Java 命令行参数

public class CmdLineArgsTest {
 
    private static void usage() {
        System.out.println("CmdLineArgsTest [-h <env directory>]");
        System.out.println("      [-i <inventory file>] [-v <vendors file>]");
        System.exit(-1);
    }
 

    /* 命令行参数解析 */
    private static void parseArgs(String args[]) {
        for (int i = 0; i < args.length; ++i) {
            if (args[i].startsWith("-")) {
                switch (args[i].charAt(1)) {
                case 'h':
                    System.out.println(args[++i]);
                    break;
                case 'i':
                    System.out.println(args[++i]);
                    break;
                case 'v':
                    System.out.println(args[++i]);
                    break;
                default:
                    usage();
                }
            }
        }
    }

 

    /**
     * @param args
     */
     public static void main(String[] args) {

         parseArgs(args);
     }

}

 

输出结果

Environment
Inventory
Vendor

解析：

args               String[6]

   [0]             "-h"

   [1]             "Environment"            

   [2]             "-i"

   [3]             "Inventory"

   [4]             "-v"

   [5]             "Vendor"