[Spring boot] compileQuerydsl 오류 시 해결 방법

1. Spring boot 3.0 이상

실수로 spring boot 버전은 3.0 이상으로 설치해버려서 QueryDSL 설정하면서 오류가 발생했다. 해결완료.... 😨

plugins {
	id 'java'
	id 'org.springframework.boot' version '3.0.0'
	id 'io.spring.dependency-management' version '1.1.0'
	// queryDSL 추가
	id "com.ewerk.gradle.plugins.querydsl" version "1.0.10"
}

group = 'org.zerock'
version = '0.0.1-SNAPSHOT'
sourceCompatibility = '17'

configurations {
	compileOnly {
		extendsFrom annotationProcessor
	}
}

repositories {
	mavenCentral()
}

dependencies {
	implementation 'org.springframework.boot:spring-boot-starter-data-jpa'
	implementation 'org.springframework.boot:spring-boot-starter-web'
	compileOnly 'org.projectlombok:lombok'
	runtimeOnly 'com.h2database:h2'
	annotationProcessor 'org.projectlombok:lombok'
	testImplementation 'org.springframework.boot:spring-boot-starter-test'

	// Querydsl 추가
	implementation 'com.querydsl:querydsl-jpa:5.0.0:jakarta'
	annotationProcessor "com.querydsl:querydsl-apt:${dependencyManagement.importedProperties['querydsl.version']}:jakarta"
	annotationProcessor "jakarta.annotation:jakarta.annotation-api"
	annotationProcessor "jakarta.persistence:jakarta.persistence-api"

}

tasks.named('test') {
	useJUnitPlatform()
}

// queryDSL 추가 : QueryDSL 빌드 옵션
def querydslDir = "$buildDir/generated/querydsl"

querydsl {
	jpa = true
	querydslSourcesDir = querydslDir
}
sourceSets {
	main.java.srcDir querydslDir
}
configurations {
	querydsl.extendsFrom compileClasspath
}
compileQuerydsl {
	options.annotationProcessorPath = configurations.querydsl
}
// 여기까지

2. Spring boot 2.6 이상

결국 프로젝트 다시 만들어서 진행 중인데... 또 안되길래 검색해보니 (교재에서는 스프링부트 2.3 버전을 쓴다 ^^....) 2.6 이상부터는 또 이렇게 설정해야지 된다...

buildscript {
    ext {
        queryDslVersion = "5.0.0"
    }
}

plugins {
    id 'java'
    id 'war'
    id 'org.springframework.boot' version '2.7.16-SNAPSHOT'
    id 'io.spring.dependency-management' version '1.0.15.RELEASE'
    id 'com.ewerk.gradle.plugins.querydsl' version '1.0.10'
}

group = 'org.zerock'
version = '0.0.1-SNAPSHOT'

java {
    sourceCompatibility = '17'
}

configurations {
    compileOnly {
        extendsFrom annotationProcessor
    }
}

repositories {
    mavenCentral()
    maven { url 'https://repo.spring.io/milestone' }
    maven { url 'https://repo.spring.io/snapshot' }
}

dependencies {
    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'
    compileOnly 'org.projectlombok:lombok'
    developmentOnly 'org.springframework.boot:spring-boot-devtools'
    runtimeOnly 'org.mariadb.jdbc:mariadb-java-client'
    annotationProcessor 'org.projectlombok:lombok'
    providedRuntime 'org.springframework.boot:spring-boot-starter-tomcat'
    testImplementation 'org.springframework.boot:spring-boot-starter-test'
    // https://mvnrepository.com/artifact/org.thymeleaf.extras/thymeleaf-extras-java8time
    implementation group: 'org.thymeleaf.extras', name: 'thymeleaf-extras-java8time', version: '3.0.4.RELEASE'
    implementation "com.querydsl:querydsl-jpa:${queryDslVersion}"
    implementation "com.querydsl:querydsl-apt:${queryDslVersion}"
}

tasks.named('test') {
    useJUnitPlatform()
}

def querydslDir = "$buildDir/generated/querydsl"

querydsl {
    jpa = true
    querydslSourcesDir = querydslDir
}

sourceSets {
    main.java.srcDir querydslDir
}

compileQuerydsl {
    options.annotationProcessorPath = configurations.querydsl
}

configurations {
    compileOnly {
        extendsFrom annotationProcessor
    }
    querydsl.extendsFrom compileClasspath
}