java 中的 Java . net . password authentication 类

原文:https://www . geesforgeks . org/Java-net-password authentication-class-in-Java/

PasswordAuthentication 类是由 java.net 包提供的，用于实现网络应用程序，当需要保存将由 Authenticator 使用的数据时，就会用到它。它保存用户名和密码。

其构造函数的语法:

PasswordAuthentication(String userName, char[] password)

这将为给定的用户名和密码创建新的密码身份验证对象。给定的用户密码在存储到新的密码身份验证对象之前会被克隆。

| way | Return type | | --- | --- | | Get user name () | Returns the user name. | | getPassword() | Return the user password. |

方法详情:

  1. getUserName():这将给出用户名并返回一个字符串值。
  2. getPassword():这将返回用户密码并返回字符数组。

方法继承自 java.lang.Object 类:

  1. 等于()
  2. toString()
  3. hashCode()
  4. 克隆()
  5. getClass()
  6. 最终确定()
  7. 通知()
  8. notifyAll()

Java 语言(一种计算机语言，尤用于创建网站)

// Java Program to illustrate the 
// java.net.PasswordAuthentication
// Class
import java.io.*;
import java.net.PasswordAuthentication;

class GFG {

    public static void main(String args[])
    {
        GFG acc = new GFG();
        acc.proceed();
    }

    private void proceed()
    {
        // Initializing the user name
        String userName = "Geek";

        // Initializing the password - This is a char
        // array since the PasswordAuthentication
        // supports this argument
        char[] password = { 'g', 'e', 'e', 'k', 'g', 'o',
                            'r', 'g', 'e', 'e', 'k', 's' };

        PasswordAuthentication passwordAuthentication
            = new PasswordAuthentication(userName,
                                         password);
        System.out.println(
            "UserName: "
            + passwordAuthentication.getUserName());

        // The below getPassword actually returns the
        // reference to the password as per the Java API
        // documentation.
        System.out.println(
            "Password: "
            + passwordAuthentication.getPassword());

        // You can get the password in normal string
        System.out.println(
            "Password: "
            + String.copyValueOf(
                passwordAuthentication.getPassword()));
    }
}

Output

UserName: Geek
Password: [C@4e50df2e
Password: geekgorgeeks

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