struts2 -- Unable to load configuration - bean - jar:file: struts-default.xml:47:178(已解决)

今天第一次搭建struts2框架，遇到的第一个问题：

INFO - Parsing configuration file [struts-default.xml]
ERROR - Dispatcher initialization failed
Unable to load configuration. - bean - jar:file:/D:/Tomcat%206.0/webapps/demo/WEB-INF/lib/struts2-core-2.1.8.1.jar!/struts-default.xml:47:178
at com.opensymphony.xwork2.config.ConfigurationManager.getConfiguration(ConfigurationManager.java:58)
at org.apache.struts2.dispatcher.Dispatcher.init_PreloadConfiguration(Dispatcher.java:374)
at org.apache.struts2.dispatcher.Dispatcher.init(Dispatcher.java:418)
at org.apache.struts2.dispatcher.FilterDispatcher.init(FilterDispatcher.java:190)

web.xml

<!-- config struts2 -->
<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>
解决方法:

在网上查到,应该把commons-fileupload-1.2.1.jar也加进来,就对了