配置Struts2，启动tomcat8出错
Connected to server[2014-08-06 04:46:09,505] Artifact sshAndEasyUI:war exploded: Artifact is being deployed, please wait...
[org.springframework.web.context.ContextLoader]Root WebApplicationContext: initialization started
[org.springframework.web.context.support.XmlWebApplicationContext]Refreshing Root WebApplicationContext: startup date [Wed Aug 06 16:46:13 CST 2014]; root of context hierarchy
[org.springframework.beans.factory.xml.XmlBeanDefinitionReader]Loading XML bean definitions from class path resource [spring.xml]
[org.springframework.context.annotation.ClassPathBeanDefinitionScanner]JSR-250 'javax.annotation.ManagedBean' found and supported for component scanning
[org.springframework.beans.factory.config.PropertyPlaceholderConfigurer]Loading properties file from class path resource [config.properties]
[org.springframework.beans.factory.support.DefaultListableBeanFactory]Pre-instantiating singletons in org.springframework.beans.factory.support.DefaultListableBeanFactory@4bd354f7: defining beans [org.springframework.beans.factory.config.PropertyPlaceholderConfigurer#0,userService,org.springframework.context.annotation.internalConfigurationAnnotationProcessor,org.springframework.context.annotation.internalAutowiredAnnotationProcessor,org.springframework.context.annotation.internalRequiredAnnotationProcessor,org.springframework.context.annotation.internalCommonAnnotationProcessor,org.springframework.context.annotation.internalPersistenceAnnotationProcessor,org.springframework.context.annotation.ConfigurationClassPostProcessor$ImportAwareBeanPostProcessor#0]; root of factory hierarchy
[org.springframework.web.context.ContextLoader]Root WebApplicationContext: initialization completed in 680 ms
[com.opensymphony.xwork2.config.providers.XmlConfigurationProvider]Parsing configuration file [struts-default.xml]
[com.opensymphony.xwork2.config.providers.XmlConfigurationProvider]Parsing configuration file [struts-plugin.xml]
[com.opensymphony.xwork2.config.providers.XmlConfigurationProvider]Parsing configuration file [struts.xml]
[org.apache.struts2.config.AbstractBeanSelectionProvider]Choosing bean (spring) for (com.opensymphony.xwork2.ObjectFactory)
[org.apache.struts2.config.AbstractBeanSelectionProvider]Choosing bean (struts) for (com.opensymphony.xwork2.factory.ActionFactory)
[org.apache.struts2.config.AbstractBeanSelectionProvider]Choosing bean (struts) for (com.opensymphony.xwork2.factory.ResultFactory)
[org.apache.struts2.config.AbstractBeanSelectionProvider]Choosing bean (struts) for (com.opensymphony.xwork2.factory.ConverterFactory)
[org.apache.struts2.config.AbstractBeanSelectionProvider]Choosing bean (struts) for (com.opensymphony.xwork2.factory.InterceptorFactory)
[org.apache.struts2.config.AbstractBeanSelectionProvider]Choosing bean (struts) for (com.opensymphony.xwork2.factory.ValidatorFactory)
[org.apache.struts2.config.AbstractBeanSelectionProvider]Choosing bean (struts) for (com.opensymphony.xwork2.FileManagerFactory)
[org.apache.struts2.config.AbstractBeanSelectionProvider]Choosing bean (struts) for (com.opensymphony.xwork2.conversion.impl.XWorkConverter)
[org.apache.struts2.config.AbstractBeanSelectionProvider]Choosing bean (struts) for (com.opensymphony.xwork2.conversion.impl.CollectionConverter)
[org.apache.struts2.config.AbstractBeanSelectionProvider]Choosing bean (struts) for (com.opensymphony.xwork2.conversion.impl.ArrayConverter)
[org.apache.struts2.config.AbstractBeanSelectionProvider]Choosing bean (struts) for (com.opensymphony.xwork2.conversion.impl.DateConverter)
[org.apache.struts2.config.AbstractBeanSelectionProvider]Choosing bean (struts) for (com.opensymphony.xwork2.con