java.lang.Object
- org.springframework.http.converter.AbstractHttpMessageConverter<T>
- - org.springframework.http.converter.AbstractGenericHttpMessageConverter<Object>
  - - org.springframework.http.converter.json.AbstractJsonHttpMessageConverter

所有已实现的接口:
GenericHttpMessageConverter<Object>, HttpMessageConverter<Object>
直接已知子类:
GsonHttpMessageConverter, JsonbHttpMessageConverter
```
public abstract class AbstractJsonHttpMessageConverter
extends AbstractGenericHttpMessageConverter<Object>
```
Common base class for plain JSON converters, e.g. Gson and JSON-B.
Note that the Jackson converters have a dedicated class hierarchy due to their multi-format support.
从以下版本开始:
5.0
作者:
Juergen Hoeller
另请参阅:
GsonHttpMessageConverter, JsonbHttpMessageConverter, readInternal(Type, Reader), writeInternal(Object, Type, Writer)

字段概要
字段
修饰符和类型字段说明
static Charset DEFAULT_CHARSET
The default charset used by the converter.
- 从类继承的字段 org.springframework.http.converter.AbstractHttpMessageConverter
  logger

构造器概要
构造器
构造器说明
AbstractJsonHttpMessageConverter()

方法概要

所有方法实例方法抽象方法具体方法
修饰符和类型	方法	说明
`Object`	`read(Type type, Class<?> contextClass, HttpInputMessage inputMessage)`	Read an object of the given type form the given input message, and returns it.
`protected Object`	`readInternal(Class<?> clazz, HttpInputMessage inputMessage)`	Abstract template method that reads the actual object.
`protected abstract Object`	`readInternal(Type resolvedType, Reader reader)`	Template method that reads the JSON-bound object from the given `Reader`.
`void`	`setJsonPrefix(String jsonPrefix)`	Specify a custom prefix to use for JSON output.
`void`	`setPrefixJson(boolean prefixJson)`	Indicate whether the JSON output by this view should be prefixed with ")]}', ".
`protected abstract void`	`writeInternal(Object object, Type type, Writer writer)`	Template method that writes the JSON-bound object to the given `Writer`.
`protected void`	`writeInternal(Object object, Type type, HttpOutputMessage outputMessage)`	Abstract template method that writes the actual body.

从类继承的方法 org.springframework.http.converter.AbstractGenericHttpMessageConverter
canRead, canWrite, supports, write, writeInternal

从类继承的方法 org.springframework.http.converter.AbstractHttpMessageConverter
addDefaultHeaders, canRead, canRead, canWrite, canWrite, getContentLength, getDefaultCharset, getDefaultContentType, getSupportedMediaTypes, read, setDefaultCharset, setSupportedMediaTypes, write

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

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

- 字段详细资料
  - DEFAULT_CHARSET
```
public static final Charset DEFAULT_CHARSET
```
    The default charset used by the converter.
- 构造器详细资料
  - AbstractJsonHttpMessageConverter
```
public AbstractJsonHttpMessageConverter()
```
- 方法详细资料
  - setJsonPrefix
```
public void setJsonPrefix(String jsonPrefix)
```
    Specify a custom prefix to use for JSON output. Default is none.
    另请参阅:
    setPrefixJson(boolean)
  - setPrefixJson
```
public void setPrefixJson(boolean prefixJson)
```
    Indicate whether the JSON output by this view should be prefixed with ")]}', ". Default is false.
    Prefixing the JSON string in this manner is used to help prevent JSON Hijacking. The prefix renders the string syntactically invalid as a script so that it cannot be hijacked. This prefix should be stripped before parsing the string as JSON.
    另请参阅:
    setJsonPrefix(java.lang.String)
  - read
```
public final Object read(Type type,
                         @Nullable
                         Class<?> contextClass,
                         HttpInputMessage inputMessage)
                  throws IOException,
                         HttpMessageNotReadableException
```
    从接口复制的说明: GenericHttpMessageConverter
    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
  - readInternal
```
protected final Object readInternal(Class<?> clazz,
                                    HttpInputMessage inputMessage)
                             throws IOException,
                                    HttpMessageNotReadableException
```
    从类复制的说明: AbstractHttpMessageConverter
    Abstract template method that reads the actual object. Invoked from AbstractHttpMessageConverter.read(java.lang.Class<? extends T>, org.springframework.http.HttpInputMessage).
    指定者:
    readInternal 在类中 AbstractHttpMessageConverter<Object>
    参数:
    clazz - the type of object to return
    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
  - writeInternal
```
protected final void writeInternal(Object object,
                                   @Nullable
                                   Type type,
                                   HttpOutputMessage outputMessage)
                            throws IOException,
                                   HttpMessageNotWritableException
```
    从类复制的说明: AbstractGenericHttpMessageConverter
    Abstract template method that writes the actual body. Invoked from AbstractGenericHttpMessageConverter.write(T, java.lang.reflect.Type, org.springframework.http.MediaType, org.springframework.http.HttpOutputMessage).
    指定者:
    writeInternal 在类中 AbstractGenericHttpMessageConverter<Object>
    参数:
    object - 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
  - readInternal
```
protected abstract Object readInternal(Type resolvedType,
                                       Reader reader)
                                throws Exception
```
    Template method that reads the JSON-bound object from the given Reader.
    参数:
    resolvedType - the resolved generic type
    reader - the Reader to use
    返回:
    the JSON-bound object
    抛出:
    Exception - in case of read/parse failures
  - writeInternal
```
protected abstract void writeInternal(Object object,
                                      @Nullable
                                      Type type,
                                      Writer writer)
                               throws Exception
```
    Template method that writes the JSON-bound object to the given Writer.
    参数:
    object - the object to write to the output message
    type - the type of object to write (may be null)
    writer - the Writer to use
    抛出:
    Exception - in case of write failures

类 AbstractJsonHttpMessageConverter

字段概要

从类继承的字段 org.springframework.http.converter.AbstractHttpMessageConverter

构造器概要

方法概要

从类继承的方法 org.springframework.http.converter.AbstractGenericHttpMessageConverter

从类继承的方法 org.springframework.http.converter.AbstractHttpMessageConverter

从类继承的方法 java.lang.Object

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

字段详细资料

DEFAULT_CHARSET

构造器详细资料

AbstractJsonHttpMessageConverter

方法详细资料

setJsonPrefix

setPrefixJson

read

readInternal

writeInternal

readInternal

writeInternal