将所有controller的公共属性和方法提取出来，放到一个controller基类里，共其它controller使用，这无疑不是一个好的选择，以下是我的项目中controller层的抽象，分享一下代码：

/// <summary>

    /// Controller基类

    /// </summary>

    public abstract class ControllerBase : Controller

    {

        #region Fields

        #endregion

        #region Constructor

        #endregion

        #region Properties

        /// <summary>

        /// 通用信息（一般由service层返回的）

        /// </summary>

        protected Entity.VMessage VMessage { get; set; }

        #endregion

        #region Protected Consts

        /// <summary>

        /// 每页显示的记录数

        /// </summary>

        protected const int PAGESIZE = 10;

        #endregion

        #region Protected virtual Properties

        /// <summary>

        /// 查询器属性

        /// </summary>

        protected virtual Entity.VPredication vp { get; set; }

        /// <summary>

        /// 分页结构属性

        /// </summary>

        protected virtual Entity.PagingParam pp { get; set; }

        #endregion

        #region Protected virtual Methods

        /// <summary>

        /// 操作后，显示的提示成功或失败的信息

        /// author:zzl

        /// </summary>

        /// <param name="msg">提示信息，操作成功或操作失败</param>

        /// <param name="url">点击返回列表后，所进入的地址</param>

        /// <returns></returns>

        protected virtual string DisplayMsg(string msg, string url)

        {

            string message = string.Format("<div style='color:red;font-size:14px;background:rgb(244,250,251);border:rgb(187,221,229) 1px solid;margin:3px;padding:3px'>{0},<a href='{1}'>返回列表</a></div>", msg, url);

            return message;

        }

        protected virtual string DisplayMsg(string msg)

        {

            string message = string.Format("<div style='color:red;font-size:14px;background:rgb(244,250,251);border:rgb(187,221,229) 1px solid;margin:3px;padding:3px'>{0}</div>", msg);

            return message;

        }

        #endregion

   #endregion

    }