Spring Security began in late 2003 as "The Acegi Security System for Spring". A question was posed on the Spring Developers‘ mailing list asking whether there had been any consideration given to a Spring-based security implementation. At the time the Spring community was relatively small (especially compared with the size today!), and indeed Spring itself had only existed as a SourceForge project from early 2003. The response to the question was that it was a worthwhile area, although a lack of time currently prevented its exploration.
Spring Security于2003年底开始作为“Acegi安全系统的春天”。在Spring Developers的邮件列表中提出了一个问题，询问是否对基于Spring的安全实现给予了任何考虑。当时Spring社区相对较小（特别是与今天的大小相比！），而且Spring本身从2003年初开始只作为SourceForge项目存在。对这个问题的回答是，它是一个值得的区域，尽管缺乏时间目前阻止了它的探索。
With that in mind, a simple security implementation was built and not released. A few weeks later another member of the Spring community inquired about security, and at the time this code was offered to them. Several other requests followed, and by January 2004 around twenty people were using the code. These pioneering users were joined by others who suggested a SourceForge project was in order, which was duly established in March 2004.
Spring Security（二）：2.2 History
原文：https://www.cnblogs.com/shuaiandjun/p/10127825.html
