stat.java

功能描述 1） 后台：管理员负责对整个论坛进行管理

package bbs.servlet;

import javax.servlet.*;
import javax.servlet.http.*;
import java.io.*;
import java.util.*;
import bbs.db.StatDB;

public class Stat
    extends HttpServlet {
  private static final String CONTENT_TYPE = "text/html; charset=GBK";

  //Initialize global variables
  public void init() throws ServletException {
  }

  //Process the HTTP Get request
  public void doGet(HttpServletRequest request, HttpServletResponse response) throws
      ServletException, IOException {
    response.setContentType(CONTENT_TYPE);
    PrintWriter out = response.getWriter();
    HttpSession session = request.getSession();
    //从数据库获得论坛信息
    String index = request.getParameter("index");
    try{
      StatDB db = new StatDB();
      session.setAttribute("alluser",""+db.selectUsers());
      session.setAttribute("alladmin",""+db.selectAllAdmin());
      session.setAttribute("allsection",""+db.selectAllSections());
      session.setAttribute("alltopic",""+db.selectAllTopic());
      session.setAttribute("alldaytopic",""+db.selectDayTopic());
      session.setAttribute("allnewuser",db.selectNewUsers());
      session.setAttribute("allnotopicuser",""+db.selectNoTopicUsers());
      session.setAttribute("popsection",""+db.selectPopSections());
      session.setAttribute("staruser",""+db.selectStarSection());
      session.setAttribute("alltopicuser",""+db.selectTopicUsers());
      if(Integer.parseInt(index)==2){
        request.getRequestDispatcher("stat.jsp").forward(request, response);
      }
      else{
        request.getRequestDispatcher("top.jsp").forward(request, response);
      }
    }
    catch(Exception ex){
      ex.printStackTrace();
      request.setAttribute("message", ex.toString());
      request.getRequestDispatcher("error.jsp").forward(request, response);
    }
    out.close();
  }

  //Process the HTTP Post request
  public void doPost(HttpServletRequest request, HttpServletResponse response) throws
      ServletException, IOException {
    doGet(request, response);
  }

  //Clean up resources
  public void destroy() {
  }
}