[Programmatically set log4J file output] Set in the program the file output of log4j logs #Java #Logs #Log4J

LogManager.java

/*
 * Set logger's appender. If the logger is local, the change will only be local.
 */ 
private void setAppender() {
    SimpleLayout layout = new SimpleLayout();
    FileAppender appender = null;
    try {
    	appender = new FileAppender(layout, "path/to/your/logs.log", true); //true = append; false = replace
    } catch (IOException e) {
        e.printStackTrace();
    }
    logger.addAppender(appender);
    logger.setLevel(Level.DEBUG); // Minimum Level to be logged
}