我尝试使用authenticationManager在服务内部手动验证用户：

Authentication authenticate = authenticationManager.authenticate(
            new UsernamePasswordAuthenticationToken(
                    user,
                    senha,
                    Collections.emptyList()
            ));

但每次我从经理那里得到以下异常：

"There is no PasswordEncoder mapped for the id \"null\""

正在通过以下方式导入authenticationManager：

@Autowired
private AuthenticationManager authenticationManager;

我已经尝试将密码输入更改为{bcrypt}password，以通知正确的passwordEncoder，但错误仍然存在，我还创建了一个BCryptPassword Bean，它在配置文件中定义，如下所示：

@Configuration
    public class BeansConfig {
        @Bean
        public BCryptPasswordEncoder bCryptPasswordEncoder(){
            return new BCryptPasswordEncoder();
        }
    }

EDIT 1：这是发送到authenticationManager的密码格式：{bcrypt}$2a$10$[...]
编辑2：正如建议的那样，我已经在BCryptPasswordEncoder的同一个配置文件中实现了以下Bean：

@Bean
public PasswordEncoder delegatingPasswordEncoder() {
    PasswordEncoder defaultEncoder = new StandardPasswordEncoder();
    Map<String, PasswordEncoder> encoders = new HashMap<>();
    encoders.put("bcrypt", new BCryptPasswordEncoder());
    encoders.put("scrypt", new SCryptPasswordEncoder());

    DelegatingPasswordEncoder passworEncoder = new DelegatingPasswordEncoder(
      "bcrypt", encoders);
    passworEncoder.setDefaultPasswordEncoderForMatches(defaultEncoder);

    return passworEncoder;
}

但错误依然存在。
有关更多问题，请参阅我在WebSecurity.java文件中配置密码编码的方式：

@Override
        protected void configure(AuthenticationManagerBuilder auth) throws Exception {
            auth.userDetailsService(userDetailsService).passwordEncoder(bCryptPasswordEncoder);
    }

EDIT 4：按照建议，我删除了BCryptPassword bean，并将密码编码设置为delegatingPasswordEncoding，如下所示：

@Autowired
private PasswordEncoder passwordEncoder;

public WebSecurity(UserDetailsServiceImpl userService, PasswordEncoder passwordEncoder){
        this.userDetailsService = userService;
        this.passwordEncoder = passwordEncoder;
}

@Override
protected void configure(AuthenticationManagerBuilder auth) throws Exception {
        auth.userDetailsService(userDetailsService).passwordEncoder(this.passwordEncoder);
}

但现在我得到了以下错误，

java.lang.IllegalArgumentException: Detected a Non-hex character at 1 or 2 position
    at org.springframework.security.crypto.codec.Hex.decode(Hex.java:58) ~[spring-security-crypto-5.7.1.jar:5.7.1]
    at org.springframework.security.crypto.password.StandardPasswordEncoder.decode(StandardPasswordEncoder.java:106) ~[spring-security-crypto-5.7.1.jar:5.7.1]

我的密码，仍然，beeing发送这样：{bcrypt}$2a$10$[...]
作为参考，我试着这样做：https://www.baeldung.com/manually-set-user-authentication-spring-security