/**
     * 获取任意对象里面的returnMapObject的值.并且组成list
     * @param
     * @param list
     * @param fields
     * @return
     * @throws Exception
     */
    @SuppressWarnings("unchecked")
    public static List returnMapList(List list,String ...fields) throws Exception{
        List mapList = new ArrayList();
        if(list == null || list.isEmpty())return mapList;
        for(T t : list){
            Method m = t.getClass().getMethod("returnMapObject",fields.getClass());
            Object result = m.invoke(t,(Object)fields);
            mapList.add((Map) result);
        }
        return mapList;
    }