类 AbstractMessageConverterMethodArgumentResolver

字段详细资料

• logger

  protected final Log logger

• messageConverters

  protected final List<HttpMessageConverter<?>> messageConverters

• allSupportedMediaTypes

  protected final List<MediaType> allSupportedMediaTypes

构造器详细资料

• AbstractMessageConverterMethodArgumentResolver

  public AbstractMessageConverterMethodArgumentResolver​(List<HttpMessageConverter<?>> converters)

  Basic constructor with converters only.

• AbstractMessageConverterMethodArgumentResolver

  public AbstractMessageConverterMethodArgumentResolver​(List<HttpMessageConverter<?>> converters,
                                                        @Nullable
                                                        List<Object> requestResponseBodyAdvice)

  Constructor with converters and Request~ and ResponseBodyAdvice.

  从以下版本开始:

  4.2

方法详细资料

• readWithMessageConverters

  @Nullable
  protected <T> Object readWithMessageConverters​(NativeWebRequest webRequest,
                                                 MethodParameter parameter,
                                                 Type paramType)
                                          throws IOException,
                                                 HttpMediaTypeNotSupportedException,
                                                 HttpMessageNotReadableException

  Create the method argument value of the expected parameter type by reading from the given request.

  类型参数:

  T - the expected type of the argument value to be created

  参数:

  webRequest - the current request

  parameter - the method parameter descriptor (may be null)

  paramType - the type of the argument value to be created

  返回:

  the created method argument value

  抛出:

  IOException - if the reading from the request fails

  HttpMediaTypeNotSupportedException - if no suitable message converter is found

  HttpMessageNotReadableException

• readWithMessageConverters

  @Nullable
  protected <T> Object readWithMessageConverters​(HttpInputMessage inputMessage,
                                                 MethodParameter parameter,
                                                 Type targetType)
                                          throws IOException,
                                                 HttpMediaTypeNotSupportedException,
                                                 HttpMessageNotReadableException

  Create the method argument value of the expected parameter type by reading from the given HttpInputMessage.

  类型参数:

  T - the expected type of the argument value to be created

  参数:

  inputMessage - the HTTP input message representing the current request

  parameter - the method parameter descriptor

  targetType - the target type, not necessarily the same as the method parameter type, e.g. for HttpEntity<String>.

  返回:

  the created method argument value

  抛出:

  IOException - if the reading from the request fails

  HttpMediaTypeNotSupportedException - if no suitable message converter is found

  HttpMessageNotReadableException

• createInputMessage

  protected ServletServerHttpRequest createInputMessage​(NativeWebRequest webRequest)

  Create a new HttpInputMessage from the given NativeWebRequest.

  参数:

  webRequest - the web request to create an input message from

  返回:

  the input message

• validateIfApplicable

  protected void validateIfApplicable​(WebDataBinder binder,
                                      MethodParameter parameter)

  Validate the binding target if applicable.

  The default implementation checks for @javax.validation.Valid, Spring's Validated, and custom annotations whose name starts with "Valid".

  参数:

  binder - the DataBinder to be used

  parameter - the method parameter descriptor

  从以下版本开始:

  4.1.5

  另请参阅:

  isBindExceptionRequired(org.springframework.web.bind.WebDataBinder, org.springframework.core.MethodParameter)

• isBindExceptionRequired

  protected boolean isBindExceptionRequired​(WebDataBinder binder,
                                            MethodParameter parameter)

  Whether to raise a fatal bind exception on validation errors.

  参数:

  binder - the data binder used to perform data binding

  parameter - the method parameter descriptor

  返回:

  true if the next method argument is not of type Errors

  从以下版本开始:

  4.1.5

• adaptArgumentIfNecessary

  @Nullable
  protected Object adaptArgumentIfNecessary​(@Nullable
                                            Object arg,
                                            MethodParameter parameter)

  Adapt the given argument against the method parameter, if necessary.

  参数:

  arg - the resolved argument

  parameter - the method parameter descriptor

  返回:

  the adapted argument, or the original resolved argument as-is

  从以下版本开始:

  4.3.5