A simple C# class useful to save a log file on the server

The method contained in this simple example class, allows you to write a text file "log" to a folder on the server.

Code:

using System;
using System.Globalization;
using System.IO;
using System.Linq;
using System.Text;
using System.Text.RegularExpressions;
using System.Web;

public class LogUtility
{

	/// <summary>
	/// Writes debug information to the log file
	/// </summary>
	/// <param name="log"></param>
	public static void WriteLog(string log)
	{
		string timestampLog = DateTime.Now.ToString();
		FileStream fstr = null;
		StreamWriter sw = null;
		try
		{
			// Important! 
			// The public folder must have write permissions
			string pathLogFile = HttpContext.Current.Server.MapPath("~/public/log.txt");
			fstr = File.Open(pathLogFile, FileMode.Append, FileAccess.Write);
			sw = new StreamWriter(fstr);
			sw.Write(timestampLog + Environment.NewLine + log + Environment.NewLine);
			sw.Close();
			fstr.Close();
		}
		catch (Exception excp)
		{
			sw.Close();
			fstr.Close();
		}
		finally
			{
				sw.Close();
				fstr.Close();
			}
	}
	
	/*
	Other methods of the class
	*/
}

Since the class is static, the method can be called in the following way:

string debugInformation ="Houston we have a problem!";
LogUtility.WriteLog(debugInformation);