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用TextWriterTraceListener实现建议log文件记录

log4net之类3方组件确实很方便,但是想写个小小的demo之类的程序,有点用不起啊。

微软自带的TraceListener要实现一个简易的日志帮助类还是很简单的,直接上代码,自己备用,也希望对同样烦恼的哥们有用:

using System;using System.Collections.Generic;using System.IO;using System.Linq;using System.Text;using System.Threading.Tasks;using System.Diagnostics;namespace TestExpressionLambda{    public class Logger    {        /// <summary>        /// 默认路径        /// </summary>        public static readonly string RootPath = AppDomain.CurrentDomain.BaseDirectory + "log";        /// <summary>        /// 默认文件名格式        /// </summary>        public static readonly string FileFormat = DateTime.Now.ToString("yyyy-MM-dd") + ".log";        /// <summary>        /// 默认Trace监听        /// </summary>        public static TextWriterTraceListener traceListener;        /// <summary>        /// 静态实例        /// </summary>        private static readonly Logger instance = new Logger();        static Logger()        {            if (!Directory.Exists(RootPath))            {                Directory.CreateDirectory(RootPath);            }            string logFile = RootPath.TrimEnd(‘\\‘) + "\\" + FileFormat;            if (!File.Exists(logFile))            {                File.Create(logFile);            }            Trace.AutoFlush = true;            traceListener = new TextWriterTraceListener(logFile);            Trace.Listeners.Add(traceListener);        }        /// <summary>        /// log输出
     /// 当然这里可以自己随便扩充 /// </summary> /// <param name="msg"></param> public static void Log(string msg) { Trace.WriteLine(msg); } }}

 

用TextWriterTraceListener实现建议log文件记录