将命令行unicode参数传递给Java代码

import java.nio.charset.StandardCharsets;

public class UnicodeCommandLineArgs {
    public static void main(String[] args) {
        if (args.length > 0) {
            String arg = args[0];
            byte[] bytes = arg.getBytes(StandardCharsets.UTF_8);
            String unicodeString = new String(bytes, StandardCharsets.UTF_8);
            System.out.println("Unicode string: " + unicodeString);
        } else {
            System.out.println("No command line arguments provided.");
        }
    }
}

javac UnicodeCommandLineArgs.java
java UnicodeCommandLineArgs 你好

Unicode string: 你好