Merge pull request #26 from Likelion-Inner-Join/feat/userSignUp

Feat: 지원자 회원가입 구현

src/main/java/com/likelion/innerjoin/user/controller/ApplicantController.java

@@ -0,0 +1,32 @@
+package com.likelion.innerjoin.user.controller;
+
+import com.likelion.innerjoin.common.response.CommonResponse;
+import com.likelion.innerjoin.user.model.dto.request.ApplicantSignUpRequestDto;
+import com.likelion.innerjoin.user.service.ApplicantService;
+import io.swagger.v3.oas.annotations.Operation;
+import lombok.RequiredArgsConstructor;
+import org.springframework.http.HttpStatus;
+import org.springframework.http.ResponseEntity;
+import org.springframework.web.bind.annotation.*;
+
+@RestController
+@RequestMapping("/user")
+@RequiredArgsConstructor
+public class ApplicantController {
+
+    private final ApplicantService applicantService;
+
+    /**
+     * 지원자 회원가입
+     *
+     * @param requestDto 지원자 회원가입 요청 DTO
+     * @return CommonResponse
+     */
+    @Operation(summary = "지원자 회원가입 API", description = "지원자 회원가입")
+    @PostMapping("/signup")
+    public ResponseEntity<CommonResponse<String>> signUpApplicant(@RequestBody ApplicantSignUpRequestDto requestDto) {
+        applicantService.signUpApplicant(requestDto);
+        return ResponseEntity.status(HttpStatus.CREATED)
+                .body(new CommonResponse<>("회원가입이 완료되었습니다."));
+    }
+}

src/main/java/com/likelion/innerjoin/user/model/dto/request/ApplicantSignUpRequestDto.java

@@ -0,0 +1,14 @@
+package com.likelion.innerjoin.user.model.dto.request;
+
+import lombok.Data;
+
+@Data
+public class ApplicantSignUpRequestDto {
+    private String email;
+    private String password;
+    private String name;
+    private String school;
+    private String major;
+    private String studentNumber;
+    private String phoneNum;
+}

src/main/java/com/likelion/innerjoin/user/repository/ApplicantRepository.java

@@ -1,8 +1,12 @@
 package com.likelion.innerjoin.user.repository;
 
 import com.likelion.innerjoin.user.model.entity.Applicant;
+import com.likelion.innerjoin.user.model.entity.Club;
 import org.springframework.data.jpa.repository.JpaRepository;
 
+import java.util.Optional;
+
 public interface ApplicantRepository extends JpaRepository<Applicant, Long> {
     Applicant findByEmailAndPassword(String email, String password);
+    Optional<Applicant> findByEmail(String email);
 }

src/main/java/com/likelion/innerjoin/user/service/ApplicantService.java

@@ -0,0 +1,48 @@
+package com.likelion.innerjoin.user.service;
+
+import com.likelion.innerjoin.common.response.CommonResponse;
+import com.likelion.innerjoin.user.exception.EmailValidationException;
+import com.likelion.innerjoin.user.exception.SignUpIDException;
+import com.likelion.innerjoin.user.model.dto.request.ApplicantSignUpRequestDto;
+import com.likelion.innerjoin.user.model.entity.Applicant;
+import com.likelion.innerjoin.user.repository.ApplicantRepository;
+import lombok.RequiredArgsConstructor;
+import org.springframework.stereotype.Service;
+import org.springframework.transaction.annotation.Transactional;
+
+@Service
+@RequiredArgsConstructor
+public class ApplicantService {
+
+    private final ApplicantRepository applicantRepository;
+
+    /**
+     * 지원자 회원가입
+     *
+     * @param requestDto 지원자 회원가입 요청 DTO
+     */
+    @Transactional
+    public void signUpApplicant(ApplicantSignUpRequestDto requestDto) {
+        String email = requestDto.getEmail();
+        // 이메일 입력 형식 체크
+        if (email == null || !email.matches("^[A-Za-z0-9._%+-]+@[A-Za-z0-9.-]+\\.[A-Za-z]{2,}$")) {
+            throw new EmailValidationException("이메일 형식이 잘못되었습니다.");
+        }
+        // 이메일 중복 체크
+        if (applicantRepository.findByEmail(requestDto.getEmail()).isPresent()) {
+            throw new EmailValidationException("이미 존재하는 이메일입니다.");
+        }
+        // Applicant 엔티티 생성 및 저장
+        Applicant applicant = Applicant.builder()
+                .email(requestDto.getEmail())
+                .password(requestDto.getPassword())
+                .name(requestDto.getName())
+                .school(requestDto.getSchool())
+                .major(requestDto.getMajor())
+                .studentNumber(requestDto.getStudentNumber())
+                .phoneNum(requestDto.getPhoneNum())
+                .build();
+
+        applicantRepository.save(applicant);
+    }
+}