feat: Add CH4 실습코드와 과제 Test 코드 제외하고 구현한 코드 추가

.gitignore

@@ -0,0 +1,2 @@
+/.idea
+

ServerStudyPractice/build.gradle → suucong/SpringBoot/SpringBootPractice/build.gradle

@@ -28,10 +28,13 @@ repositories {
 
 dependencies {
     implementation('org.springframework.boot:spring-boot-starter-web')
-    testImplementation('org.springframework.boot:spring-boot-starter-test')
-    testImplementation('junit:junit:4.12')      // Junit 4.12 라이브러리 추가
     implementation('org.projectlombok:lombok')
     annotationProcessor('org.projectlombok:lombok')
+    implementation('org.springframework.boot:spring-boot-starter-data-jpa')
+    implementation('com.h2database:h2')
+    testImplementation('org.springframework.boot:spring-boot-starter-test')
+    testImplementation('junit:junit:4.12')      // Junit 4.12 라이브러리 추가
+    implementation ('org.springframework.boot:spring-boot-starter-mustache')    // mustache starter 라이브러리 추가
 }
 
 test {

ServerStudyPractice/gradle/wrapper/gradle-wrapper.properties → suucong/SpringBoot/SpringBootPractice/gradle/wrapper/gradle-wrapper.properties

@@ -1,6 +1,6 @@
-#Sun Sep 17 21:41:43 KST 2023
+#Mon Oct 02 08:27:41 KST 2023
 distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-8.0-bin.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-8.2-bin.zip
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists

suucong/SpringBoot/SpringBootPractice/settings.gradle

@@ -0,0 +1,2 @@
+rootProject.name = 'SpringBootPractice'
+

ServerStudyPractice/src/main/java/com/sujin/book/springboot/Application.java → suucong/SpringBoot/SpringBootPractice/src/main/java/com/sujin/book/springboot/Application.java

@@ -1,7 +1,9 @@
 package com.sujin.book.springboot;
 import org.springframework.boot.SpringApplication;
 import org.springframework.boot.autoconfigure.SpringBootApplication;
+import org.springframework.data.jpa.repository.config.EnableJpaAuditing;
 
+@EnableJpaAuditing  // JPA Auditing 어노테이션을 모두 활성화 할 수 있도록 함.
 @SpringBootApplication  // 스프링부트의 자동 설정, 스프링 Bean 읽기와 생성을 모두 자동으로 설정. 이 어노테이션이 있는 위치부터 설정을 읽어가기 떄문에 이 클래스는 항상 프로젝트 최상단에 위치해야함.
 public class Application {
     public static void main(String[] args) {

suucong/SpringBoot/SpringBootPractice/src/main/java/com/sujin/book/springboot/domain/BaseTimeEntity.java

@@ -0,0 +1,23 @@
+package com.sujin.book.springboot.domain;
+
+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;
+
+@Getter
+@MappedSuperclass   // JPA 엔타티 클래스들이 이 클래스를 상속할 경우 필드들(createdDate, modifiedDate)도 칼럼으로 인식하도록 한다.
+@EntityListeners(AuditingEntityListener.class)  // 이 클래스에 Auditing 기능을 포함시킨다. JPA Auditing 기능은 데이타베이스 엔티티의 변경 이력을 추적하고 기록하는 기능
+public abstract class BaseTimeEntity {  // 모든 Entity의 상위 클래스가 되어 Entity들의 createdDate, modifiedDate를 자동으로 관리하는 역할
+
+    @CreatedDate    // Entity가 생성되어 저장될 때 시간이 자동 저장
+    private LocalDateTime createdDate;
+
+    @LastModifiedDate   // 조회한 Entity의 값을 변경할 때 시간이 자동 저장.
+    private LocalDateTime modifiedDate;
+
+}

suucong/SpringBoot/SpringBootPractice/src/main/java/com/sujin/book/springboot/domain/posts/Posts.java

@@ -0,0 +1,41 @@
+package com.sujin.book.springboot.domain.posts;
+
+import com.sujin.book.springboot.domain.BaseTimeEntity;
+import lombok.Builder;
+import lombok.Getter;
+import lombok.NoArgsConstructor;
+
+import jakarta.persistence.Column;
+import jakarta.persistence.Entity;
+import jakarta.persistence.GeneratedValue;
+import jakarta.persistence.GenerationType;
+import jakarta.persistence.Id;
+
+@Getter
+@NoArgsConstructor
+@Entity
+public class Posts extends BaseTimeEntity {     // BaseTimeEntity 클래스를 상속받음.
+    @Id
+    @GeneratedValue(strategy = GenerationType.IDENTITY)
+    private Long id;
+
+    @Column(length = 500, nullable = false)
+    private String title;
+
+    @Column(columnDefinition = "TEXT", nullable = false)
+    private String content;
+
+    private String author;
+
+    @Builder
+    public Posts(String title, String content, String author) {
+        this.title = title;
+        this.content = content;
+        this.author = author;
+    }
+
+    public void update(String title, String content) {
+        this.title = title;
+        this.content = content;
+    }
+}

suucong/SpringBoot/SpringBootPractice/src/main/java/com/sujin/book/springboot/domain/posts/PostsRepository.java

@@ -0,0 +1,14 @@
+package com.sujin.book.springboot.domain.posts;
+
+import org.springframework.data.jpa.repository.JpaRepository;
+import org.springframework.data.jpa.repository.Query;
+
+import java.util.List;
+
+public interface PostsRepository extends JpaRepository<Posts, Long>{
+
+    // SpringDataJpa에서 제공하는 기본 메서드만으로 해결 가능하지만. Query가
+    // 가독성이 좋기 때문에 선택해서 사용하면 된다.
+    @Query("SELECT p FROM Posts p ORDER BY p.id DESC")
+    List<Posts> findAllDesc();
+}

suucong/SpringBoot/SpringBootPractice/src/main/java/com/sujin/book/springboot/domain/products/Products.java

@@ -0,0 +1,42 @@
+package com.sujin.book.springboot.domain.products;
+
+import jakarta.persistence.*;
+import lombok.Builder;
+import lombok.Getter;
+import lombok.NoArgsConstructor;
+
+@Getter
+@NoArgsConstructor
+@Entity
+public class Products {
+    @Id
+    @GeneratedValue(strategy = GenerationType.IDENTITY)
+    private Long productNum;
+
+    @Column(length = 200, nullable = false)
+    private String name;
+
+    @Column(nullable = false)
+    private Long price;
+
+    @Column(nullable = false)
+    private Long stock;
+
+    @Column(length = 200, nullable = false)
+    private String category;
+
+    @Builder
+    public Products(String name, Long price, Long stock, String category) {
+        this.name = name;
+        this.price = price;
+        this.stock = stock;
+        this.category = category;
+    }
+
+    public void update(String name, Long price, Long stock, String category) {
+        this.name = name;
+        this.price = price;
+        this.stock = stock;
+        this.category = category;
+    }
+}

suucong/SpringBoot/SpringBootPractice/src/main/java/com/sujin/book/springboot/domain/products/ProductsRepository.java

@@ -0,0 +1,6 @@
+package com.sujin.book.springboot.domain.products;
+
+import org.springframework.data.jpa.repository.JpaRepository;
+
+public interface ProductsRepository extends JpaRepository<Products, Long> {
+}