Provide mechanism for just mapping an exception to a status code and use the default error handling afterwards

[mvitz]

If an exception is directly annotated with @ResponseStatus(HttpStatus.NOT_FOUND) the default error page handling works and a provided template at error/404.html is rendered.

However when using a custom @ControllerAdvice for exception mapping the template isn't rendered because it's now the developers responsibility.

What I want is a mechanisms which just allows me to map any exception (which I can not or do not want to annotate) to a HTTP status code and let the default error handling take over the template resolution.

The application at https://github.com/mvitz/spring-boot-exception-handling can be used to demonstrate the current behaviour.

[mvitz]

I just found #7329 which is in some way related.

[bclozel]

Indeed, this is a duplicate of #7329 - closing this now.

[philwebb]

I'm not sure that this is exactly a duplicate of #7329. It would be nice to do something to help with this (even if it's just better documentation).

[ZaitsevY]

@ExceptionHandler(CustomException.class)
void handleCustomExcepption(HttpServletResponse response) throws IOException {
    response.sendError(HttpStatus.NO_CONTENT.value());
}

won't produce default error message as of Spring Boot 1.5.5

Update: my own fault (or misundestanding): no response was generated for NO_CONTENT (204) status code, after switching to any other code the response is there.

[wilkinsona]

@ZaitsevY You've already said that once. There's no need to spam multiple issues with the same comment.

[ZaitsevY]

@wilkinsona excuse, please, I duplicated after having understood that the first comment went to the closed issue.

[bclozel]

I think this has been superseded by the ProblemDetail support in #32634. This will be expanded as well in #19525.

[mvitz]

@bclozel I'm uncertain if this is really superseded by the ProblemDetail support because the original problem is still present with Spring Boot 3.0.2.

Given the following Spring Boot 3.0.2 application

@SpringBootApplication
public class Application {

    public static void main(String[] args) {
        SpringApplication.run(Application.class, args);
    }

    @ResponseStatus(NOT_FOUND)
    public static class CustomExceptionWithResponseStatusAnnotation extends RuntimeException {}

    public static class CustomExceptionWithoutResponseStatusAnnotation extends RuntimeException {}

    @ControllerAdvice
    public static class ErrorHandler {

        @ExceptionHandler(CustomExceptionWithoutResponseStatusAnnotation.class)
        @ResponseStatus(NOT_FOUND)
        public void handleCustomExceptionWithoutResponseStatusAnnotation() {}
    }

    @RestController
    public static class MyController {

        @GetMapping("/withAnnotation")
        public String withAnnotation() {
            throw new CustomExceptionWithResponseStatusAnnotation();
        }

        @GetMapping("/withoutAnnotation")
        public String withoutAnnotation() {
            throw new CustomExceptionWithoutResponseStatusAnnotation();
        }
    }
}

Hitting /withoutAnnotation which throws the Exception handled by my custom ControllerAdvice does not return a body although the /withAnnotation which throws the Exception that is directly annotated with @ResponseStatus works and returns the problem details JSON.

[bclozel]

@mvitz You're right, this will be dealt with #33885