As with the previous article, you can follow along by adding code step-by-step to your sample project, or you can download the completed project from the download section.
同前一篇文章一样，您可以将代码逐步添加到样例项目中，也可以从下载部分中下载完整项目。
XP requires that you write code, let people use it, and let their feedback steer the project (we'll discuss this concept more in a future article).
XP要求您编写代码、让人们使用它，并让他们的反馈把握项目的方向(我们将在以后的文章中更详细地讨论这个概念)。
The code shown here is virtually identical to the sample REST resource shown in the Project Zero article referenced above.
此处所示的代码实际上与上面提到的Project Zero文章中所示的示例REST资源完全相同。
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