cartorderservlet.java

该项目为网上书店

package org.myrose.servlet;

import java.io.IOException;
import java.io.PrintWriter;
import java.util.Vector;

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 org.myrose.beans.BookCart;
import org.myrose.beans.Member;
import org.myrose.beans.Order;
import org.myrose.beans.OrderDetail;
import org.myrose.beans.Rebate;
import org.myrose.beans.VMember;
import org.myrose.dao.MemberDAO;
import org.myrose.dao.OrderDAO;
import org.myrose.dao.OrderDetailDAO;
import org.myrose.dao.RebateDAO;
import org.myrose.dao.VMemberDAO;

public class CartOrderServlet extends HttpServlet {

	/**
	 * Constructor of the object.
	 */
	public CartOrderServlet() {
		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 {
		response.setContentType("text/html;charset=GBK");
		request.setCharacterEncoding("GBK");
		
	}

	/**
	 * The doPost method of the servlet. <br>
	 *
	 * 此方法用来生成定单操作
	 * 
	 * 1 插入定单主表数据
	 * 2 插入定单明细数据
	 * 3 更新会员信息
	 * 4 更新会员等级
	 * 
	 * @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;charset=GBK");
		request.setCharacterEncoding("GBK");
		String username=request.getParameter("username");
		String truename=request.getParameter("truename");
		String address=request.getParameter("address");
		String postcode=request.getParameter("postcode");
		String tel=request.getParameter("tel");
		String pay=request.getParameter("pay");	
		String carry=request.getParameter("carry");
		String email=request.getParameter("email");
		String bz=request.getParameter("bz");
		
		HttpSession session = request.getSession();
		
		VMemberDAO vmdao = new VMemberDAO();
		MemberDAO mdao = new MemberDAO();
		OrderDAO orderDAO = new OrderDAO();
		OrderDetailDAO orderDetailDAO = new OrderDetailDAO();
		RebateDAO rdao = new RebateDAO();
		
		VMember vm = new VMember();
		Order order = new Order();
		OrderDetail orderDetail = new OrderDetail();
		Member m = new Member();
		Rebate r = new Rebate();
		
		vm.setUsername(username);
		
		double rebate = 1;
		
		try {
			vm = vmdao.getVMemberByName(vm);
		} catch (Exception e) {
			e.printStackTrace();
		}
		if(vm != null){
			rebate = vm.getRebate();
		}
		Vector cart = (Vector)session.getAttribute("cart");
		int orderId = 0;
		int temp = 0;
		String grade = "0";
		
		double price = 0;
		double sum = 0;
		double totalsum = 0;
		double amount = 0;
		boolean flag = true;

		int bnumber = cart.size();
		order.setBnumber(bnumber);
		order.setUsername(username);
		order.setTruename(truename);
		order.setAddress(address);
		order.setPostcode(postcode);
		order.setTel(tel);
		order.setEmail(email);
		order.setPay(pay);
		order.setCarry(carry);
		order.setRebate(rebate);
		order.setBz(bz);
		try {
			temp = orderDAO.addOrder(order).intValue();
			//System.out.println(temp);
		} catch (Exception e) {
			e.printStackTrace();
		}
		if(temp == 0){
			flag = false;
		}else{
			orderId = temp;
		}
		for(int i = 0;i < cart.size(); i++){
			BookCart bookcart = (BookCart)cart.elementAt(i);
			price = bookcart.getPrice()*rebate;
			orderDetail.setOrderId(orderId);
			orderDetail.setIsbn(bookcart.getIsbn());
			orderDetail.setPrice(price);
			orderDetail.setNumber(bookcart.getNum());
			sum = price*bookcart.getNum();
			totalsum = totalsum+sum;
			try {
				temp = orderDetailDAO.addOrderDetail(orderDetail).intValue();
			} catch (Exception e) {
				e.printStackTrace();
			}
			if(temp == 0){
				flag = false;
			}
		}
		m.setAmount(totalsum);
		m.setUsername(username);
		try {
			temp = mdao.updateAmount(m);
		} catch (Exception e) {
			e.printStackTrace();
		}
		if(temp == 0){
			flag = false;
		}
		try {
			m = mdao.findMemberByNamePass(username, null);
		} catch (Exception e) {
			e.printStackTrace();
		}
		amount = m.getAmount();
		r.setAmount(amount);
		try {
			r = rdao.getRebate(r);
		} catch (Exception e) {
			e.printStackTrace();
		}
		grade = r.getGrade();
		m.setGrade(Integer.parseInt(grade));
		try {
			temp = mdao.updateGrade(m);
		} catch (Exception e) {
			e.printStackTrace();
		}
		if(temp == 0){
			flag = false;
		}
		if(flag){
			session.removeAttribute("cart");
			request.setAttribute("order", "ok");
			request.setAttribute("orderId", ""+orderId);
			request.getRequestDispatcher("index.aspx").forward(request, response);
		}else{
			request.setAttribute("order", "no");
			request.getRequestDispatcher("cart_checkout.jsp").forward(request, response);
		}
	}

	/**
	 * Initialization of the servlet. <br>
	 *
	 * @throws ServletException if an error occure
	 */
	public void init() throws ServletException {
		// Put your code here
	}

}