I implemented log4net before but as usual, I could not remember all the steps to do it again in my UTS web application !! I also remember one of my team members (the same who deleted oracle directory under linux :P ) who had difficulties implementing for some weird reason which even i could not figure out. So, here i go documenting the simplest implementation of log4net in an ASP.NET Web application.
(1) First of all Download log4net extension
(2) Create a seperate log4net.config file and place all your configurations. Mine are as follows:
<?xml version="1.0" encoding="utf-8" ?>
<log4net>
<root>
<level value="DEBUG" />
<appender-ref ref="RollingLogFileAppender"/>
</root>
<appender name="RollingFileAppender" type="log4net.Appender.RollingFileAppender">
<file value="../logs/utslog.log" />
<appendToFile value="true" />
<rollingStyle value="Size" />
<maxSizeRollBackups value="10" />
<maximumFileSize value="100KB" />
<staticLogFileName value="true" />
<layout type="log4net.Layout.PatternLayout">
<conversionPattern value="%d [%t]%-5p %c [%x] - %m%n" />
</layout>
</appender>
<appender name="RollingLogFileAppender" type="log4net.Appender.RollingFileAppender">
<file value="../logs/utslog.log" />
<appendToFile value="false" />
<datePattern value="-dddd" />
<rollingStyle value="Date" />
<layout type="log4net.Layout.PatternLayout">
<conversionPattern value="%d [%t]%-5p %c [%x] - %m%n" />
</layout>
</appender>
</log4net>
(3) In your Global.asx, add the following method that will instantiate log4net configuration for your web app. Make a call to this method in Application_Start
protected void ConfigureLogging()
{
string logFile = HttpContext.Current.Request.PhysicalApplicationPath + "log4net.config";
if (System.IO.File.Exists(logFile))
{
log4net.Config.XmlConfigurator.ConfigureAndWatch(new System.IO.FileInfo(logFile));
}
}
(4) To use log4Net in your code behind simply initialize an instance of log4net
#region Logger Setup
protected static readonly log4net.ILog log = log4net.LogManager.GetLogger(System.Reflection.MethodBase.GetCurrentMethod().DeclaringType);
#endregion
(5) To eventually use logging in your code behind
protected void Page_Load(object sender, EventArgs e)
{
log.Debug("In Page Load Function");
}
