updatekinds.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;

//updatekinds
import javax.servlet.*;
import javax.servlet.http.*;
import java.io.*;
import java.util.*;
import bbs.db.KindDBAccess;
import bbs.bean.BbsKinds;
import bbs.bean.BbsSection;

public class UpdateKinds
    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);
    //获得版块信息
    String id = request.getParameter("kindid");
    String name = request.getParameter("kindname1");
    //获得当前系统时间
    Calendar cd = Calendar.getInstance();
    String year = cd.get(Calendar.YEAR)+"";
    String month = (cd.get(Calendar.MONTH)+1)+"";
    String day = cd.get(Calendar.DAY_OF_MONTH)+"";

    String hour = cd.get(Calendar.HOUR_OF_DAY)+"";
    String minute = cd.get(Calendar.MINUTE)+"";
    String second = cd.get(Calendar.SECOND)+"";
    String time = year + "-" + month + "-" + day + " " + hour + ":" + minute +
        ":" + second;
    System.out.println("当前系统时间======================" + time);
    String str = request.getParameter("menuid");
    System.out.println("str=="+str);

    try {
      //对两个版块进行修改和判断
      if(str != null){
        KindDBAccess db = new KindDBAccess();
        int kindid = Integer.parseInt(id);
        if(str.toString().equals("0")) {//一级菜单修改
          System.out.println("=========================" + id);
          BbsKinds kinds = new BbsKinds();
          kinds.setKid(kindid);
          kinds.setKname(name);
          kinds.setKdate(time);
          System.out.println("=============================OK1");
          if (db.update(kinds) > 0) {
            request.getRequestDispatcher("showkinds").forward(request, response);
            System.out.println("=============================OK2");
            return;
          }
          else {
            request.setAttribute("message", "修改失败！");
            request.getRequestDispatcher("error.jsp").forward(request, response);
            return;
          }
        }else{//二级菜单修改
          BbsSection section = new BbsSection();
          section.setSname(name);
          section.setKdate(time);
          section.setSid(kindid);
          System.out.println("sid="+kindid);
          if (db.updateSection(section) > 0) {
            request.getRequestDispatcher("showkinds").forward(request, response);
            System.out.println("=============================OK2");
            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() {
  }
}