Add entity, repository

build.gradle

@@ -21,6 +21,7 @@ repositories {
 dependencies {
     implementation 'org.springframework.boot:spring-boot-starter-security'
     implementation 'org.springframework.boot:spring-boot-starter-web'
+    implementation "org.springframework.boot:spring-boot-starter-data-jpa"
     compileOnly 'org.projectlombok:lombok'
     developmentOnly 'org.springframework.boot:spring-boot-devtools'
     runtimeOnly 'com.mysql:mysql-connector-j'

src/main/java/com/sscc/capsule/entity/BaseTimeEntity.java

@@ -0,0 +1,24 @@
+package com.sscc.capsule.entity;
+
+import jakarta.persistence.Column;
+import jakarta.persistence.EntityListeners;
+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;
+
+@MappedSuperclass
+@Getter
+@EntityListeners(AuditingEntityListener.class)
+public class BaseTimeEntity {
+
+    @CreatedDate
+    @Column(updatable = false)
+    private LocalDateTime createdAt;
+
+    @LastModifiedDate
+    private LocalDateTime updatedAt;
+}

src/main/java/com/sscc/capsule/entity/Category.java

@@ -0,0 +1,22 @@
+package com.sscc.capsule.entity;
+
+import jakarta.persistence.*;
+import lombok.*;
+
+@Entity
+@Table
+@Getter
+@Setter
+@RequiredArgsConstructor
+@AllArgsConstructor
+@Builder
+public class Category {
+
+    @Id
+    @GeneratedValue(strategy = GenerationType.IDENTITY)
+    private Long id;
+
+    @Column(nullable = false, length = 30)
+    private String name;
+
+}

src/main/java/com/sscc/capsule/entity/Heart.java

@@ -0,0 +1,27 @@
+package com.sscc.capsule.entity;
+
+import jakarta.persistence.*;
+import lombok.*;
+
+@Entity
+@Table
+@Getter
+@Setter
+@RequiredArgsConstructor
+@AllArgsConstructor
+@Builder
+public class Heart {
+
+    @Id
+    @GeneratedValue(strategy = GenerationType.IDENTITY)
+    private Long id;
+
+    @ManyToOne
+    @JoinColumn(nullable = false, name = "user_id")
+    private User user;
+
+    @ManyToOne
+    @JoinColumn(nullable = false, name = "post_id")
+    private Post post;
+
+}

src/main/java/com/sscc/capsule/entity/Post.java

@@ -0,0 +1,40 @@
+package com.sscc.capsule.entity;
+
+import jakarta.persistence.*;
+import lombok.*;
+import org.hibernate.annotations.ColumnDefault;
+
+@Entity
+@Table
+@Getter
+@Setter
+@RequiredArgsConstructor
+@AllArgsConstructor
+@Builder
+public class Post extends BaseTimeEntity {
+
+    @Id
+    @GeneratedValue(strategy = GenerationType.IDENTITY)
+    private Long id;
+
+    @Column(nullable = false)
+    private String title;
+
+    @Column(nullable = false, columnDefinition = "TEXT")
+    private String content;
+
+    private String file;
+
+    @Column(nullable = false)
+    @ColumnDefault("0")
+    private Integer hearts;
+
+    @ManyToOne
+    @JoinColumn(nullable = false, name = "user_id")
+    private User user;
+
+    @ManyToOne
+    @JoinColumn(nullable = false, name = "category_id")
+    private Category category;
+
+}

src/main/java/com/sscc/capsule/entity/User.java

@@ -0,0 +1,36 @@
+package com.sscc.capsule.entity;
+
+import jakarta.persistence.*;
+import lombok.*;
+import org.hibernate.annotations.ColumnDefault;
+
+@Entity
+@Table
+@Getter
+@Setter
+@RequiredArgsConstructor
+@AllArgsConstructor
+@Builder
+public class User extends BaseTimeEntity {
+
+    @Id
+    @GeneratedValue(strategy = GenerationType.UUID)
+    private String id;
+
+    @Column(nullable = false, length=64)
+    private String password;
+
+    @Column(nullable = false, length = 50)
+    private String nickname;
+
+    @Column(nullable = false, length = 15)
+    private String name;
+
+    @Column(nullable = false)
+    private Integer generation; // 기수
+
+    @Column(nullable = false, columnDefinition = "TINYINT")
+    @ColumnDefault("0")
+    private Integer role;
+
+}

src/main/java/com/sscc/capsule/repository/CategoryRepository.java

@@ -0,0 +1,7 @@
+package com.sscc.capsule.repository;
+
+import com.sscc.capsule.entity.Category;
+import org.springframework.data.jpa.repository.JpaRepository;
+
+public interface CategoryRepository extends JpaRepository<Category, Long> {
+}

src/main/java/com/sscc/capsule/repository/HeartRepository.java

@@ -0,0 +1,7 @@
+package com.sscc.capsule.repository;
+
+import com.sscc.capsule.entity.Heart;
+import org.springframework.data.jpa.repository.JpaRepository;
+
+public interface HeartRepository extends JpaRepository<Heart, Long> {
+}

src/main/java/com/sscc/capsule/repository/PostRepository.java

@@ -0,0 +1,7 @@
+package com.sscc.capsule.repository;
+
+import com.sscc.capsule.entity.Post;
+import org.springframework.data.jpa.repository.JpaRepository;
+
+public interface PostRepository extends JpaRepository<Post, Long> {
+}

src/main/java/com/sscc/capsule/repository/UserRepository.java

@@ -0,0 +1,7 @@
+package com.sscc.capsule.repository;
+
+import com.sscc.capsule.entity.User;
+import org.springframework.data.jpa.repository.JpaRepository;
+
+public interface UserRepository extends JpaRepository<User, String> {
+}