java - 隐藏命令行输入

Question

我知道 Git 和其他命令行界面能够隐藏用户的输入(对密码很有用)。有没有办法在Java中以编程方式做到这一点？我正在从用户那里获取密码输入，我希望他们的输入被“隐藏”在该特定行上(但不是在所有行上)。这是我的代码(虽然我怀疑它会有所帮助......)

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

试试 java.io.Console.readPassword .不过，您必须至少运行 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("");
    }

但请注意，这个 doesn't work使用 Eclipse 控制台。您必须从 true 控制台/shell/终端/提示符运行程序才能对其进行测试。