java - How to read parameter in mule esb -

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I am sending some parameters for the malfunction that I am sending in 8081 listening through inbound. 

  http: // localhost: 8081 / hey? Age = manoj

But I do not know how can I get it from the message ?? I know that I can access it by message and payload, but when I try to do this 

  # [message payload: ['age']]  < / Pre> 
 I error is that the payload is a string type and I am very confused in the mule. I want a universal value.

If you are using Khachia 3.6 version or above, the expression has been changed. . So now, you need the following expression to get the value: - 

  # [message.inboundProperties.'http.query.params'.age]

You can find the context for the query here: -


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