chengeservlet.java

jsp+servlet+javaBean实现MVC

package com.wang.servlet;

import javax.servlet.*;
import javax.servlet.http.*;
import java.io.*;
import java.util.*;
import com.wang.bean.*;

public class ChengeServlet
    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
    {
        DataBean db = new DataBean();
        boolean result;
        UserBean ub = (UserBean) request.getSession().getAttribute("user");
        if (ub.getUserPwd().equals(request.getParameter("oldUserPwd")))
        {
            ub.setUserPwd(request.getParameter("newUserPwd"));
            result = db.setUserBean(ub);
        }
        else
        {
            result = false;
        }
        request.setAttribute("chengeresult", result);
        RequestDispatcher rd = request.getRequestDispatcher("chenge.jsp");
        rd.forward(request, response);

    }

    //Process the HTTP Post request
    public void doPost(HttpServletRequest request, HttpServletResponse response)
        throws ServletException, IOException
    {
        doGet(request, response);
    }

    //Clean up resources
    public void destroy()
    {
    }
}