MessageChannel (Spring Framework 4.3.30.RELEASE API)

所有已知子接口:
PollableChannel, SubscribableChannel
所有已知实现类:
AbstractMessageChannel, AbstractSubscribableChannel, ExecutorSubscribableChannel
```
public interface MessageChannel
```
Defines methods for sending messages.
从以下版本开始:
4.0
作者:
Mark Fisher

字段概要
字段
修饰符和类型字段说明
static long INDEFINITE_TIMEOUT
Constant for sending a message without a prescribed timeout.

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`	`send(Message<?> message)`	Send a `Message` to this channel.
`boolean`	`send(Message<?> message, long timeout)`	Send a message, blocking until either the message is accepted or the specified timeout period elapses.

- 字段详细资料
  - INDEFINITE_TIMEOUT
```
static final long INDEFINITE_TIMEOUT
```
    Constant for sending a message without a prescribed timeout.
    另请参阅:
    常量字段值
- 方法详细资料
  - send
```
boolean send(Message<?> message)
```
    Send a Message to this channel. If the message is sent successfully, the method returns true. If the message cannot be sent due to a non-fatal reason, the method returns false. The method may also throw a RuntimeException in case of non-recoverable errors.
    This method may block indefinitely, depending on the implementation. To provide a maximum wait time, use send(Message, long).
    参数:
    message - the message to send
    返回:
    whether or not the message was sent
  - send
```
boolean send(Message<?> message,
             long timeout)
```
    Send a message, blocking until either the message is accepted or the specified timeout period elapses.
    参数:
    message - the message to send
    timeout - the timeout in milliseconds or INDEFINITE_TIMEOUT
    返回:
    true if the message is sent, false if not including a timeout of an interrupt of the send