java.lang.Object
- org.springframework.messaging.converter.CompositeMessageConverter

所有已实现的接口:
MessageConverter, SmartMessageConverter
```
public class CompositeMessageConverter
extends Object
implements SmartMessageConverter
```
A MessageConverter that delegates to a list of registered converters to be invoked until one of them returns a non-null result.
As of 4.2.1, this composite converter implements SmartMessageConverter in order to support the delegation of conversion hints.
从以下版本开始:
4.0
作者:
Rossen Stoyanchev, Juergen Hoeller

构造器概要
构造器
构造器说明
CompositeMessageConverter(Collection<MessageConverter> converters)
Create an instance with the given converters.

方法概要

所有方法实例方法具体方法
修饰符和类型	方法	说明
`Object`	`fromMessage(Message<?> message, Class<?> targetClass)`	Convert the payload of a `Message` from a serialized form to a typed Object of the specified target class.
`Object`	`fromMessage(Message<?> message, Class<?> targetClass, Object conversionHint)`	A variant of `MessageConverter.fromMessage(Message, Class)` which takes an extra conversion context as an argument, allowing to take e.g. annotations on a payload parameter into account.
`List<MessageConverter>`	`getConverters()`	Return the underlying list of delegate converters.
`Message<?>`	`toMessage(Object payload, MessageHeaders headers)`	Create a `Message` whose payload is the result of converting the given payload Object to serialized form.
`Message<?>`	`toMessage(Object payload, MessageHeaders headers, Object conversionHint)`	A variant of `MessageConverter.toMessage(Object, MessageHeaders)` which takes an extra conversion context as an argument, allowing to take e.g. annotations on a return type into account.
`String`	`toString()`

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

- 构造器详细资料
  - CompositeMessageConverter
```
public CompositeMessageConverter(Collection<MessageConverter> converters)
```
    Create an instance with the given converters.
- 方法详细资料
  - fromMessage
```
public Object fromMessage(Message<?> message,
                          Class<?> targetClass)
```
    从接口复制的说明: MessageConverter
    Convert the payload of a Message from a serialized form to a typed Object of the specified target class. The MessageHeaders.CONTENT_TYPE header should indicate the MIME type to convert from.
    If the converter does not support the specified media type or cannot perform the conversion, it should return null.
    指定者:
    fromMessage 在接口中 MessageConverter
    参数:
    message - the input message
    targetClass - the target class for the conversion
    返回:
    the result of the conversion, or null if the converter cannot perform the conversion
  - fromMessage
```
public Object fromMessage(Message<?> message,
                          Class<?> targetClass,
                          Object conversionHint)
```
    从接口复制的说明: SmartMessageConverter
    A variant of MessageConverter.fromMessage(Message, Class) which takes an extra conversion context as an argument, allowing to take e.g. annotations on a payload parameter into account.
    指定者:
    fromMessage 在接口中 SmartMessageConverter
    参数:
    message - the input message
    targetClass - the target class for the conversion
    conversionHint - an extra object passed to the MessageConverter, e.g. the associated MethodParameter (may be null}
    返回:
    the result of the conversion, or null if the converter cannot perform the conversion
    另请参阅:
    MessageConverter.fromMessage(Message, Class)
  - toMessage
```
public Message<?> toMessage(Object payload,
                            MessageHeaders headers)
```
    从接口复制的说明: MessageConverter
    Create a Message whose payload is the result of converting the given payload Object to serialized form. The optional MessageHeaders parameter may contain a MessageHeaders.CONTENT_TYPE header to specify the target media type for the conversion and it may contain additional headers to be added to the message.
    If the converter does not support the specified media type or cannot perform the conversion, it should return null.
    指定者:
    toMessage 在接口中 MessageConverter
    参数:
    payload - the Object to convert
    headers - optional headers for the message (may be null)
    返回:
    the new message, or null if the converter does not support the Object type or the target media type
  - toMessage
```
public Message<?> toMessage(Object payload,
                            MessageHeaders headers,
                            Object conversionHint)
```
    从接口复制的说明: SmartMessageConverter
    A variant of MessageConverter.toMessage(Object, MessageHeaders) which takes an extra conversion context as an argument, allowing to take e.g. annotations on a return type into account.
    指定者:
    toMessage 在接口中 SmartMessageConverter
    参数:
    payload - the Object to convert
    headers - optional headers for the message (may be null)
    conversionHint - an extra object passed to the MessageConverter, e.g. the associated MethodParameter (may be null}
    返回:
    the new message, or null if the converter does not support the Object type or the target media type
    另请参阅:
    MessageConverter.toMessage(Object, MessageHeaders)
  - getConverters
```
public List<MessageConverter> getConverters()
```
    Return the underlying list of delegate converters.
  - toString
```
public String toString()
```
    覆盖:
    toString 在类中 Object

类 CompositeMessageConverter

构造器概要

方法概要

从类继承的方法 java.lang.Object

构造器详细资料

CompositeMessageConverter

方法详细资料

fromMessage

fromMessage

toMessage

toMessage

getConverters

toString