类 HandlerResult

构造器详细资料

• HandlerResult

  public HandlerResult​(Object handler,
                       @Nullable
                       Object returnValue,
                       MethodParameter returnType)

  Create a new HandlerResult.

  参数:

  handler - the handler that handled the request

  returnValue - the return value from the handler possibly null

  returnType - the return value type

• HandlerResult

  public HandlerResult​(Object handler,
                       @Nullable
                       Object returnValue,
                       MethodParameter returnType,
                       @Nullable
                       BindingContext context)

  Create a new HandlerResult.

  参数:

  handler - the handler that handled the request

  returnValue - the return value from the handler possibly null

  returnType - the return value type

  context - the binding context used for request handling

方法详细资料

• getHandler

  public Object getHandler()

  Return the handler that handled the request.

• getReturnValue

  @Nullable
  public Object getReturnValue()

  Return the value returned from the handler, if any.

• getReturnType

  public ResolvableType getReturnType()

  Return the type of the value returned from the handler -- e.g. the return type declared on a controller method's signature. Also see getReturnTypeSource() to obtain the underlying MethodParameter for the return type.

• getReturnTypeSource

  public MethodParameter getReturnTypeSource()

  Return the MethodParameter from which returnType was created.

• getBindingContext

  public BindingContext getBindingContext()

  Return the BindingContext used for request handling.

• getModel

  public Model getModel()

  Return the model used for request handling. This is a shortcut for getBindingContext().getModel().

• setExceptionHandler

  public HandlerResult setExceptionHandler​(Function<Throwable,​reactor.core.publisher.Mono<HandlerResult>> function)

  Configure an exception handler that may be used to produce an alternative result when result handling fails. Especially for an async return value errors may occur after the invocation of the handler.

  参数:

  function - the error handler

  返回:

  the current instance

• hasExceptionHandler

  public boolean hasExceptionHandler()

  Whether there is an exception handler.

• applyExceptionHandler

  public reactor.core.publisher.Mono<HandlerResult> applyExceptionHandler​(Throwable failure)

  Apply the exception handler and return the alternative result.

  参数:

  failure - the exception

  返回:

  the new result or the same error if there is no exception handler