Log4j with multiple appenders using xml file.

Please follow the following program to understand log4j implementation for multiple appenders using xml file.

Java : MultipleAppenders

import org.apache.log4j.Logger;

import org.apache.log4j.xml.DOMConfigurator;

public class MultipleAppenders {

      private static final Logger logger = Logger.getLogger(MultipleAppenders.class);

      public static void main(String[] args) {

            DOMConfigurator.configure("log.xml");

            logger.debug("Debug Message.");// Method to Method.

            logger.info("Info Message.");// Information passing and recieving.

            logger.warn("Warning Message.");// Retrying again.

      }

}

XML: log.xml

<xml version="1.0" encoding="UTF-8" ?>

<!DOCTYPE log4j:configuration SYSTEM "log4j.dtd">

<log4j:configuration xmlns:log4j='http://jakarta.apache.org/log4j/'>

      <appender name="Console" class="org.apache.log4j.ConsoleAppender">

            <layout class="org.apache.log4j.PatternLayout">

                  <param name="ConversionPattern" value="%p %c - %m%n" />          

            </layout>        

      </appender>

      <appender name="Html" class="org.apache.log4j.FileAppender">

            <param name="File" value="sample.html"/>       

            <layout class="org.apache.log4j.HTMLLayout"/>                    

      </appender>
      <appender name="File" class="org.apache.log4j. FileAppender ">
            <param name="File" value="sample.log"/>

            <layout class="org.apache.log4j.PatternLayout">                   

                  <param name="ConversionPattern" value="%p %c - %m%n" />           

            </layout>        

      </appender>

      <root>

            <level value="trace" />

            <appender-ref ref="Console" />

            <appender-ref ref="File" />

            <appender-ref ref="Html" />

      </root>

</log4j:configuration>