showfriend.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;

//showfriend
import javax.servlet.*;
import javax.servlet.http.*;
import java.io.*;
import java.util.*;
import bbs.db.FriendDBAccess;
import bbs.bean.BbsFriend;

public class ShowFriend
    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();
    //分页
    String cpage = request.getParameter("cpage");
    int ccpp;
    if (cpage == null || cpage.equals("")) {
      cpage = "1";
    }
    try
    {
      ccpp = Integer.parseInt(cpage);
      FriendDBAccess db = new FriendDBAccess();
      db.setRows(3);

      ArrayList data = db.select(ccpp);
      int pages = db.getPageCount();

      request.setAttribute("data", data);
      request.setAttribute("cpage", cpage);
      request.setAttribute("pages", pages + "");

      request.getRequestDispatcher("friend.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() {
  }
}