controller/member/Login.java > MODEL2

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package controller.member;

import java.io.IOException;

import java.io.PrintWriter;

import javax.servlet.RequestDispatcher;

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 dao.MemberDAO;

import model.Member;

@WebServlet("/member/login")

public class Login extends HttpServlet {

private static final long serialVersionUID = 1L;

    public Login() {

        super();

    }

protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {

RequestDispatcher dis = request.getRequestDispatcher("login.jsp");

dis.forward(request, response);

}

protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {

request.setCharacterEncoding("utf-8");

String id = request.getParameter("mb_id");

String pass = request.getParameter("mb_password");

MemberDAO dao = new MemberDAO();

int num = dao.loginSelect(id); //아이디 존재여부

//출력 구문

response.setContentType("text/html; charset=utf-8");

PrintWriter out = response.getWriter();

if(num == 1) { //아이디 존재

Member m = dao.loginMemberSelect(id, pass); //회원정보

if(m.getId() != null) { //아이디.비밀번호 매칭 성공

// 세션 생성

HttpSession session = request.getSession();

session.setAttribute("id", m.getId());

session.setAttribute("name", m.getName());

session.setAttribute("level", m.getLevel());

response.sendRedirect("/"); 

}else {

out.print("<script>");

out.print("alert('비밀번호가 틀렸습니다.');");

out.print("history.back();");

out.print("</script>");

}

}else {

out.print("<script>");

out.print("alert('없는 아이디입니다.');");

out.print("history.back();");

out.print("</script>");

}

}

}