UserController, View 페이지 기본설정

menu.jsp에서

<ul class="navbar-nav ml-auto">
      <li class="nav-item">
        <a href="${root }user/login" class="nav-link">로그인</a>
      </li>
      <li class="nav-item">
        <a href="${root }user/join" class="nav-link">회원가입</a>
      </li>
      <li class="nav-item">
        <a href="${root }user/modify" class="nav-link">정보수정</a>
      </li>
      <li class="nav-item">
        <a href="${root }user/logout" class="nav-link">로그아웃</a>
      </li>
    </ul>

UserController.java

@Controller
@RequestMapping("/user")
public class UserController {

	@GetMapping("/login")
	public String login() {
		return "user/login";
	}

	@GetMapping("/join")
	public String join() {
		return "user/join";
	}

	@GetMapping("/modify")
	public String modify() {
		return "user/modify";
	}

	@GetMapping("/logout")
	public String logout() {
		return "user/logout";
	}

}