Struts2所需的jar包导入不全，导致该错误。
主要需要以下几个jar包：
struts2-core-2.1.6.jar
xwork-2.1.2.jar
ognl-2.6.11.jar
freemarker-2.3.13.jar
commons-logging.jar
commons-fileupload.jar
commons-io.jar
相关文章
- Unable to load configuration. - bean - jar:file:/E:/tomcat-7.0.11/webapps/struts/WEB-INF/lib/struts
- 问题解决：Unable to load configuration. - bean - jar:file:/D:/Tomcat-6.0.13/webapps/teabank/WEB-INF/lib/struts2-core-2.1.8.1.jar!/str
- Unable to load configuration. - bean - jar:file:/d:/Tomcat/webapps/ssh007/WEB-INF/lib/struts2-spring-plugin-2.1.8.1.jar!/struts-