2023-04-24-TIL

Today I Learned

Builder Pattern for Java Records

• https://howtodoinjava.com/java/basics/builder-pattern-for-java-records/
• https://www.baeldung.com/java-record-vs-lombok

Jackson2ObjectMapperBuilderCustomizer vs MessageConverter

JSON 응답은 전역적으로 Jackson2ObjectMapperBuilderCustomizer를 통해서 LocalDateTime으로 변환되도록 직렬화 설정을 했다.

@Configuration
public class JsonConfig {
    private static final String dateTimeFormat = "yyyy-MM-dd HH:mm:ss";

    @Bean
    public Jackson2ObjectMapperBuilderCustomizer jsonCustomizer() {
        return builder -> {
            builder.serializers(new LocalDateTimeSerializer(DateTimeFormatter.ofPattern(dateTimeFormat)));
        };
    }
}

하지만 JSON 요청에 대해서는 이 설정이 동작하지 않았다.

최신버전의 스프링에서는 application.properties 설정 하나로 이를 관리할 수 있게 지원해준다.

spring:
        mvc:
            format:
            date-time: yyyy-MM-dd HH:mm:ss

• https://shanepark.tistory.com/364

Jackson and ObjectMapper

• https://circlee7.medium.com/spring-boot-jackson-json-xss-%EC%B2%98%EB%A6%AC-fdc85a18e9f2
• https://www.baeldung.com/spring-boot-customize-jackson-objectmapper
• https://interconnection.tistory.com/137
• https://www.baeldung.com/spring-boot-customize-jackson-objectmapper
• https://github.com/eugenp/tutorials/tree/master/spring-boot-modules/spring-boot-data-2
• https://recordsoflife.tistory.com/599

Pagination in QueryDSL

• https://jessyt.tistory.com/55
• https://data-make.tistory.com/671
• https://wildeveloperetrain.tistory.com/135
• https://velog.io/@recordsbeat/QueryDSL%EB%A1%9C-%EA%B2%80%EC%83%89-%ED%8E%98%EC%9D%B4%EC%A7%95-%EC%A0%81%EC%9A%A9%ED%95%98%EA%B8%B0
• https://vladmihalcea.com/pagination-best-practices/
• https://jddng.tistory.com/345
• https://samuel-mumo.medium.com/dynamic-queries-and-querydsl-jpa-support-in-spring-a1b4e233084b

QueryDSL Proejction

• https://cheese10yun.github.io/querydsl-projections/

Dynamic Query with QueryDSL

• https://rieckpil.de/howto-dynamic-sql-querying-pagination-with-querydsl-and-spring-data-jpa/