updatehouse.java

利用java编写的一个学生宿舍管理系统

/**
 * UpdateHouse.java
 * author:liuhaijing
 * @version 1.0
 */
 
 package mydesign;//包名

import java.io.*;
import mydesign.*;
import java.util.*;
import javax.servlet.*;
import javax.servlet.http.*;

public class UpdateHouse extends HttpServlet
{
  
    //Initialize global variables
    public void init() throws ServletException 
    {
    }
    
    //Process the HTTP Post request
    public void doPost(HttpServletRequest request, HttpServletResponse response)
    throws ServletException, IOException 
    {
    	HttpSession session=request.getSession(true);
        request.setCharacterEncoding("gb2312");
        response.setContentType("text/html; charset=gb2312");
        PrintWriter out = response.getWriter();
        
        House house=(House)session.getAttribute("house");
        HouseControl housecontrol=new HouseControl();
        
        String sex=request.getParameter("sex");
        String phone=request.getParameter("phone");
        String kezhu=request.getParameter("kezhu");;
        String expense=request.getParameter("expense");
        String extra=request.getParameter("extra");

      
		//处理数据
        try
        {
        	session.setAttribute("house",null);
        	if((!house.getSex().equals(sex))&&(house.getRuzhu()>0))
        	{
        		out.print("<script>alert('已有学生入住，入住性别禁止修改！');window.location.href='/MyDesign/SearchHouse'</script>");
        	}else{
        		house.setSex(sex);
        		house.setPhone(phone);
        		house.setKezhu(kezhu);
        		house.setExpense(expense);
        		house.setExtra(extra);
        		housecontrol.UpdateHouse(house);
        		housecontrol.close();
        		out.print("<script>alert('成功修改！');window.location.href='/MyDesign/SearchHouse'</script>");
        	}
        }
        catch(Exception e)
        {
            System.out.print("UpdateHouseServlet error:"+e.getMessage());            
        }
        finally
        {  
        }
    }
    
    //Clean up resources
    public void destroy()
    {
    }
}