Sample code to configure Logger (Log4j)

Jar file needed:
log4j-1.2.17 or newer

Configuration of Logger (log4j.xml)

<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE log4j:configuration SYSTEM "log4j.dtd">
<log4j:configuration debug="true"
                     xmlns:log4j='http://jakarta.apache.org/log4j/'>

   <appender name="consoleAppender" class="org.apache.log4j.ConsoleAppender">
      <layout class="org.apache.log4j.PatternLayout">
         <param name="ConversionPattern" value="%d{dd MMM yyyy HH:mm:ss} %5p %c{1} - %m%n"/>
      </layout>
   </appender>

   <appender name="fileAppender" class="org.apache.log4j.RollingFileAppender">
      <param name="append" value="true"/>
      <param name="file" value="log/pushLog.log"/>
      <layout class="org.apache.log4j.PatternLayout">
         <param name="ConversionPattern" value="%d{dd MMM yyyy HH:mm:ss} %5p %c{1} - %m%n"/>
      </layout>
   </appender>

   <root>
      <level value="INFO"/>
      <appender-ref ref="consoleAppender"/>
      <appender-ref ref="fileAppender"/>
   </root>

</log4j:configuration>

Java class 


import org.apache.log4j.Logger;
public class SampleLogger {
private static final Logger m_log = Logger.getLogger(SampleLogger.class);
public static void main(String arg[])
{

m_log.info("Application start...");
try{
// your code
}catch(Exception e)
{
m_log.info("Exception occured...");
m_log.info(e.getMessage());
} 
m_log.info("Application End...");

}

}