java.lang.Object
- org.springframework.messaging.handler.annotation.reactive.PayloadMethodArgumentResolver

所有已实现的接口:
HandlerMethodArgumentResolver
```
public class PayloadMethodArgumentResolver
extends Object
implements HandlerMethodArgumentResolver
```
A resolver to extract and decode the payload of a message using a Decoder, where the payload is expected to be a Publisher of DataBuffer.
Validation is applied if the method argument is annotated with @javax.validation.Valid or Validated. Validation failure results in an MethodArgumentNotValidException.
This resolver should be ordered last if useDefaultResolution is set to true since in that case it supports all types and does not require the presence of Payload.
从以下版本开始:
5.2
作者:
Rossen Stoyanchev

字段概要
字段
修饰符和类型字段说明
protected Log logger

构造器概要
构造器
构造器说明
PayloadMethodArgumentResolver(List<? extends Decoder<?>> decoders, Validator validator, ReactiveAdapterRegistry registry, boolean useDefaultResolution)

方法概要

所有方法实例方法具体方法
修饰符和类型	方法	说明
`ReactiveAdapterRegistry`	`getAdapterRegistry()`	Return the configured `ReactiveAdapterRegistry`.
`List<Decoder<?>>`	`getDecoders()`	Return a read-only list of the configured decoders.
`protected MimeType`	`getMimeType(Message<?> message)`	Return the mime type for the content.
`Validator`	`getValidator()`	Return the configured validator, if any.
`boolean`	`isUseDefaultResolution()`	Whether this resolver is configured to use default resolution, i.e.
`reactor.core.publisher.Mono<Object>`	`resolveArgument(MethodParameter parameter, Message<?> message)`	Decode the content of the given message payload through a compatible `Decoder`.
`boolean`	`supportsParameter(MethodParameter parameter)`	Whether the given method parameter is supported by this resolver.

从类继承的方法 java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- 字段详细资料
  - logger
```
protected final Log logger
```
- 构造器详细资料
  - PayloadMethodArgumentResolver
```
public PayloadMethodArgumentResolver(List<? extends Decoder<?>> decoders,
                                     @Nullable
                                     Validator validator,
                                     @Nullable
                                     ReactiveAdapterRegistry registry,
                                     boolean useDefaultResolution)
```
- 方法详细资料
  - getDecoders
```
public List<Decoder<?>> getDecoders()
```
    Return a read-only list of the configured decoders.
  - getValidator
```
@Nullable
public Validator getValidator()
```
    Return the configured validator, if any.
  - getAdapterRegistry
```
public ReactiveAdapterRegistry getAdapterRegistry()
```
    Return the configured ReactiveAdapterRegistry.
  - isUseDefaultResolution
```
public boolean isUseDefaultResolution()
```
    Whether this resolver is configured to use default resolution, i.e. works for any argument type regardless of whether @Payload is present or not.
  - supportsParameter
```
public boolean supportsParameter(MethodParameter parameter)
```
    从接口复制的说明: HandlerMethodArgumentResolver
    Whether the given method parameter is supported by this resolver.
    指定者:
    supportsParameter 在接口中 HandlerMethodArgumentResolver
    参数:
    parameter - the method parameter to check
    返回:
    true if this resolver supports the supplied parameter; false otherwise
  - resolveArgument
```
public final reactor.core.publisher.Mono<Object> resolveArgument(MethodParameter parameter,
                                                                 Message<?> message)
```
    Decode the content of the given message payload through a compatible Decoder.
    Validation is applied if the method argument is annotated with @javax.validation.Valid or Validated. Validation failure results in an MethodArgumentNotValidException.
    指定者:
    resolveArgument 在接口中 HandlerMethodArgumentResolver
    参数:
    parameter - the target method argument that we are decoding to
    message - the message from which the content was extracted
    返回:
    a Mono with the result of argument resolution
    另请参阅:
    extractContent(MethodParameter, Message), getMimeType(Message)
  - getMimeType
```
@Nullable
protected MimeType getMimeType(Message<?> message)
```
    Return the mime type for the content. By default this method checks the MessageHeaders.CONTENT_TYPE header expecting to find a MimeType value or a String to parse to a MimeType.
    参数:
    message - the input message

类 PayloadMethodArgumentResolver

字段概要

构造器概要

方法概要

从类继承的方法 java.lang.Object

字段详细资料

logger

构造器详细资料

PayloadMethodArgumentResolver

方法详细资料

getDecoders

getValidator

getAdapterRegistry

isUseDefaultResolution

supportsParameter

resolveArgument

getMimeType