java 解析命令行参数


下载地址: https://jcenter.bintray.com/org/apache/commons/com.springsource.org.apache.commons.cli/1.2.0/

package com.test;
import org.apache.commons.cli.CommandLineParser;
import org.apache.commons.cli.Options;
import org.apache.commons.cli.BasicParser;
import org.apache.commons.cli.CommandLine;



public class Main {

public static void main(String[] args) throws Exception {
// Create a Parser
CommandLineParser parser = new BasicParser( );
Options options = new Options( );
options.addOption("h", "help", false, "Print this usage information");
options.addOption("v", "verbose", false, "Print out VERBOSE information" );
options.addOption("f", "file", true, "File to save program output to");
// Parse the program arguments
CommandLine commandLine = parser.parse( options, args );
// Set the appropriate variables based on supplied options
boolean verbose = false;
String file = "";

if( commandLine.hasOption('h') ) {
System.out.println( "Help Message");
System.exit(0);
}
if( commandLine.hasOption('v') ) {
verbose = true;
}
if( commandLine.hasOption('f') ) {
file = commandLine.getOptionValue('f');
}


}

}


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