showleft.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.bean.*;
import com.db.DBAccess;
import bbs.db.StatDB;

public class ShowLeft
    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();
    //从数据库获得版块信息
    try {
      DBAccess db = new DBAccess();
      ArrayList data = db.selectKind();
      StatDB statdb = new StatDB();
      Pepedom pepedom = statdb.getPepedom();
      HttpSession session = request.getSession();
      session.setAttribute("kind",data);
      request.setAttribute("ksize" , "" + data.size());
      session.setAttribute("pepedom",pepedom);
      request.getRequestDispatcher("left.jsp").forward(request,response);
    }
    catch (Exception ex) {
      ex.printStackTrace();
      request.setAttribute("message", "数据库操作发生错误！");
      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() {
  }
}