1 回答配置文檔提示------Attribute "methond" must be declared for element type "action".

1 回答登陸界面提示There is no Action mapped for action name Users_login.

7 回答There is no Action mapped for namespace [/] and action name [] associated with context path [/ssh]. - [unknown location]

2 回答There is no Action mapped for namespace [/students] and action name [Students_queryAll] associated with context path [/xiaotao].

2 回答出現以下問題HTTP Status 404 - There is no Action mapped for namespace [/] and action name [] associated with context path [/StudentMessageControl].