C# 基础 - 日志捕获一使用 StreamWriter
2024-09-05 00:23:17
public static class LogHelper
{
private static readonly string _baseDir = AppDomain.CurrentDomain.BaseDirectory + "VILog";
private static DateTime _currentDate;
private static StreamWriter _sw;
static LogHelper()
{
DirectoryInfo di = new DirectoryInfo(_baseDir);
if (!di.Exists)
di.Create();
}
private static void CheckLogFile()
{
if (_sw == null)
{
_currentDate = DateTime.Now.Date;
_sw = new StreamWriter(string.Format(_baseDir + "/{0}.{1}-{2}-{3}.log", Process.GetCurrentProcess().ProcessName, _currentDate.Year, _currentDate.Month, _currentDate.Day), true, Encoding.UTF8);
return;
}
DateTime dt = DateTime.Now.Date;
if (DateTime.Compare(dt, _currentDate) != 0)
{
_sw.Close();
_sw = null;
_currentDate = dt;
CheckLogFile();
}
}
public static void Log(string str, object sender = null, LogLevel level = LogLevel.Info, string detail = null)
{
if (IsStopLog) return;
CheckLogFile();
if (string.IsNullOrEmpty(str)) return;
_sw.WriteLine("[{0}.{1}]:[{2}]{3}", DateTime.Now.ToShortDateString(), DateTime.Now.ToLongTimeString(), level, str);
if (!string.IsNullOrEmpty(detail))
_sw.WriteLine("Detail:{0}", detail);
_sw.Flush();
}
public static void Info(string str, object sender = null, string detail = null)
{
Log(str, sender, LogLevel.Info, detail);
}
public static void Error(string str, object sender = null, string detail = null)
{
Log(str, sender, LogLevel.Error, detail);
}
public static void Error(string str, object sender = null, Exception ex = null)
{
string errmsg = ex.StackTrace?.ToString();
Log(str, sender, LogLevel.Error, Environment.NewLine + errmsg);
}
public static void Warning(string str, object sender = null, string detail = null)
{
Log(str, sender, LogLevel.Warning, detail);
}
public static bool IsStopLog { get; set; }
}
public enum LogLevel
{
Info,
Error,
Warning
}
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