[김민국/완료] 0001

.gitignore

@@ -35,3 +35,8 @@ out/
 
 ### VS Code ###
 .vscode/
+
+### Custom ###
+db_dev.mv.db
+db_dev.trace.db
+.env

src/main/java/com/back/BackApplication.java

@@ -2,7 +2,9 @@
 
 import org.springframework.boot.SpringApplication;
 import org.springframework.boot.autoconfigure.SpringBootApplication;
+import org.springframework.data.jpa.repository.config.EnableJpaAuditing;
 
+@EnableJpaAuditing
 @SpringBootApplication
 public class BackApplication {
 

src/main/java/com/back/entity/Member.java

@@ -0,0 +1,21 @@
+package com.back.entity;
+
+import com.back.jpa.entity.BaseIdAndTime;
+import jakarta.persistence.Column;
+import jakarta.persistence.Entity;
+import lombok.NoArgsConstructor;
+
+@Entity
+@NoArgsConstructor
+public class Member extends BaseIdAndTime {
+    @Column(unique = true)
+    private String username;
+    private String password;
+    private String nickname;
+
+    public Member(String username, String password, String nickname) {
+        this.username = username;
+        this.password = password;
+        this.nickname = nickname;
+    }
+}

src/main/java/com/back/exception/DomainException.java

@@ -0,0 +1,15 @@
+package com.back.exception;
+
+import lombok.Getter;
+
+@Getter
+public class DomainException extends RuntimeException {
+    private final String resultCode;
+    private final String msg;
+
+    public DomainException(String resultCode, String msg) {
+        super(resultCode + " : " + msg);
+        this.resultCode = resultCode;
+        this.msg = msg;
+    }
+}

src/main/java/com/back/initData/DataInit.java

@@ -0,0 +1,41 @@
+package com.back.initData;
+
+import com.back.entity.Member;
+import com.back.service.MemberService;
+import lombok.extern.slf4j.Slf4j;
+import org.springframework.boot.ApplicationRunner;
+import org.springframework.context.annotation.Bean;
+import org.springframework.context.annotation.Configuration;
+import org.springframework.context.annotation.Lazy;
+import org.springframework.transaction.annotation.Transactional;
+
+@Configuration
+@Slf4j
+public class DataInit {
+    private final DataInit self;
+    private final MemberService memberService;
+
+    public DataInit(@Lazy DataInit self, MemberService memberService) {
+        this.self = self;
+        this.memberService = memberService;
+    }
+
+    @Bean
+    public ApplicationRunner baseInitDataRunner() {
+        return args -> {
+            self.makeBaseMembers();
+        };
+    }
+
+    @Transactional
+    public void makeBaseMembers() {
+        if (memberService.count() > 0) return;
+
+        Member systemMember = memberService.join("system", "1234", "시스템");
+        Member holdingMember = memberService.join("holding", "1234", "홀딩");
+        Member adminMember = memberService.join("admin", "1234", "관리자");
+        Member user1Member = memberService.join("user1", "1234", "유저1");
+        Member user2Member = memberService.join("user2", "1234", "유저2");
+        Member user3Member = memberService.join("user3", "1234", "유저3");
+    }
+}

src/main/java/com/back/jpa/entity/BaseEntity.java

@@ -0,0 +1,16 @@
+package com.back.jpa.entity;
+
+import jakarta.persistence.EntityListeners;
+import jakarta.persistence.MappedSuperclass;
+import lombok.Getter;
+import org.springframework.data.jpa.domain.support.AuditingEntityListener;
+
+@MappedSuperclass
+@EntityListeners(AuditingEntityListener.class)
+@Getter
+// 모든 엔티티들의 조상
+public class BaseEntity {
+    public String getModelTypeCode() {
+        return this.getClass().getSimpleName();
+    }
+}

src/main/java/com/back/jpa/entity/BaseIdAndTime.java

@@ -0,0 +1,27 @@
+package com.back.jpa.entity;
+
+import jakarta.persistence.EntityListeners;
+import jakarta.persistence.GeneratedValue;
+import jakarta.persistence.Id;
+import jakarta.persistence.MappedSuperclass;
+import lombok.Getter;
+import org.springframework.data.annotation.CreatedDate;
+import org.springframework.data.annotation.LastModifiedDate;
+import org.springframework.data.jpa.domain.support.AuditingEntityListener;
+
+import java.time.LocalDateTime;
+
+import static jakarta.persistence.GenerationType.IDENTITY;
+
+@MappedSuperclass
+@EntityListeners(AuditingEntityListener.class)
+@Getter
+public class BaseIdAndTime extends BaseEntity {
+    @Id
+    @GeneratedValue(strategy = IDENTITY)
+    private int id;
+    @CreatedDate
+    private LocalDateTime createDate;
+    @LastModifiedDate
+    private LocalDateTime modifyDate;
+}

src/main/java/com/back/repository/MemberRepository.java

@@ -0,0 +1,10 @@
+package com.back.repository;
+
+import com.back.entity.Member;
+import org.springframework.data.jpa.repository.JpaRepository;
+
+import java.util.Optional;
+
+public interface MemberRepository extends JpaRepository<Member, Integer> {
+    Optional<Member> findByUsername(String username);
+}

src/main/java/com/back/service/MemberService.java

@@ -0,0 +1,33 @@
+package com.back.service;
+
+import com.back.entity.Member;
+import com.back.exception.DomainException;
+import com.back.repository.MemberRepository;
+import org.springframework.stereotype.Service;
+
+import java.util.Optional;
+
+@Service
+public class MemberService {
+    private final MemberRepository memberRepository;
+
+    public MemberService(MemberRepository memberRepository) {
+        this.memberRepository = memberRepository;
+    }
+
+    public long count() {
+        return memberRepository.count();
+    }
+
+    public Member join(String username, String password, String nickname) {
+        findByUsername(username).ifPresent(m -> {
+            throw new DomainException("409-1", "이미 존재하는 username 입니다.");
+        });
+
+        return memberRepository.save(new Member(username, password, nickname));
+    }
+
+    public Optional<Member> findByUsername(String username) {
+        return memberRepository.findByUsername(username);
+    }
+}

src/main/resources/application-dev.yml

@@ -0,0 +1,6 @@
+spring:
+  datasource:
+    url: jdbc:h2:./db_dev;MODE=MySQL
+    username: sa
+    password:
+    driver-class-name: org.h2.Driver

src/main/resources/application.yml

@@ -0,0 +1,30 @@
+server:
+  port: 8080
+spring:
+  application:
+    name: back
+  profiles:
+    active: dev
+  output:
+    ansi:
+      enabled: always
+  jackson:
+    serialization:
+      fail-on-empty-beans: false
+  jpa:
+    hibernate:
+      ddl-auto: update
+    open-in-view: false
+    show-sql: true
+    properties:
+      hibernate:
+        format_sql: true
+        highlight_sql: true
+        use_sql_comments: true
+        default_batch_fetch_size: 100
+logging:
+  level:
+    com.back: DEBUG
+    org.hibernate.orm.jdbc.bind: TRACE
+    org.hibernate.orm.jdbc.extract: TRACE
+    org.springframework.transaction.interceptor: TRACE