UpdateServlet

package com.neuedu.javaweb.chap02;

import java.io.IOException;

import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;


import com.neuedu.pojo.User;
import com.neuedu.servlet.IUserservlet;
import com.neuedu.servlet.impl.UserservletImpl;

/**
 * Servlet implementation class UpdateServlet
 */
@WebServlet("/updateServlet")
public class UpdateServlet extends HttpServlet {
    private static final long serialVersionUID = 1L;
   
/**
 * @see HttpServlet#HttpServlet()
 */
public UpdateServlet() {
super();
// TODO Auto-generated constructor stub
}

    /**
     * @see HttpServlet#doGet(HttpServletRequest request, HttpServletResponse response)
     */
    protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
        // TODO Auto-generated method stub
        //response.getWriter().append("Served at: ").append(request.getContextPath());
      doPost(request, response);
    }

    /**
     * @see HttpServlet#doPost(HttpServletRequest request, HttpServletResponse response)
     */
    protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
        // TODO Auto-generated method stub
        request.setCharacterEncoding("utf-8");
        response.setCharacterEncoding("utf-8");
        response.setContentType("text/html;charest=UTF-8");
        String  id=request.getParameter("id");
        String name=request.getParameter("username");
        String email=request.getParameter("email");
        String idcard=request.getParameter("idcard");
        
        IUserservlet reg=new UserservletImpl();
        
        User user=new User();
        user.setId(Integer.parseInt(id));
        user.setUsername(name);
        user.setEmail(email);
        user.setIdcard(idcard);
        int i=reg.updateUser(user);
        String resultMsg;
        if(i>0){
            resultMsg="修改成功";
            HttpSession session=request.getSession();
            User sessUser=(User)session.getAttribute("user");
            sessUser.setUsername(name);
            sessUser.setEmail(email);
            sessUser.setIdcard(idcard);
            session.setAttribute("user", sessUser);
            
        }else{
            resultMsg="修改失败";
        }
        request.setAttribute("resultMsg", resultMsg);
        request.getRequestDispatcher("/user/updateMe.jsp").forward(request, response);
    }

}