passservlet.java

基于JSP的航空机票订票系统

package com.servlet;

import com.dao.User;
import com.dao.UserDao;
import com.test.JDBconne;
import java.io.*;
import java.sql.Connection;

import javax.servlet.*;
import javax.servlet.http.*;

public class PassServlet extends HttpServlet 
{
        private Connection connection;
       public void init() throws ServletException
       {
           super.init();
                   //获得数据库连接 
           connection=JDBconne.getConnetion();
       }
       public void destroy()
       {
        super.destroy();
               //关闭数据库连接 
        JDBconne.closeConnection();
       }
   
  
    protected void doGet(HttpServletRequest request, HttpServletResponse response)
    throws ServletException, IOException 
    {
        doPost(request, response);
    }
    
    
    protected void doPost(HttpServletRequest request, HttpServletResponse response)
    throws ServletException, IOException
    {
       
       
       // 从Session 中获得该客户的用户名
            String username=(String)request.getSession().getAttribute("username");
            UserDao userDao=new UserDao();
            //获得用户注册信息
            User user=userDao.getUser(connection,username);
           String pass=user.getPassword();
           String passed=request.getParameter("Password");
           String pass1=request.getParameter("Password1");
           // 根据界面输入的密码与用户的密码进行比较
           if(pass.equals(passed))
           {
               //如果两者值相等 
               //UpdatePass 进行密码修改操作
               int value=userDao.UpdatePass(connection,pass1,username);
               if(value>0)
               {
                    request.getRequestDispatcher("amendsucceed.jsp").forward(request,response);
               }
               else
               {
                    request.getRequestDispatcher("amendfail.jsp").forward(request,response);
               }
              
           }
           else
           {
               //如果密码不相等
              request.getRequestDispatcher("amenderror.jsp").forward(request,response);
           }
  
        }
}