c# 简单日志记录类 log

共享一下很久写的一个日志记录类

网上的日志记录DLL，复杂繁多，最典型的就是log4net

但是往往你又不需要这么高级的东东(唉！配置麻烦)，干脆自己弄一个简单的日志记录工具类，还算凑合着用(主要是并发记录日志和多线程的问题). 

喜欢的就拿去用吧！ 以后有时间把它改成多线程的就完美了。

上代码:

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using System;   namespace NatureSex.CommonTool.Log {     /// <summary>     /// 日志等级     /// </summary>     public enum LoggerWarnLevel     {         /// <summary>         /// 日常等级         /// </summary>         Info = 1,         /// <summary>         /// 错误等级         /// </summary>         Error = 2     } }

 

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using System; using System.Text; using System.IO;   namespace NatureSex.CommonTool.Log {       /// <summary>     /// 作者:NatureSex 创建时间:2011-03-25 17:09:07     /// 名称:简单日志记录类     /// 默认使用配置文件APPSetting名称为FilePath节点值     /// 一个范围内写文件不会马上关闭流,需要手动调用Dispose方法释放,或者使用using实例化该类     /// </summary>     public class SimpleLogger : IDisposable     {         private static string appSettingPath = System.Configuration.ConfigurationManager.AppSettings["FilePath"];           private static string logPath = null;           /// <summary>         /// 存放路径         /// </summary>         public string LogPath         {             get { return logPath; }             set { logPath = value; }         }           private static int logSize = 2048;         /// <summary>         /// 每个日志文件大小(kb)         /// </summary>         public static int LogSize         {             get { return logSize; }             set { logSize = value; }         }           private static int maxCount = 5;           /// <summary>         /// 每天日志文件最大记录数量         /// </summary>         public static int MaxCount         {             get { return maxCount; }             set { maxCount = value; }         }           private static string logSuffix = "log";           /// <summary>         /// 日志文件后缀名         /// </summary>         public static string LogSuffix         {             get { return logSuffix; }             set { logSuffix = value; }         }           private static int lineCharCount = 60;         /// <summary>         /// 行字数,默认60         /// </summary>         public static int LineCharCount         {             get { return lineCharCount; }             set { lineCharCount = value; }         }           FileStream newfs = null;         FileInfo openfile = null;         StreamWriter sw = null;           static SimpleLogger()         {           }           /// <summary>         /// 使用配置文件AppSetting节点name为FilePath中value路径实例化         /// </summary>         public SimpleLogger()         {               if (string.IsNullOrEmpty(logPath) && appSettingPath != "")             {                 if (logPath == null)                 {                     logPath = appSettingPath + "/Log";                     CreateMatchFolder(logPath);                 }             }         }           /// <summary>         /// 使用自定义的路径实例化         /// </summary>         /// <param name="logPathPrams"></param>         public SimpleLogger(string logPathPrams)         {             if (!Path.HasExtension(logPathPrams))             {                 if (logPath == null)                 {                     logPath = logPathPrams + "/Log";                     CreateMatchFolder(logPath);                 }             }             else             {                 throw new Exception("路径不能包含文件名称!");             }         }           private static void CreateMatchFolder(string path)         {             if (!Directory.Exists(logPath))             {                 Directory.CreateDirectory(path);             }         }           /// <summary>         /// 写入日常日志信息         /// </summary>         /// <param name="title">标题</param>         /// <param name="info">内容</param>         public bool WriteInfoLog(string title, string info)         {             return WriteFile(logPath, title, LoggerWarnLevel.Info, info);         }           /// <summary>         ///  写入日常日志信息         /// </summary>         /// <param name="title">标题</param>         /// <param name="info">内容</param>         /// <param name="autoNewLine">是否自动换行</param>         /// <returns></returns>         public bool WriteInfoLog(string title, string info, bool autoNewLine)         {             string[] newinfo = SplitString(info);             return WriteFile(logPath, title, LoggerWarnLevel.Info, newinfo);         }           /// <summary>         /// 写入错误日志信息         /// </summary>         /// <param name="title">标题</param>         /// <param name="info">内容</param>         public bool WriteErrorLog(string title, Exception ex)         {             return WriteFile(logPath, title, LoggerWarnLevel.Error, ex.Message);         }           /// <summary>         /// 写入错误日志信息         /// </summary>         /// <param name="title">标题</param>         /// <param name="info">内容</param>         /// <param name="autoNewLine">是否自动换行</param>         /// <returns></returns>         public bool WriteErrorLog(string title, Exception ex, bool autoNewLine)         {             string[] newinfo = SplitString(ex.Message);             return WriteFile(logPath, title, LoggerWarnLevel.Error, newinfo);         }           //lineCharCount个字换一行         private string[] SplitString(string info)         {             int charLen = info.Length;             int line = (int)Math.Ceiling((charLen / (double)lineCharCount));             string[] splitArray = new string[line];//行数             for (int i = 0; i < line; i++)             {                 if (charLen < lineCharCount)                 {                     splitArray[i] = info;                 }                 else if ((charLen - (i * lineCharCount)) < lineCharCount)                 {                     splitArray[i] = info.Substring(i * lineCharCount, charLen - (i * lineCharCount));                 }                 else                 {                     splitArray[i] = info.Substring(i * lineCharCount, lineCharCount);                 }             }             return splitArray;         }           /// <summary>         /// 写入日志         /// </summary>         /// <param name="path"></param>         /// <param name="title"></param>         /// <param name="level"></param>         /// <param name="info"></param>         /// <returns></returns>         private bool WriteFile(string path, string title, LoggerWarnLevel level, params string[] info)         {             string fileName = string.Format("{0}.{1}", DateTime.Now.ToString("yyyy-MM-dd"), logSuffix);             string logFile = string.Format("{0}/{1}", path, fileName);             if (!File.Exists(logFile))             {                 CreateNewLog(logFile);             }               if (openfile == null || sw == null)             {                 openfile = new FileInfo(logFile);                 long sizeKB = (openfile.Length / 1024);                 if (sizeKB > logSize)                 {                     logFile = FindCanWriteFileName(path, fileName);                     CreateNewLog(logFile);                     openfile = new FileInfo(logFile);                 }                 newfs = openfile.Open(FileMode.Append, FileAccess.Write, FileShare.ReadWrite);                 sw = new StreamWriter(newfs);             }               if (sw == null) return false;             sw.WriteLine("================{0}=================", title);             sw.WriteLine("记录时间:{0}   等级:{1}", DateTime.Now.ToString(), level == LoggerWarnLevel.Info ? "info" : "error");             sw.WriteLine();             if (info != null)             {                 foreach (string str in info)                 {                     sw.WriteLine(str);                 }             }             sw.WriteLine();             sw.Flush();             return true;           }         /// <summary>         /// 建立一个新日志文件         /// </summary>         /// <param name="logFile"></param>         private void CreateNewLog(string logFile)         {             if (!File.Exists(logFile))             {                 using (newfs = new FileStream(logFile, FileMode.CreateNew, FileAccess.ReadWrite, FileShare.ReadWrite))                 {                     sw = new StreamWriter(newfs, Encoding.UTF8);                     sw.WriteLine("文件创建时间:{0}", DateTime.Now.ToString());                     sw.WriteLine("文件最大记录大小:{0}KB(与实际可能会有出入)", logSize);                     sw.WriteLine(sw.NewLine);                     newfs.Flush();                     sw.Dispose();                     sw = null;                 }             }         }           /// <summary>         /// 寻找一个当天可写的文件,并且不大于设置的文件大小         /// </summary>         /// <param name="path"></param>         /// <param name="name"></param>         /// <returns></returns>         private string FindCanWriteFileName(string path, string name)         {             string newName = string.Empty;             long sizeKB = 0;             FileInfo tempFi = null;             for (int i = 1; i <= MaxCount; i++)             {                 newName = string.Format("{0}/{2}-{1}", path, name, i);                 if (!File.Exists(newName))                 {                     break;                 }                 else                 {                     tempFi = new FileInfo(newName);                     sizeKB = (tempFi.Length / 1024);                     if (sizeKB < logSize)                     {                         break;                     }                 }             }             tempFi = null;             return newName;         }           #region Dispose           private bool disposed = false;           /// <summary>         /// 垃圾回收器执行函数         /// </summary>         ~SimpleLogger()         {             //如果有就释放非托管             Dispose(false);         }           /// <summary>         /// 关闭并是否资源         /// </summary>         public void Dispose()         {             //全部释放             Dispose(true);             GC.SuppressFinalize(this);         }         /// <summary>         /// 关闭并是否资源         /// </summary>         public void Close()         {             Dispose();         }           /// <summary>         /// 关闭并是否资源         /// </summary>         protected virtual void Dispose(bool disposing)         {             if (disposed)             {                 return;             }             // 清理托管资源             if (disposing)             {                                   if (sw != null)                 {                     sw.Close();                     sw.Dispose();                     sw = null;                 }                 if (newfs != null)                 {                     newfs.Close();                     newfs.Dispose();                     newfs = null;                 }                   if (openfile != null)                 {                     openfile = null;                 }             }             //非托管             disposed = true;         }           #endregion       }     }