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

public class UpdateFriend
    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);
    //获得右倾链接的属性
    String id = request.getParameter("friendid");
    String name = request.getParameter("friendname1");
    String address = request.getParameter("friendaddress1");
    try{
      int fid = Integer.parseInt(id);
      FriendDBAccess db = new FriendDBAccess();
      BbsFriend friend = new BbsFriend();
      friend.setFid(fid);
      friend.setFname(name);
      friend.setFaddress(address);
      //判断修改是否成功
      if(db.update(friend)>0)
      {
        request.getRequestDispatcher("selectfriend").forward(request,response);
        return;
      }
      else
      {
       request.setAttribute("message", "修改失败！");
       request.getRequestDispatcher("error.jsp").forward(request, response);
       return;

      }
    }catch(Exception ex)
    {
      ex.printStackTrace();
      request.setAttribute("message", "数据库操作发生错误！");
      request.getRequestDispatcher("error.jsp").forward(request, response);
      return;
    }
  }

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

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