The Struts dispatcher cannot be found在struts2中出现的问题

最新推荐文章于 2020-10-09 13:07:52 发布

原创最新推荐文章于 2020-10-09 13:07:52 发布 · 108 阅读

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本文详细介绍了在使用Struts框架时遇到的'TheStrutsdispatchercannotbefound'错误，通常由未正确配置过滤器引起。文章提供了两种常见的解决办法：确保引入正确的taglib指令并修改web.xml文件中的拦截规则。

The Struts dispatcher cannot be found. This is usually caused by using Struts tags without the associated filter. Struts tags are only usable when the request has passed through its servlet filter, which initializes the Struts dispatcher needed for this tag. - [unknown location]
at org.apache.struts2.views.jsp.TagUtils.getStack(TagUtils.java:60)
at org.apache.struts2.views.jsp.StrutsBodyTagSupport.getStack(StrutsBodyTagSupport.java:44)
at org.apache.struts2.views.jsp.ComponentTagSupport.doStartTag(ComponentTagSupport.java:48)

解决办法：
1.引入
<%@ taglib prefix="s" uri="/struts-tags" %>

2.在web.xml中未将拦截的*.action改成/*

 <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>/*</url-pattern>
  </filter-mapping>

一般第二种情况比较多。是没有改WEB.XML中的拦截