resortservlet.java

旅馆预订系统.采用jstl+oracle,jsp/servlet,,供初学者学习用.

package com.night.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 com.night.DAO.*;
import com.night.DAO.Impl.*;
import com.night.Factory.*;

public class ResortServlet extends HttpServlet {

	protected void doGet(HttpServletRequest request,
			HttpServletResponse response) throws ServletException, IOException {

		String action = request.getParameter("action");
		if(action==null) return;
		if(action.equals("insert")){
			insertResort(request,response);
		}else if(action.equals("update")){
			
		}else if(action.equals("list")){
			listResorts(request,response);
		}
	}

	protected void doPost(HttpServletRequest request,
			HttpServletResponse response) throws ServletException, IOException {
		doGet(request, response);
	}
	
	private void insertResort(HttpServletRequest request,HttpServletResponse response){
		
		String resortname = request.getParameter("resortname").trim();
		String city = request.getParameter("city").trim();
		int ccount = Integer.parseInt(request.getParameter("ccount").trim());
		int cprice = Integer.parseInt(request.getParameter("cprice").trim());
		ResortDAO dao = Factory.getResortDAOInstance();
		dao.insertResort(resortname, city, ccount,cprice);
		try {
			request.getRequestDispatcher("/ResortServlet?action=list").forward(request, response);
		} catch (Exception e) {
			e.printStackTrace();
		}
	}
	
	private void listResorts(HttpServletRequest request,
			HttpServletResponse response) {
		ResortDAO dao = Factory.getResortDAOInstance();
		List list = dao.showResort();
		System.out.println(list);
		request.setAttribute("resorts", list);
		try {
			request.getRequestDispatcher("/resort_insert.jsp").forward(request,
					response);
		} catch (Exception e) {
			e.printStackTrace();
		}

	}


}