Servlet 3.1与Servlet 3.0有何不同

Question

servlet 3.1是在JavaEE 7下吗？

哪个版本的eclipse支持servlet 3.1开发？

Answer 1

是JavaEE 7下的servlet 3.1吗？

Servlet 3.1是在JavaEE 7中引入的。

Servlet 3.1与Servlet 3.0有什么不同？

关于Servlet3.1中的新变化，请阅读Arun Gupta撰写的这篇博客文章：What's new in Servlet 3.1 ? - Java EE 7 moving forward

和我还想知道哪个版本的eclipse支持Servlet3.1开发。

新版本的Eclipse4.3(名为Kepler)支持JavaEE7技术。请参阅Arun Gupta的博客文章：Java EE 7 support in Eclipse 4.3

Answer 2

Servlet 3.1与Servlet 3.0以及其他

+=============+================+====================+=============================================================================+
|   VERSION   |      DATE      |   JAVA EE / JDK    |                             FEATURES / CHANGES                              |
+=============+================+====================+=============================================================================+
| Servlet 3.1 | May 2013       | JavaEE 7           | Non-blocking I/O, HTTP protocol upgrade mechanism                           |
+-------------+----------------+--------------------+-----------------------------------------------------------------------------+
| Servlet 3.0 | December 2009  | JavaEE 6, JavaSE 6 | Pluggability, Ease of development, Async Servlet, Security, File Uploading  |
+-------------+----------------+--------------------+-----------------------------------------------------------------------------+
| Servlet 2.5 | September 2005 | JavaEE 5, JavaSE 5 | Requires JavaSE 5, supports annotation                                      |
+-------------+----------------+--------------------+-----------------------------------------------------------------------------+
| Servlet 2.4 | November 2003  | J2EE 1.4, J2SE 1.3 | web.xml uses XML Schema                                                     |
+-------------+----------------+--------------------+-----------------------------------------------------------------------------+
| Servlet 2.3 | August 2001    | J2EE 1.3, J2SE 1.2 | Addition of Filter                                                          |
+-------------+----------------+--------------------+-----------------------------------------------------------------------------+
| Servlet 2.2 | August 1999    | J2EE 1.2, J2SE 1.2 | Becomes part of J2EE, introduced independent web applications in .war files |
+-------------+----------------+--------------------+-----------------------------------------------------------------------------+
| Servlet 2.1 | November 1998  | Unspecified        | First official specification, added RequestDispatcher, ServletContext       |
+-------------+----------------+--------------------+-----------------------------------------------------------------------------+
| Servlet 2.0 |                | JDK 1.1            | Part of Java Servlet Development Kit 2.0                                    |
+-------------+----------------+--------------------+-----------------------------------------------------------------------------+
| Servlet 1.0 | June 1997      |                    |                                                                             |
+-------------+----------------+--------------------+-----------------------------------------------------------------------------+

Source

Answer 3

除了Eng.Fouad给出的答案:Servlet3.1确实是在JavaEE7中引入的，但它也是由各种服务器独立实现的，这些服务器本身不是Java产品，例如Tomcat 8或Jetty 9.1。

至于这些变化，我收集了一些专门针对Servlet3.1中的新特性的a number or articles on my ZEEF page。

简而言之，非阻塞IO和一些安全特性(如'*‘角色)和拒绝未明确包含在安全约束中的HTTP方法的可能性是一些主要变化。