java - 多次使用的骡子对象

Question

我创建了一个骡流：

http --> 休息 --> Connector1 --> Connector2 --> ResponseBack

在 rest web 服务中，它接受多个参数，将其存储在对象中并将该对象返回给下一个组件。

Connector1 接收对象并将值（有效负载）返回给下一个组件（Connector2）。

现在Connector2接收到​​Connector1返回的对象，但是还不够，还需要从rest返回的对象中获取值。怎么做到呢。

Answer 1

Before calling the connector one or inside connector one, save the object returned by rest as a flow (invocation) variable.

This way when you reach connector two, you can have both response from connector one and the object returned by rest.

  <set-variable value="#[payload]" variableName="objFromRest"></set-variable>

or

  msg.setInvocationProperty(key, value);

and to retrieve them

  msg.getInvocationProperty(key);

or   #[flowVars['key']]

Refer to the following link for more information of using the Mule Expression Language and using Flow Variables.

Mule Expression Language