package com.axbbs.bo;
import java.io.IOException;
import java.io.PrintWriter;
import java.util.ArrayList;

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 com.axbbs.Dao.GetPostListDAO;
import com.axbbs.po.PostPo;

/**
* @程序编写 阿汐
* @版本 1.0
* @说明 仿wc的jsp版本小论坛
* @本模块是用于获取帖子列表信息的Servlet类
* @并且功能并不需要太多，因此本版本没有采用传统意义上的MVC开发模式，而是针对
* @vo,bo类进行了精简，用po类来共用vo类,用servlet类来共用bo类,很奇怪的开发模式
* @日期 2008.09.01
*
*/
public class GetPostsList extends HttpServlet {

    /**
  * Constructor of the object.
  */
    public GetPostsList() {
  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");
  PrintWriter out = response.getWriter();
  //创建一个集合，用来存储帖子列表的各种信息
  ArrayList list = new ArrayList();
  //创建DAO对象
  GetPostListDAO gpld = new GetPostListDAO();
  //将DAO执行的ViewList方法所返回的帖子列表信息赋值给list 集合对象
  list=gpld.ViewList();
  //创建session对象以期将帖子列表信息在页面上显示
  HttpSession session = request.getSession();
  //设置session viewlist的属性为list对象
  session.setAttribute("viewList", list);
  //页面跳转到menu.jsp，也就是帖子列表显示的页面
  response.sendRedirect("menu.jsp");
  out.flush();
  out.close();
    }

    /**
  * 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 {
      doGet(request, response);
    }

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

}