密码随机生成器

本代码密码复杂度8-25位，特殊字符、数字、字母大小写全都支持，可以直接cp使用

public class PasswordGenerator {

    private static final char[] CHARR = "[email protected]#$%&*".toCharArray();
    private static final String PASSWORD_REGEX = "^(?![a-zA-Z]+$)(?![A-Z0-9]+$)(?![[email protected]#$^&*=?','+'。'-'/]+$)(?![a-z0-9]+$)(?![[email protected]#$^&*=?','+'。'-'/]+$)(?![[email protected]#$^&*=?','+'。'-'/]+$)[[email protected]#$^&*=?','+'。'-'/]{8,20}$";
    private static final Pattern PASSWORD_PATTERN = Pattern.compile(PASSWORD_REGEX);

    public static String generatePassword(int length) {
        length = length < 8 ? 8 : length;
        length = length > 25 ? 25 : length;
        String result = getRandomPassword(length);
        Matcher m = PASSWORD_PATTERN.matcher(result);
        if (m.matches()) {
            return result;
        }
        return generatePassword(length);
    }

    private static String getRandomPassword(int length) {
        StringBuilder sb = new StringBuilder();
        ThreadLocalRandom r = ThreadLocalRandom.current();
        for (int x = 0; x < length; ++x) {
            sb.append(CHARR[r.nextInt(CHARR.length)]);
        }
        return sb.toString();
    }
}