隐藏命令行中的输入

Question

我知道命令行界面（例如Git等）能够隐藏用户的输入（对于密码有用）。有没有办法用Java编程地做到这一点？我正在从用户那里输入密码，我希望他们的输入在该特定行（而不是所有用户）上被“隐藏”。这是我的代码（尽管我怀疑这会有所帮助…）

try (Scanner input = new Scanner(System.in)) {
  //I'm guessing it'd probably be some property you set on the scanner or System.in right here...
  System.out.print("Please input the password for " + name + ": ");
  password = input.nextLine();
}

Answer 1

尝试java.io.Console.readPassword。不过，您至少必须运行Java
6。

   /**
    * Reads a password or passphrase from the console with echoing disabled
    *
    * @throws IOError
    *         If an I/O error occurs.
    *
    * @return  A character array containing the password or passphrase read
    *          from the console, not including any line-termination characters,
    *          or <tt>null</tt> if an end of stream has been reached.
    */
    public char[] readPassword() {
        return readPassword("");
    }

请注意，这不适用于Eclipse控制台。您必须从
真实的 console / shell / terminal / prompt 运行程序才能进行测试。