系统日志

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Diagnostics;
using System.IO;

namespace BLL
{
   public class CreateLog
    {
       public static void WriteError(string strMessage)
        {
            WriteLog(TraceLevel.Error, strMessage);
            System.Web.HttpContext.Current.Response.Redirect("../index.aspx");
        }

        public static void WriteInfo(string strMessage)
        {
            WriteLog(TraceLevel.Info, strMessage);
        }

        public static void WriteVerbose(string strMessage)
        {
            WriteLog(TraceLevel.Verbose, strMessage);
        }

        public static void WriteWarning(string strMessage)
        {
            WriteLog(TraceLevel.Warning, strMessage);
        }

        private static void WriteLog(TraceLevel level, string strMessage)
        {
            EventLogEntryType logEntryType;
            switch (level)
            {
                case TraceLevel.Error:
                    {
                        logEntryType = EventLogEntryType.Error;
                        break;
                    }
                case TraceLevel.Info:
                    {
                        logEntryType = EventLogEntryType.Information;
                        break;
                    }
                case TraceLevel.Verbose:
                    {
                        logEntryType = EventLogEntryType.FailureAudit;
                        break;
                    }
                case TraceLevel.Warning:
                    {
                        logEntryType = EventLogEntryType.Warning;
                        break;
                    }
                default:
                    {
                        logEntryType = EventLogEntryType.SuccessAudit;
                        break;
                    }

            }

            string strLogPath = System.Web.HttpContext.Current.Server.MapPath(@"~/Tiring_room/Log/") + @"Log.txt";
            StreamWriter streamWriter = new StreamWriter(strLogPath, true);
            string LogInfor = @"【" + DateTime.Now.ToString() + "】-->[" + logEntryType.ToString() + "]：-------------------->" + strMessage;
            streamWriter.WriteLine(LogInfor);
            streamWriter.Flush();
            streamWriter.Close();
        }
        /// <summary>
        /// 功能：日志提示信息获取
        /// </summary>
        /// <param name="ex"></param>
        /// <param name="strMessage"></param>
        /// <returns></returns>
        public static string FormatException(Exception ex)
        {
            StringBuilder strBuilder = new StringBuilder();
            if (ex.Message != string.Empty)
            {
                strBuilder.Append(ex.Message).Append("/r/n");
            }
            return strBuilder.ToString();
        }

    }
}