Cakephp framework parameter passing problems

In the cakephp framework, the default URL-style route is: & nbsp; example. comcontrolleractionparam1param2. & Nbsp; of course, you can also set it as a named parameter: & nbsp; example. comcontrollera cakephp framework parameter passing problem
In the cakephp framework, the default URL-style routing is:
Http://example.com/controller/action/param1/param2
Parameters are transmitted sequentially.
Of course, you can also set it to a named parameter:
Http://example.com/controller/action/param1:value/param2:value
Now I want to implement the following URL:
Http://example.com/controller/action? Param1 = value & param2 = value
How should I set it?

------ Solution --------------------
Refer to the following content:
Http://book.cakephp.org/cn/view/46/Routes-Configuration