에러 해결

"status": 400,
"error": "Bad Request",
"trace": "org.springframework.http.converter.HttpMessageNotReadableException: JSON parse error: Cannot construct instance of com.codelion.mutsasns.domain.comment.dto.CommentModifyRequest (although at least one Creator exists): cannot deserialize from Object value (no delegate- or property-based Creator); nested exception is com.fasterxml.jackson.databind.exc.

• request 받을 때 기본 생성자 만들어주지 않음

Resolved [org.springframework.web.bind.MissingPathVariableException: Required URI template variable 'pastId' for method parameter type Long is not present]

• 컨트롤러에서 URI템플릿에 해당하는 변수명이나 타입이 안맞는다는것 입니다.
  postId 오타 -> pastId로 작성하여 발생한 에러
  https://varietn.tistory.com/entry/%EC%8A%A4%ED%94%84%EB%A7%81%EB%B6%80%ED%8A%B8-%EC%BB%A8%ED%8A%B8%EB%A1%A4%EB%9F%AC-Missing-URI-template-variable-for-method-parameter

Failed to create query for method public abstract java.util.Optional com.codelion.mutsasns.repository.LikeJpaRepository.findByUserId(java.lang.Long)! No property 'userId' found for type 'Likes' Did you mean ''users''

• 전

Likes likesState = likeJpaRepository.findByUserId(getUser.getId()).get();

• 해결

Likes likesState = likeJpaRepository.findByUsers(getUser.getId()).get();

"org.springframework.dao.InvalidDataAccessApiUsageException: Parameter value [1] did not match expected type [com.codelion.mutsasns.domain.user.entity.Users (n/a)];

Skipped breakpoint at com.sun.proxy.$Proxy148.toString()+0 because it happened inside debugger evaluation
속도

com.mysql.cj.jdbc.exceptions.CommunicationsException: Communications link failure

• mysql server 꺼짐

org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'postController' defined in URL [jar:file:/app/MutsaSNS-0.0.1-SNAPSHOT.jar!/BOOT-INF/classes!/com/codelion/mutsasns/controller/PostController.class]: Unsatisfied dependency expressed through constructor parameter 0; nested exception is org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'postsService' defined in URL [jar:file:/app/MutsaSNS-0.0.1-SNAPSHOT.jar!/BOOT-INF/classes!/com/codelion/mutsasns/service/PostsService.class]: Unsatisfied dependency expressed through constructor parameter 1; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'userService': Injection of autowired dependencies failed; nested exception is java.lang.IllegalArgumentException: Could not resolve placeholder 'jwt.token.secret' in value "${jwt.token.secret}"

• 빌드시 test로 인해 fail나는 경우
  https://abbo.tistory.com/303
  https://velog.io/@hyoreal51/execution-failed-for-task-test