스프링 부트 환경설정(인텔리제이.ver)

1. 스프링 부트 설정파일 다운로드

https://start.spring.io/ 접속하여 설정 정보 입력 > ADD DEPENDENCIES > GENERGENERATEATE

 

Aritifact 에 프로젝트명을 입력하면 Name에도 동일하게 자동적용된다.

 

 

2. 스프링 부트 설정파일 import

1) 원하는 위치에 다운받은 zip 파일 압축을푼다.

2) File > Open > 압축 푼 폴더 > build.gradle 파일 오픈

3) 빌드 기다리기

 

3. 에러 수정

빌드가 되지 않고 아래와 같은 에러들이 발생했다. 해결해보자.

A problem occurred configuring root project 'todoList'.
> Could not resolve all files for configuration ':classpath'.
   > Could not resolve org.springframework.boot:spring-boot-gradle-plugin:3.0.3.
     Required by:
         project : > org.springframework.boot:org.springframework.boot.gradle.plugin:3.0.3
      > No matching variant of org.springframework.boot:spring-boot-gradle-plugin:3.0.3 was found. The consumer was configured to find a runtime of a library compatible with Java 8, packaged as a jar, and its dependencies declared externally, as well as attribute 'org.gradle.plugin.api-version' with value '7.6' but:
          - Variant 'apiElements' capability org.springframework.boot:spring-boot-gradle-plugin:3.0.3 declares a library, packaged as a jar, and its dependencies declared externally:
              - Incompatible because this component declares an API of a component compatible with Java 17 and the consumer needed a runtime of a component compatible with Java 8
              - Other compatible attribute:
                  - Doesn't say anything about org.gradle.plugin.api-version (required '7.6')
          - Variant 'javadocElements' capability org.springframework.boot:spring-boot-gradle-plugin:3.0.3 declares a runtime of a component, and its dependencies declared externally:
              - Incompatible because this component declares documentation and the consumer needed a library
              - Other compatible attributes:
                  - Doesn't say anything about its target Java version (required compatibility with Java 8)
                  - Doesn't say anything about its elements (required them packaged as a jar)
                  - Doesn't say anything about org.gradle.plugin.api-version (required '7.6')
          - Variant 'mavenOptionalApiElements' capability org.springframework.boot:spring-boot-gradle-plugin-maven-optional:3.0.3 declares a library, packaged as a jar, and its dependencies declared externally:
              - Incompatible because this component declares an API of a component compatible with Java 17 and the consumer needed a runtime of a component compatible with Java 8
              - Other compatible attribute:
                  - Doesn't say anything about org.gradle.plugin.api-version (required '7.6')
          - Variant 'mavenOptionalRuntimeElements' capability org.springframework.boot:spring-boot-gradle-plugin-maven-optional:3.0.3 declares a runtime of a library, packaged as a jar, and its dependencies declared externally:
              - Incompatible because this component declares a component compatible with Java 17 and the consumer needed a component compatible with Java 8
              - Other compatible attribute:
                  - Doesn't say anything about org.gradle.plugin.api-version (required '7.6')
          - Variant 'runtimeElements' capability org.springframework.boot:spring-boot-gradle-plugin:3.0.3 declares a runtime of a library, packaged as a jar, and its dependencies declared externally:
              - Incompatible because this component declares a component compatible with Java 17 and the consumer needed a component compatible with Java 8
              - Other compatible attribute:
                  - Doesn't say anything about org.gradle.plugin.api-version (required '7.6')
          - Variant 'sourcesElements' capability org.springframework.boot:spring-boot-gradle-plugin:3.0.3 declares a runtime of a component, and its dependencies declared externally:
              - Incompatible because this component declares documentation and the consumer needed a library
              - Other compatible attributes:
                  - Doesn't say anything about its target Java version (required compatibility with Java 8)
                  - Doesn't say anything about its elements (required them packaged as a jar)
                  - Doesn't say anything about org.gradle.plugin.api-version (required '7.6')

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

구글링으로 찾아보니 spring boot 가 3.0.0 버전 이후부터는 java 17 버전이 필요하다는 것을 알게 되었다.

 

1) 자바 17버전을 다운받고 실행 파일을 통해 설치한다.

Java Archive Downloads - Java SE 17 (oracle.com)

Java Archive Downloads - Java SE 17

2) 설치 후에 cmd로 java -version 을 입력해서 제대로 설치되었는지 확인한다.

 

3) 이제 인텔리제이로 가서 자바 버전을 17로 변경한다. 과정은 아래를 참고한다.

 

https://jojoldu.tistory.com/698

Spring Boot 3.x 실행이 안될 경우 (feat. IntelliJ)

 

잘 빌드되었다.

4. 환경설정 확인

1) src > main > java 에 이미 존재하는 java 파일 Run

2) localhost:8080 으로 접속하면 아래와 같은 에러 페이지 발생

3) 아래 이미지처럼 뜨면 환경설정이 완료된 것이다.