updatesetting.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.SettingDBAccess;
import bbs.bean.BbsSetting;

public class UpdateSetting
    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);
    //获得论坛的基本信息
    String id = request.getParameter("setid");
    String name = request.getParameter("bbsname");
    String txtone = request.getParameter("mytextarea1");
    String txttwo = request.getParameter("mytextarea2");

    try {
      int sid = Integer.parseInt(id);
      SettingDBAccess mydb = new SettingDBAccess();
      BbsSetting set = new BbsSetting();
      set.setSname(name);
      set.setSsynopsis(txtone);
      set.setSad(txttwo);
      set.setSid(sid);
      //判断修改是否成功
      if (mydb.update(set)>0) {
        request.getRequestDispatcher("settingservlet").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() {
  }
}