tomcat 版本问题
对于tomcat5.0 配置数据源的时候要求在server.xml中进行修改加上例如：
???<DefaultContext reloadable="true" crossContext="true">
???????????????????url="jdbc:mysql://localhost:3306/juddi"/>
不然配置不对，可能会报tomcat版本错误，错误如下：
警告:???No rules found matching 'Server/Service/Engine/Host/Context/Logger'.
2009-7-12 13:28:49 org.apache.tomcat.util.digester.Digester endElement
警告:???No rules found matching 'Server/Service/Engine/Host/Context/ResourcePara
ms/parameter/name'.
2009-7-12 13:28:49 org.apache.tomcat.util.digester.Digester endElement
警告:???No rules found matching 'Server/Service/Engine/Host/Context/ResourcePara
ms/parameter/value'.
2009-7-12 13:28:49 org.apache.tomcat.util.digester.Digester endElement
警告:???No rules found matching 'Server/Service/Engine/Host/Context/ResourcePara
ms/parameter'.
2009-7-12 13:28:49 org.apache.tomcat.util.digester.Digester endElement
警告:???No rules found matching 'Server/Service/Engine/Host/Context/ResourcePara
ms/parameter/name'.
2009-7-12 13:28:49 org.apache.tomcat.util.digester.Digester endElement
警告:???No rules found matching 'Server/Service/Engine/Host/Context/ResourcePara
ms/parameter/value'.
2009-7-12 13:28:49 org.apache.tomcat.util.digester.Digester endElement
警告:???No rules found matching 'Server/Service/Engine/Host/Context/ResourcePara
ms/parameter'.
2009-7-12 13:28:49 org.apache.tomcat.util.digester.Digester endElement
警告:???No rules found matching 'Server/Service/Engine/Host/Context/ResourcePara
ms/parameter/name'.
2009-7-12 13:28:49 org.apache.tomcat.util.digester.Digester endElement
警告:???No rules found matching 'Server/Service/Engine/Host/Context/ResourcePara
ms/parameter/value'.
2009-7-12 13:28:49 org.apache.tomcat.util.digester.Digester endElement
警告:???No rules found matching 'Server/Service/Engine/Host/Context/ResourcePara
ms/parameter'.
2009-7-12 13:28:49 org.apache.tomcat.util.digester.Digester endElement
警告:???No rules found matching 'Server/Service/Engine/Host/Context/ResourcePara
ms/parameter/name'.
2009-7-12 13:28:49 org.apache.tomcat.util.digester.Digester endElement
警告:???No rules found matching 'Server/Service/Engine/Host/Context/ResourcePara
ms/parameter/value'.
2009-7-12 13:28:49 org.apache.tomcat.util.digester.Digester endElement
警告:???No rules found matching 'Server/Service/Engine/Host/Context/ResourcePara
ms/parameter'.
原文地址：http://blog.sina.com.cn/s/blog_62276c5a0100x334.html
