Your goal is to build a simple controller that will know which model and function to run, and then return a JSON object as a response that is usable on the far end of the transaction.
It enforces an authorization process that may limit the end user on the amount of records it can view after the controller level transaction is called.
它实施一个授权过程。在调用控制器级事务之后，这可能限制终端用户可查看的记录数量。
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By putting this information on the FSB, the request agent lets other processors know how this transaction affects their caches, and how the memory controller (northbridge) should behave.