Spring

Spring Framework简介

Spring是一个解决了许多在J2EE开发中常见的问题的强大框架。 Spring提供了管理业务对象的一致方法并且鼓励了注入对接口编程而不是对类编程的良好习惯。Spring的架构基础是基于使用JavaBean属性的 Inversion of Control容器。然而，这仅仅是完整图景中的一部分：Spring在使用IoC容器作为构建完关注所有架构层的完整解决方案方面是独一无二的。 Spring提供了唯一的数据访问抽象，包括简单和有效率的JDBC框架，极大的改进了效率并且减少了可能的错误。Spring的数据访问架构还集成了 Hibernate和其他O/R mapping解决方案。Spring还提供了唯一的事务管理抽象，它能够在各种底层事务管理技术，例如JTA或者JDBC事务提供一个一致的编程模型。 Spring提供了一个用标准Java语言编写的AOP框架，它给POJOs提供了声明式的事务管理和其他企业事务--如果你需要--还能实现你自己的 aspects。这个框架足够强大，使得应用程序能够抛开EJB的复杂性，同时享受着和传统EJB相关的关键服务。Spring还提供了可以和IoC容器集成的强大而灵活的MVC Web框架。【SpringIDE：Eclipse平台下一个辅助开发插件】.

Spring 2.5

http://www.springframework.org/node/548

Features

full Java 6 and Java EE 5 support (JDBC 4.0, JTA 1.1, JavaMail 1.4, JAX-WS 2.0, etc)
full-featured annotation-driven dependency injection (including support for 'qualifiers')
support for component scanning in the classpath (autodetecting annotated classes)
bean name pointcut element in AspectJ pointcut expressions
built-in support for for AspectJ load-time weaving (based on the LoadTimeWeaver abstraction)
further XML configuration namespaces ("context", "jms") for maximum convenience
completely revised framework for integration tests (with support for JUnit 4 and TestNG)
new annotation-based controller style for Servlet MVC and Portlet MVC
extended SimpleJdbcTemplate functionality (support for named parameters etc)
officially certified WebSphere support (support for the WebSphere 6 UOWManager facility)
Spring framework jars are shipped as OSGi-compliant bundles out of the box
Spring ApplicationContext can be deployed as JCA RAR file (for headless application modules)
JCA 1.5 message endpoint management (for Spring-managed JMS and CCI message listeners)

Spring 2.1

Spring 2.1 M1 has been released. This is the first milestone release in the Spring 2.1 series, introducing major new features including annotation-based configuration, JCA-based message endpoint management, new "context" and "jms" XML configuration namespaces, and JDK 1.6 and Java EE 5 support.

http://www.springframework.org/node/460