How To Enable Logging Feature in Our Web Application?

One of the ways That we can Enable Logging Functionality in Our Web Applications is as Follows.....
                                                                             
Firstly

we need a file that has all properties related to Logging functionality
Ex:

# Root logger option  
      
   # log4j.rootLogger=INFO, file, stdout  
    log4j.rootLogger=ALL, file, stdout 
      
    # Direct log messages to a log file  
    log4j.appender.file=org.apache.log4j.RollingFileAppender  
    log4j.appender.file.File=/home/imadas/simplrdapilogs/logingFile.log

     #The Maximum size of a backup file.
    log4j.appender.file.MaxFileSize=1MB  

    #To maintain only one backup file.
    log4j.appender.file.MaxBackupIndex=1  

    log4j.appender.file.layout=org.apache.log4j.PatternLayout  
    log4j.appender.file.layout.ConversionPattern=%d{yyyy-MM-dd HH:mm:ss} %-5p %c{1}:%L - %m%n  
    
    #=======
    # Set the immediate flush to true (default)
    log4j.appender.FILE.ImmediateFlush=true

    # Set the threshold to debug mode
    log4j.appender.FILE.Threshold=debug
    #======
      
    # Direct log messages to stdout  
    log4j.appender.stdout=org.apache.log4j.ConsoleAppender  
    log4j.appender.stdout.Target=System.out  
    log4j.appender.stdout.layout=org.apache.log4j.PatternLayout  
    log4j.appender.stdout.layout.ConversionPattern=%d{yyyy-MM-dd HH:mm:ss} %-5p %c{1}:%L - %m%n  

Now Configure the above file in application "web.xml"  and Logger Listener  like:

<!-- Log4j Configuration -->
<context-param>
<param-name>log4jConfigLocation</param-name>
<param-value>/WEB-INF/log4j.properties</param-value>
</context-param>

<listener>
<listener-class>org.springframework.web.util.Log4jConfigListener</listener-class>
</listener>
<!-- End -->

Now we can use the Logging Feature in Our Application

Logger logger=new Logger.getLogger(The class); 

 Now we can use as we like

logger.info("...");
logger.debug,
logger.error.....etc.