Spring Security JWT 6 : 회원가입 로직 구현

회원가입 로직

JoinDTO

• JoinDTO

package com.example.springjwt.dto;

import lombok.Getter;
import lombok.Setter;

@Setter
@Getter
public class JoinDTO {

    private String username;
    private String password;
}

---

JoinController

• joinController

package com.example.springjwt.controller;

import com.example.springjwt.dto.JoinDTO;
import com.example.springjwt.service.JoinService;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.ResponseBody;

@Controller
@ResponseBody
public class JoinController {

    private final JoinService joinService;

    public JoinController(JoinService joinService) {

        this.joinService = joinService;
    }

    @PostMapping("/join")
    public String joinProcess(JoinDTO joinDTO) {

        joinService.joinProcess(joinDTO);
        return "ok";
    }
}

---

JoinService

• JoinService

package com.example.springjwt.service;

import com.example.springjwt.dto.JoinDTO;
import com.example.springjwt.entity.UserEntity;
import com.example.springjwt.repository.UserRepository;
import org.springframework.security.crypto.bcrypt.BCryptPasswordEncoder;
import org.springframework.stereotype.Service;

@Service
public class JoinService {

    private final UserRepository userRepository;
    private final BCryptPasswordEncoder bCryptPasswordEncoder;

    public JoinService(UserRepository userRepository, BCryptPasswordEncoder bCryptPasswordEncoder) {

        this.userRepository = userRepository;
        this.bCryptPasswordEncoder = bCryptPasswordEncoder;
    }
    public void joinProcess(JoinDTO joinDTO) {

        String username = joinDTO.getUsername();
        String password = joinDTO.getPassword();

        Boolean isExist = userRepository.existsByUsername(username);

        if (isExist) {

            return;
        }

        UserEntity data = new UserEntity();

        data.setUsername(username);
        data.setPassword(bCryptPasswordEncoder.encode(password));
        data.setRole("ROLE_ADMIN");

        userRepository.save(data);
    }
}

---

UserRepository

• UserRepository

package com.example.springjwt.repository;

import com.example.springjwt.entity.UserEntity;
import org.springframework.data.jpa.repository.JpaRepository;

public interface UserRepository extends JpaRepository<UserEntity, Integer> {

    Boolean existsByUsername(String username);
}

---

실행

• 1. http://localhost:8080/join 으로 POST 요청

• 2. DB에 데이터 save 됐는 지 확인.

참고

https://www.devyummi.com/page?id=668d525886d3d643f4c18ba0

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