欢迎光临，这里是云中漫步的专栏

Since the first version of this article was published in October, 2003, the Spring Framework has steadily grown in popularity. It has progressed through version 1.0 final to the present 1.2, and has b

JDBC abstraction and data access exception hierarchy Data access is another area in which Spring shines. JDBC offers fairly good abstraction from the underlying database, but is a painful API to use.

AOP Since 2003 there has been much interest in applying AOP solutions to those enterprise concerns, such as transaction management, which have traditionally been addressed by EJB. The first goal of Sp