페이지에서 입력한 암호와 데이터베이스에서의 암호 비교

    public BaseReturnInfo androidLogin(@RequestParam String phoneNumber, @RequestParam String pwd) {
        BaseReturnInfo baseReturnInfo = new BaseReturnInfo();
        UserInfo userInfo = userInfoRepository.getUserByPhoneNumber(phoneNumber);
        if (userInfo == null) {
            baseReturnInfo.setMsg("         ");
            baseReturnInfo.setStatus(1);
            return baseReturnInfo;
        }

        if (pwd != userInfo.getPwd()) {
            baseReturnInfo.setMsg("         ");
            baseReturnInfo.setStatus(1);
            return baseReturnInfo;
        }
        baseReturnInfo.setMsg(userInfo.getCompanyName());
        baseReturnInfo.setStatus(0);
        return baseReturnInfo;
    }

public BaseReturnInfo androidLogin(@RequestParam String phoneNumber, @RequestParam String pwd) {
        BaseReturnInfo baseReturnInfo = new BaseReturnInfo();
        UserInfo userInfo = userInfoRepository.getUserByPhoneNumber(phoneNumber);
        if (userInfo == null) {
            baseReturnInfo.setMsg("         ");
            baseReturnInfo.setStatus(1);
            return baseReturnInfo;
        }
        BCryptPasswordEncoder bCryptPasswordEncoder = new BCryptPasswordEncoder();//  
        //         pwd            userInfo.getPwd()
        boolean glag = bCryptPasswordEncoder.matches(pwd, userInfo.getPwd());//  
        if(!glag) {
            baseReturnInfo.setMsg("         ");
            baseReturnInfo.setStatus(1);
            return baseReturnInfo;
        }
        baseReturnInfo.setMsg(userInfo.getCompanyName());
        baseReturnInfo.setStatus(0);
        return baseReturnInfo;
    }

public boolean matches(CharSequence rawPassword, String encodedPassword) {
        if (encodedPassword == null || encodedPassword.length() == 0) {
            logger.warn("Empty encoded password");
            return false;
        }

        if (!BCRYPT_PATTERN.matcher(encodedPassword).matches()) {
            logger.warn("Encoded password does not look like BCrypt");
            return false;
        }

        return BCrypt.checkpw(rawPassword.toString(), encodedPassword);
    }

public class BCryptPasswordEncoder implements PasswordEncoder {
    private Pattern BCRYPT_PATTERN = Pattern.compile("\\A\\$2a?\\$\\d\\d\\$[./0-9A-Za-z]{53}");
        ····
}

//   
String regex = "\\b\\w{3}\\b";
//           
Pattern p = Pattern.compile(regex);
//              
Matcher m = p.matcher(s);
//           
//   find                
// public boolean find()

public class BCrypt {}

    public static boolean checkpw(String plaintext, String hashed) {
        return equalsNoEarlyReturn(hashed, hashpw(plaintext, hashed));
    }