java - 在 Spring Boot 中 FindByIndexNameSessionRepository 不能为空

Question

我正在尝试为我的 Spring Security 应用程序实现记住功能。我也使用了 Redis。我配置了，SpringSessionBackedSessionRegistry bean 。但是当我尝试 @Autowired FindByIndexNameSessionRepository我收到以下错误，

Caused by: java.lang.IllegalArgumentException: sessionRepositorycannot be null

代码如下，

@Configuration
@EnableWebSecurity
public class SecurityConfig extends WebSecurityConfigurerAdapter {

    @Autowired
    private FindByIndexNameSessionRepository<? extends Session> sessionRepository;
    
    @Bean
    public SpringSessionBackedSessionRegistry sessionRegistry() {
        return new SpringSessionBackedSessionRegistry(this.sessionRepository);
    }
}

Handler.java

@Component
public class Handler {

    private @Autowired SessionRegistry sessionRegistry;
    private @Autowired FindByIndexNameSessionRepository<? extends Session> sessionRepository;
    
}

和 Redis session 配置，

@Configuration
@EnableSpringHttpSession
public class SessionConfig {

    private final RedisConnectionFactory redisConnectionFactory;

    public SessionConfig(ObjectProvider<RedisConnectionFactory> redisConnectionFactory) {
        this.redisConnectionFactory = redisConnectionFactory.getIfAvailable();
    }
    
    @Bean
    public RedisOperations<String, Object> sessionRedisOperations() {
        RedisTemplate<String, Object> redisTemplate = new RedisTemplate<>();
        redisTemplate.setConnectionFactory(this.redisConnectionFactory);
        redisTemplate.setKeySerializer(new StringRedisSerializer());
        redisTemplate.setHashKeySerializer(new StringRedisSerializer());
        return redisTemplate;
    }

    @Bean
    public RedisSessionRepository redisSessionRepository(RedisOperations<String, Object> sessionRedisOperations) {
        return new RedisSessionRepository(sessionRedisOperations);
    }
}

我收到错误，例如，

Caused by: java.lang.IllegalArgumentException: sessionRepositorycannot be null Caused by:org.springframework.beans.BeanInstantiationException: Failed toinstantiate[org.springframework.session.security.SpringSessionBackedSessionRegistry]:Circular reference involving containing bean 'securityConfig' -consider declaring the factory method as static for independence fromits containing instance. Factory method 'sessionRegistry' threwexception; nested exception is java.lang.IllegalArgumentException:sessionRepository cannot be null Caused by:org.springframework.beans.factory.BeanCreationException: Errorcreating bean with name 'sessionRegistry' defined in class pathresource [SecurityConfig.class]: Bean instantiation via factory methodfailed; nested exception isorg.springframework.beans.BeanInstantiationException: Failed toinstantiate[org.springframework.session.security.SpringSessionBackedSessionRegistry]:Circular reference involving containing bean 'securityConfig' -consider declaring the factory method as static for independence fromits containing instance. Factory method 'sessionRegistry' threwexception; nested exception is java.lang.IllegalArgumentException:sessionRepository cannot be null

它还说，

No beans of 'FindByIndexNameSessionRepository<? extends Session>' typefound.

那么我在这里做错了什么？

Answer 1

也许，我不确定，因为这个循环依赖错误......
无论如何，问题可能正在发生，因为您实际上没有 FindByIndexNameSessionRepository在您的 Spring 上下文中注入(inject)，至少不是您要配置的那个，而是一个 SessionRepository , 因为你定义了一个 RedisSessionRepository 类型的 bean这个接口(interface)实现了SessionRepository ，而不是 FindByIndexNameSessionRepository .请尝试使用 RedisIndexedSessionRepository 相反，类似:

@Configuration
@EnableSpringHttpSession
public class SessionConfig {

    private final RedisConnectionFactory redisConnectionFactory;

    public SessionConfig(ObjectProvider<RedisConnectionFactory> redisConnectionFactory) {
        this.redisConnectionFactory = redisConnectionFactory.getIfAvailable();
    }
    
    @Bean
    public RedisOperations<String, Object> sessionRedisOperations() {
        RedisTemplate<String, Object> redisTemplate = new RedisTemplate<>();
        redisTemplate.setConnectionFactory(this.redisConnectionFactory);
        redisTemplate.setKeySerializer(new StringRedisSerializer());
        redisTemplate.setHashKeySerializer(new StringRedisSerializer());
        return redisTemplate;
    }

    @Bean
    public FindByIndexNameSessionRepository redisSessionRepository(RedisOperations<String, Object> sessionRedisOperations) {
        return new RedisIndexedSessionRepository(sessionRedisOperations);
    }
}