容易出问题的Struts2在web.xml路径拦截配置

错误的

<filter>
  <filter-name>struts2</filter-name>
  <filter-class>
   org.apache.struts2.dispatcher.FilterDispatcher
  </filter-class>
 </filter>
 <filter-mapping>
  <filter-name>struts2</filter-name>
  <url-pattern>/*.action</url-pattern>
 </filter-mapping>

正确的

<filter>
  <filter-name>struts2</filter-name>
  <filter-class>
   org.apache.struts2.dispatcher.FilterDispatcher
  </filter-class>
 </filter>
 <filter-mapping>
  <filter-name>struts2</filter-name>
  <url-pattern>*.action</url-pattern>
 </filter-mapping>

报错类型

 java.lang.IllegalArgumentException: Invalid <url-pattern> /*.action in filter mapping