通过数据库身份验证，没有映射ID为“ null”的PasswordEncoder

我更改了MyUserDetailsS​​ervice类的添加

passwordEnprer

增加线

BCryptPasswordEnprer enprer = passwordEnprer();

换线

//changed, user.getPassword() as enprer.enpre(user.getPassword())return new org.springframework.security.core.userdetails.User(--)

MyUserDetailsS​​ervice.java

@Overridepublic UserDetails loadUserByUsername(String username) throws UsernameNotFoundException {    BCryptPasswordEnprer enprer = passwordEnprer();    User user = userRepository.findByUsername(username);    if(user == null){        throw new UsernameNotFoundException("User Name "+username +"Not Found");    }    return new org.springframework.security.core.userdetails.User(user.getUserName(),enprer.enpre(user.getPassword()),getGrantedAuthorities(user));}@Beanpublic BCryptPasswordEnprer passwordEnprer() {    return new BCryptPasswordEnprer();}