addtopic.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.BbsTopic;
import bbs.db.TopicDB;

public class AddTopic
    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();
    //获得版块的相关属性
    String sectionid = request.getParameter("sectionid");
    String name = request.getParameter("usernmae");
    String subject = request.getParameter("subject");
    String content = request.getParameter("contents");
    String uname = request.getParameter("uname");
    String kname = request.getParameter("kname");
    String topicuser = request.getParameter("topicuser");
    //获取当前系统时间
    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;
    try{
      BbsTopic obj = new BbsTopic();
      if(name==null || name.equals(""))
      {
        name = "游客";
      }

      obj.setTsid(Integer.parseInt(sectionid));
      obj.setUname(name);
      obj.setTtopic(subject);
      obj.setTcontents(content);
      obj.setTtime(time);
      obj.setTip(request.getRemoteAddr());
      TopicDB db = new TopicDB();

      //判断是否插入成功
      if(db.insert(obj)>0){
        request.setAttribute("sid",sectionid);
        request.setAttribute("s2name",uname);
        request.setAttribute("k2name",kname);
        request.setAttribute("topicuser",topicuser);
          request.getRequestDispatcher("showsection").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() {
  }
}