C# 记录日志

/// <summary>
/// 日志部分
/// </summary>
/// <param name="fileName"></param>
/// <param name="type"></param>
/// <param name="content"></param>
public static void WriteLogs(string fileName, string type, string content)
{
string path = AppDomain.CurrentDomain.BaseDirectory;
if (!string.IsNullOrEmpty(path))
{
path = AppDomain.CurrentDomain.BaseDirectory + fileName;
if (!Directory.Exists(path))
{
Directory.CreateDirectory(path);
}
path = path + "\\" + DateTime.Now.ToString("yyyyMMdd");
if (!Directory.Exists(path))
{
Directory.CreateDirectory(path);
}
path = path + "\\" + DateTime.Now.ToString("yyyyMMdd") + ".txt";
if (!File.Exists(path))
{
FileStream fs = File.Create(path);
fs.Close();
}
if (File.Exists(path))
{
StreamWriter sw = new StreamWriter(path, true, System.Text.Encoding.Default);
sw.WriteLine(DateTime.Now.ToString("yyyy-MM-dd HH:mm:ss.fff") + type + "-->" + content);
//  sw.WriteLine("----------------------------------------");
sw.Close();
}
}
}

using System;
using System.Collections.Generic;
using System.Text;
using System.Diagnostics;

namespace Utils
{
/// <summary>
/// <para>　</para>
/// 　常用工具类——系统日志类
/// <para>　---------------------------------------------------</para>
/// <para>　WriteEventLog：写入系统日志(２个方法重载)</para>
/// <para>　DelEventName：删除日志事件源分类</para>
/// </summary>
public class EventLogHelper
{
#region 写入系统日志
/// <summary>
/// 写入系统日志
/// </summary>
/// <param name="EventName">事件源名称</param>
/// <param name="LogStr">日志内容</param>
public static void WriteEventLog(string EventName, string LogStr)
{
try
{
if (!EventLog.SourceExists(EventName))
{
EventLog.CreateEventSource(EventName, EventName);
}
EventLog.WriteEntry(EventName, LogStr);
}
catch (Exception)
{
}
}
/// <summary>
/// 写入系统日志
/// </summary>
/// <param name="EventName">事件源名称</param>
/// <param name="LogType">日志类型</param>
/// <param name="LogStr">日志内容</param>
public static void WriteEventLog(string EventName, string LogStr, EventLogEntryType LogType)
{
try
{
if (!EventLog.SourceExists(EventName))
{
EventLog.CreateEventSource(EventName, EventName);
}
EventLog.WriteEntry(EventName, LogStr, LogType);
}
catch (Exception)
{
}
}
#endregion

#region 删除日志事件源分类
/// <summary>
/// 删除日志事件源分类
/// </summary>
/// <param name="EventName">事件源名</param>
/// <returns></returns>
public static bool DelEventName(string EventName)
{
bool flag = false;
try
{
if (EventLog.SourceExists(EventName))
{
EventLog.DeleteEventSource(EventName,".");
flag = true;
}
}
catch (Exception)
{
}
return flag;
}
#endregion
}
}