Java :Logger

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In Progress

LOG4J

1.WHAT ARE THE MAIN COMPONENTS/COMPONENTS OF LOG4J

·      LOGGER: CAPTURES 1.    LEVELS [ALL|TRACE|INFO|WARN|DEBUG|ERROR|FATAL] ·      APPENDER: PUBLISHES INFORMATION ·      LAYOUT:DEFINES PATTERN           [DATE|XML|SIMPLE|PATTERN|HTML]

2.HIGH LEVEL OBJECT RELATIONSHIP

3.

Define rootlooger Assign file/rolling/jdbc appender to it Assign layout |pattern layout Assign conversion %m%n list of loggers AppenderSkeleton AsyncAppender ConsoleAppender DailyRollingFileAppender ExternallyRolledFileAppender FileAppender # Set the immediate flush to true (default) log4j.appender.FILE.ImmediateFlush=true # Set the threshold to debug mode log4j.appender.FILE.Threshold=debug  # Set the append to false, overwrite log4j.appender.FILE.Append=false # Define the layout for file appender log4j.appender.FILE.layout=org.apache.log4j.PatternLayout log4j.appender.FILE.layout.conversionPattern=%m%n # Set the maximum file size before rollover log4j.appender.FILE.MaxFileSize=5KB JDBCAppender JMSAppender LF5Appender NTEventLogAppender NullAppender RollingFileAppender SMTPAppender SocketAppender SocketHubAppender SyslogAppender TelnetAppender WriterAppender