[Spring boot] 애플리케이션 실행시 바로 종료되는 문제 (Process finished with exit code 0)

프로젝트 실행은 문제 없는데 아래와 같은 메세지와 함께 실행과 동시에 종료되어 버림

2021-07-06 21:10:39.713  INFO 12914 --- [           main] com.demo.DemoApplication    		: Started DemoApplication in 21.268 seconds (JVM running for 26.635)
2021-07-06 21:10:39.718  INFO 12914 --- [ionShutdownHook] j.LocalContainerEntityManagerFactoryBean : Closing JPA EntityManagerFactory for persistence unit 'default'
2021-07-06 21:10:39.720  INFO 12914 --- [ionShutdownHook] com.zaxxer.hikari.HikariDataSource       : HikariPool-1 - Shutdown initiated...
2021-07-06 21:10:39.726  INFO 12914 --- [ionShutdownHook] com.zaxxer.hikari.HikariDataSource       : HikariPool-1 - Shutdown completed.

Process finished with exit code 0

 

바로 종료되지 않게 하려면!

build.gradle의 dependencies에 spring-boot-starter-web 추가

implementation 'org.springframework.boot:spring-boot-starter-web'

 

main class에 @EnableWebMvc annotation 추가

@EnableWebMvc
@SpringBootApplication
public class DemoApplication {
	...
}

 

Reload Gradle Project 후에 다시 실행하면 바로 종료되지 않는다