Hello Program with Apache Log4j 1.x
Q
How to write a simple Hello program with Apache Log4j 1.x? I need it to test out which JARs are needed to compile and run my Java applications using Log4j 1.x.
✍: FYIcenter.com
A
Below is a simple Hello program that calls the Apache Log4j 1.x API:
// Copyright (c) FYIcenter.com
import org.apache.log4j.*;
public class HelloLog4j {
private static final Logger logger = Logger.getLogger("fyiLogger");
public static void main(String[] args) {
System.out.println("Logger class: "+logger.getClass().getName());
BasicConfigurator.configure();
logger.fatal("Hello - fatal");
logger.error("Hello - error");
logger.warn("Hello - warn");
logger.info("Hello - info");
logger.debug("Hello - debug");
logger.trace("Hello - trace");
}
}
This sample program, HelloLog4j.java, does the following:
- It uses only the Log2j API only.
- It creates logger object named as "fyiLogger".
- It uses the default "Basic" configurator.
- It logs a simple message at each of 6 logging levels: fatal, error, warn, info, debug, and trace.
⇒ Compile and Run Program with Apache Log4j 1.x
⇐ Prerequisites for Apache Log4j 1.x
2015-12-11, ∼2573🔥, 0💬
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