在Apache Camel中使用动态路由器与DSL选择有什么影响？

Question

It appears that a Dynamic Router can be used in much the same way as choice in a route. Furthermore, in the Java DSL choice() can be rather dynamic based on changing headers or properties in routes.

Are there guidelines for when either one should be used? Likewise, are there performance implications in using one over the other?

Answer 1

in short...

• the choice is used to perform conditional logic from within a route
• the dynamic router is used to route messages to other routes/endpoints dynamically

that said, you can use the choice EIP to route to different endpoints based on content, but that endpoint list would be statically defined in the route. If you need to determine the routing endpoints at runtime, use dynamic router or recipient list

performance characteristics should be similar, but are mostly determined by the Expression used to perform your content based routing (headers faster, xpath slower, etc)