Passay 简明教程
Passay - LengthComplexityRule
LengthComplexityRule 有助于根据密码长度定义其适用的规则。请考虑以下策略。
-
如果密码长度在1到5个字符之间，则仅允许小写字母。
-
如果密码长度在 6 至 8 个字符之间，则只允许使用 a、b 和 c。
Example
以下示例显示了使用 Passay 库根据上述策略对密码进行验证的过程。
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));
}
}
}