组织机构代码和社会信用代码校验

public class ValidateUtils {
    protected static final Logger logger = LoggerFactory.getLogger(ValidateUtils.class);  
    private static final String BASE_CODE_STRING = "0123456789ABCDEFGHJKLMNPQRTUWXY";
    
    private static final char[] BASE_CODE_ARRAY = BASE_CODE_STRING.toCharArray();
    private static final List<Character> BASE_CODES = new ArrayList<>();
     //验证社会信用代码字符长度及格式
    private static final String BASE_CODE_REGEX = "[" + BASE_CODE_STRING + "]{18}";
     //验证组织机构代码字符长度及格式
    private static final String BASE_CODE_REGEX2 = "[" + BASE_CODE_STRING + "]{9}";
    //18位社会信用代码加权因子
    private static final int[] WEIGHT = {1, 3, 9, 27, 19, 26, 16, 17, 20, 29, 25, 13, 8, 24, 10, 30, 28};
    //9位组织机构加权因子
    private static final int[] WEIGHT2 = {3,7,9,10,5,8,4,2};
    
    
     static {
        for (char c : BASE_CODE_ARRAY) {
            BASE_CODES.add(c);
        }
    }
      /**
       * isValidEntpCode:验证企业社会信用代码是否正确
       * @param socialCreditCode
       * @return
       * @return :boolean
       * @Date:2020年5月18日 上午11:36:52
       */
    public static final boolean isValidEntpCode(String socialCreditCode) {  
         if (StringUtils.isBlank(socialCreditCode) || !Pattern.matches(BASE_CODE_REGEX, socialCreditCode)) {
             return false;
         }
         char[] businessCodeArray = socialCreditCode.toCharArray();
         char check = businessCodeArray[17];
         int sum = 0;
         for (int i = 0; i < 17; i++) {
             char key = businessCodeArray[i];
             sum += (BASE_CODES.indexOf(key) * WEIGHT[i]);
         }
         int value = 31 - sum % 31;
         return check == BASE_CODE_ARRAY[value % 31];
    }  
    /**
     * isSearchMechanism:验证企业组织机构代码是否正确
     * @param mechanismCode
     * @return
     * @return :boolean
     * @Date:2020年5月18日 上午11:36:44
     */
    public static boolean isSearchMechanism(String mechanismCode) {
        Pattern.matches(BASE_CODE_REGEX2, mechanismCode);
        if (!Pattern.matches(BASE_CODE_REGEX2, mechanismCode)) {
            return false;
        }
        char[] socialCreditCodeArray = mechanismCode.toCharArray();
        char check = socialCreditCodeArray[8];
        int sum = 0;
        for (int i = 0; i < 8; i++) {
            sum += (BASE_CODES.indexOf(socialCreditCodeArray[i]) * WEIGHT2[i]);
        }
        int mods = 11 - sum % 11;
        String c = "";
        switch (mods) {
        case 10:
            c = "X";
            break;
        case 11:
            c = "0";
            break;
        default:
            c = mods + "";
        }
        return  String.valueOf(check).equals(c);
    }  
   /**
    * isValidUnitCode:验证是否是组织机构代码或社会信用代码
    * @param unitCode
    * @return
    * @return :boolean
    * @Date:2020年5月18日 下午2:11:53
    */
    public static final boolean isValidUnitCode(String unitCode) {  
        if (StringUtils.isBlank(unitCode)) {
         return false;
     }
       boolean res=isValidEntpCode(unitCode);  //
       if(!res){
           res=isSearchMechanism(unitCode);
       }
       return res;
   }
    
    
    public static void main(String[] args) throws UnsupportedEncodingException {
    System.out.println(isValidUnitCode("101193948"));
    }
}