.getUserid();
			XPage page = new XPage(currentPage,count,sql);
			page.setPath(path);
			List orderlist = orderdao.queryorder(currentPage,count,order,request);	
			request.setAttribute("orderlist",orderlist);
			request.setAttribute("mpage",page);
			if(orderlist.size()==0){
				request.setAttribute("orderlist",null);
			}			
			request.getRequestDispatcher("/order/orderList.jsp").forward(request,response);
		}else if(task.equals("ordershow")){
			String orderid = request.getParameter("orderid");			
			OrderDAO orderdao = new OrderDAO();
			OrderBean orderbean = orderdao.getorderByID(orderid);
			List orderdetaillist = orderdao.getdetailorderbyid(orderid);
			
			if(orderdetaillist!=null){
				Iterator iter = orderdetaillist.iterator();
				double tolprice=0.0;
				while(iter.hasNext()) {
				OrderDetailBean element = (OrderDetailBean)iter.next();
				tolprice =tolprice + element.getSubmeney();						
				}
				ItemBean.setTolmoney(tolprice);			
			}	
			String tolmeney = ItemBean.getViewtolmoney();
			
			request.setAttribute("orderbean",orderbean);
			request.setAttribute("tolmeney",tolmeney);
			request.setAttribute("orderdetaillist",orderdetaillist);
			request.getRequestDispatcher("/order/orderDetail.jsp").forward(request,response);
		}
		
	}
}