主要是网上错误的代码太多，为了避免大家踩坑，特此更正，详细规则如下：
GB 32100-2015 法人和其他组织统一社会信用代码编码规则
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<>();
private static final String BASE_CODE_REGEX = "[" + BASE_CODE_STRING + "]{18}";
private static final int[] WEIGHT = {1, 3, 9, 27, 19, 26, 16, 17, 20, 29, 25, 13, 8, 24, 10, 30, 28};
static {
for (char c : BASE_CODE_ARRAY) {
BASE_CODES.add(c);
}
}
/**
* 是否是有效的统一社会信用代码
*
* @param socialCreditCode 统一社会信用代码
* @return
*/
public static boolean isValidSocialCreditCode(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];
}
