org.springframework.web.reactive

public Interface DispatchExceptionHandler

Known Direct Implementers: org.springframework.web.reactive.result.method.annotation.RequestMappingHandlerAdapter
Imports: reactor.core.publisher.Mono, org.springframework.web.server.ServerWebExchange

Contract to map a Throwable to a HandlerResult.

Supported by DispatcherHandler when used in the following ways:

Set on a HandlerResult, allowing a HandlerAdapter to apply its exception handling to deferred exceptions from asynchronous return values, and to response rendering.
Implemented by a HandlerAdapter in order to handle exceptions that occur before a request is mapped to a handler, or for unhandled errors from a handler.

Author: Rossen Stoyanchev
Since: 6.0
See Also: HandlerAdapter, HandlerResult#setExceptionHandler(DispatchExceptionHandler)

Method Summary

Modifier and Type	Method and Description
public Mono<HandlerResult>	Returns: a `Mono` that emits a `HandlerResult` or an error signal with the original exception if it remains not handled handleError(ServerWebExchange the current exchange exchange, Throwable the exception to handle ex) Handle the given exception, mapping it to a `HandlerResult` that can then be used to render an HTTP response.

handleError back to summary

handleError	back to summary
public Mono<HandlerResult> handleError(ServerWebExchange exchange, Throwable ex) Handle the given exception, mapping it to a `HandlerResult` that can then be used to render an HTTP response. Parameters exchange:ServerWebExchange the current exchange ex:Throwable the exception to handle Returns:Mono<HandlerResult> a `Mono` that emits a `HandlerResult` or an error signal with the original exception if it remains not handled

Handle the given exception, mapping it to a HandlerResult that can then be used to render an HTTP response.

Parameters

a Mono that emits a HandlerResult or an error signal with the original exception if it remains not handled