我使用过JOpt，发现它非常方便:http://jopt-simple.sourceforge.net/

首页还提供了一个大约8个备选库的列表，检查它们并选择最适合您的需求。

看看Commons CLI项目，里面有很多好东西。

看看Spring Shell

Spring Shell’s features include A simple, annotation driven, programming model to contribute custom commands Use of Spring Boot auto-configuration functionality as the basis for a command plugin strategy Tab completion, colorization, and script execution Customization of command prompt, shell history file name, handling of results and errors Dynamic enablement of commands based on domain specific criteria Integration with the bean validation API Already built-in commands, such as clear screen, gorgeous help, exit ASCII art Tables, with formatting, alignment, fancy borders, etc.

正如前面提到的一个评论(https://github.com/pcj/google-options)是一个很好的开始。

我想补充的一点是:

1)如果您遇到一些解析器反射错误，请尝试使用更新版本的guava。在我的例子中:

maven_jar(
    name = "com_google_guava_guava",
    artifact = "com.google.guava:guava:19.0",
    server = "maven2_server",
)

maven_jar(
    name = "com_github_pcj_google_options",
    artifact = "com.github.pcj:google-options:jar:1.0.0",
    server = "maven2_server",
)

maven_server(
    name = "maven2_server",
    url = "http://central.maven.org/maven2/",
)

2)当运行命令行时:

bazel run path/to/your:project -- --var1 something --var2 something -v something

3)当你需要使用帮助时，只需输入:

bazel run path/to/your:project -- --help

我使用过JOpt，发现它非常方便:http://jopt-simple.sourceforge.net/

首页还提供了一个大约8个备选库的列表，检查它们并选择最适合您的需求。

看看这些:

http://commons.apache.org/cli/ http://www.martiansoftware.com/jsap/

或者自己卷:

http://docs.oracle.com/javase/7/docs/api/java/util/Scanner.html

例如，这是你如何使用common -cli来解析2个字符串参数:

import org.apache.commons.cli.*;

public class Main {


    public static void main(String[] args) throws Exception {

        Options options = new Options();

        Option input = new Option("i", "input", true, "input file path");
        input.setRequired(true);
        options.addOption(input);

        Option output = new Option("o", "output", true, "output file");
        output.setRequired(true);
        options.addOption(output);

        CommandLineParser parser = new DefaultParser();
        HelpFormatter formatter = new HelpFormatter();
        CommandLine cmd = null;//not a good practice, it serves it purpose 

        try {
            cmd = parser.parse(options, args);
        } catch (ParseException e) {
            System.out.println(e.getMessage());
            formatter.printHelp("utility-name", options);

            System.exit(1);
        }

        String inputFilePath = cmd.getOptionValue("input");
        String outputFilePath = cmd.getOptionValue("output");

        System.out.println(inputFilePath);
        System.out.println(outputFilePath);

    }

}

命令行用法:

$> java -jar target/my-utility.jar -i asd                                                                                       
Missing required option: o

usage: utility-name
 -i,--input <arg>    input file path
 -o,--output <arg>   output file