Passay - 快速指南

Passay - 概述

Passay是一个基于 Java 的密码生成和验证库。它提供了全面的功能列表以验证/生成密码，并且具有高度可配置性。

Passay元件

Passay API 有 3 个核心组件。

规则- 定义密码策略规则集的一个或多个规则。
PasswordValidator - 一个验证器组件，根据给定的规则集验证密码。
PasswordGenerator - 生成密码以满足给定规则集的生成器组件。

规则概述

规则是密码验证和生成的基础块。有两大类规则 -

正向匹配要求密码满足规则。
否定匹配拒绝满足规则的密码。

特征

以下是 Passay 库提供的一些功能。

密码验证Passay 库通过根据可配置的规则集验证密码来帮助实施密码策略。它针对常见用例拥有一组丰富的现有规则。对于其他情况，它提供了一个简单的 Rule 接口来实现自定义规则。
密码生成- 它提供了一个可配置的规则集，也可用于生成密码。
命令行工具- 它提供了自动执行密码策略的工具。
方便- 易于使用。
可扩展- 所有 Passay 组件都是可扩展的。
支持国际化- Passay 组件已做好国际化准备。

Passay - 环境设置

设置Java

如果您仍然愿意为 Java 编程语言设置环境，那么本节将指导您如何在计算机上下载和设置 Java。请按照以下步骤设置环境。

Java SE 可以通过下载 Java链接免费获得。因此，您可以根据您的操作系统下载一个版本。

按照说明下载 Java 并运行 .exe以在您的计算机上安装 Java。在计算机上安装 Java 后，您需要设置环境变量以指向正确的安装目录 -

设置 Windows 2000/XP 的路径

我们假设您已将 Java 安装在c:\Program Files\java\jdk目录中 -

右键单击“我的电脑”并选择“属性”。
单击“高级”选项卡下的“环境变量”按钮。
现在，更改“Path”变量，使其也包含 Java 可执行文件的路径。例如，如果路径当前设置为“C:\WINDOWS\SYSTEM32”，则将路径更改为“C:\WINDOWS\SYSTEM32;c:\Program Files\java\jdk\bin”。

设置 Windows 95/98/ME 的路径

我们假设您已将 Java 安装在c:\Program Files\java\jdk目录中 -

编辑 'C:\autoexec.bat' 文件并在末尾添加以下行 - 'SET PATH=%PATH%;C:\Program Files\java\jdk\bin'

设置 Linux、UNIX、Solaris、FreeBSD 的路径

应将环境变量 PATH 设置为指向 Java 二进制文件的安装位置。如果您在执行此操作时遇到问题，请参阅您的 shell 文档。

例如，如果您使用 bash 作为 shell，那么您可以将以下行添加到“.bashrc:export PATH=/path/to/java:$PATH”的末尾

流行的 Java 编辑器

要编写 Java 程序，您需要一个文本编辑器。市场上有许多复杂的 IDE。但现在，您可以考虑以下其中一项 -

记事本- 在 Windows 计算机上，您可以使用任何简单的文本编辑器，例如记事本（本教程推荐）、TextPad。
Netbeans - 它是一个开源且免费的 Java IDE，可以从https://www.netbeans.org/index.html下载。
Eclipse - 它也是由 eclipse 开源社区开发的 Java IDE，可以从https://www.eclipse.org/下载。

下载Passay档案

从Maven 存储库下载最新版本的 Passay jar 文件- 。在本教程中，下载 passay-1.6.1.jar 并将其复制到 C:\> passay 文件夹中。

操作系统	档案名称
Windows	Passay-1.6.1.jar
Linux	Passay-1.6.1.jar
苹果	Passay-1.6.1.jar

设置Passay环境

将PASSAY环境变量设置为指向计算机上存储 Passay jar 的基本目录位置。假设我们在各种操作系统上的 Passay 文件夹中提取了 passay-1.6.1.jar，如下所示。

操作系统	输出
Windows	将环境变量 PASSAY 设置为 C:\Passay
Linux	导出 PASSAY=/usr/local/Passay
苹果	导出 PASSAY=/库/Passay

设置 CLASSPATH 变量

将CLASSPATH环境变量设置为指向 Passay jar 位置。假设您已将 passay-1.6.1.jar 存储在各种操作系统上的 Passay 文件夹中，如下所示。

操作系统	输出
Windows	设置环境变量CLASSPATH为%CLASSPATH%;%Passay%\passay-1.6.1.jar;.;
Linux	导出 CLASSPATH=$CLASSPATH:$PASSAY/passay-1.6.1.jar:.
苹果	导出 CLASSPATH=$CLASSPATH:$PASSAY/passay-1.6.1.jar:.

Passay - 密码验证

典型的密码策略包含一组规则来检查密码是否符合组织规则。考虑以下政策：

密码长度应在 8 到 16 个字符之间。
密码不应包含任何空格。
密码应包含以下各项：大写字母、小写字母、数字和符号。

例子

下面的示例显示了使用 Passay 库根据上述策略验证密码。

import java.util.ArrayList;
import java.util.List;

import org.passay.CharacterRule;
import org.passay.EnglishCharacterData;
import org.passay.LengthRule;
import org.passay.PasswordData;
import org.passay.PasswordValidator;
import org.passay.Rule;
import org.passay.RuleResult;
import org.passay.WhitespaceRule;

public class PassayExample {
    public static void main(String[] args) {
        
        List<Rule> rules = new ArrayList<>();        
        //Rule 1: Password length should be in between 
        //8 and 16 characters
        rules.add(new LengthRule(8, 16));        
        //Rule 2: No whitespace allowed
        rules.add(new WhitespaceRule());        
        //Rule 3.a: At least one Upper-case character
        rules.add(new CharacterRule(EnglishCharacterData.UpperCase, 1));        
        //Rule 3.b: At least one Lower-case character
        rules.add(new CharacterRule(EnglishCharacterData.LowerCase, 1));        
        //Rule 3.c: At least one digit
        rules.add(new CharacterRule(EnglishCharacterData.Digit, 1));        
        //Rule 3.d: At least one special character
        rules.add(new CharacterRule(EnglishCharacterData.Special, 1));
        
        PasswordValidator validator = new PasswordValidator(rules);        
        PasswordData password = new PasswordData("Microsoft@123");        
        RuleResult result = validator.validate(password);
        
        if(result.isValid()){
            System.out.println("Password validated.");
        }else{
            System.out.println("Invalid Password: " + validator.getMessages(result));            
        }
    }
}

输出

Password validated.

Passay - 定制消息

Passay 库提供了 MessageResolver API 来覆盖验证器使用的默认消息。它可以采用自定义属性文件的路径并使用标准键来覆盖所需的消息。

例子

下面的示例显示了密码验证并显示使用 Passay 库的自定义消息。

消息.属性

INSUFFICIENT_UPPERCASE=Password missing at least %1$s uppercase characters.

PassayExample.java

import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.IOException;
import java.net.URL;
import java.util.ArrayList;
import java.util.List;
import java.util.Properties;

import org.passay.CharacterRule;
import org.passay.EnglishCharacterData;
import org.passay.LengthRule;
import org.passay.MessageResolver;
import org.passay.PasswordData;
import org.passay.PasswordValidator;
import org.passay.PropertiesMessageResolver;
import org.passay.Rule;
import org.passay.RuleResult;
import org.passay.WhitespaceRule;

public class PassayExample {
   public static void main(String[] args) throws FileNotFoundException, IOException {
      List<Rule> rules = new ArrayList<>();
      rules.add(new LengthRule(8, 16));
      rules.add(new WhitespaceRule());
      rules.add(new CharacterRule(EnglishCharacterData.UpperCase, 1));
      rules.add(new CharacterRule(EnglishCharacterData.LowerCase, 1));
      rules.add(new CharacterRule(EnglishCharacterData.Digit, 1));
      rules.add(new CharacterRule(EnglishCharacterData.Special, 1));

      Properties props = new Properties();
      props.load(new FileInputStream("E:/Test/messages.properties"));
      MessageResolver resolver = new PropertiesMessageResolver(props);

      PasswordValidator validator = new PasswordValidator(resolver, rules);
      PasswordData password = new PasswordData("microsoft@123");
      RuleResult result = validator.validate(password);
      if(result.isValid()){
         System.out.println("Password validated.");
      }else{
         System.out.println("Invalid Password: " + validator.getMessages(result));            
      }
   }
}

输出

Invalid Password: [Password missing at least 1 uppercase characters.]

Passay - N 条规则中的 M 条

很多时候，密码策略要求遵守给定规则中的最低规则，例如密码必须符合至少 M of N 规则。考虑以下政策。

密码长度应在 8 到 16 个字符之间。
密码不应包含任何空格。
密码应至少包含以下三项：大写字母、小写字母、数字或符号。

例子

下面的示例显示了使用 Passay 库根据上述策略验证密码。

import java.io.FileNotFoundException;
import java.io.IOException;

import org.passay.CharacterCharacteristicsRule;
import org.passay.CharacterRule;
import org.passay.EnglishCharacterData;
import org.passay.LengthRule;
import org.passay.PasswordData;
import org.passay.PasswordValidator;
import org.passay.Rule;
import org.passay.RuleResult;
import org.passay.WhitespaceRule;

public class PassayExample {
   public static void main(String[] args) throws FileNotFoundException, IOException {
      //Rule 1: Password length should be in between 
      //8 and 16 characters
      Rule rule1 = new LengthRule(8, 16);        
      //Rule 2: No whitespace allowed
      Rule rule2 = new WhitespaceRule();        
      CharacterCharacteristicsRule rule3 = new CharacterCharacteristicsRule();        
      //M - Mandatory characters count
      rule3.setNumberOfCharacteristics(3);        
      //Rule 3.a: One Upper-case character
      rule3.getRules().add(new CharacterRule(EnglishCharacterData.UpperCase, 1));        
      //Rule 3.b: One Lower-case character
      rule3.getRules().add(new CharacterRule(EnglishCharacterData.LowerCase, 1));        
      //Rule 3.c: One digit
      rule3.getRules().add(new CharacterRule(EnglishCharacterData.Digit, 1));        
      //Rule 3.d: One special character
      rule3.getRules().add(new CharacterRule(EnglishCharacterData.Special, 1));

      PasswordValidator validator = new PasswordValidator(rule1, rule2, rule3);        
      PasswordData password = new PasswordData("microsoft@123");        
      RuleResult result = validator.validate(password);

      if(result.isValid()){
         System.out.println("Password validated.");
      }else{
         System.out.println("Invalid Password: " + validator.getMessages(result));            
      }
   }
}

输出

Password validated.

Passay - 密码生成

PasswordGenerator有助于使用给定策略生成密码。考虑以下政策 -

密码长度应为 8 个字符。
密码应包含以下各项：大写字母、小写字母、数字和符号。

例子

下面的示例显示了使用 Passay 库根据上述策略生成密码。

import org.passay.CharacterRule;
import org.passay.EnglishCharacterData;
import org.passay.PasswordGenerator;

public class PassayExample {
   public static void main(String[] args) {
      CharacterRule alphabets = new CharacterRule(EnglishCharacterData.Alphabetical);
      CharacterRule digits = new CharacterRule(EnglishCharacterData.Digit);
      CharacterRule special = new CharacterRule(EnglishCharacterData.Special);

      PasswordGenerator passwordGenerator = new PasswordGenerator();
      String password = passwordGenerator.generatePassword(8, alphabets, digits, special);
      System.out.println(password);
   }
}

输出

?\DE~@c3

Passay -AllowedCharacterRule

AllowedCharacterRule允许指定密码可以包含的字符。考虑以下示例。

例子

下面的示例显示了使用 Passay 库根据上述策略验证密码。

import org.passay.AllowedCharacterRule;
import org.passay.LengthRule;
import org.passay.PasswordData;
import org.passay.PasswordValidator;
import org.passay.Rule;
import org.passay.RuleResult;

public class PassayExample {
   public static void main(String[] args) {
      //Rule: Password should contains only a, b and c       
      Rule rule1 = new AllowedCharacterRule(new char[] {'a', 'b', 'c'});
      //8 and 16 characters
      Rule rule2 = new LengthRule(8, 16);    

      PasswordValidator validator = new PasswordValidator(rule1, rule2);
      PasswordData password = new PasswordData("abcabcab1");
      RuleResult result = validator.validate(password);

      if(result.isValid()){
         System.out.println("Password validated.");
      }else{
         System.out.println("Invalid Password: " + validator.getMessages(result));            
      }
   }
}

输出

Invalid Password: [Password contains the illegal character '1'.]

Passay -AllowedRegexRule

AllowedRegexRule允许指定密码应满足的常规模式。考虑以下示例。

例子

下面的示例显示了使用 Passay 库根据上述策略验证密码。

import org.passay.AllowedRegexRule;
import org.passay.LengthRule;
import org.passay.PasswordData;
import org.passay.PasswordValidator;
import org.passay.Rule;
import org.passay.RuleResult;

public class PassayExample {
   public static void main(String[] args) {
      //Rule: Password should contains alphabets only
      Rule rule1 = new AllowedRegexRule("^[A-Za-z]+$");
      //8 and 16 characters
      Rule rule2 = new LengthRule(8, 16);    

      PasswordValidator validator = new PasswordValidator(rule1, rule2);
      PasswordData password = new PasswordData("microsoft@123");
      RuleResult result = validator.validate(password);

      if(result.isValid()){
         System.out.println("Password validated.");
      }else{
         System.out.println("Invalid Password: " + validator.getMessages(result));            
      }
   }
}

输出

Invalid Password: [Password must match pattern '^[A-Za-z]+$'.]

Passay - 字符规则

CharacterRule有助于定义一组字符和最小字符数。密码中所需的字符数。

例子

下面的示例显示了使用 Passay 库根据上述策略验证密码。

import java.util.ArrayList;
import java.util.List;

import org.passay.CharacterRule;
import org.passay.EnglishCharacterData;
import org.passay.LengthRule;
import org.passay.PasswordData;
import org.passay.PasswordValidator;
import org.passay.Rule;
import org.passay.RuleResult;
import org.passay.WhitespaceRule;

public class PassayExample {
    public static void main(String[] args) {
        
        List<Rule> rules = new ArrayList<>();        
        //Rule 1: Password length should be in between 
        //8 and 16 characters
        rules.add(new LengthRule(8, 16));        
        //Rule 2: No whitespace allowed
        rules.add(new WhitespaceRule());        
        //Rule 3.a: At least one Upper-case character
        rules.add(new CharacterRule(EnglishCharacterData.UpperCase, 1));        
        //Rule 3.b: At least one Lower-case character
        rules.add(new CharacterRule(EnglishCharacterData.LowerCase, 1));        
        //Rule 3.c: At least one digit
        rules.add(new CharacterRule(EnglishCharacterData.Digit, 1));        
        //Rule 3.d: At least one special character
        rules.add(new CharacterRule(EnglishCharacterData.Special, 1));
        
        PasswordValidator validator = new PasswordValidator(rules);        
        PasswordData password = new PasswordData("Microsoft@123");        
        RuleResult result = validator.validate(password);
        
        if(result.isValid()){
            System.out.println("Password validated.");
        }else{
            System.out.println("Invalid Password: " + validator.getMessages(result));            
        }
    }
}

输出

Password validated.

Passay - 长度规则

LengthRule有助于定义密码的最小和最大长度。

例子

下面的示例显示了使用 Passay 库根据上述策略验证密码。

import java.util.ArrayList;
import java.util.List;

import org.passay.CharacterRule;
import org.passay.EnglishCharacterData;
import org.passay.LengthRule;
import org.passay.PasswordData;
import org.passay.PasswordValidator;
import org.passay.Rule;
import org.passay.RuleResult;
import org.passay.WhitespaceRule;

public class PassayExample {
    public static void main(String[] args) {
        
        List<Rule> rules = new ArrayList<>();        
        //Rule 1: Password length should be in between 
        //8 and 16 characters
        rules.add(new LengthRule(8, 16));        
        //Rule 2: No whitespace allowed
        rules.add(new WhitespaceRule());        
        //Rule 3.a: At least one Upper-case character
        rules.add(new CharacterRule(EnglishCharacterData.UpperCase, 1));        
        //Rule 3.b: At least one Lower-case character
        rules.add(new CharacterRule(EnglishCharacterData.LowerCase, 1));        
        //Rule 3.c: At least one digit
        rules.add(new CharacterRule(EnglishCharacterData.Digit, 1));        
        //Rule 3.d: At least one special character
        rules.add(new CharacterRule(EnglishCharacterData.Special, 1));
        
        PasswordValidator validator = new PasswordValidator(rules);        
        PasswordData password = new PasswordData("Microsoft@123");        
        RuleResult result = validator.validate(password);
        
        if(result.isValid()){
            System.out.println("Password validated.");
        }else{
            System.out.println("Invalid Password: " + validator.getMessages(result));            
        }
    }
}

输出

Password validated.

Passay-CharacterCharacteristicsRule

CharacterCharacteristicsRule有助于定义密码是否满足给定的 N 个定义的规则。

例子

下面的示例显示了使用 Passay 库根据上述策略验证密码。

import java.io.FileNotFoundException;
import java.io.IOException;

import org.passay.CharacterCharacteristicsRule;
import org.passay.CharacterRule;
import org.passay.EnglishCharacterData;
import org.passay.LengthRule;
import org.passay.PasswordData;
import org.passay.PasswordValidator;
import org.passay.Rule;
import org.passay.RuleResult;
import org.passay.WhitespaceRule;

public class PassayExample {
   public static void main(String[] args) throws FileNotFoundException, IOException {
      //Rule 1: Password length should be in between 
      //8 and 16 characters
      Rule rule1 = new LengthRule(8, 16);        
      //Rule 2: No whitespace allowed
      Rule rule2 = new WhitespaceRule();        
      CharacterCharacteristicsRule rule3 = new CharacterCharacteristicsRule();        
      //M - Mandatory characters count
      rule3.setNumberOfCharacteristics(3);        
      //Rule 3.a: One Upper-case character
      rule3.getRules().add(new CharacterRule(EnglishCharacterData.UpperCase, 1));        
      //Rule 3.b: One Lower-case character
      rule3.getRules().add(new CharacterRule(EnglishCharacterData.LowerCase, 1));        
      //Rule 3.c: One digit
      rule3.getRules().add(new CharacterRule(EnglishCharacterData.Digit, 1));        
      //Rule 3.d: One special character
      rule3.getRules().add(new CharacterRule(EnglishCharacterData.Special, 1));

      PasswordValidator validator = new PasswordValidator(rule1, rule2, rule3);        
      PasswordData password = new PasswordData("microsoft@123");        
      RuleResult result = validator.validate(password);

      if(result.isValid()){
         System.out.println("Password validated.");
      }else{
         System.out.println("Invalid Password: " + validator.getMessages(result));            
      }
   }
}

输出

Password validated.

Passay - 长度复杂性规则

LengthComplexityRule有助于根据密码长度定义适用的规则。考虑以下政策。

如果密码长度在 1 到 5 个字符之间，则仅允许使用小写字母。
如果密码长度在 6 到 8 个字符之间，则只允许使用 a、b 和 c。

例子

下面的示例显示了使用 Passay 库根据上述策略验证密码。

import org.passay.AllowedCharacterRule;
import org.passay.CharacterRule;
import org.passay.EnglishCharacterData;
import org.passay.LengthComplexityRule;
import org.passay.PasswordData;
import org.passay.PasswordValidator;
import org.passay.RuleResult;

public class PassayExample {
   public static void main(String[] args) {
      LengthComplexityRule lengthComplexityRule = new LengthComplexityRule();
      //Rule: Password of 1 to 5 characters should contains lower case alphabets only
      lengthComplexityRule.addRules("[1,5]", 
         new CharacterRule(EnglishCharacterData.LowerCase, 5));
      //8 and 16 characters
      lengthComplexityRule.addRules("[6,8]", 
         new AllowedCharacterRule(new char[] { 'a', 'b', 'c' }));    
      PasswordValidator validator = new PasswordValidator(lengthComplexityRule);
      PasswordData password = new PasswordData("abcdef");
      RuleResult result = validator.validate(password);
      if(result.isValid()){
         System.out.println("Password validated.");
      }else{
         System.out.println("Invalid Password: " + validator.getMessages(result));            
      }
   }
}

输出

Invalid Password: [
Password contains the illegal character 'd'., 
Password contains the illegal character 'e'., 
Password contains the illegal character 'f'., 
Password meets 0 complexity rules, but 1 are required.]

Passay - IllegalCharacterRule

IllegalCharacterRule允许指定密码中不允许的字符。考虑以下示例。

import org.passay.IllegalCharacterRule;
import org.passay.NumberRangeRule;
import org.passay.PasswordData;
import org.passay.PasswordValidator;
import org.passay.RuleResult;
import org.passay.WhitespaceRule;

public class PassayExample {
   public static void main(String[] args) {
      //Rule: Special characters like &, <, > are not allowed in a password 
      IllegalCharacterRule illegalCharacterRule 
         = new IllegalCharacterRule(new char[] {'&', '<', '>'});

      //Rule: 1 to 5 numbers are not allowed
      NumberRangeRule numberRangeRule = new NumberRangeRule(1, 5);

      //Rule: White spaces are not allowed
      WhitespaceRule whitespaceRule = new WhitespaceRule();

      PasswordValidator validator 
         = new PasswordValidator(illegalCharacterRule,numberRangeRule,whitespaceRule);
      PasswordData password = new PasswordData("abc&4d  ef6");
      RuleResult result = validator.validate(password);

      if(result.isValid()){
         System.out.println("Password validated.");
      }else{
         System.out.println("Invalid Password: " + validator.getMessages(result));            
      }
   }
}

输出

Invalid Password: [
Password contains the illegal character '&'.,
Password contains the number '4'.,
Password contains a whitespace character.]

Passay - NumberRangeRule

NumberRangeRule允许指定密码中不允许的数字范围。考虑以下示例。

import org.passay.IllegalCharacterRule;
import org.passay.NumberRangeRule;
import org.passay.PasswordData;
import org.passay.PasswordValidator;
import org.passay.RuleResult;
import org.passay.WhitespaceRule;

public class PassayExample {
   public static void main(String[] args) {
      //Rule: Special characters like &, <, > are not allowed in a password 
      IllegalCharacterRule illegalCharacterRule 
         = new IllegalCharacterRule(new char[] {'&', '<', '>'});

      //Rule: 1 to 5 numbers are not allowed
      NumberRangeRule numberRangeRule = new NumberRangeRule(1, 5);

      //Rule: White spaces are not allowed
      WhitespaceRule whitespaceRule = new WhitespaceRule();

      PasswordValidator validator 
         = new PasswordValidator(illegalCharacterRule,numberRangeRule,whitespaceRule);
      PasswordData password = new PasswordData("abc&4d  ef6");
      RuleResult result = validator.validate(password);

      if(result.isValid()){
         System.out.println("Password validated.");
      }else{
         System.out.println("Invalid Password: " + validator.getMessages(result));            
      }
   }
}

输出

Invalid Password: [
Password contains the illegal character '&'.,
Password contains the number '4'.,
Password contains a whitespace character.]

Passay - 空白规则

WhitespaceRule允许指定密码中不允许使用空格。考虑以下示例。

例子

import org.passay.IllegalCharacterRule;
import org.passay.NumberRangeRule;
import org.passay.PasswordData;
import org.passay.PasswordValidator;
import org.passay.RuleResult;
import org.passay.WhitespaceRule;

public class PassayExample {
   public static void main(String[] args) {
      //Rule: Special characters like &, <, > are not allowed in a password 
      IllegalCharacterRule illegalCharacterRule 
         = new IllegalCharacterRule(new char[] {'&', '<', '>'});

      //Rule: 1 to 5 numbers are not allowed
      NumberRangeRule numberRangeRule = new NumberRangeRule(1, 5);

      //Rule: White spaces are not allowed
      WhitespaceRule whitespaceRule = new WhitespaceRule();

      PasswordValidator validator 
         = new PasswordValidator(illegalCharacterRule,numberRangeRule,whitespaceRule);
      PasswordData password = new PasswordData("abc&4d  ef6");
      RuleResult result = validator.validate(password);

      if(result.isValid()){
         System.out.println("Password validated.");
      }else{
         System.out.println("Invalid Password: " + validator.getMessages(result));            
      }
   }
}

输出

Invalid Password: [
Password contains the illegal character '&'.,
Password contains the number '4'.,
Password contains a whitespace character.]

Passay - DictionaryRule

DictionaryRule允许检查某些单词是否未指定为密码。考虑以下示例。

例子

import org.passay.DictionaryRule;
import org.passay.PasswordData;
import org.passay.PasswordValidator;
import org.passay.RuleResult;
import org.passay.dictionary.ArrayWordList;
import org.passay.dictionary.WordListDictionary;

public class PassayExample {
   public static void main(String[] args) {
      WordListDictionary wordListDictionary = new WordListDictionary(
         new ArrayWordList(new String[] { "password", "username" }));
      DictionaryRule dictionaryRule = new DictionaryRule(wordListDictionary);
      PasswordValidator validator 
         = new PasswordValidator(dictionaryRule);
      PasswordData password = new PasswordData("password");
      RuleResult result = validator.validate(password);

      if(result.isValid()){
         System.out.println("Password validated.");
      }else{
         System.out.println("Invalid Password: " + validator.getMessages(result));            
      }
   }
}

输出

Invalid Password: [Password contains the dictionary word 'password'.]

Passay - DictionarySubstringRule

DictionarySubstringRule允许检查某些单词是否不是密码的一部分。考虑以下示例。

例子

import org.passay.DictionarySubstringRule;
import org.passay.PasswordData;
import org.passay.PasswordValidator;
import org.passay.RuleResult;
import org.passay.dictionary.ArrayWordList;
import org.passay.dictionary.WordListDictionary;

public class PassayExample {
   public static void main(String[] args) {
      WordListDictionary wordListDictionary = new WordListDictionary(
         new ArrayWordList(new String[] { "password", "username" }));
      DictionarySubstringRule dictionaryRule = new DictionarySubstringRule(wordListDictionary);
      PasswordValidator validator 
         = new PasswordValidator(dictionaryRule);
      PasswordData password = new PasswordData("password@123");
      RuleResult result = validator.validate(password);

      if(result.isValid()){
         System.out.println("Password validated.");
      }else{
         System.out.println("Invalid Password: " + validator.getMessages(result));            
      }
   }
}

输出

Invalid Password: [Password contains the dictionary word 'password'.]

Passay - 历史规则

HistoryRule允许检查给定的密码在最近是否未被使用过。考虑以下示例。

例子

import org.passay.HistoryRule;
import org.passay.PasswordData;
import org.passay.PasswordValidator;
import org.passay.RuleResult;
import org.passay.SourceRule;

public class PassayExample {
   public static void main(String[] args) {
      SourceRule sourceRule = new SourceRule();
      HistoryRule historyRule = new HistoryRule();
      PasswordValidator validator 
         = new PasswordValidator(sourceRule, historyRule);
      PasswordData password = new PasswordData("password@123");
      password.setPasswordReferences(
         new PasswordData.SourceReference("source", "password"), 
         new PasswordData.HistoricalReference("password@123")
      );
      RuleResult result = validator.validate(password);

      if(result.isValid()){
         System.out.println("Password validated.");
      }else{
         System.out.println("Invalid Password: " + validator.getMessages(result));            
      }
   }
}

输出

Invalid Password: [Password matches one of 1 previous passwords.]

Passay - RepeatCharacterRegexRule

RepeatCharacterRegexRule允许检查给定的密码是否具有重复的 ascii 字符。考虑以下示例。

例子

import org.passay.LengthRule;
import org.passay.PasswordData;
import org.passay.PasswordValidator;
import org.passay.RepeatCharacterRegexRule;
import org.passay.Rule;
import org.passay.RuleResult;

public class PassayExample {
   public static void main(String[] args) {
      //Rule: Password should not contain repeated entries
      Rule rule1 = new RepeatCharacterRegexRule(3);
      //8 and 16 characters
      Rule rule2 = new LengthRule(8, 16);    

      PasswordValidator validator = new PasswordValidator(rule1, rule2);
      PasswordData password = new PasswordData("aaefhehhhhh");
      RuleResult result = validator.validate(password);

      if(result.isValid()){
         System.out.println("Password validated.");
      }else{
         System.out.println("Invalid Password: " + validator.getMessages(result));            
      }
   }
}

输出

Invalid Password: [Password matches the illegal pattern 'hhh'.]

Passay - 用户名规则

UsernameRule确保密码不包含用户名。考虑以下示例。

例子

import org.passay.PasswordData;
import org.passay.PasswordValidator;
import org.passay.Rule;
import org.passay.RuleResult;
import org.passay.UsernameRule;

public class PassayExample {
   public static void main(String[] args) {
      //Rule: Password should not contain user-name
      Rule rule = new UsernameRule();
      
      PasswordValidator validator = new PasswordValidator(rule);
      PasswordData password = new PasswordData("microsoft");
      password.setUsername("micro");
      RuleResult result = validator.validate(password);

      if(result.isValid()){
         System.out.println("Password validated.");
      }else{
         System.out.println("Invalid Password: " + validator.getMessages(result));            
      }
   }
}

输出

Invalid Password: [Password contains the user id 'micro'.]