package com.example.sso.util;

import java.util.regex.Matcher;
import java.util.regex.Pattern;

public class StringUtil {
    /**
     * 判断是否包含特殊字段
     *
     * @param username
     * @return
     */
    public static Boolean isContainSpecialChar(String username) {
        String regEx = "^[0-9a-zA-Z_]{1,}$";
        Pattern p = Pattern.compile(regEx);
        Matcher m = p.matcher(username);
        return m.find();
    }
}