type Status reportmessage There is no Action mapped for namespace / and action name input.description The requested resource (There is no Action mapped for namespace / and action name input.) is n

HashMap map = new LinkedHashMap();  List list = new ArrayList();  map.put("id","1");      map.put("nw","管理员");      list.add(map);       map.put("id","2");      map.put("nw","教研室主任");

Exception reportmessagedescription The server encountered an internal error that prevented it from fulfilling this request.exceptionjava.lang.reflect.InvocationTargetException sun.reflect.Nat