updatestudent.java

第一次上传文件还不知道可以不可以, 有什么问题和我联系,有会C++的么想请人教教我 好不好用自己下下来用用不就知道了??? 里面有源码及数据库

/**
 * UpdateStudent.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 UpdateStudent 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();
        
        Student student=(Student)session.getAttribute("student");
        StudentControl studentcontrol=new StudentControl();
        HouseControl housecontrol=new HouseControl();
        House house=new House();
        if(student.getDonghao()!=null) house=housecontrol.getHouseInfo(student.getDonghao(),student.getHouseid());
        
        String name=request.getParameter("name");
        String sex=request.getParameter("sex");
        String home=request.getParameter("home");
        String years=request.getParameter("years");
        String nianzhi=request.getParameter("nianzhi");
        String xueyuan=request.getParameter("xueyuan");
        String classid=request.getParameter("classid");
        String extra=request.getParameter("extra");
      
		//处理数据
        try
        {
        	session.setAttribute("student",null);
        	if((student.getDonghao()!=null)&&(!house.getSex().equals(sex)))
        	{
        		out.print("<script>alert('该学生已经入住，禁止修改性别！');window.location.href='/MyDesign/SearchStudent'</script>");
        	}else{
        		student.setSex(sex);
        		student.setName(name);
        		student.setHome(home);
        		student.setYears(years);
        		student.setNianzhi(nianzhi);
        		student.setXueyuan(xueyuan);
        		student.setClassid(classid);
        		student.setExtra(extra);
        		studentcontrol.UpdateStudent(student);
        		studentcontrol.close();
        		out.print("<script>alert('成功修改！');window.location.href='/MyDesign/SearchStudent'</script>");
        	}
        }
        catch(Exception e)
        {
            System.out.print("UpdateHouseServlet error:"+e.getMessage());            
        }
        finally
        {  
        }
    }
    
    //Clean up resources
    public void destroy()
    {
    }
}