说明：  Tomcat 的数据库连接池设置与应用 比较详细的介绍了Tomcat配置Struts数据源的过程，并有例子可以调试，非常适合新手！
(Tomcat Database Connection Pool settings and application of a more detailed introduction of the Tomcat data source Struts configuration process, and has examples of debugging, very suitable for novice!)