Java - How to use lo4j in wsad as a degugger? Can anyone can give me a simple example ?

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How to use lo4j in wsad as a degugger? Can anyone can give me a simple example ?

Total Answers and Comments: 2

Last Update: July 25, 2005

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July 25, 2005 05:32:05

Rit

RE: How to use lo4j in wsad as a degugger? Can anyone can give me a simple example ?

run this file i think result will itself explain you the use of LOG4J. otherwise mail me ritesh.patni@gmail.com :-
package com.banking.log4j;
import org.apache.log4j.*;

import com.lnt.banking.constant.ConstantIf;
public class TestLogging {
static Logger cat Logger.getLogger(ConstantIf.LOG4JKEY);
static Logger cat1 Logger.getLogger( com.foo );
//static Logger cat1 (Logger) Logger.getInstance(TestLogging.class.getName());
static
{
BasicConfigurator.configure();
try {
cat.setLevel(Level.ERROR);
cat1.setLevel(Level.DEBUG);
cat1.addAppender(new RollingFileAppender(new HTMLLayout() ConstantIf.dest1));
} catch (Exception e) {
cat.fatal( The Exception is : e);
}
finally
{
cat1.fatal( The Exception is : );
cat.fatal( The Exception is : );
}
}
public static void main(String[] args) {
System.out.println(args.length);
cat1.debug( Start of the MAIN()-- CAT1 );
cat1.info( This is Testing for the INFO method()-- CAT1 );
cat1.warn( This is Testing for the WARN method()-- CAT1 );
cat1.error( This is Testing for the ERROR method()-- CAT1 );
cat1.fatal( This is Testing for the fatal method()-- CAT1 );
cat.debug( Start of the MAIN() );
cat.info( This is Testing for the INFO method() );
cat.warn( This is Testing for the WARN method() );
cat.error( This is Testing for the ERROR method() );
cat.fatal( This is Testing for the fatal method() );
new TestLogging().init();
}
public void init(){
java.util.Properties prop System.getProperties();
java.util.Enumeration enum prop.propertyNames();

cat.info( *******System Enviroment As seen by Java **** );
cat.debug( ******Format : PROPERTY + VALUE ***** );
try
{
throw new Exception( exception );
}
catch(Exception e)
{
cat.error( This is new Error e);
}
finally
{
cat1.info( You Are at the end of the INIT() of the TestLogging class );
cat.info( You Are at the end of the INIT() of the TestLogging class );
}

}
}

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July 25, 2005 07:04:43

Muhammad Sajjad Awan

RE: How to use lo4j in wsad as a degugger? Can anyone can give me a simple example ?

there are few step to use Log4J in you java code.
1- creat a file name log.properties with following text
log4j.rootLogger debug stdout R

log4j.appender.stdout org.apache.log4j.ConsoleAppender
log4j.appender.stdout.layout org.apache.log4j.PatternLayout

# Pattern to output the caller's file name and line number.
log4j.appender.stdout.layout.ConversionPattern 5p d{dd MMM yyyy HH:mm:ss SSS} ( F: L) - m n

log4j.appender.R org.apache.log4j.RollingFileAppender
log4j.appender.R.File c:out.log

log4j.appender.R.MaxFileSize 1024KB
# Keep one backup file
log4j.appender.R.MaxBackupIndex 1

log4j.appender.R.layout org.apache.log4j.PatternLayout
log4j.appender.R.layout.ConversionPattern 5p d{dd MMM yyyy HH:mm:ss SSS} ( F: L) - m n

2- import package import org.apache.log4j.*;
3- PropertyConfigurator.configure(log.properties file path shuld be here);-
4- logger Logger.getLogger(ClassName.class);
5- logger.debug( any message you want to display );

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