public class LogWrite
{
public LogWrite()
{
//
// TODO: 在此处添加构造函数逻辑
//
}
#region Constant
//单个日志文件大小
private const long FILESIZE = * * ;
//日志文件数
private const int LOGFILENUM = ;
//日志类型
private const short DEBUG = ;
private const short INFO = ;
private const short WARNING = ;
private const short ERROR = ;
//日志级别
private const short LOGLEVEL = DEBUG;
#endregion
#region Members
//日志文件路径
private string m_LogDir = System.Windows.Forms.Application.StartupPath + "\\module0\\Log";
private string m_filePath = System.Windows.Forms.Application.StartupPath + "\\module0\\Log\\Log.txt";//工作日志文件
private static LogWrite m_Log = null;
private Object objLock = new Object();
private string destClass = string.Empty;
#endregion
#region Properties
/// <summary>
/// 记录日志的类名
/// </summary>
public string DestClass
{
get { return destClass; }
set { destClass = value; }
}
#endregion
#region Ctor
#endregion
#region Public Methods
/// <summary>
/// 创建日志类实例
/// </summary>
/// <returns></returns>
public static LogWrite CreateInstance()
{
if (m_Log == null)
{
m_Log = new LogWrite();
}
return m_Log;
}
/// <summary>
/// 写信息日志
/// </summary>
/// <param name="content"></param>
public void Info(string content)
{
if (LOGLEVEL <= )
{
lock (objLock)
{
WriteLog(content, LogWrite.INFO);
}
}
}
/// <summary>
/// 写调试日志
/// </summary>
/// <param name="content"></param>
public void Debug(string content)
{
if (LOGLEVEL <= )
{
lock (objLock)
{
WriteLog(content, LogWrite.DEBUG);
}
}
}
/// <summary>
/// 写警告日志
/// </summary>
/// <param name="content"></param>
public void Warning(string content)
{
if (LOGLEVEL <= )
{
lock (objLock)
{
WriteLog(content, LogWrite.WARNING);
}
}
}
/// <summary>
/// 写错误日志
/// </summary>
/// <param name="content"></param>
public void Error(string content)
{
if (LOGLEVEL <= )
{
lock (objLock)
{
WriteLog(content, LogWrite.ERROR);
}
}
}
#endregion
#region Private Methods
/// <summary>
/// 写日志
/// </summary>
/// <param name="content"></param>
/// <param name="type"></param>
private void WriteLog(string content, short type)
{
if (content == null || content.Equals(string.Empty))
{
return;
}
try
{
if (!File.Exists(m_filePath))
{
CreateWorkLogFile();
}
if (LogFileIsTooLarge(m_filePath))
{
ProcessLogFile();
}
string strType = "";
switch (type)
{
case DEBUG:
strType = " [DEBUG] ";
break;
case INFO:
strType = " [INFO] ";
break;
case WARNING:
strType = " [WARNING] ";
break;
case ERROR:
strType = " [ERROR] ";
break;
default:
strType = " [INFO] ";
break;
}
string strContent = string.Format("{0}\t{1}\t[{2}]\t{3}", DateTime.Now.ToString("yyyy-MM-dd HH:mm:ss"), strType, DestClass, content);
StreamWriter sWriter = new StreamWriter(m_filePath, true, System.Text.Encoding.Default);
sWriter.WriteLine(strContent);
sWriter.Flush();
sWriter.Close();
sWriter = null;
}
catch (Exception ex)
{
System.Diagnostics.Debug.WriteLine(ex.Message);
}
}
/// <summary>
/// 创建工作日志文件
/// </summary>
private void CreateWorkLogFile()
{
if (!Directory.Exists(m_LogDir))
{
Directory.CreateDirectory(m_LogDir);
}
FileStream fStream = new FileStream(m_filePath, FileMode.CreateNew);
fStream.Flush();
fStream.Close();
fStream = null;
}
/// <summary>
/// 判断日志文件是否超过预定义最大值
/// </summary>
/// <param name="fileName"></param>
/// <returns></returns>
private bool LogFileIsTooLarge(string fileName)
{
FileInfo fi = new FileInfo(fileName);
if (fi.Length >= FILESIZE)
{
return true;
}
else
{
return false;
}
}
/// <summary>
/// 处理日志文件（工作日志文件超过最大值）
/// </summary>
private void ProcessLogFile()
{
try
{
DirectoryInfo dirInfo = new DirectoryInfo(m_LogDir);
FileInfo[] vFileInfo = dirInfo.GetFiles("*.txt");
if (vFileInfo != null && vFileInfo.Length > LOGFILENUM)
{
FileInfo oldFile = vFileInfo[];
foreach (FileInfo fi in vFileInfo)
{
if (DateTime.Compare(fi.LastWriteTime, oldFile.LastWriteTime) < )
{
oldFile = fi;
}
}
File.Delete(oldFile.FullName);
}
File.Copy(m_filePath, m_LogDir + "\\" + DateTime.Now.ToString("yyyyMMddHHmmss") + ".txt");
File.Delete(m_filePath);
CreateWorkLogFile();
}
catch
{
}
}
#endregion
}
类的路径需要修改下，就OK 了
private string m_LogDir = System.Windows.Forms.Application.StartupPath + "\\module0\\Log";
private string m_filePath = System.Windows.Forms.Application.StartupPath + "\\module0\\Log\\Log.txt";//工作日志文件
用的时候 只要实例就行了
private LogWrite m_Log = null; //构造函数里
m_Log = module0.WritLog.LogWrite.CreateInstance();
m_Log.set_DestClass
//输出日志在地方
m_Log.Info(System.DateTime.get_Now().ToString() + " ：... ");