defaultloghandler.cs

异常处理包,通用 异常处理包,通用 异常处理包,通用

using System;
using ExManagement.Interface;

namespace ExManagement.LogHandler
{
	/// <summary>
	/// 框架提供的默认日志记录器类, 范例
	/// </summary>
	public class DefaultLogHandler:IExLogHandler
	{
		/// <summary>
		/// 进行截取过滤以获取错误代码行
		/// </summary>
		/// <param name="e">系统异常</param>
		/// <returns>代码行位置信息</returns>
		private  string GetExceptionLocation(System.Exception e )
		{
			int  iLen , iReturnPos;
			string strErr , sLocateTemp , sLocate = "" ;

			//获取源异常信息
			strErr = e.StackTrace;
#if DEBUG
			if( strErr != string.Empty && strErr != null)
			{
				iLen = strErr.Length ;

				//查找第一行，其中行以回车结束
				iReturnPos = strErr.IndexOf( "\r\n" , 0 , iLen);
				while(iReturnPos > 0 && strErr.Length > 1)
				{
					//判断当前读取的行中有无 line 字样 ， 表示出错的具体代码行
					sLocateTemp = strErr.Substring(0,iReturnPos);
					if(sLocateTemp.IndexOf("line",0,sLocateTemp.Length ) > 0)
						sLocate += sLocateTemp + Environment.NewLine ;

					//将已判断的行删除，取下一行数据，加4表示/r/n四位
					strErr = strErr.Substring(iReturnPos + 4 , iLen - iReturnPos - 4);
					iLen = strErr.Length ;
					iReturnPos = strErr.IndexOf( "\r\n" , 0 , iLen);
				}

				if(strErr.IndexOf("line",0,strErr.Length ) > 0)
					sLocate += strErr + Environment.NewLine ;
			}
#else
			if( strErr != string.Empty && strErr != null)
			{
				if(strErr.IndexOf( "\r\n") == -1 )
				{
					sLocate = strErr;
				}
			    else
				{
					if(strErr.IndexOf( "\r\n") > 0)
					{
						sLocate = strErr.Substring(strErr.LastIndexOf("\r\n"));
					 }			        
				}
			}

#endif				
			return sLocate.Trim();
		}
		

		public int ExLog(Exception ex, string strErrorCode, string strLayerName, string strUserId, params string [] strExtention)
		{
			string ExcType = ex.GetType().FullName;
			string ExcMsg = ex.Message;
			string ExcLocation;
			try
			{
				ExcLocation = GetExceptionLocation(ex);
			}
			catch(Exception e)
			{
				throw e;
			}

			if(ExcLocation.Length > 3)
			{
				ExcLocation = ExcLocation.Substring(3);
			}
			string strLogID = "";

			strLogID = ExLogInfoFacade.GetLogInfoSequence();

			try
			{
				ExLogInfoFacade.InsertLogInfo(strLogID, strLayerName, ExcType, ExcMsg, ExcLocation, strUserId, strExtention);
			}
			catch(Exception e)
			{
				throw e;
			}

			return Convert.ToInt32(strLogID);
		}
	}
}