package com.servlet;

import com.dao.UserDao;
import com.dao.UserDaoImpl;
import com.entity.User;

import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;

public class UserQueryByid extends HttpServlet {
    //    添加序列号
    private static final long serialVersionUID = 1L;
    //初始化
    public void init(){
        System.out.println("根据ID查询卡号信息");
    }
    //运行阶段
    public void service(HttpServletRequest request, HttpServletResponse response) {
        response.setContentType("text/json; charset=utf-8");
        try {
            request.setCharacterEncoding("UTF-8");
            String uid = request.getParameter("id");
            int id = Integer.parseInt(uid);
            //通过id查询所有
            UserDao user = new UserDaoImpl();
            User card = user.queryByid(id);
            HttpSession s = request.getSession(true);
            s.setAttribute("card",card);
            request.getRequestDispatcher("/getall").forward(request,response);
        } catch (Exception e1) {
            // TODO Auto-generated catch block
            e1.printStackTrace();
        }

    }
    public void doGet(HttpServletRequest request,HttpServletResponse response){

    }
    public void doPost(HttpServletRequest request,HttpServletResponse response){

    }

    //消亡阶段
    public void destroy(){
        System.out.println("调用destroy");

    }
}