如何在Spring集成ServiceActivator上触发多个outputchannel？

<beans xmlns="http://www.springframework.org/schema/beans"
       xmlns:integration="http://www.springframework.org/schema/integration"
       xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
       xsi:schemaLocation="http://www.springframework.org/schema/beans
                           http://www.springframework.org/schema/beans/spring-beans.xsd
                           http://www.springframework.org/schema/integration
                           http://www.springframework.org/schema/integration/spring-integration.xsd">

    <integration:publish-subscribe-channel id="outputChannel1"/>
    <integration:publish-subscribe-channel id="outputChannel2"/>
    <integration:publish-subscribe-channel id="outputChannel3"/>

    <!-- 其他配置 -->

</beans>

<int:recipient-list-router input-channel="inputChannel">
    <int:recipient channel="outputChannel1"/>
    <int:recipient channel="outputChannel2"/>
    <int:recipient channel="outputChannel3"/>
</int:recipient-list-router>

<int:service-activator input-channel="inputChannel" ref="myService" method="processMessage"/>

<bean id="myService" class="com.example.MyService"/>

public class MyService {
    public void processMessage(Message<?> message) {
        // 处理消息的逻辑

        // 将消息发送到多个output channel
        // 可以使用MessageChannel的send方法发送消息
        outputChannel1.send(message);
        outputChannel2.send(message);
        outputChannel3.send(message);
    }
}