在Spring基本安全中，没有为id "null"映射任何PasswordEncoder。

我的代码在Spring版本1.5.6.RELEASE中运行良好。

但当我升级到2.0.0版本后，我的一些方法已经过时但仍然能正常工作。

当我根据There is no PasswordEncoder mapped for the id "null" with database authentication更改我的过时方法时，

它开始出现错误"there is no passwordencoder"。

这是我的代码。

WebConfig

@Configurable
@EnableWebSecurity
public class WebConfig extends WebSecurityConfigurerAdapter {
@Autowired
AppUserDetailsService appUserDetailsService;
@Override
protected void configure(AuthenticationManagerBuilder auth) throws Exception {
    auth.userDetailsService(appUserDetailsService);
}
@Bean
public static DelegatingPasswordEncoder passwordEncoder() {
 return (DelegatingPasswordEncoder) DelegatingPasswordEncoder.encode("noop");
}
protected void configure(AuthenticationManagerBuilder auth) throws Exception {
    auth.userDetailsService(appUserDetailsService).passwordEncoder(passwordEncoder());
}
@Bean
public PasswordEncoder passwordEncoder() {
    return PasswordEncoderFactories.createDelegatingPasswordEncoder();
}
@SuppressWarnings("deprecation")
@Bean
public WebMvcConfigurer corsConfigurer() {
    return new WebMvcConfigurerAdapter() {
        @Override
        public void addCorsMappings(CorsRegistry registry) {
            registry.addMapping("/**").allowedOrigins("http://localhost:4200");
        }
    };
}
@Override
public void configure(WebSecurity web) throws Exception {
    super.configure(web);
}
@Override
protected void configure(HttpSecurity http) throws Exception {
    http.cors().and()
    .authorizeRequests()
    .antMatchers("/account/register","/account/login","/logout").permitAll()
    .anyRequest().fullyAuthenticated().and()
    .logout()
    .permitAll()
    .logoutRequestMatcher(new AntPathRequestMatcher("/logout", "POST"))
    .and()
    .httpBasic().and()
.sessionManagement().sessionCreationPolicy(SessionCreationPolicy.IF_REQUIRED).and()
    .csrf().disable();
}
}

Account Controller

@RestController
@RequestMapping("account")
public class AccountController {
public static final Logger logger = LoggerFactory.getLogger(AccountController.class);
@Autowired
private UserService userService;
@CrossOrigin
@RequestMapping(value = "/register", method = RequestMethod.POST)
public ResponseEntity createUser(@RequestBody User newUser) {
    if (userService.find(newUser.getUsername()) != null) {
        logger.error("username Already exist " + newUser.getUsername());
        return new ResponseEntity(
                new CustomErrorType("user with username " + newUser.getUsername() + "already exist "),
                HttpStatus.CONFLICT);
    }
    newUser.setRole("USER");
    return new ResponseEntity(userService.save(newUser), HttpStatus.CREATED);
}
@CrossOrigin
@RequestMapping("/login")
public Principal user(Principal principal) {
    logger.info("user logged "+principal);
    return principal;
}
}

User Service

@Service
public class UserService {
@Autowired
UserRepository userRepository;
public User save(User user) {
    return userRepository.saveAndFlush(user);
}
public User update(User user) {
    return userRepository.save(user);
}
public User find(String userName) {
    return userRepository.findOneByUsername(userName);
}
}

我看到了所有相关的答案，但它们都是针对内存认证的。

Spring security : migrating 4.0 to 5.0 - Error -There is no PasswordEncoder mapped for the id “null”

Spring Security 5 : There is no PasswordEncoder mapped for the id "null"

Spring Boot PasswordEncoder Error

请帮忙。

我正在使用MySQL数据库。