형편없는프로그래머가언어탓한다

Extract code to a variable

Ctrl + Alt + V

해당 코드에서 코드에맞는 데이터 변수 타입 , 변수 명 자동 생성

request.getContextPath();

입력 후 Ctrl + Alt + V

변수타입 + 추천 변수명리스트 자동 생성

1. HTML 파일 패턴에서 html이 없는경우

2.File type auto-detected by file content 에 해당 파일이 추가 된 경우

File -> Settings -> File Types

A problem occurred configuring root project 'demo'.
> Could not resolve all files for configuration ':classpath'.
   > Could not resolve org.springframework.boot:spring-boot-gradle-plugin:3.0.1.
     Required by:
         project : > org.springframework.boot:org.springframework.boot.gradle.plugin:3.0.1
      > No matching variant of org.springframework.boot:spring-boot-gradle-plugin:3.0.1 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:3.0.1 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:3.0.1 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:3.0.1 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:3.0.1 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:3.0.1 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:3.0.1 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.

spring Boot 3.0 version 환경에서 프로젝트를 생성하는데 계속 오류가 생겼다

dependency 도 바꿔보고 없애도 봤는데 해결되지 않았다.

그래서 JAVA version 문제인가 ? 했더니 맞았다.

Spring Boot 3.0 부터 달라진점

최소 자바 버전 8 -> 17 변경

등등 이런내용들 ,, 자세한 내용은

https://github.com/spring-projects/spring-boot/wiki/Spring-Boot-3.0-Release-Notes

공식 github에서 확인할 수 있다.

Eclipse Dynamic Web

JSP 파일에서 마주친 Multiple annotations found at this line ERROR이다.

라이브러리 경로를 잡아주면 된다.

프로젝트 우클릭 -> properties -> Libraries

Server Runtime을 추가해 준다

만약 Server Runtime을 추가해줘도 오류가 안없어진다면

Web App Libraries를 추가해주고 apply 를 눌러준다

에러가 없어졌다 !