- Server#DIP#Dependency Inversion#Dependency Inversion Principle#의존성 역전 원칙
- Server#spring#async#logging#mdc#threadLocal#TaskDecorator#context#batch#thread
- Server#hibernate#lombok#annotation#@Data#ORM
- Server#mysql#aws#rds#utf8#utf8mb4#emoji#이모지
- Server#mysql#datetime#timestamp
- Server#Spring#Java#Annotation#Reflection#Entity
- Server#Spring#Async#Hibernate#Thread#Transaction