通过弹簧集成注释将多个通道发送到单个通道

bluth 发表于 Dev

bluth

如何在不使用XML的情况下通过Spring集成将2个通道输出到单个通道。与以下问题类似，多个频道的消息进入单个频道

我的上下文中有2个PollableChannel Bean，我希望将消息从这两个（非聚合的）路由到单个@ServiceActivator，即完成类似以下操作：

@Bean("Channel1") PollableChannel c1() {...}
@Bean("Channel2") PollableChannel c2() {...}

?? How to interleave/combine Channel1 and Channel2 into a single channel

...
@ServiceActivator(inputChannel = "Channel1and2")
void handle(msg: MyMessage) {...}

阿尔特姆·比兰（Artem Bilan）

@Bean("Channel1") 
@BridgeTo("Channel1and2")
PollableChannel c1() {...}

@Bean("Channel2") 
@BridgeTo("Channel1and2")
PollableChannel c2() {...}

注意te@BridgeTo注释。从其JavaDocs：

* Messaging Annotation to mark a {@link org.springframework.context.annotation.Bean}
* method for a {@link org.springframework.messaging.MessageChannel} to produce a
* {@link org.springframework.integration.handler.BridgeHandler} and Consumer Endpoint.
* <p>
* The {@link org.springframework.messaging.MessageChannel} {@link org.springframework.context.annotation.Bean}
* marked with this annotation is used as the {@code inputChannel} for the
* {@link org.springframework.integration.endpoint.AbstractEndpoint}
* and determines the type of endpoint -
* {@link org.springframework.integration.endpoint.EventDrivenConsumer} or
* {@link org.springframework.integration.endpoint.PollingConsumer}.

您还可以考虑使用@Polleron @BridgeTo，因为您的输入通道是PollableChannel。

关于此问题的参考手册：http : //docs.spring.io/spring-integration/docs/latest-ga/reference/html/configuration.html#_creating_a_bridge_with_annotations

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