Spirng Boot Project 3주차 회고

이번 주 키워드는 대부분이 내용이 많고 어려워서 구현을 위해 참고한 링크만 정리했습니다. 시간이 될 때 하나씩 정리하려고 합니다.

1. 왜 JPA를 사용하는 가?

Why JPA?Between JPA and JDBC

2. 디미터 법칙

• 디미터 법칙이란?

디미터 법칙

• 문제 코드

(!joinForm.getPassword().equals(joinForm.getReconfirmPassword()))

• 개선후

(!joinForm.isSamePassword())

3. Bean Validation

Validation with Spring Boot - the Complete GuideTomHombergs

Validation 어디까지 해봤니? : NHN Cloud MeetupNHN Cloud Meetup

Bean Validation Anti-PatternsTomHombergs

Javax annotation constrainst @ReportAsSingleViolationStack Overflow

Hibernate Validator 9.1.0.Final - Jakarta Validation Reference Implementation: Reference Guidedocs.jboss.org

4. AOP

AOP 정리 (3)기억보단 기록을

Introduction to Advice Types in Spring | BaeldungBaeldung on Kotlin

Comparing Spring AOP and AspectJ | BaeldungBaeldung on Kotlin

5. @Autowired vs Constructor Dependency Injection

@Autowired vs Constructor Dependency Injection

6. 오류 코드

오류 코드

7. JPA 테이블명 네이밍 전략

Custom Naming Convention with Spring Data JPA | BaeldungBaeldung on Kotlin

8.Entity 에서 @NotNull 필드를 삭제

DataIntegrityViolationException 발생

2023-04-18 06:08:39.320  WARN 67167 --- [nio-8080-exec-2] o.h.engine.jdbc.spi.SqlExceptionHelper   : SQL Error: 23503, SQLState: 23503
2023-04-18 06:08:39.320 ERROR 67167 --- [nio-8080-exec-2] o.h.engine.jdbc.spi.SqlExceptionHelper   : Referential integrity constraint violation: "FKE5HJEWHND6TRRDGT8I6UAPKHY: PUBLIC.POST FOREIGN KEY(ACCOUNT_ID) REFERENCES PUBLIC.ACCOUNT(ACCOUNT_ID) (CAST(2 AS BIGINT))"; SQL statement:
delete from account where account_id=? [23503-214]
2023-04-18 06:08:39.321  INFO 67167 --- [nio-8080-exec-2] o.h.e.j.b.internal.AbstractBatchImpl     : HHH000010: On release of batch it still contained JDBC statements
2023-04-18 06:08:39.324  WARN 67167 --- [nio-8080-exec-2] k.c.cafe.global.GlobalExceptionHandler   : request:url /user/delete
2023-04-18 06:08:39.324  WARN 67167 --- [nio-8080-exec-2] .m.m.a.ExceptionHandlerExceptionResolver : Resolved [org.springframework.dao.DataIntegrityViolationException: could not execute statement; SQL [n/a]; constraint ["FKE5HJEWHND6TRRDGT8I6UAPKHY: PUBLIC.POST FOREIGN KEY(ACCOUNT_ID) REFERENCES PUBLIC.ACCOUNT(ACCOUNT_ID) (CAST(2 AS BIGINT))"; SQL statement:<EOL>delete from account where account_id=? [23503-214]]; nested exception is org.hibernate.exception.ConstraintViolationException: could not execute statement]

9. 트랜잭션의 ACID 속성

ACID properties of transactions

10. spring.jpa.open-in-view?

A Guide to Spring's Open Session In ViewBaeldung on Kotlin

11. assertSoftly

assertj-examples/assertions-examples/src/test/java/org/assertj/examples/SoftAssertionsExamples.java at main · assertj/assertj-examplesGitHub