asp.net 오류 처리 클래스 + SESSION 클래스

aspx  

 *

 *     ：1.  Application_Start()      (        )：ErrorManager.Instance.Start()，

 *                12      ，  ErrorManager.Instance.SetTimerInterval()  。

 *           2.  Application_Error() ，      ，           error.aspx       

 *               string key = ErrorManager.Instance.AddError();

 *               Response.Redirect("error.aspx?key=" + key);

 *           3.  error.aspx   url   key，         ：

 *               string err = ErrorManager.Instance.GetError(key)

 *              err  19           ，       。

 *           4.     Session     ，     Session［key］ null     ，     GetSession()

 *               SetSession       Session，  aspx       Session，          。

 * 

 * 

 *     ：

 *

 *     ：

 *     ：

 *

 *     ：

 *     ：

 *----------------------------------------------------------------*/

using System;

using System.Data;

using System.Configuration;

using System.Web;

using System.Web.Security;

using System.Web.UI;

using System.Web.UI.WebControls;

using System.Web.UI.WebControls.WebParts;

using System.Web.UI.HtmlControls;

using System.Collections;



/**//// <summary>

/// Summary description for Error

/// </summary>

public class ErrorManager

{

    private System.Timers.Timer m_timer;

    private Hashtable m_htErr;



    /**//// <summary>

    ///        

    /// </summary>

    private ErrorManager()

    {

        this.m_timer = new System.Timers.Timer();

        this.m_timer.Enabled = false;

        this.m_timer.Interval = 12 * 60 * 60 * 1000;    //  12       

        this.m_timer.Elapsed += new System.Timers.ElapsedEventHandler(m_timer_Elapsed);

        this.m_htErr = new Hashtable();

    }



    /**//// <summary>

    ///        

    /// </summary>

    public static readonly ErrorManager Instance = new ErrorManager();



    /**//// <summary>

    ///         ，     

    /// </summary>

    /// <param name="Interval">  </param>

    public void SetTimerInterval(int Interval)

    {

        this.m_timer.Interval = Interval;

    }



    /**//// <summary>

    ///      

    /// </summary>

    public void TimerStart()

    {

        this.m_timer.Enabled = true;

    }



    /**//// <summary>

    ///      

    /// </summary>

    public void TimerStop()

    {

        this.m_timer.Enabled = false;

    }



    /**//// <summary>

    ///        ，         ，      id，       

    /// </summary>

    /// <returns>     id</returns>

    public string AddError()

    {

        string key = Guid.NewGuid().ToString();

        string msg = System.DateTime.Now.ToString("yyyy-MM-dd HH:mm:ss")

            + HttpContext.Current.Server.GetLastError().GetBaseException().Message;

        this.m_htErr.Add(key, msg);



        HttpContext.Current.Server.ClearError();



        return key;

    }



    /**//// <summary>

    ///     Key     ， 19           

    /// </summary>

    /// <param name="key">key，   guid</param>

    /// <returns>      </returns>

    public string GetError(string key)

    {

        return this.m_htErr[key].ToString();

    }



    /**//// <summary>

    ///    Hashtable       

    /// </summary>

    /// <param name="sender"></param>

    /// <param name="e"></param>

    private void m_timer_Elapsed(object sender, System.Timers.ElapsedEventArgs e)

    {

        ArrayList list = new ArrayList();

        lock (this.m_htErr)

        {

            DateTime now = DateTime.Now;

            TimeSpan ts;

            foreach (string key in this.m_htErr.Keys)

            {

                // 19           ，yyyy-MM-dd HH:mm:ss

                string time = this.m_htErr[key].ToString().Substring(0, 19);    

                ts = now - Convert.ToDateTime(time);

                if (ts.TotalMinutes > 20)   // 20         hashtable   

                    list.Add(key);

            }



            foreach (string key in list)

            {

                this.m_htErr.Remove(key);

            }

        }



    }





    Session     #region Session     

    /**//// <summary>

    ///        Session

    /// </summary>

    /// <param name="key">  </param>

    /// <returns>    </returns>

    public object GetSession(string key)

    {

        object val = HttpContext.Current.Session[key];

        if (val == null)

            throw new Exception("    ，     。");



        return val;

    }



    /**//// <summary>

    ///   Session

    /// </summary>

    /// <param name="key">  </param>

    /// <param name="val">   </param>

    public void SetSession(string key, object val)

    {

        HttpContext.Current.Session[key] = val;

    }

    #endregion

}