java - 有没有办法从 Apache commons-cli 选项值中自动去除前导空格？

Question

考虑以下示例:

import org.apache.commons.cli.CommandLine;
import org.apache.commons.cli.CommandLineParser;
import org.apache.commons.cli.DefaultParser;
import org.apache.commons.cli.Option;
import org.apache.commons.cli.Options;
import org.apache.commons.cli.ParseException;

public class ApacheCommonsCliWhitespaceTest {

  public static void main(String[] args) throws ParseException {
    Options options = new Options();
    Option option = new Option("t", "test", true, "test description");
    options.addOption(option);

    CommandLineParser parser = new DefaultParser();

    String[] parameters = new String[1];

    parameters[0] = "-t ping";
    CommandLine result = parser.parse(options, parameters);
    System.out.println("*" + result.getOptionValue("t") + "*");

    parameters[0] = "-test ping";
    result = parser.parse(options, parameters);
    System.out.println("*" + result.getOptionValue("t") + "*");
  }
}

结果会是

* ping*
* ping*

真的没有办法自动删除前导空格吗？我原以为这是一个常见的用例。

Answer 1

尝试

result.getOptionValue("t").trim()