字符串到星号，屏蔽密码 [英] String to asterisk, masking password

问题描述

我正在为ATM机创建此简单的登录代码.输入用户名和密码，然后登录，效果很好.由于我没有连接到数据库或外部文本文件，而且我只有1个用户，因此它只是用Java代码编写的.但是，当您输入密码"p4ss"时，我希望它被屏蔽，因此与其在输入时不显示在屏幕上，不如在屏幕上看到"* * * *"或"(就像在Linux上输入pass一样).

I'm creating this simple login code for an ATM machine. You enter username and password and you logs in, that works just great. Since I'm not connecting to a database or an external text file and I've just got 1 user, it's just written plainly in the Java code. But when you enter the password "p4ss" I want it to be masked, so instead of seing it on the screen while typing you should see "* * * *" or " " just blank (Like when you enter pass on Linux).

当前我的代码如下:

    String user;
    String pass;            
    System.out.print("User: ");
    user = Keyboard.readString();
    System.out.print("Pass: ");
    pass = Keyboard.readString();

    if ((user.equals("Admin")) && (pass.equals("p4ss")))            
    {       
        menu();      
    }    
    else
    {       
        out.println("Wrong username or password.");
    }

非常感谢我能提供的帮助.

Would appreciate any help I could get.

推荐答案

Michael，看看Sun网站上的描述: https://web.archive.org/web/20120214061606/http://java.sun.com/developer/technicalArticles/Security/pwordmask

Michael, have a look at the description on Sun's website: https://web.archive.org/web/20120214061606/http://java.sun.com/developer/technicalArticles/Security/pwordmask

或者，如果您使用的是Java 5或更高版本，则可以使用以下命令:如何在Java 5中屏蔽密码?

Or, if you're using Java 5 or newer, you can use this: How to mask a password in Java 5?

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