JavaEE 7下的servlet 3.1？

Is servlet 3.1 under JavaEE 7?

引入Servlet 3.1与JavaEE 7。

Servlet 3.1 is introduced with JavaEE 7.

Servlet 3.1与Servlet 3.0的区别如何？

How Servlet 3.1 differs to Servlet 3.0?

关于Servlet 3.1中的新变化，请阅读Arun Gupta撰写的这篇博文： Servlet 3.1中的新功能？ - Java EE 7向前发展

Regarding the new changes in Servlet 3.1, read this blog post by Arun Gupta: What's new in Servlet 3.1 ? - Java EE 7 moving forward

我还想知道哪个版本的eclipse支持servlet 3.1开发。

And I also want to know which version of eclipse support servlet 3.1 development.

新版本的Eclipse 4.3（名为Kepler）支持Java EE 7技术。请参阅Arun Gupta的博客文章： Eclipse 4.3中的Java EE 7支持

The new version of Eclipse 4.3 (named Kepler) supports Java EE 7 technologies. See Arun Gupta's blog post: Java EE 7 support in Eclipse 4.3