The Struts dispatcher cannot be found. This is usually caused by using Struts t

The Struts dispatcher cannot be found.  This is usually caused by using Struts tags without the associated filter。

 

问题原因来自 http://www.blogjava.net/freeman1984/archive/2010/06/01/322478.html

原因:如果想要在jsp文件中,采用 struts的tag,那么jsp必须是通过action跳转得到,也就是必须通过web.xml所配置的过滤器访问文件,否则会有异常。

我将filter的url-pattern由原来的/*改成了*.action.所以在jsp页面访问的时候就抛出以上异常。现在在下面加上*.jsp

<filter-mapping>
        <filter-name>struts2</filter-name>
        <url-pattern>*.action</url-pattern>
    </filter-mapping>
    <filter-mapping>
     <filter-name>struts2</filter-name>
        <url-pattern>*.jsp</url-pattern>
        </filter-mapping>

 

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