org.springframework.web.reactive.result.method.annotation

Class RequestBodyArgumentResolver

java.lang.Object

org.springframework.web.reactive.result.method.annotation.AbstractMessageReaderArgumentResolver

org.springframework.web.reactive.result.method.annotation.RequestBodyArgumentResolver

All Implemented Interfaces:

HandlerMethodArgumentResolver

public class RequestBodyArgumentResolver
extends AbstractMessageReaderArgumentResolver
implements HandlerMethodArgumentResolver

Resolves method arguments annotated with @RequestBody by reading the body of the request through a compatible HttpMessageReader.

An @RequestBody method argument is also validated if it is annotated with @javax.validation.Valid or Validated. Validation failure results in an ServerWebInputException.

Since:

5.0

Author:

Sebastien Deleuze, Stephane Maldini, Rossen Stoyanchev

Constructor Summary

Constructors

Constructor and Description
RequestBodyArgumentResolver(java.util.List<HttpMessageReader<?>> readers) Constructor with HttpMessageReader's and a Validator.
RequestBodyArgumentResolver(java.util.List<HttpMessageReader<?>> readers, ReactiveAdapterRegistry registry) Constructor that also accepts a ReactiveAdapterRegistry.

Method Summary

Modifier and Type	Method and Description
<any>	resolveArgument(MethodParameter param, BindingContext bindingContext, ServerWebExchange exchange) The returned Mono may produce one or zero values if the argument does not resolve to any value, which will result in null passed as the argument value.
boolean	supportsParameter(MethodParameter parameter)

Methods inherited from class org.springframework.web.reactive.result.method.annotation.AbstractMessageReaderArgumentResolver

checkRequired, extractValidationHints, getAdapterRegistry, getMessageReaders, getRequiredBodyError, readBody, validate, wrapReadError

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

RequestBodyArgumentResolver

public RequestBodyArgumentResolver(java.util.List<HttpMessageReader<?>> readers)

Constructor with HttpMessageReader's and a Validator.

Parameters:

readers - readers for de-serializing the request body with

RequestBodyArgumentResolver

public RequestBodyArgumentResolver(java.util.List<HttpMessageReader<?>> readers,
                                   ReactiveAdapterRegistry registry)

Constructor that also accepts a ReactiveAdapterRegistry.

Parameters:

readers - readers for de-serializing the request body with

registry - for adapting to other reactive types from Flux and Mono

Method Detail

supportsParameter

public boolean supportsParameter(MethodParameter parameter)

Specified by:

supportsParameter in interface HandlerMethodArgumentResolver

resolveArgument

public <any> resolveArgument(MethodParameter param,
                             BindingContext bindingContext,
                             ServerWebExchange exchange)

Description copied from interface: HandlerMethodArgumentResolver

The returned Mono may produce one or zero values if the argument does not resolve to any value, which will result in null passed as the argument value.

Specified by:

resolveArgument in interface HandlerMethodArgumentResolver

Parameters:

param - the method parameter

bindingContext - the binding context to use

exchange - the current exchange