使用struts标签报错有关问题

使用struts标签报错问题
如果url-pattern为*.do有后缀，则再加一个filter-mapping，url-pattern为*.jsp就可以解决

<filter-mapping>
        <filter-name>action2</filter-name>
        <url-pattern>*.do</url-pattern>
        <dispatcher>FORWARD</dispatcher>
	<dispatcher>REQUEST</dispatcher>
</filter-mapping>
<filter-mapping>
        <filter-name>action2</filter-name>
        <url-pattern>*.jsp</url-pattern>
        <dispatcher>FORWARD</dispatcher>
	<dispatcher>REQUEST</dispatcher>
</filter-mapping>

或者后缀改为/*,如

<filter-mapping>
        <filter-name>action2</filter-name>
        <url-pattern>/*</url-pattern>
        <dispatcher>FORWARD</dispatcher>
	<dispatcher>REQUEST</dispatcher>
</filter-mapping>