스프링 로그인(쿠키, 세션)

로그인 컨트롤러

import hello.login.domain.login.LoginService;
import hello.login.domain.member.Member;
import hello.login.web.SessionConst;
import hello.login.web.session.SessionManager;
import lombok.RequiredArgsConstructor;
import lombok.extern.slf4j.Slf4j;
import org.springframework.stereotype.Controller;
import org.springframework.validation.BindingResult;
import org.springframework.validation.annotation.Validated;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.ModelAttribute;
import org.springframework.web.bind.annotation.PostMapping;

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

@Slf4j
@Controller
@RequiredArgsConstructor
public class LoginController {
    private final LoginService loginService;
    private final SessionManager sessionManager;
    @GetMapping("/login")
    public String loginForm(@ModelAttribute("loginForm") LoginForm form) {
        return "login/loginForm";
    }




    @PostMapping("/login")
    public String loginV3(@Validated @ModelAttribute LoginForm form, BindingResult bindingResult, HttpServletRequest request) {
        if (bindingResult.hasErrors()) {
            return "login/loginForm";
        }

        Member loginMember = loginService.login(form.getLoginId(), form.getPassword());
        if (loginMember == null) {
            bindingResult.reject("loginFail","아이디 또는 비밀번호가 맞지 않습니다.");
            return "login/loginForm";
        }

        // 로그인 성공 처리
        // 세션이 있으면 있는 세션 반환 , 없으면 세션을 생성
        HttpSession session = request.getSession();

        // 세션에 로그인 회웑 정보 보관
        session.setAttribute(SessionConst.LOGIN_MEMBER,loginMember);


        return "redirect:/";
    }


    @PostMapping("/logout")
    public String logoutV3(HttpServletRequest request) {
        HttpSession session = request.getSession(false);
        if (session != null) {
            session.invalidate();
        }
        return "redirect:/";
    }

}

 

홈 컨트롤러

package hello.login.web;

import hello.login.domain.member.Member;
import hello.login.domain.member.MemberRepository;
import hello.login.web.session.SessionManager;
import lombok.RequiredArgsConstructor;
import lombok.extern.slf4j.Slf4j;
import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.web.bind.annotation.CookieValue;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.SessionAttribute;

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

@Slf4j
@Controller
@RequiredArgsConstructor
public class HomeController {

    private final MemberRepository memberRepository;
    private final SessionManager sessionManager;
//    @GetMapping("/")
    public String home() {
        return "home";
    }



    @GetMapping("/")
    public String homeLoginV3Spring(@SessionAttribute(name = SessionConst.LOGIN_MEMBER,required = false)Member loginMember, Model model){
        if (loginMember == null) {
            return "home";
        }

        // 세션이 유지되면 로그인으로 이동동
        model.addAttribute("member", loginMember);
        return "loginHome";
    }
}