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spring-exception's Introduction

스프링 예외 처리 코드 구현

servlet 통한 예외 처리

  • filter
  • interceptor

요청 흐름 (error-ex 요청)

  1. WAS(/error-ex, dispatchType=REQUEST) -> 필터 -> 서블릿 -> 인터셉터 -> 컨트롤러
  2. WAS(여기까지 전파) <- 필터 <- 서블릿 <- 인터셉터 <- 컨트롤러(예외발생)
  3. WAS 오류 페이지 확인
  4. WAS(/error-page/500, dispatchType=ERROR) -> 필터(x) -> 서블릿 -> 인터셉터(x) -> 컨트롤러(/error-page/500) -> View

BasicErrorController 통한 예외 처리

  • 뷰 템플릿 생성 후 자동 적용

API 구현시 예외 처리

  • HandlerExceptionResolver 통한 API 예외 처리 구현
  • ResponseStatusExceptionResolver 통한 API 예외 처리 구현
  • DefaultHandlerExceptionResolver 통한 API 예외 처리 구현
  • ExceptionHandler + ControllerAdvice 통한 API 예외 처리 구현

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