欢迎回到新一期的 Spring 本周动态。本周有很多内容要讲，还有大量的新版本发布，让我们开始吧！

1. Chris Beams 宣布了 Spring 3.1 的最新也是最棒的版本，RC2。这是计划的最终版本，所以请尽快获取并尝试。要了解 Spring 3.1 中的内容，请查看 发行说明 和 Spring 3.1 博客系列

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	The steady march to Spring Integration 2.1 GA continues. This week, <A href= "http://www.springsource.org/node/3315">Spring Integration 2.1 RC1  was  released</a>.  
There are a lot of new features in  Spring Integration 2.1, including support for GemFire, RabbitMQ, MongoDB, and much, much, more.  For the full details, <a href="https://jira.springsource.org/secure/ReleaseNote.jspa?projectId=10121&version=12341">see the release notes</a>.  </LI>
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<A href ="http://www.springsource.com/developer/sts">SpringSource Tool Suite</A> lead Martin Lippert has announced the <a href="http://www.springsource.org/node/3316">latest release of SpringSource Tool Suite, version 2.8.1</a>, which provides a <EM>very</EM> compelling feature: compliance with both versions of the Maven plugins typically supported: M2E, the new, Eclipse-foundation supported integration, and M2Eclipse, the original integration furnished by Sonatype.  This makes it possible for  developers to upgrade and transition easily. All users are encouraged to upgrade immediately. 
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 <LI>  Spring Roo project lead Alan Stewart  has announced that <A href= "http://blog.springsource.org/2011/11/23/spring-roo-1-2-0-rc1-released">Spring Roo 1.2.0.RC1 has been released</a>. The new release  is packed with new features, including multi-module Maven projects, JSF 2.0 and RichFaces support, and much more.
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Daniel Mikusa 整理了一篇很棒的帖子，介绍了

在运行 Apache Tomcat 时进行 JVM 性能调优。这篇文章介绍了各种命令行选项，包括 -Xss、-XX:PermSize 和 -XX:MaxPermSize，以及关于 JVM 垃圾收集器选择的一些细节。不错的帖子！

<LI>   In this new video interview from <a href= "http://www.infoq.com">InfoQ</a>, Spring expert <a href="http://blog.springsource.org/author/costinl/">Costin Leau</a> talks about <a href="http://www.infoq.com/interviews/costin-leau-javaone-2011-interview/">Spring Data, caching, data grid architectures and work on a new Spring Hadoop project</a>. 
		
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2. BSB labs 整理了一篇 关于使用 Spring Batch 进行远程分区的精彩文章。

   	<a href= "http://www.springsource.org/spring-batch">Spring Batch</a>, as readers already know, is a powerful framework for building batch jobs. Spring Batch makes it dead simple to handle long running, multi-step batch processing jobs, and - with remote partitioning, it is even easier to partition those jobs across multiple nodes. This post introduces some of the cool features in the remote partitioning features available in Spring Batch. Check it out!
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    eWeek has an interesting post about a recent <a href = "http://www.eweek.com/c/a/Application-Development/Developers-Pick-VMware-Cloud-Foundry-as-Top-Cloud-Platform-Survey-251773/">Evans Data survey that found that developers prefer Cloud Foundry</A>. Not a lot of technical content, of course, but this provides a lot of good insight into why others are choosing Cloud Foundry and can be useful when you're trying to make the  case for <A HREF="http://www.cloudfoundry.org">Cloud Foundry</a> in your organization.
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    <LI>  ActiveState, creators of   the Stackato cloud, which is based on  <a href="http://www.cloudfoundry.org">Cloud Foundry</a> (the open source PaaS from VMware), has announced that <a href= "http://cloud.dzone.com/news/activestate-stackato-micro">their Micro Cloud will remain free</a> after the beta is finished. This ensures that developers can develop against the cloud in perpetuity.  </LI>
   

3. Spring 使用代理来实现其魔力。有三种类型的代理，每种都有其自身的优点和缺点。 Tomasz Nurkiewic 介绍了 Spring 如何使用动态代理、CGLIB 代理和 AspectJ 代理 以及一些潜在的陷阱。这是一篇非常不错的文章！
4. Stacey Schneider 整理了一篇关于 Apache Tomcat 的新 7.0.23 版本 的精彩文章。在新版本中，您会发现能够并行启动和停止 Web 应用程序以缩短启动时间、缓存配置文件以及改进失败的部署重启的处理能力。
5. Eclipse Virgo 3.0.2 已发布。 这个新版本 修复了几个错误。