There is no Action mapped for namespace /study and action name viewsubthemead?id=.怎么修理

There is no Action mapped for namespace /study and action name viewsubthemead?id=.怎么修理
There is no Action mapped for namespace /study and action name viewsubthemead?id=.
怎么修理

There is no Action mapped for namespace /study and action name viewsubthemead?id=.怎么修理
没找到/study这个url对应的action.查看你的struts配置文件是否有相应的配置.