ConsoleAppender appender = new ConsoleAppender(new PatternLayout("%r [%t] %p %c %x - %m%n"));
appender.setTarget("System.err");
LevelRangeFilter filter = new LevelRangeFilter();
filter.setLevelMin(Level.DEBUG);
filter.setLevelMax(Level.DEBUG);
appender.addFilter(filter);
appender.activateOptions();
root.addAppender(appender);
appender = new ConsoleAppender(new PatternLayout());
appender.setTarget("System.out");