类 AbstractGenericHttpMessageConverter<T>

构造器详细资料

• AbstractGenericHttpMessageConverter

  protected AbstractGenericHttpMessageConverter()

  Construct an AbstractGenericHttpMessageConverter with no supported media types.

  另请参阅:

  AbstractHttpMessageConverter.setSupportedMediaTypes(java.util.List<org.springframework.http.MediaType>)

• AbstractGenericHttpMessageConverter

  protected AbstractGenericHttpMessageConverter​(MediaType supportedMediaType)

  Construct an AbstractGenericHttpMessageConverter with one supported media type.

  参数:

  supportedMediaType - the supported media type

• AbstractGenericHttpMessageConverter

  protected AbstractGenericHttpMessageConverter​(MediaType... supportedMediaTypes)

  Construct an AbstractGenericHttpMessageConverter with multiple supported media type.

  参数:

  supportedMediaTypes - the supported media types

方法详细资料

• supports

  protected boolean supports​(Class<?> clazz)

  从类复制的说明: AbstractHttpMessageConverter
  Indicates whether the given class is supported by this converter.

  指定者:

  supports 在类中 AbstractHttpMessageConverter<T>

  参数:

  clazz - the class to test for support

  返回:

  true if supported; false otherwise

• canRead

  public boolean canRead​(Type type,
                         Class<?> contextClass,
                         MediaType mediaType)

  从接口复制的说明: GenericHttpMessageConverter
  Indicates whether the given type can be read by this converter. This method should perform the same checks than HttpMessageConverter.canRead(Class, MediaType) with additional ones related to the generic type.

  指定者:

  canRead 在接口中 GenericHttpMessageConverter<T>

  参数:

  type - the (potentially generic) type to test for readability

  contextClass - a context class for the target type, for example a class in which the target type appears in a method signature (can be null)

  mediaType - the media type to read, can be null if not specified. Typically the value of a Content-Type header.

  返回:

  true if readable; false otherwise

• canWrite

  public boolean canWrite​(Type type,
                          Class<?> clazz,
                          MediaType mediaType)

  从接口复制的说明: GenericHttpMessageConverter
  Indicates whether the given class can be written by this converter.

  This method should perform the same checks than HttpMessageConverter.canWrite(Class, MediaType) with additional ones related to the generic type.

  指定者:

  canWrite 在接口中 GenericHttpMessageConverter<T>

  参数:

  type - the (potentially generic) type to test for writability (can be null if not specified)

  clazz - the source object class to test for writability

  mediaType - the media type to write (can be null if not specified); typically the value of an Accept header.

  返回:

  true if writable; false otherwise

• write

  public final void write​(T t,
                          Type type,
                          MediaType contentType,
                          HttpOutputMessage outputMessage)
                   throws IOException,
                          HttpMessageNotWritableException

  This implementation sets the default headers by calling AbstractHttpMessageConverter.addDefaultHeaders(org.springframework.http.HttpHeaders, T, org.springframework.http.MediaType), and then calls writeInternal(T, org.springframework.http.HttpOutputMessage).

  指定者:

  write 在接口中 GenericHttpMessageConverter<T>

  参数:

  t - the object to write to the output message. The type of this object must have previously been passed to the canWrite method of this interface, which must have returned true.

  type - the (potentially generic) type of object to write. This type must have previously been passed to the canWrite method of this interface, which must have returned true. Can be null if not specified.

  contentType - the content type to use when writing. May be null to indicate that the default content type of the converter must be used. If not null, this media type must have previously been passed to the canWrite method of this interface, which must have returned true.

  outputMessage - the message to write to

  抛出:

  IOException - in case of I/O errors

  HttpMessageNotWritableException - in case of conversion errors

• writeInternal

  protected void writeInternal​(T t,
                               HttpOutputMessage outputMessage)
                        throws IOException,
                               HttpMessageNotWritableException

  从类复制的说明: AbstractHttpMessageConverter
  Abstract template method that writes the actual body. Invoked from AbstractHttpMessageConverter.write(T, org.springframework.http.MediaType, org.springframework.http.HttpOutputMessage).

  指定者:

  writeInternal 在类中 AbstractHttpMessageConverter<T>

  参数:

  t - the object to write to the output message

  outputMessage - the HTTP output message to write to

  抛出:

  IOException - in case of I/O errors

  HttpMessageNotWritableException - in case of conversion errors

• writeInternal

  protected abstract void writeInternal​(T t,
                                        Type type,
                                        HttpOutputMessage outputMessage)
                                 throws IOException,
                                        HttpMessageNotWritableException

  Abstract template method that writes the actual body. Invoked from write(T, java.lang.reflect.Type, org.springframework.http.MediaType, org.springframework.http.HttpOutputMessage).

  参数:

  t - the object to write to the output message

  type - the type of object to write (may be null)

  outputMessage - the HTTP output message to write to

  抛出:

  IOException - in case of I/O errors

  HttpMessageNotWritableException - in case of conversion errors