Kotlin + Spring 간단한 게시판 CRUD

Author: gringrape

20230106/simple-board/.gitattributes

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+#
+# https://help.github.com/articles/dealing-with-line-endings/
+#
+# Linux start script should use lf
+/gradlew        text eol=lf
+
+# These are Windows script files and should use crlf
+*.bat           text eol=crlf
+

20230106/simple-board/.gitignore

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+HELP.md
+.gradle
+build/
+!gradle/wrapper/gradle-wrapper.jar
+!**/src/main/**/build/
+!**/src/test/**/build/
+
+### STS ###
+.apt_generated
+.classpath
+.factorypath
+.project
+.settings
+.springBeans
+.sts4-cache
+bin/
+!**/src/main/**/bin/
+!**/src/test/**/bin/
+
+### IntelliJ IDEA ###
+.idea
+*.iws
+*.iml
+*.ipr
+out/
+!**/src/main/**/out/
+!**/src/test/**/out/
+
+### NetBeans ###
+/nbproject/private/
+/nbbuild/
+/dist/
+/nbdist/
+/.nb-gradle/
+
+### VS Code ###
+.vscode/

20230106/simple-board/README.md

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+# 게시판
+
+간단한 Kotlin Spring 연습.
+
+## 프로젝트 시작
+Spring Initializer 활용. (start.spring.io)
+### dependencies
+- spring boot starter web
+- spring boot devtools
+- h2 database
+
+## 할 일
+전체적인 할 일은 게시글의 목록, 상세, 입력, 수정, 삭제
+영속성까지 쭉 실험해보기.
+
+- [x] kotest 환경설정
+- [x] 계산기 덧셈 메서드를 통해서 kotest의 동작과 스펙 작성법 확인
+- [x] greeting -> "/" 경로에서 "hello"를 반환한다. 
+- [ ] 글 목록 -> "/posts" 경로에서 글 목록을 반환한다. 
+
+### 게시글 설정
+- 구성: 작성자, 제목, 글 내용, 작성 시간
+- 예시
+
+{
+  "author": "Jin",
+  "title": "피곤한 하루",
+  "content": "아무것도 하기 싫다",
+  "date": "2023-01-06T09:35:23.493Z"
+}
+
+## Kotest 설정
+설정 - https://kotest.io/docs/quickstart
+Spring DI를 이용하기 위한 설정 - https://kotest.io/docs/extensions/spring.html
+
+## Kotest
+DescribeSpec - https://kotest.io/docs/framework/testing-styles.html#describe-spec
+Setup mocks - https://kotest.io/docs/framework/integrations/mocking.html#option-1---setup-mocks-before-tests
+
+## Exposed Spring Starter
+Hibernate를 대신해서 Exposed를 ORM 도구로 사용할 수 있게 해줌. 
+https://github.com/JetBrains/Exposed/blob/c6cf3792997b28a2c6617c17adc5460ed77a1da7/exposed-spring-boot-starter/README.md
+
+### DSL 
+https://github.com/JetBrains/Exposed/wiki/DSL
+
+## 알게 된것
+- live reload server - https://docs.spring.io/spring-boot/docs/1.5.16.RELEASE/reference/html/using-boot-devtools.html#using-boot-devtools-livereload
+- kotest library import 시 버전 명시를 해주지 않아서 못 불러옴.
+- 특정 port 번호에 있는 프로세스 삭제 https://stackoverflow.com/questions/3855127/find-and-kill-process-locking-port-3000-on-mac
+- Spring Boot 3.0.0 에서 데이터 베이스 연결이 안되는 이슈 https://github.com/JetBrains/Exposed/issues/1636
+- insert 쿼리문 틀림.
+
+```sql
+INSERT INTO
+Posts (ID, AUTHOR, TITLE, CONTENT, CREATED)
+VALUES ('1', 'Jin', 'Hello', 'My name is Park', '2022-02-03T03:24:48')  
+```
+
+- 도메인 객체를 초기화할때 id에 파라메터를 받지 않고 초기화.
+```kotlin
+class Post(
+    id: Long? = null,
+    val author: String,
+    val title: String,
+    val content: String,
+    val created: LocalDateTime,
+) {
+    var id: Long = INITIAL_ID
+      private set
+  
+    init {
+      if (id != null) {
+        this.id = id
+      }
+    }
+}
+```
+
+## 생각들
+- DTO 의 Date 형식의 타입은 DateTime, String 이어야 할까?

20230106/simple-board/build.gradle.kts

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+import org.jetbrains.kotlin.gradle.tasks.KotlinCompile
+
+plugins {
+	id("org.springframework.boot") version "3.0.1"
+	id("io.spring.dependency-management") version "1.1.0"
+	kotlin("jvm") version "1.7.22"
+	kotlin("plugin.spring") version "1.7.22"
+}
+
+group = "com.gringrape"
+version = "0.0.1-SNAPSHOT"
+java.sourceCompatibility = JavaVersion.VERSION_17
+
+repositories {
+	mavenCentral()
+}
+
+dependencies {
+	implementation("org.springframework.boot:spring-boot-starter-web")
+	implementation("com.fasterxml.jackson.module:jackson-module-kotlin")
+	implementation("org.jetbrains.kotlin:kotlin-reflect")
+	implementation("org.jetbrains.kotlin:kotlin-stdlib-jdk8")
+	developmentOnly("org.springframework.boot:spring-boot-devtools")
+	implementation("org.jetbrains.exposed:exposed-kotlin-datetime:0.41.1")
+	implementation("org.springframework.boot:spring-boot-starter-validation:3.0.1")
+
+	implementation("org.jetbrains.exposed:exposed-spring-boot-starter:0.41.1")
+	runtimeOnly("com.h2database:h2")
+
+	testImplementation("org.springframework.boot:spring-boot-starter-test") {
+		exclude(module = "mockito-core")
+	}
+	testImplementation("io.kotest:kotest-runner-junit5:5.5.4")
+	testImplementation("io.kotest:kotest-assertions-core:5.5.4")
+	testImplementation("io.kotest.extensions:kotest-extensions-spring:1.1.2")
+	testImplementation("io.mockk:mockk:1.13.3")
+	testImplementation("com.ninja-squad:springmockk:4.0.0")
+}
+
+tasks.withType<KotlinCompile> {
+	kotlinOptions {
+		freeCompilerArgs = listOf("-Xjsr305=strict")
+		jvmTarget = "17"
+	}
+}
+
+tasks.withType<Test> {
+	useJUnitPlatform()
+}

20230106/simple-board/gradle/wrapper/gradle-wrapper.jar

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+distributionBase=GRADLE_USER_HOME
+distributionPath=wrapper/dists
+distributionUrl=https\://services.gradle.org/distributions/gradle-7.6-bin.zip
+zipStoreBase=GRADLE_USER_HOME
+zipStorePath=wrapper/dists