欢迎回到“本周 Spring 动态”的又一期。本周有很多值得讨论的内容，还有一系列新版本，让我们直接开始吧！

1. Chris Beams 宣布了 Spring 3.1 的最新 RC2 版本。这是预期的最终版本，所以请尽快获取并进行试用。要了解 Spring 3.1 的全部内容，请查看发布说明和 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 撰写了一篇精彩的文章，介绍了

在运行 Apache Tomcat 时进行 JVM 性能调优。该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。好文章！

<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 撰写了一篇关于 Spring Batch 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 利用代理来实现其魔力。代理有三种类型，每种都有其优点和缺点。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。这是一篇非常好的文章！
4. Stacey Schneider 撰写了一篇关于 Apache Tomcat 7.0.23 新版本很棒的文章。在新版本中，你会发现能够并行启动和停止 Web 应用程序以提高启动时间、缓存配置文件以及改进对部署失败重启的处理等新功能。
5. Eclipse Virgo 3.0.2 已发布。新版本修复了几个错误。