log4j: layout demo : Log4j « Language Basics « Java

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Java » Language Basics » Log4j Screenshots  log4j: layout demo    /* Logging In Java with the JDK 1.4 Logging API and Apache log4j by Samudra Gupta     Apress Copyright 2003  ISBN:1590590996 */ import org.apache.log4j.Logger; import org.apache.log4j.ConsoleAppender; import org.apache.log4j.TTCCLayout; import org.apache.log4j.NDC; public class LayoutDemo {   private static Logger logger = Logger.getLogger("name");   private ConsoleAppender appender = null;   private TTCCLayout layout = null;   /** Creates a new instance of LayoutDemo */   public LayoutDemo() {     //set the parent additivity to false     logger.setAdditivity(false);     //initialize the layout     layout = new TTCCLayout("yyyy-MM-dd");     //initialize the console appender with the layout     appender = new ConsoleAppender(layout, "System.out");     //adding the console appender to the logger     logger.addAppender(appender);   }   public void computeSquareRoot(double number) {     NDC.push(new Double(number).toString());     double sqrt = Math.sqrt(number);     logger.info("The sqrt value: " + sqrt);     NDC.pop();   }   public static void main(String args[]) {     LayoutDemo demo = new LayoutDemo();     demo.computeSquareRoot(22);     demo.computeSquareRoot(44);   } }                               Related examples in the same category 1.  Example log4j Configuration File 2.  log4j: simple log 3.  log4j: log and servlet 4.  log4j: File Based Logg Demo 5.  log4j: asynchronous log 6.  log4j: A complete example 7.  log4j: advanced log 8.  set the level of the root logger to DEBUG and set its appender as an appender named testAppender 9.  define a named logger 10.  set the appender named testAppender to be a console appender 11.  set the layout for the appender testAppender 12.  define the root logger with two appenders writing to console and file 13.  define your own logger named com.foo 14.  and assign level and appender to your own logger 15.  define the appender named FILE 16.  define the appender named CONSOLE 17.  log4j Configuration File: #set the level of the root logger to DEBUG and set its appender as an appender named X 18.  log4j Configuration File: set the appender named X to be a console appender 19.  log4j Configuration File: set the layout for the appender X 20.  log4j Configuration File: define the root logger with two appenders writing to console and file 21.  log4j Configuration File: define your own logger named com.foo 22.  log4j Configuration File: assign appender to your own logger 23.  log4j Configuration File: define the appender named 24.  log4j Configuration File: define the appender named CONSOLE 25.  log4j.properties: set the level of the root logger to DEBUG (the lowest level) and set its appenders named DEBUG and CONSOLE 26.  log4j.properties: set your own logger 27.  log4j.properties: set the appender CONSOLE 28.  log4j.properties: set the appender FILE 29.  log4j.properties: set the appender ROLLING 30.  log4j.properties: set the appender DAILY 31.  log4j.properties: set the layout for the appenders 32.  log4j.properties: file layout 33.  log4j.properties: rolling layout 34.  log4j.properties: daily layout 35.  log4j config file: configuring the root logger 36.  log4j config file: configuring the named logger 37.  log4j config file: configuring the appender CONSOLE 38.  log4j config file: configuring the layout TTCCLayout 39.  html.properties: configuring the custom logger 40.  xml.properties: configuring the custom logger 41.  jdbc.properties configuration file for log4j 42.  jms.properties configuration file for JMS 43.  nt.properties for NT configuration 44.  smtp.properties for EMail based logging 45.  Pass the configuration file and configuration class 46.  Logging Servlet with log4j