saveordersservlet.java

使用jsp+Servlet,采用MVC模式,实现了一典型小型电子商务网站的全过程.包括前台和后台的全部功能.适合于初学者学习使用.

package com.eshop.servlet;

import java.io.IOException;
import java.io.PrintWriter;
import java.sql.SQLException;
import java.util.Iterator;
import java.util.Map;

import javax.servlet.RequestDispatcher;
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.eshop.form.NewOrderForm;
import com.eshop.service.CartService;
import com.eshop.service.OrderService;
import com.eshop.vo.CartItem;

public class SaveOrdersServlet extends HttpServlet {

	/**
	 * Constructor of the object.
	 */
	public SaveOrdersServlet() {
		super();
	}

	/**
	 * Destruction of the servlet. <br>
	 */
	public void destroy() {
		super.destroy(); // Just puts "destroy" string in log
		// Put your code here
	}

	/**
	 * The doGet method of the servlet. <br>
	 *
	 * This method is called when a form has its tag value method equals to get.
	 * 
	 * @param request the request send by the client to the server
	 * @param response the response send by the server to the client
	 * @throws ServletException if an error occurred
	 * @throws IOException if an error occurred
	 */
	public void doGet(HttpServletRequest request, HttpServletResponse response)
			throws ServletException, IOException {

		doPost(request,response);
	}

	/**
	 * The doPost method of the servlet. <br>
	 *
	 * This method is called when a form has its tag value method equals to post.
	 * 
	 * @param request the request send by the client to the server
	 * @param response the response send by the server to the client
	 * @throws ServletException if an error occurred
	 * @throws IOException if an error occurred
	 */
	public void doPost(HttpServletRequest request, HttpServletResponse response)
			throws ServletException, IOException {

		response.setContentType("text/html");
		request.setCharacterEncoding("gbk");
		boolean success=false;
		String credit="creditCart";
		HttpSession session=request.getSession();
		NewOrderForm newOrderForm=new NewOrderForm();
		newOrderForm.setShiptoname(request.getParameter("shiptoname"));
		String userid=(String)session.getAttribute("userid");
		newOrderForm.setUserid(userid);
		newOrderForm.setShipaddr1(request.getParameter("shipaddr1"));
		newOrderForm.setShipaddr2(request.getParameter("shipaddr2"));
		newOrderForm.setShipcity(request.getParameter("shipcity"));
		newOrderForm.setShipcountry(request.getParameter("shipcountry"));
		newOrderForm.setShipstate(request.getParameter("shipstate"));
		newOrderForm.setShipzip(request.getParameter("shipzip"));
		String paytype=request.getParameter("paytype");
		newOrderForm.setPaytype(paytype);		
		CartService cartService=(CartService)session.getAttribute("cartService");
		if(!cartService.equals(null)){
		newOrderForm.setTotalprice(cartService.getSubTotal().floatValue());
		}
		Map shopCartMap=cartService.getShopCart();
		newOrderForm.setShoppingCartMap(shopCartMap);		
		OrderService orderService=new OrderService();
			try {
				success=orderService.saveOrders(newOrderForm);
				if (success){
					if(paytype.equals(credit)){
					request.setAttribute("paytype", paytype);
					RequestDispatcher requestDisptcher=request.getRequestDispatcher("inputBillInfo.jsp");
					requestDisptcher.forward(request, response);
					}else{
						RequestDispatcher requestDisptcher=request.getRequestDispatcher("viewOrder");
						requestDisptcher.forward(request, response);
					}
				}
			} catch (SQLException e) {
				// TODO Auto-generated catch block
				e.printStackTrace();
			}
	}
	/**
	 * Initialization of the servlet. <br>
	 *
	 * @throws ServletException if an error occure
	 */
	public void init() throws ServletException {
		// Put your code here
	}

}