汽车租赁管理系统/carRentalSystem/src/com/bluedot/web/carmanagerservlet/UpdateCar.java

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package com.bluedot.web.carmanagerservlet;

import java.io.IOException;
import java.io.PrintWriter;

import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import com.bluedot.common.Constants;
import com.bluedot.domain.Car;
import com.bluedot.domain.Customers;
import com.bluedot.exception.ApplicationException;
import com.bluedot.exception.DataAccessException;
import com.bluedot.service.CarManager;
import com.bluedot.service.CustomerManager;
import com.bluedot.service.impl.CarManagerImpl;
import com.bluedot.service.impl.CustomerManagerImpl;

public class UpdateCar extends HttpServlet {
	public void doGet(HttpServletRequest request, HttpServletResponse response)
			throws ServletException, IOException {
		this.doPost(request, response);
	}

	public void doPost(HttpServletRequest request, HttpServletResponse response)
			throws ServletException, IOException {
		try {
			Car car  = this.createCar(request);
			CarManager cm = new CarManagerImpl();
			cm.updateCar(car);
			response.sendRedirect("ok.jsp");
		}catch(NumberFormatException e){
			String[] arr = e.getMessage().split(":");
			request.setAttribute(Constants.MESSAGE_KEY, "输入内容格式有误，请重新输入。错误提示:["+arr[1]+"]");
			request.getRequestDispatcher("carManager/updateCar.jsp").forward(request, response);
			e.printStackTrace();
		} catch (DataAccessException e) {
			request.setAttribute(Constants.MESSAGE_KEY, e.getMessage());
			request.getRequestDispatcher("error.jsp")
					.forward(request, response);
			e.printStackTrace();
		} catch (ApplicationException e) {
			response.sendRedirect("appError.jsp");
			e.printStackTrace();
		} catch (Exception e) {
			response.sendRedirect("appError.jsp");
			e.printStackTrace();
		}
	}
	private Car createCar(HttpServletRequest request){
		String carNumber = request.getParameter("carNumber");
		String carType = request.getParameter("carType");
		String color = request.getParameter("color");
		String price = request.getParameter("price");
		String rentPrice = request.getParameter("rentPrice");
		String deposit = request.getParameter("deposit");
		String isRenting = request.getParameter("isRenting");
		String cardesc = request.getParameter("cardesc");