如何在Spring中修复这种循环依赖？

Question

我正在使用 JWT 设置 Spring Security 配置，我需要创建一个自定义身份验证提供程序和一个自定义用户详细信息服务，但在安全配置类中正在生成它们之间的循环依赖关系...

SecurityConfig.class

package io.github.felipeemerson.openmuapi.configuration;

import com.nimbusds.jose.jwk.JWK;
import com.nimbusds.jose.jwk.JWKSet;
import com.nimbusds.jose.jwk.RSAKey;
import com.nimbusds.jose.jwk.source.ImmutableJWKSet;
import com.nimbusds.jose.jwk.source.JWKSource;
import com.nimbusds.jose.proc.SecurityContext;
import io.github.felipeemerson.openmuapi.entities.CustomUserDetails;
import io.github.felipeemerson.openmuapi.services.AccountDetailsService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.security.authentication.AuthenticationManager;
import org.springframework.security.authentication.AuthenticationProvider;
import org.springframework.security.authentication.dao.DaoAuthenticationProvider;
import org.springframework.security.config.Customizer;
import org.springframework.security.config.annotation.authentication.configuration.AuthenticationConfiguration;
import org.springframework.security.config.annotation.method.configuration.EnableMethodSecurity;
import org.springframework.security.config.annotation.web.configuration.EnableWebSecurity;
import org.springframework.security.config.annotation.web.configurers.AbstractHttpConfigurer;
import org.springframework.security.config.annotation.web.configurers.oauth2.server.resource.OAuth2ResourceServerConfigurer;
import org.springframework.security.config.annotation.web.builders.HttpSecurity;
import org.springframework.security.config.http.SessionCreationPolicy;
import org.springframework.security.core.userdetails.UserDetailsService;
import org.springframework.security.crypto.bcrypt.BCryptPasswordEncoder;
import org.springframework.security.crypto.password.PasswordEncoder;
import org.springframework.security.oauth2.jwt.JwtDecoder;
import org.springframework.security.oauth2.jwt.JwtEncoder;
import org.springframework.security.oauth2.jwt.NimbusJwtDecoder;
import org.springframework.security.oauth2.jwt.NimbusJwtEncoder;
import org.springframework.security.oauth2.server.resource.web.BearerTokenAuthenticationEntryPoint;
import org.springframework.security.oauth2.server.resource.web.access.BearerTokenAccessDeniedHandler;
import org.springframework.security.web.SecurityFilterChain;
import org.springframework.security.web.authentication.UsernamePasswordAuthenticationFilter;

import java.security.interfaces.RSAPrivateKey;
import java.security.interfaces.RSAPublicKey;

@Configuration
@EnableWebSecurity
public class SecurityConfig {

    @Value("${jwt.public.key}")
    private RSAPublicKey key;

    @Value("${jwt.private.key}")
    private RSAPrivateKey priv;

    @Autowired
    private UserDetailsService userDetailsService;

    @Autowired
    private AuthEntryPointJwt unauthorizedHandler;

    @Autowired
    private CustomAuthenticationProvider customAuthenticationProvider;

    @Bean
    public AuthTokenFilter authenticationJwTokenFilter() {
        return new AuthTokenFilter();
    }

    @Bean
    public AuthenticationManager authenticationManager() throws Exception {
        return customAuthenticationProvider::authenticate;
    }

    @Bean
    public PasswordEncoder passwordEncoder() {
        return new BCryptPasswordEncoder();
    }

    @Bean
    public SecurityFilterChain securityFilterChain(HttpSecurity http) throws Exception {
        http
                .csrf(AbstractHttpConfigurer::disable)
                .httpBasic(Customizer.withDefaults())
                .oauth2ResourceServer((oauth2) -> oauth2
                        .jwt(Customizer.withDefaults())
                )
                .exceptionHandling(exception -> exception.authenticationEntryPoint(unauthorizedHandler))
                .sessionManagement((session) -> session.sessionCreationPolicy(SessionCreationPolicy.STATELESS))
                .exceptionHandling((exceptions) -> exceptions
                        .authenticationEntryPoint(new BearerTokenAuthenticationEntryPoint())
                        .accessDeniedHandler(new BearerTokenAccessDeniedHandler())
                )
                .authorizeHttpRequests(auth ->auth
                        .requestMatchers("/login").permitAll()
                        .anyRequest().authenticated()
                )
                .authenticationProvider(customAuthenticationProvider)
                .addFilterBefore(authenticationJwTokenFilter(), UsernamePasswordAuthenticationFilter.class);

        return http.build();
    }

    @Bean
    public JwtDecoder jwtDecoder() {
        return NimbusJwtDecoder.withPublicKey(this.key).build();
    }

    @Bean
    public JwtEncoder jwtEncoder() {
        JWK jwk = new RSAKey.Builder(this.key).privateKey(this.priv).build();
        JWKSource<SecurityContext> jwks = new ImmutableJWKSet<>(new JWKSet(jwk));
        return new NimbusJwtEncoder(jwks);
    }

}

UserDetailsService.class

package io.github.felipeemerson.openmuapi.services;

import io.github.felipeemerson.openmuapi.entities.Account;
import io.github.felipeemerson.openmuapi.entities.CustomUserDetails;
import io.github.felipeemerson.openmuapi.exceptions.BadRequestException;
import io.github.felipeemerson.openmuapi.repositories.AccountRepository;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.security.core.authority.SimpleGrantedAuthority;
import org.springframework.security.core.userdetails.UserDetails;
import org.springframework.security.core.userdetails.UserDetailsService;
import org.springframework.security.core.userdetails.UsernameNotFoundException;
import org.springframework.stereotype.Service;

import java.util.Optional;
import java.util.Set;

@Service
public class AccountDetailsService implements UserDetailsService {

    @Autowired
    private AccountRepository accountRepository;

    @Override
    public UserDetails loadUserByUsername(String username) {
        return loadUser(username);
    }

    private UserDetails loadUser(String username) throws BadRequestException {
        Optional<Account> userAccountOpt = accountRepository.findByLoginName(username);

        if (userAccountOpt.isEmpty()){
            return null;
        }

        Account account = userAccountOpt.get();

        return new CustomUserDetails(account.getLoginName(), account.getPasswordHash(), true, Set.of(new SimpleGrantedAuthority("ROLE_USER")));
    }
}

CustomAuthenticationProvider.class

package io.github.felipeemerson.openmuapi.configuration;

import io.github.felipeemerson.openmuapi.exceptions.BadRequestException;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.security.authentication.AuthenticationProvider;
import org.springframework.security.authentication.UsernamePasswordAuthenticationToken;
import org.springframework.security.core.Authentication;
import org.springframework.security.core.userdetails.UserDetails;
import org.springframework.security.core.userdetails.UserDetailsService;
import org.springframework.security.crypto.password.PasswordEncoder;
import org.springframework.stereotype.Component;

@Component
public class CustomAuthenticationProvider implements AuthenticationProvider {

    @Autowired
    private final UserDetailsService userDetailsService;

    private final PasswordEncoder passwordEncoder;

    public CustomAuthenticationProvider(UserDetailsService userDetailsService,
                                        PasswordEncoder passwordEncoder) {
        this.userDetailsService = userDetailsService;
        this.passwordEncoder = passwordEncoder;
    }

    @Override
    public Authentication authenticate(Authentication authentication) throws BadRequestException {
        String username = authentication.getName();
        String password = authentication.getCredentials().toString();

        UserDetails userDetails = userDetailsService.loadUserByUsername(username);

        System.out.println(password);
        System.out.println(userDetails.getPassword());

        if (userDetails == null || !passwordEncoder.matches(password, userDetails.getPassword())) {
            throw new BadRequestException("Login or password incorrect.");
        }

        Authentication authenticated = new UsernamePasswordAuthenticationToken(
                userDetails, password, userDetails.getAuthorities());
        return authenticated;
    }

    @Override
    public boolean supports(Class<?> authentication) {
        return authentication.equals(UsernamePasswordAuthenticationToken.class);
    }
}

我尝试在 CustomAuthenticationProvider 的 UserDetailsService 依赖项中使用 @Lazy 但未解决。还尝试在 SecurityConfig 依赖项中使用 @Lazy...

编辑： 抱歉，我忘记了日志：

Description:

The dependencies of some of the beans in the application context form a cycle:

┌─────┐
|  securityConfig (field private io.github.felipeemerson.openmuapi.configuration.CustomAuthenticationProvider io.github.felipeemerson.openmuapi.configuration.SecurityConfig.customAuthenticationProvider)
↑     ↓
|  customAuthenticationProvider defined in file [C:\Users\felip\OneDrive\Documentos\Cursos\openmu-api\target\classes\io\github\felipeemerson\openmuapi\configuration\CustomAuthenticationProvider.class]
└─────┘

Answer 1

问题是你希望 Spring 将

CustomAuthenticationProvider

注入到

SecurityConfig

类中：

public class SecurityConfig {

    @Autowired
    private CustomAuthenticationProvider customAuthenticationProvider;

但是要创建一个

CustomAuthenticationProvider

Spring 需要一个

PasswordEncoder

public class CustomAuthenticationProvider implements AuthenticationProvider {

     public CustomAuthenticationProvider(UserDetailsService userDetailsService,
                                        PasswordEncoder passwordEncoder) {
     }

并创建一个

PasswordEncoder

Spring 需要完全初始化的

SecurityConfig

（因为

SecurityConfig

创建了

PasswordEncoder

）。

解决方案是将

CustomAuthenticationProvider

的创建也移至

SecurityConfig

:

public class SecurityConfig {

    @Bean
    public PasswordEncoder passwordEncoder() {
        return new BCryptPasswordEncoder();
    }

    @Bean
    public CustomAuthenticationProvider customAuthenticationProvider(UserDetailsService userDetailsService, PasswordEncoder passwordEncoder) {
        return new CustomAuthenticationProvider(userDetailsService, passwordEncoder);
    }