过滤器web.xml中的问题

Question

     
filter1过滤器，想只让这三个action走这个filter1的过滤器，下面写的方式不对，应该如何写这个配置
        <filter-mapping>
<filter-name>filter1</filter-name>
<url-pattern>/aaa1.action/</url-pattern>
<url-pattern>/aaa2.action/</url-pattern> 
                  <url-pattern>/aaa3.action/</url-pattern> 
</filter-mapping>自己试验过 <url-pattern>/aaa*.action/</url-pattern> 不成 <url-pattern>*.action</url-pattern> 不成怎样配置？

Answer 1

分开配，配三个
<filter-mapping>
   <filter-name>filter1</filter-name>
   <url-pattern>/aaa1.action</url-pattern>
</filter-mapping><filter-mapping>
   <filter-name>filter1</filter-name>
   <url-pattern>/aaa2.action</url-pattern>
</filter-mapping><filter-mapping>
   <filter-name>filter1</filter-name>
   <url-pattern>/aaa2.action</url-pattern>
</filter-mapping>
这样是可以的

Answer 2

<url-pattern>*.action</url-pattern>
就配一个
在filter里自己截取 URL,再使用startWith("/aaa")判断吧

Answer 3

应该可以用表达式啊，<filter-mapping>
   <filter-name>filter1</filter-name>
   <url-pattern>/aaa【1-3】.action</url-pattern>
</filter-mapping>
具体的我给忘了，你查查