Struts2 開發模式報錯如下：
ERROR ParametersInterceptor Developer Notification (set struts.devMode to false to disable this message):
Unexpected Exception caught setting 'limit' on 'class org.dcc.action.MtAction: Error setting expression 'limit' with value ['10', ]
ERROR ParametersInterceptor Developer Notification (set struts.devMode to false to disable this message):
Unexpected Exception caught setting 'offset' on 'class org.dcc.action.MtAction: Error setting expression 'offset' with value ['0', ]
ERROR ParametersInterceptor Developer Notification (set struts.devMode to false to disable this message):
Unexpected Exception caught setting 'order' on 'class org.dcc.action.MtAction: Error setting expression 'order' with value ['asc', ]解釋：
當struts.devMode設置爲true時，html表單數據中有和action屬性匹配不上的參數名時就會被這樣顯示出來，沒什麼大礙，就是爲了便於使用者調試。struts.devMode設置爲false就沒有了。
我也是找了半天原因，纔看到這句話，其實人家早就指出解決方法了，set struts.devMode to false to disable this message