orderservlet.java

该项目为网上书店

package org.myrose.servlet;

import java.io.IOException;
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 org.myrose.beans.Order;
import org.myrose.beans.OrderDetail;
import org.myrose.beans.VOrderDetail;
import org.myrose.dao.OrderDAO;
import org.myrose.dao.OrderDetailDAO;
import org.myrose.dao.VOrderDetailDAO;

public class OrderServlet extends HttpServlet {

	/**
	 * Constructor of the object.
	 */
	public OrderServlet() {
		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>
	 *
	 * 此方法用来查看定单
	 * 
	 * @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");
		String orderid = request.getParameter("orderid");
		if(orderid != null){
			this.doPost(request, response);
			return ;
		}
		HttpSession session = request.getSession();
		Object username = session.getAttribute("username");
		
		if(username == null || username.equals("")){
			response.sendRedirect("ordersearch.jsp");
			return;
		}
		
		OrderDAO orderDAO = new OrderDAO();
		Order order = new Order();
		
		order.setUsername(username.toString());
		
		List list = null;
		try {
			list = orderDAO.getOrderByName(order);
		} catch (Exception e) {
			e.printStackTrace();
		}
		
		request.setAttribute("list", list);
		request.getRequestDispatcher("ordersearch.jsp").forward(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;charset=GBK");
		request.setCharacterEncoding("GBK");
		int orderid = Integer.parseInt(request.getParameter("orderid"));
		
		OrderDAO orderDAO = new OrderDAO();
		VOrderDetailDAO vodDAO = new VOrderDetailDAO();
		
		Order order = new Order();
		VOrderDetail vod = new VOrderDetail();
		order.setOrderId(orderid);
		vod.setOrderId(orderid);
		
		List vodlist = null;
		
		try {
			order = orderDAO.getOrderById(order);
			vodlist = vodDAO.getVOrderDetail(vod);
		} catch (Exception e) {
			e.printStackTrace();
		}
		
		request.setAttribute("order", order);
		request.setAttribute("vodlist", vodlist);
		request.getRequestDispatcher("ordersearch_detail.jsp").forward(request, response);
		
	}

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

}