📂 apiPayload📂 config L SecurityConfig📂 controller L UserController📂 domain L 📂 common L 📂 enums L User📂 dto L 📂 request L LoginDto L 📂 response L LoginResponseDto📂 jwt L JwtFilter L JwtUtil📂 repository L UserRepository📂 service L UserService L UserServiceImpl🐘 build.gradle Spring Security, JWT 사용을 위한 준비 ① build.gradle : Spring Security + Jwt 의존성 추가...