spring-framework

Spring Framework

Tree: b47cdaa259

Brian Clozel 4d4b343815 Support Content Negotiation with @ExceptionHandler Prior to this commit, `@ExceptionHandler` annotated controller methods could be mapped using the exception type declaration as an annotation attribute, or as a method parameter. While such methods support a wide variety of method arguments and return types, it was not possible to declare the same exception type on different methods (in the same controller/controller advice). This commit adds a new `produces` attribute on `@ExceptionHandler`; with that, applications can vary the HTTP response depending on the exception type and the requested content-type by the client: ``` @ExceptionHandler(produces = "application/json") public ResponseEntity<ErrorMessage> handleJson(IllegalArgumentException exc) { return ResponseEntity.badRequest().body(new ErrorMessage(exc.getMessage(), 42)); } @ExceptionHandler(produces = "text/html") public String handle(IllegalArgumentException exc, Model model) { model.addAttribute("error", new ErrorMessage(exc.getMessage(), 42)); return "errorView"; } ``` This commit implements support in both Spring MVC and Spring WebFlux. Closes gh-31936	2 years ago
..
src	Support Content Negotiation with @ExceptionHandler	2 years ago
spring-webmvc.gradle	Introduce support for webjars-locator-lite	2 years ago

Brian Clozel 4d4b343815 Support Content Negotiation with @ExceptionHandler

Prior to this commit, `@ExceptionHandler` annotated controller methods
could be mapped using the exception type declaration as an annotation
attribute, or as a method parameter.
While such methods support a wide variety of method arguments and return
types, it was not possible to declare the same exception type on
different methods (in the same controller/controller advice).

This commit adds a new `produces` attribute on `@ExceptionHandler`; with
that, applications can vary the HTTP response depending on the exception
type and the requested content-type by the client:

```
@ExceptionHandler(produces = "application/json")
public ResponseEntity<ErrorMessage> handleJson(IllegalArgumentException exc) {
	return ResponseEntity.badRequest().body(new ErrorMessage(exc.getMessage(), 42));
}

@ExceptionHandler(produces = "text/html")
public String handle(IllegalArgumentException exc, Model model) {
	model.addAttribute("error", new ErrorMessage(exc.getMessage(), 42));
	return "errorView";
}
```

This commit implements support in both Spring MVC and Spring WebFlux.

Closes gh-31936

2 years ago

src

Support Content Negotiation with @ExceptionHandler

2 years ago

spring-webmvc.gradle

Introduce support for webjars-locator-lite

2 years ago