controlservlet.java

网上购物系统的简易代码

package com.tarena.develop.control;

import java.io.IOException;
import java.util.List;


import javax.servlet.RequestDispatcher;
import javax.servlet.ServletContext;
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.tarena.develop.common.BusinessFactory;
import com.tarena.develop.common.JDBCUtil;
import com.tarena.develop.entity.Order;
import com.tarena.develop.entity.OrderLine;
import com.tarena.develop.entity.Product;
import com.tarena.develop.entity.User;
import com.tarena.develop.service.impl.OrderService;
import com.tarena.develop.service.impl.OrderServiceImpl;
import com.tarena.develop.service.impl.ProductService;
import com.tarena.develop.service.impl.ProductServiceImpl;
import com.tarena.develop.service.impl.ShopCart;
import com.tarena.develop.service.impl.UserService;
import com.tarena.develop.service.impl.UserServiceImpl;

public class ControlServlet extends HttpServlet {
	public void doGet(HttpServletRequest request,HttpServletResponse response) throws ServletException,IOException{
		String path = request.getServletPath();
		String username = request.getParameter("username");
		String password = request.getParameter("password");
		String token = request.getParameter("token");
		System.out.print("lalal");
//		UserService us = new UserServiceImpl();
//		User u = us.getUser(username, password);
		if("/test/user/dologin.do".equals(path)){
			System.out.print("^^^^^^^^^^");
			String error = null;
			UserService us = new UserServiceImpl();
			User u = us.getUser(username, password);
			if(u!=null){
				HttpSession session = request.getSession();
				session.setAttribute("user", u);
				if(token.equals(String.valueOf(session.getAttribute("token")))){
					//得到容器环境
					ServletContext context = this.getServletContext();
					//创建请求转发器
					RequestDispatcher dispatcher = context.getRequestDispatcher("/test/user/welcome.jsp");
					//转发
					dispatcher.forward(request, response);
				}else{
					error = "对不起你的验证码错误！";
					request.setAttribute("error", error);
					ServletContext context = this.getServletContext();
					//创建请求转发器
					RequestDispatcher dispatcher = context.getRequestDispatcher("/test/global/error.jsp");
					//转发
					dispatcher.forward(request, response);
				}
				
			}else{
				error = "对不起你的用户名或密码错误！";
				request.setAttribute("error", error);
				ServletContext context = this.getServletContext();
				//创建请求转发器
				RequestDispatcher dispatcher = context.getRequestDispatcher("/test/global/error.jsp");
				//转发
				dispatcher.forward(request, response);
			}
		}
		//查看用户的详细信息
		if("/test/user/userinfo.do".equals(path)){
			System.out.print("haha");
//			HttpSession session = request.getSession(false);
//			session.setAttribute("user", u);
			ServletContext context = this.getServletContext();
			//创建请求转发器
			RequestDispatcher dispatcher = context.getRequestDispatcher("/test/user/userinfo.jsp");
			//转发
			dispatcher.forward(request, response);
		}
		if("/login.do".equals(path)){
			HttpSession session = request.getSession();
			session.setAttribute("token", JDBCUtil.getToken());
			
			ProductService ps = (ProductService) BusinessFactory.getBusiness(ProductService.class.getName());
			
			List<Product> products = ps.getProducts();
			request.setAttribute("products", products);
			ServletContext context = this.getServletContext();
			//创建请求转发器
			RequestDispatcher dispatcher = context.getRequestDispatcher("/index.jsp");
			//转发
			dispatcher.forward(request, response);
		}
		if("/test/order/orderlist.do".equals(path)){
			HttpSession session = request.getSession(false);
			User u = (User) session.getAttribute("user");
			OrderService os = new OrderServiceImpl();
			List<Order> orders = os.getOrders(u);
			request.setAttribute("orders", orders);
			ServletContext context = this.getServletContext();
			//创建请求转发器
			RequestDispatcher dispatcher = context.getRequestDispatcher("/test/order/orderlist.jsp");
			//转发
			dispatcher.forward(request, response);
		}
		if("/test/order/orderdetail.do".equals(path)){
			HttpSession session = request.getSession(false);
			User u = (User) session.getAttribute("user");
			String oid = request.getParameter("orderid");
			
			OrderService os = new OrderServiceImpl();
			Order order = os.getOrder(Integer.parseInt(oid), u);
			
			List<OrderLine> orderlines = os.getOrderLine(order);
//			List<OrderLine> orderlines = new ArrayList<OrderLine>();
//			OrderLine ol = new OrderLine();
//			Order order1 = new Order();
//			order1.setOrderid(1);
//			order1.setOrdername("cc1111");
//			order1.setOrderlines(orderlines)
			
//			Product product = new ProductServiceImpl().find(1);
			
//			ol.setOrder(order1);
//			ol.setOrderlineid(1);
//			ol.setProduct(product);
//			ol.setAmount(3);
//			orderlines.add(ol);
			
			
			request.setAttribute("orderlines",orderlines );
			request.setAttribute("order", order);
			ServletContext context = this.getServletContext();
			//创建请求转发器
			RequestDispatcher dispatcher = context.getRequestDispatcher("/test/order/orderdetail.jsp");
			//转发
			dispatcher.forward(request, response);
		}
		if("/shopcart/addtoshopcart.do".equals(path)){
			String pid = request.getParameter("pid");

			HttpSession session = request.getSession(true);
			ShopCart sc = (ShopCart) session.getAttribute("sc");
			
			System.out.print(sc);
			
			Product pro = new  ProductServiceImpl().find(Integer.parseInt(pid));
			
			sc.addProduct(pro);
			
			ServletContext context = this.getServletContext();
			//创建请求转发器
			RequestDispatcher dispatcher = context.getRequestDispatcher("/test/shopcart/shopcart.jsp");
			//转发
			dispatcher.forward(request, response);
		}
//		if("/order/orderconfirm.do".equals(path)){
//			
//			ServletContext context = this.getServletContext();
//			//创建请求转发器
//			RequestDispatcher dispatcher = context.getRequestDispatcher("/test/order/orderconfirm.jsp");
//			//转发
//			dispatcher.forward(request, response);
//		}
//		if("/shopcart/toshopcart.do".equals(path)){
//			ServletContext context = this.getServletContext();
//			//创建请求转发器
//			RequestDispatcher dispatcher = context.getRequestDispatcher("/test/shopcart/shopcart.jsp");
//			//转发
//			dispatcher.forward(request, response);
//		}
//		if("/order/ordercommit.do".equals(path)){
//			GregorianCalendar gc = new GregorianCalendar();
//			String year = String.valueOf(gc.get(Calendar.YEAR));
//			String month = String.valueOf(gc.get(Calendar.MONTH));
//			String day = String.valueOf(gc.get(Calendar.DAY_OF_MONTH));
//			String hour = String.valueOf(gc.get(Calendar.HOUR_OF_DAY));
//			String second = String.valueOf(gc.get(Calendar.SECOND));
//			String payway = (String) request.getAttribute("payway");
//			HttpSession session = request.getSession(false);
//			User user = (User) session.getAttribute("user");
//			ShopCart sc = (ShopCart) session.getAttribute("sc");
//			
//			OrderService os = new OrderServiceImpl();
//			Order order = new Order();
//			order.setPayway(payway);
//			order.setCreatedate(new Date(new Long(1111111)));
//			order.setOrdername("CCS"+year+month+day+hour+second);
//			order.setStateid("待处理");
//			order.setCost(sc.getCost());
//			
//			
//			os.addOrder(order,user.getId());
//			
//			
//			ServletContext context = this.getServletContext();
//			//创建请求转发器
//			RequestDispatcher dispatcher = context.getRequestDispatcher("/test/order/orderlist.do");
//			//转发
//			dispatcher.forward(request, response);
//		}
	}
	public void doPost(HttpServletRequest request,HttpServletResponse response) throws ServletException,IOException{
		doGet(request,response);
	}
}