output channel & default output channel for xpath router

How do you specify an output channel for xpath-router when the xpath expression is met. And when the condition is not met, how can I specify one or more channels to be the recipients

If I understand your question correctly then all you need is channel-resolver. If you look at the XML examples (BookOrderProcessingSample). In this example MapBasedChannelResolver is used which does exactly what you are asking, by routing to different channels based on true/false evaluation of XPath expression

Code:

---

. . . .
<map>
        <entry key="true" value-ref="warehouseDispatchChannel" />
        <entry key="false" value-ref="outOfStockChannel" />
</map>
. . . .

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