reqmanage.java

一个小型的BBS系统

package com.servlet;

import java.io.IOException;

import javax.servlet.RequestDispatcher;
import javax.servlet.ServletContext;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.util.*;
import bean.deleteDB.*;
import bean.dbwrite.*;
/**
 * Servlet implementation class for Servlet: ReqManage
 *
 */
 public class ReqManage extends javax.servlet.http.HttpServlet implements javax.servlet.Servlet {
   static final long serialVersionUID = 1L;
   
    /* (non-Java-doc)
	 * @see javax.servlet.http.HttpServlet#HttpServlet()
	 */
	public ReqManage() {
		super();
	}   	
	
	/* (non-Java-doc)
	 * @see javax.servlet.http.HttpServlet#doGet(HttpServletRequest request, HttpServletResponse response)
	 */
	protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
		// TODO Auto-generated method stub
		String action = request.getParameter("action");
		
		String url;
		ServletContext sc = getServletContext();
		if(action.equals("del")){
			String delnum = request.getParameter("delnum");
			String control = request.getParameter("control");
			String state = new String(request.getParameter("state").getBytes("iso-8859-1"),"GB2312");
			String delname = new String(request.getParameter("delname").getBytes("iso-8859-1"),"GB2312");
			DeleteDB ddb = new DeleteDB();
			ddb.DeleteUserDB(delnum);//删除用户
			if(control.equals("1")){
				System.out.println("执行级联删除版主信息,要删的name:"+delname);
				ddb.DeleteState(delname,state); 
			}
			
			url="/ReqServlet?action=usermanage";
			RequestDispatcher rd = sc.getRequestDispatcher(url);
			rd.forward(request, response);
		}
		else if(action.equals("promote")){
			String formstate = new String(request.getParameter("formstate").getBytes("iso-8859-1"),"GB2312");//获取版块ID
			String promotename = new String(request.getParameter("promotename").getBytes("iso-8859-1"),"GB2312");//获取要提升的人名
			DBStateWrite dbsw = new DBStateWrite();
	
			int s = dbsw.DBUpdateState(promotename,formstate);//更新版主
			if(s == 0){
				url="/error_updatestate.jsp";
				RequestDispatcher rd = sc.getRequestDispatcher(url);
				rd.forward(request, response);
			}
			else {
			url="/ReqServlet?action=usermanage";
			RequestDispatcher rd = sc.getRequestDispatcher(url);
			rd.forward(request, response);
			}
		}
		else if(action.equals("undo")){
			String undonum = request.getParameter("undonum");
			String state = new String(request.getParameter("state").getBytes("iso-8859-1"),"GB2312");
			String control = request.getParameter("control");
			String undoname = new String(request.getParameter("undoname").getBytes("iso-8859-1"),"GB2312");
			DeleteDB ddb = new DeleteDB();
			//如果可以撤销 
			if(control.equals("1")){
				ddb.DeleteMaster(undonum);
				System.out.println("执行级联删除版主信息,要删的name:"+undoname);
				ddb.DeleteState(undoname,state);
			}
			
			url="/ReqServlet?action=usermanage";
			RequestDispatcher rd = sc.getRequestDispatcher(url);
			rd.forward(request, response);
		}
	}  	
	
	/* (non-Java-doc)
	 * @see javax.servlet.http.HttpServlet#doPost(HttpServletRequest request, HttpServletResponse response)
	 */
	protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
		// TODO Auto-generated method stub
	}   	  	    
}