通过CLI在Java中传递参数

本文介绍了通过CLI在Java中传递参数的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！ 问题描述

通过 CLI 在 Java 中传递参数时，我们通常像

While passing arguments in Java through CLI we generally pass like

java -cp jar classname "args[0]" "args[1]"

我想传递类似-host主机名--user用户名--password密码等.

请帮助我实现这一目标.

Please help me in achieving this.

预先感谢！

推荐答案

您可以按以下方式使用 commons-cli 库:

You can use commons-cli library as follows:

import org.apachemons.cli.*; public class Main { public static void main(String[] args) throws Exception { Options options = new Options(); Option host = new Option("h", "host", true, "host address"); host .setRequired(true); options.addOption(host); Option user = new Option("u", "user", true, "user login"); user.setRequired(true); options.addOption(user); Option password = new Option("p", "password", true, "user's password"); password.setRequired(true); options.addOption(password); CommandLineParser parser = new DefaultParser(); HelpFormatter formatter = new HelpFormatter(); CommandLine cmd; try { cmd = parser.parse(options, args); } catch (ParseException e) { System.out.println(e.getMessage()); formatter.printHelp("my-program", options); System.exit(1); return; } String inputHost = cmd.getOptionValue("host"); String inputUser = cmd.getOptionValue("user"); String inputPassword = cmd.getOptionValue("password"); } }