所有超级接口:
HttpMessageConverter<T>
所有已知实现类:
AbstractGenericHttpMessageConverter, AbstractJackson2HttpMessageConverter, GsonHttpMessageConverter, Jaxb2CollectionHttpMessageConverter, MappingJackson2HttpMessageConverter, MappingJackson2XmlHttpMessageConverter, ResourceRegionHttpMessageConverter
```
public interface GenericHttpMessageConverter<T>
extends HttpMessageConverter<T>
```
A specialization of HttpMessageConverter that can convert an HTTP request into a target object of a specified generic type and a source object of a specified generic type into an HTTP response.
从以下版本开始:
3.2
作者:
Arjen Poutsma, Rossen Stoyanchev, Sebastien Deleuze
另请参阅:
ParameterizedTypeReference

方法概要

所有方法实例方法抽象方法
修饰符和类型	方法	说明
`boolean`	`canRead(Type type, Class<?> contextClass, MediaType mediaType)`	Indicates whether the given type can be read by this converter.
`boolean`	`canWrite(Type type, Class<?> clazz, MediaType mediaType)`	Indicates whether the given class can be written by this converter.
`T`	`read(Type type, Class<?> contextClass, HttpInputMessage inputMessage)`	Read an object of the given type form the given input message, and returns it.
`void`	`write(T t, Type type, MediaType contentType, HttpOutputMessage outputMessage)`	Write an given object to the given output message.

从接口继承的方法 org.springframework.http.converter.HttpMessageConverter
canRead, canWrite, getSupportedMediaTypes, read, write

- 方法详细资料
  - canRead
```
boolean canRead(Type type,
                Class<?> contextClass,
                MediaType mediaType)
```
    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.
    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
  - read
```
T read(Type type,
       Class<?> contextClass,
       HttpInputMessage inputMessage)
throws IOException,
       HttpMessageNotReadableException
```
    Read an object of the given type form the given input message, and returns it.
    参数:
    type - the (potentially generic) type of object to return. This type must have previously been passed to the canRead method of this interface, which must have returned true.
    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)
    inputMessage - the HTTP input message to read from
    返回:
    the converted object
    抛出:
    IOException - in case of I/O errors
    HttpMessageNotReadableException - in case of conversion errors
  - canWrite
```
boolean canWrite(Type type,
                 Class<?> clazz,
                 MediaType mediaType)
```
    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.
    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
    从以下版本开始:
    4.2
  - write
```
void write(T t,
           Type type,
           MediaType contentType,
           HttpOutputMessage outputMessage)
    throws IOException,
           HttpMessageNotWritableException
```
    Write an given object to the given output message.
    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
    从以下版本开始:
    4.2

接口 GenericHttpMessageConverter<T>

方法概要

从接口继承的方法 org.springframework.http.converter.HttpMessageConverter

方法详细资料

canRead

read

canWrite

write