Java：Picocli：如何提供参数以命令而不命名？

发布于 2025-01-27 18:32:20 字数 666 浏览 2 评论 0原文

是否可以在 @commandline.command中提供参数，而无需在picocli中明确命名参数？

例如，可以将以下命令调用为：打开n 1。但是，我希望能够将命令称为open 1。

@CommandLine.Command(name = "open",
    mixinStandardHelpOptions = true,
    version = "1.0",
    description = "Open note")
@Getter
@ToString
public class OpenCommand implements Runnable {
    @CommandLine.ParentCommand TopLevelCommand parent;


    @CommandLine.Option(names = {"number", "n"}, description = "Number of note to open")
    private Integer number;


    public void run() {

        System.out.println(String.format("Number of note that will be opened: " + number));
    }
}

原文

Is it possible to provide argument to @CommandLine.Command without explicitly naming the argument in picocli?

As example the following command can be invoked as: open n 1. However, I would like to be able to invoke the command as open 1.

@CommandLine.Command(name = "open",
    mixinStandardHelpOptions = true,
    version = "1.0",
    description = "Open note")
@Getter
@ToString
public class OpenCommand implements Runnable {
    @CommandLine.ParentCommand TopLevelCommand parent;


    @CommandLine.Option(names = {"number", "n"}, description = "Number of note to open")
    private Integer number;


    public void run() {

        System.out.println(String.format("Number of note that will be opened: " + number));
    }
}

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余生再见 2025-02-03 18:32:20

picocli提供@parameters 位置参数除<代码外， > @option 注释，该注释是 new nore noreferrer“> nater参数。

如果您使用@parameters对该号码的注释，而不是@option（names =“ n”），则最终用户可以将命令称为open 1。

这是一个相当最小的变化，结果代码看起来像这样：

@CommandLine.Command(name = "open",
    mixinStandardHelpOptions = true,
    version = "1.0",
    description = "Open note")
@Getter
@ToString
public class OpenCommand implements Runnable {
    @CommandLine.ParentCommand TopLevelCommand parent;

    @CommandLine.Parameters(description = "Number of notes to open")
    private Integer number;

    public void run() {
        System.out.printf("Number of notes that will be opened: %s%n", number);
    }
}

Picocli offers the @Parameters annotation for positional parameters, in addition to the @Option annotation, which is for named parameters.

If you use the @Parameters annotation for the number, instead of @Option(names = "n"), then end users can invoke the command as open 1.

That is a fairly minimal change, the resulting code could look like this:

@CommandLine.Command(name = "open",
    mixinStandardHelpOptions = true,
    version = "1.0",
    description = "Open note")
@Getter
@ToString
public class OpenCommand implements Runnable {
    @CommandLine.ParentCommand TopLevelCommand parent;

    @CommandLine.Parameters(description = "Number of notes to open")
    private Integer number;

    public void run() {
        System.out.printf("Number of notes that will be opened: %s%n", number);
    }
}

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