Merge pull request #21 from ywoo-srin-minj/12_srin_delete_user

(#12) 회원 삭제 기능 구현 - 세린

build.gradle

@@ -16,6 +16,7 @@ dependencies {
 	implementation 'org.springframework.boot:spring-boot-starter-validation'
 	compileOnly 'org.projectlombok:lombok'
 	annotationProcessor 'org.projectlombok:lombok:1.18.22'
+	implementation 'org.springframework.boot:spring-boot-starter-validation'
 	implementation 'org.springframework.boot:spring-boot-starter-data-jpa'
 	implementation 'org.springframework.boot:spring-boot-starter-thymeleaf'
 	implementation 'org.springframework.boot:spring-boot-starter-web'

src/main/java/com/second/spring_study/controller/UserSrinController.java

@@ -1,6 +1,7 @@
 package com.second.spring_study.controller;
 
 import com.second.spring_study.dto.request.srin.UserRequestDto;
+import com.second.spring_study.entity.user_srin.UserSrin;
 import com.second.spring_study.service.UserSrinService;
 import lombok.RequiredArgsConstructor;
 import org.springframework.web.bind.annotation.*;
@@ -15,4 +16,9 @@ public class UserSrinController {
     public void createUser(@RequestBody UserRequestDto userRequestDto){
         userSrinService.createUser(userRequestDto);
     }
+
+    @DeleteMapping("/{id}")
+    public void deleteUser(@PathVariable long id){
+        userSrinService.deleteUser(id);
+    }
 }

src/main/java/com/second/spring_study/entity/user_srin/UserSrin.java

@@ -16,7 +16,7 @@
 public class UserSrin {
     @Id //PK지정
     @GeneratedValue(strategy = GenerationType.IDENTITY)     //기본키 생성을 데이터 베이스에 위임(MySQL - Auto_increment를 사용하여 기본키 생성)
-    private int id;
+    private Long id;
 
     //name속성을 명시하지 않으면 칼럼변수의 이름으로 DB에 생성됨(카멜케이스라면 _형식으로 작성하는것이 좋음)
     //현재 칼럼 변수는 _형식이므로 굳이 작성하지 않아도 됨
@@ -37,6 +37,8 @@ public static UserSrin createUser(String user_id, String user_name, String user_
         userSrin.user_password = user_password;
         return userSrin;
     }
+
+
 /*
     //직접 작성(window 단축키 Alt + insert)
     //생성자

src/main/java/com/second/spring_study/entity/user_srin/repository/UserSrinRepository.java

@@ -6,4 +6,7 @@
 
 public interface UserSrinRepository extends CrudRepository<UserSrin, Long> {
     UserSrin save(UserRequestDto userRequestDto);
+
+    @Override
+    void deleteById(Long id);
 }

src/main/java/com/second/spring_study/service/UserSrinService.java

@@ -3,18 +3,32 @@
 import com.second.spring_study.dto.request.srin.UserRequestDto;
 import com.second.spring_study.entity.user_srin.UserSrin;
 import com.second.spring_study.entity.user_srin.repository.UserSrinRepository;
+import com.second.spring_study.exception.srin.DataNotFoundException;
 import lombok.RequiredArgsConstructor;
 import org.springframework.stereotype.Service;
+import org.springframework.transaction.annotation.Transactional;
+
+import java.util.Iterator;
+import java.util.Optional;
 
 //실제 기능 구현하는곳
 @RequiredArgsConstructor
 @Service
 public class UserSrinService {
     private final UserSrinRepository userRepository;
-
+    @Transactional
     public void createUser(UserRequestDto userRequestDto) {
         UserSrin userSrin = UserSrin.createUser(userRequestDto.getUser_id(), userRequestDto.getUser_name(), userRequestDto.getUser_password());
         userRepository.save(userSrin);
     }
 
+    @Transactional
+    public void deleteUser(Long id){
+        /*
+        userRepository.findById(id).orElseThrow(() -> {
+            throw new DataNotFoundException();}
+        );
+        */
+        userRepository.deleteById(id);
+    }
 }