Spring集成网关路由

我对spring集成有一个问题,基本上我正在尝试创建chain,该chain将调用多个服务中的一个,并将结果返回给chain gateway进行进一步处理。

<int:chain input-channel="inputChannel" output-channel="outputChannel">
    <int:header-enricher>
        <int:header name="temporalPayload" expression="payload"/>
        <int:header name="matcher" value="other" />
    </int:header-enricher>
    <int:gateway request-channel="routerChannel" reply-channel="replyChannel" error-channel="errorChannel"/>
    <int:transformer expression="headers.temporalPayload"/>
</int:chain>

<int:router input-channel="routerChannel" expression="headers.matcher.matches('(test)|(test2)')?headers.matcher:'other'" >
    <int:mapping value="test1" channel="channel1"/>
    <int:mapping value="test2" channel="channel2"/>
    <int:mapping value="other" channel="channel3" />
</int:router>

<int:service-activator input-channel="channel1" output-channel="replyChannel" ref="service1" method="handle"/>
<int:service-activator input-channel="channel2" output-channel="replyChannel" ref="service2" method="handle"/>
<int:service-activator input-channel="channel3" output-channel="replyChannel" ref="service3" method="handle"/>

网关无法从service activator接收对通道“replyChannel”的回复。What I'am doing wrong?我做错了什么?