The next installment will start by covering how to validate input.
接下来的一篇专栏文章将由讨论如何验证输入开始。
This component is used by the RESTActionController to identify the correct action to be called for a request as well as validate the input request.
此组件供restactioncontroller用于确定请求要调用的正确动作，并验证输入请求。
Your Atom feed is running at localhost, so click on Validate by Direct Input and paste in the output from your feed. The results are shown in Figure 4.
您的Atom feed是在localhost上运行的，所以单击Validate by Direct Input，并粘贴feed的输出。
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