最近总结了下之前写的C#log库，源码如下：分为两个文件
class LogInfo
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//LogInfo.cs
public class LogInfo
{
/// 日志文件大小
private int fileSize;
/// 日志文件的路径
private string fileLogPath;
/// 日志文件的名称
private string logFileName;
/// 构造函数,初始化日志文件大小[2M]
/// 可以使用相关属性对其进行更改.
public LogInfo(string logName)
{
this.fileSize = 10 * 1024 * 1024;//2M
//默认路径
this.fileLogPath = Directory.GetCurrentDirectory();// + @"\log\";//路径，可以根据实际修改
string nameTime = DateTime.Now.ToString("yyyy-MM-dd");
this.logFileName = System.Environment.MachineName + nameTime + logName + ".txt";
}
/// 获取或设置定义日志文件大小
public int FileSize
{
set
{
fileSize = value;
}
get
{
return fileSize;
}
}
/// 获取或设置日志文件的路径
public string FileLogPath
{
set
{
this.fileLogPath = value;
}
get
{
return this.fileLogPath;
}
}
/// 获取或设置日志文件的名称
public string LogFileName
{
set
{
this.logFileName = value;
}
get
{
return this.logFileName;
}
}
/// <summary>
/// 向指定目录中的指定的文件中追加日志文件
/// <param name="Message">Message,要写入日志的内容</param>
/// </summary>
public void WriteLog(string Message)
{
this.m_WriteLog(this.logFileName, Message);
}
int cnt = 1;
/// <summary>
/// 向指定目录中的文件中追加日志文件,日志文件的名称将由传递的参数决定.
/// <param name="LogFileName">日志文件的名称,如:mylog.txt ,如果没有自动创建,如果存在将追加写入日志</param>
/// <param name="Message">Message,要写入日志的内容</param>
/// </summary>
private void m_WriteLog(string LogFileName, string Message)
{
//如果日志文件目录不存在,则创建
if (!Directory.Exists(this.fileLogPath))
{
Directory.CreateDirectory(this.fileLogPath);
}
//static int cnt = 1;
FileInfo finfo = new FileInfo(this.fileLogPath + LogFileName);
if (finfo.Exists && finfo.Length > fileSize)
{
finfo.MoveTo(this.fileLogPath + LogFileName + "_bk_" + cnt.ToString());
}
try
{
FileStream fs = new FileStream(this.fileLogPath + LogFileName, FileMode.Append);
StreamWriter strwriter = new StreamWriter(fs);
try
{
string tm = DateTime.Now.ToString("HH:mm:ss:fff");
strwriter.WriteLine("[" + tm + "]" + Message);
strwriter.Flush();
}
catch (Exception ee)
{
//Console.WriteLine("日志文件写入失败信息:" + ee.ToString());
using (FileStream efs = new FileStream("./error.txt", FileMode.Append))
{
byte[] data = System.Text.Encoding.Default.GetBytes(ee.Message);
efs.Write(data, 0, data.Length);
}
}
finally
{
strwriter.Close();
strwriter = null;
fs.Close();
fs = null;
}
}
catch (Exception ee)
{
//Console.WriteLine("日志文件没有打开,详细信息如下:" + ee.ToString());
using (FileStream efs = new FileStream("./error.txt", FileMode.Append))
{
byte[] data = System.Text.Encoding.Default.GetBytes("日志文件没有打开,详细信息如下:" + ee.Message);
efs.Write(data, 0, data.Length);
}
}
}
}
class LogMgr
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//LogMgr.cs
public class LogMgr
{
/// <summary>
/// 初始化log文件名
/// </summary>
/// <param name="name"></param>
public LogMgr(string name)
{
logInfo = new LogInfo(name);
Start();
}
~LogMgr()
{
Stop();
if (th != null) th.Abort();
}
private readonly object mutex = new object();
Queue<string> qlog = new Queue<string>();
AutoResetEvent evt_log = new AutoResetEvent(false);
LogInfo logInfo;// = new LogInfo("Info");
void log2file()
{
while (isllog)
{
evt_log.WaitOne();
while (qlog.Count > 0)
{
lock (mutex)
{
logInfo.WriteLog(qlog.Dequeue());
}
}
}
}
/// <summary>
/// Deprecated
/// </summary>
/// <param name="log"></param>
public void FastLog(List<string> log)
{
lock (mutex)
{
foreach (var item in log)
{
qlog.Enqueue(DateTime.Now.ToString("HH:mm:ss:fff") + " | " + "Info:" + item);
}
}
evt_log.Set();//通知打印线程
}
Thread th;
bool isllog = true;
/// <summary>
/// 停止log
/// </summary>
private void Stop()
{
isllog = false;
if (th.ThreadState == ThreadState.Running || th.ThreadState == ThreadState.WaitSleepJoin)
th.Abort();
}
/// <summary>
/// 启动log服务线程
/// </summary>
void Start()
{
isllog = true;
th = new Thread(new ThreadStart(log2file));
th.IsBackground = true;
th.Start();
}
//public interface
public void LogInfo(string str)
{
lock (mutex)
{
qlog.Enqueue(DateTime.Now.ToString("HH:mm:ss:fff") + " | " + "Info:" + str);
}
evt_log.Set();//通知打印线程
}
public void LogError(string str)
{
lock (mutex)
{
qlog.Enqueue(DateTime.Now.ToString("HH:mm:ss:fff") + " | " + "Error:" + str);
}
evt_log.Set();//通知打印线程
}
public void LogDebug(string str)
{
lock (mutex)
{
qlog.Enqueue(DateTime.Now.ToString("HH:mm:ss:fff") + " | " + "Debug:" + str);
}
evt_log.Set();//通知打印线程
}
}
使用
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LogMgr log = new LogMgr("info.txt");
log.LogInfo("this is info log");
