apache cli 例子

blueice

<dependency>
<groupId>commons-cli</groupId>
<artifactId>commons-cli</artifactId>
<version>1.2</version>
</dependency>

package cli;
import org.apache.commons.cli.BasicParser;
import org.apache.commons.cli.CommandLine;
import org.apache.commons.cli.HelpFormatter;
import org.apache.commons.cli.Option;
import org.apache.commons.cli.OptionBuilder;
import org.apache.commons.cli.Options;
import org.junit.Test;
public class ApacheCliTest {
@Test
public void testException2() {
parser("".split("\\s+"));
}
@Test
public void testException() {
parser("-a1 aa -a2".split("\\s+"));
}
@Test
public void testOption() {
parser("-a1 aa -a2 1 2 3".split("\\s+"));
}
@Test
public void testHelp() {
parser(new String[] { "-h" });
}
public static void parser(String[] args) {
Options opts = new Options();
opts.addOption("h", "help", false, "帮助信息");
opts.addOption("a1", "args1", true, "普通参数");
Option op2 = OptionBuilder.withArgName("args-list").withLongOpt("args2").hasArgs().withDescription("参数列表")
.create("a2");
opts.addOption(op2);
BasicParser parser = new BasicParser();
CommandLine cl;
try {
cl = parser.parse(opts, args);
if (cl.getOptions().length > 0) {
if (cl.hasOption('h')) {
HelpFormatter hf = new HelpFormatter();
hf.printHelp("Options", opts);
} else {
String a1 = cl.getOptionValue("a1");
System.out.println("a1:" + a1);
String[] a2 = cl.getOptionValues("a2");
for (String s : a2) {
System.out.println("a2:" + s);
}
}
} else {
System.err.println("没有参数");
}
} catch (Exception e) {
e.printStackTrace();
}
}
}