발단>

1. Gradle 버전이 4.*에서부터 5.* 최근에는 6.7까지 출시

2. Spring boot 2.3부터 Gradle 버전 6.3 이상을 요구

개발환경>

spring boot 2.4

Gradle 6.7.1 

인텔리제이에서 프로젝트를 진행하면서 QueryDsl을 이용해서 생성한 Q클래스를 생성하였다.

빌드시 에러가 발생함. 

에러 메시지>

package com.querydsl.core.types does not exist

수정 전 build.gradle>

plugins {
    id 'org.springframework.boot' version '2.4.2'
    id 'io.spring.dependency-management' version '1.0.11.RELEASE'
    id 'com.ewerk.gradle.plugins.querydsl' version '1.0.10'
    id 'java'
}

group = 'com.jiyoon'
version = '0.0.1-SNAPSHOT'
sourceCompatibility = '11'

configurations {
    compileOnly {
        extendsFrom annotationProcessor
    }
}

repositories {
    mavenCentral()
}

dependencies {
    implementation 'org.springframework.boot:spring-boot-starter-data-jpa'
    implementation 'org.springframework.boot:spring-boot-starter-web'
    implementation 'org.springframework.boot:spring-boot-starter-validation'
    compileOnly 'org.projectlombok:lombok'
    runtimeOnly 'com.h2database:h2'
    annotationProcessor 'org.projectlombok:lombok'
    testImplementation('org.springframework.boot:spring-boot-starter-test') {
        exclude group: 'org.junit.vintage', module: 'junit-vintage-engine'
    }
    testImplementation 'io.rest-assured:rest-assured:4.3.3'
    compile group: 'io.springfox', name: 'springfox-swagger2', version: '2.9.2'
    compile group: 'io.springfox', name: 'springfox-swagger-ui', version: '2.9.2'
    implementation 'com.querydsl:querydsl-jpa'
    implementation 'com.querydsl:querydsl-apt'
}

test {
    useJUnitPlatform()
}

def querydslSrcDir = "src/main/generated"

querydsl {
    library = "com.querydsl:querydsl-apt"
    jpa = true
    querydslSourcesDir = querydslSrcDir
}

sourceSets {
    main.java.srcDirs = ['src/main/java', querydslSrcDir]
}

configurations {
    querydsl.extendsFrom compileClasspath
}

compileQuerydsl {
    options.annotationProcessorPath = configurations.querydsl
}

Gradle Plugin “com.ewerk.gradle.plugins.querydsl” 로 설정하였다. 해당 프로젝트에서는 빌드 시 에러가 발생

수정 후 build.gradle>

plugins {
    id 'org.springframework.boot' version '2.4.2'
    id 'io.spring.dependency-management' version '1.0.11.RELEASE'
    id 'java'
}

group = 'com.jiyoon'
version = '0.0.1-SNAPSHOT'
sourceCompatibility = '11'

def querydslVersion = '4.3.1'

configurations {
    compileOnly {
        extendsFrom annotationProcessor
    }
}

repositories {
    mavenCentral()
}

dependencies {
    implementation 'org.springframework.boot:spring-boot-starter-data-jpa'
    implementation 'org.springframework.boot:spring-boot-starter-web'
    implementation 'org.springframework.boot:spring-boot-starter-validation'
    compileOnly 'org.projectlombok:lombok'
    runtimeOnly 'com.h2database:h2'
    annotationProcessor 'org.projectlombok:lombok'
    testImplementation('org.springframework.boot:spring-boot-starter-test') {
        exclude group: 'org.junit.vintage', module: 'junit-vintage-engine'
    }
    testImplementation 'io.rest-assured:rest-assured:4.3.3'
    compile group: 'io.springfox', name: 'springfox-swagger2', version: '2.9.2'
    compile group: 'io.springfox', name: 'springfox-swagger-ui', version: '2.9.2'

// Querydsl
    implementation group: 'com.querydsl', name: 'querydsl-jpa', version: querydslVersion
    implementation group: 'com.querydsl', name: 'querydsl-apt', version: querydslVersion
    implementation group: 'com.querydsl', name: 'querydsl-core', version: querydslVersion

    annotationProcessor group: 'com.querydsl', name: 'querydsl-apt', version: querydslVersion
    annotationProcessor group: 'com.querydsl', name: 'querydsl-apt', version: querydslVersion, classifier: 'jpa'
    annotationProcessor("jakarta.persistence:jakarta.persistence-api")
    annotationProcessor("jakarta.annotation:jakarta.annotation-api")
}

test {
    useJUnitPlatform()
}

clean {
    delete file('src/main/generated') // 인텔리제이 Annotation processor 생성물 생성위치
}

참고

Gradle 5.0이상 & IntelliJ 2020.* 사용 시

[gradle] 그레이들 Annotation processor 와 Querydsl

problem-with-generating-querydsl-classes-with-gradle