spring启动应用程序，用户登录后想更改密码，但我的功能是不更改密码。

@PostMapping("/settings/passwordupdate")
    public String PasswordUpdate(@RequestParam("oldPassword") String oldPassword,
            @RequestParam("newPassword") String newPassword, Principal principal) {

        String userName = principal.getName();
        User currentUser = serviceUserDetail.findByUserName(userName);
        final BCryptPasswordEncoder passwordEncoder = new BCryptPasswordEncoder();
        System.out.println(newPassword + " ||||  " + passwordEncoder.encode(currentUser.getPassword()));    
        if (passwordEncoder.matches(oldPassword, passwordEncoder.encode(currentUser.getPassword()))) {

            System.out.print("match");

        } else {
            System.out.print("not match");
        }
        return "redirect:/";
    }

结果是

pass ||||  $2a$10$Y3JMpBg/3l4SHJY/X8XRS.O3vLxr64iLLoLY3r933irwsnrvCIr2q
not match---------------

而我可以通过密码“pass”登录，这意味着密码是好的