非常好用的异步日志记录类

日常工作需要，结合前辈的经验，写了一个通用的日志记录类，感觉比较完善了，没有用到队列，只是简单的异步安全写入。

vs2010

using System;
using System.Text;
using System.IO;
using System.Configuration;
using System.Threading;
using System.Reflection;
using System.Diagnostics;
namespace Wyw.Utilities
{
    /// 

    /// LogHelper
    /// 异步日志类
    /// 
    /// 修改记录
    ///20120312 全部采用了静态，增加了取方法位置函数与每天新日志
    ///20120404 增加了消息体结构及方法
    /// 版本：1.0
    /// 
    ///		Wyw308
    ///		2012.03.11
    /// 
    /// 
    public class LogHelper
    {
        private static string filePath = "log\\";
        private static string fileName = DateTime.Now.ToString("yyyyMMdd") + ".log";
        /// 

        /// 文件路径
        /// 
        public static string FilePath
        {
            get { return filePath; }
            set { filePath = value; }
        }
        /// 

        /// 文件名
        /// 
        public static string FileName
        {
            get { return fileName; }
            set { fileName = value; }
        }

        static Mutex myMutex = new Mutex();
        private delegate void WriteStrToFileDelegate(Msg msg);
        #region 将消息体写入日志文件
        /// 

        /// 将消息体写入日志文件
        /// 
        /// 消息体
        private static void WriteMsgToFile(Msg msg)
        {
            if (!Directory.Exists(LogHelper.FilePath))
                Directory.CreateDirectory(LogHelper.FilePath);
            StreamWriter sw = null;
            myMutex.WaitOne(); //线程互斥
            FileInfo finfo = new FileInfo(filePath + "\\" + fileName);
            if (!finfo.Exists)
            {
                sw = File.CreateText(filePath + "\\" + fileName);
            }
            else
            {
                sw = new StreamWriter(finfo.OpenWrite());
            }
            sw.BaseStream.Seek(0, SeekOrigin.End);
            sw.WriteLine(string.Format("{0}", msg.Datetime) + "\t" + msg.Type + "\t" + msg.Location + "\t" + msg.Text);
            sw.Flush();
            sw.Close();
            myMutex.ReleaseMutex();
        }
        #endregion
        #region 外部调用
        /// 

        /// 获取方法类名等位置
        /// 
        /// 方法级别，默认1为调用它的方法名
        /// 返回这样形式：shenghua_riba.Form1.WriMsg()
        public static string GetMethodLocal(int frameIndex)
        {
            string str = string.Empty;
            StackTrace ss = new StackTrace(true);
            if (ss.FrameCount < frameIndex)
                frameIndex = ss.FrameCount;
            MethodBase mb = ss.GetFrame(frameIndex).GetMethod();
            取得方法命名空间
            //str += mb.DeclaringType.Namespace + "\n";
            取得方法类名
            //str += mb.DeclaringType.Name + "\n";
            //取得方法类全名
            str += mb.DeclaringType.FullName + ".";
            //取得法名
            str += mb.Name + "()";
            return str;
        }
        public static void Write(string msgText)
        {
            Write(DateTime.Now, MsgType.Information, "", msgText);
        }
        public static void Write(string msgLocation, string msgText)
        {
            Write(DateTime.Now, MsgType.Information, msgLocation, msgText);
        }
        public static void Write(MsgType msgType, string msgLocation, string msgText)
        {
            Write(DateTime.Now, msgType, msgLocation, msgText);
        }
        /// 

        /// 基础方法
        /// 
        /// 
        /// 
        /// 
        /// 
        public static void Write(DateTime msgDataTime, MsgType msgType, string msgLocation, string msgText)
        {
            new WriteStrToFileDelegate(WriteMsgToFile).BeginInvoke(new Msg(msgDataTime, msgType, msgLocation, msgText), null, null);
        }
        #endregion

        #region Msg
        /// 

        /// 表示一个日志记录的对象
        /// 
        private class Msg
        {
            //日志记录的时间
            private DateTime datetime;
            //日志记录的类型
            private MsgType type;
            // 日志位置
            private string location;
            //日志记录的内容
            private string text;

            /// 

            /// 创建新的日志记录实例;
            /// 
            /// 
            /// 
            /// 
            /// 
            public Msg(DateTime msgDataTime, MsgType msgType, string msgLocation, string msgText)
            {
                datetime = msgDataTime;
                type = msgType;
                location = msgLocation;
                text = msgText;
            }

            /// 

            /// 获取或设置日志记录的时间
            /// 
            public DateTime Datetime
            {
                get { return datetime; }
                set { datetime = value; }
            }
            public string Location
            {
                get { return location; }
                set { location = value; }
            }

            /// 

            /// 获取或设置日志记录的消息类型
            /// 
            public MsgType Type
            {
                get { return type; }
                set { type = value; }
            }
            /// 

            /// 获取或设置日志记录的文本内容
            /// 
            public string Text
            {
                get { return text; }
                set { text = value; }
            }

        }
        #endregion
        #region MsgType
        /// 

        /// 日志消息类型的枚举
        /// 
        public enum MsgType
        {
            /// 

            /// 普通信息
            /// 
            Information,
            /// 

            /// 指示警告信息类型的日志记录
            /// 
            Warning,
            /// 

            /// 指示错误信息类型的日志记录
            /// 
            Error,
            /// 

            /// 指示成功信息类型的日志记录
            /// 
            Success,
            /// 

            /// 指示致命类型的日志记录
            /// 
            Fatal
        }
        #endregion
    }
}