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Editorial Team
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Asked: 2026-06-04T00:58:49+00:00

I am configuring Spring integration setting. There are two TCP servers and it’s outbound-channel

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I am configuring Spring integration setting. There are two TCP servers and it’s outbound-channel that shares same channel.

I want the channel to be routed using the header’s value. How can I solve this?

<ip:tcp-connection-factory id="admMsgRcvServer"
    type="server" port="#{afiProperties.admMsgRcvPort}" deserializer="byteArrayCharLengthSerializer"
    serializer="byteArrayCharLengthSerializer" single-use="true" />

<ip:tcp-connection-factory id="simMsgSndClient"
    type="client" host="#{afiProperties.msgSndHost}" port="#{afiProperties.msgSndPort}"
    single-use="true" so-timeout="10000" deserializer="byteArrayCharLengthSerializer"
    serializer="byteArrayCharLengthSerializer" />

<ip:tcp-outbound-channel-adapter id="msgSnd" 
    connection-factory="simMsgRcvServer" channel="afiHeadToHeaderChannel"  />   

<ip:tcp-outbound-channel-adapter id="simMsgSnd"
    channel="afiHeadToHeaderChannel" connection-factory="simMsgSndClient" />
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1 Answer

  1. Editorial Team

    You can use an to route to a channel based on the value of a header.

    <int:header-value-router header-name="foo">
    <int:mapping value="fooValue1" channel="channel1"/>
    <int:mapping value="fooValue2" channel="channel2"/>
</int:header-value-router>

    That said, one of your adapters uses a “server” connection factory; that won’t work as configured. You can’t send arbitrary messages to a connection created by a server connection factory; it usually has to be a reply to an incoming message; there are some advanced techniques to do it, but you always need at least one incoming message first.

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