package com.chen.news.control;

import java.io.IOException;

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

import org.springframework.context.ApplicationContext;
import org.springframework.context.support.ClassPathXmlApplicationContext;

import com.chen.news.model.News;
import com.chen.news.service.NewsService;

/**
 * Servlet implementation class ShowNews
 */
@WebServlet("/ShowNews")
public class ShowNews extends HttpServlet {
	private static final long serialVersionUID = 1L;
       
    /**
     * @see HttpServlet#HttpServlet()
     */
    public ShowNews() {
        super();
        // TODO Auto-generated constructor stub
    }

	/**
	 * @see HttpServlet#doGet(HttpServletRequest request, HttpServletResponse response)
	 */
	protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
		// TODO Auto-generated method stub
		doPost(request, response);
	}

	/**
	 * @see HttpServlet#doPost(HttpServletRequest request, HttpServletResponse response)
	 */
	protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
		// TODO Auto-generated method stub
		request.setCharacterEncoding("UTF-8");
		response.setContentType("text/html; charset=UTF-8");
		ApplicationContext ac = new ClassPathXmlApplicationContext("applicationContext.xml");
		NewsService newsService = (NewsService) ac.getBean("NewsService");

		String newsId = (String)request.getParameter("newsId");
		request.getSession().setAttribute("newsId", newsId);
		int id = Integer.parseInt(newsId);
	//	System.out.println("编号:"+newsId);
		//点击量+1
		News oldNews = newsService.getNews(id);
		int click = Integer.parseInt(oldNews.getClick());
		oldNews.setClick(click+1+"");
		newsService.updateNews(oldNews);
		
		//创建session用来保存当前点击新闻编号
		request.getSession().setAttribute("click", id);
		response.sendRedirect("/jspNews/NewsContent.jsp");
	}

}