<dependency>
<groupId>net.sf.jopt-simple</groupId>
<artifactId>jopt-simple</artifactId>
<version>4.9</version>
</dependency>
<dependency>
<groupId>log4j</groupId>
<artifactId>log4j</artifactId>
<version>1.2.17</version>
</dependency>
import org.apache.log4j.Logger;
import joptsimple.OptionParser;
import joptsimple.OptionSet;
public class MainApplication {
private static final Logger logger = Logger.getLogger(MainApplication.class);
public static void main(String[] args) {
OptionParser parser = new OptionParser();
parser.accepts("verbose").withOptionalArg();
parser.accepts("input").withRequiredArg();
parser.accepts("output").withRequiredArg();
OptionSet options = parser.parse(args);
boolean verbose = options.has("verbose");
String input = (String) options.valueOf("input");
String output = (String) options.valueOf("output");
if (verbose) {
logger.info("Verbose mode is enabled");
}
logger.info("Input file: " + input);
logger.info("Output file: " + output);
}
}
properties
log4j.rootLogger=INFO, stdout
log4j.appender.stdout=org.apache.log4j.ConsoleAppender
log4j.appender.stdout.layout=org.apache.log4j.PatternLayout
log4j.appender.stdout.layout.ConversionPattern=%d{yyyy-MM-dd HH:mm:ss} %-5p %c{1}:%L - %m%n
