[Spring Boot][Trouble Shooting] gradlew build 실패

gradlew build

gradlew test는 성공했는데 gradlew build 명령어 실행 시 아래와 같은 에러와 함께 빌드가 실패했다. 프로젝트에 main 클래스가 2개가 있어서 발생한 에러였다.

Microsoft Windows [Version 10.0.19044.1889]
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C:\Users\J\Documents\GitHub\spring-boot-webservice-java11\spring-webservice>gradlew build
> Task :bootJarMainClassName FAILED

FAILURE: Build failed with an exception.

* What went wrong:
Execution failed for task ':bootJarMainClassName'.
> Unable to find a single main class from the following candidates [com.tistory.postforty.book.SpringWebserviceApplication, com.tistory.postforty.book.springboot.Application]

* Try:
> Run with --stacktrace option to get the stack trace.
> Run with --info or --debug option to get more log output.
> Run with --scan to get full insights.

* Get more help at https://help.gradle.org

BUILD FAILED in 3s
3 actionable tasks: 1 executed, 2 up-to-date

C:\Users\J\Documents\GitHub\spring-boot-webservice-java11\spring-webservice>

 

 

build.gradle

build.gradle에 아래 코드를 추가, 메인 클래스를 지정해 주었다.

springBoot {
	mainClass = 'com.tistory.postforty.book.springboot.Application'
}

 

이상의 조치 후 빌드가 성공하였다.

C:\Users\J\Documents\GitHub\spring-boot-webservice-java11\spring-webservice>gradlew build

BUILD SUCCESSFUL in 3s
8 actionable tasks: 3 executed, 5 up-to-date
C:\Users\J\Documents\GitHub\spring-boot-webservice-java11\spring-webservice>

 

✎ 참고: https://docs.spring.io/spring-boot/docs/current/gradle-plugin/reference/htmlsingle/#packaging-executable

Spring Boot Gradle Plugin Reference Guide