Question

在将Redis会话与Spring会话一起使用时无法访问属性。自动接线没有发生，因此该对象为null。不知道我在这里做什么错。

@自动连线私有RedisSentinelProperties redisSentinelProperties;

没有spring-session，它可以正常工作，没有任何问题。

我尝试了没有春季会议，它工作正常。能够访问所有属性，并且自动接线正确

@自动连线私有RedisSentinelProperties redisSentinelProperties;

自定义属性配置

@Component
@ConfigurationProperties(prefix = "app.redis")
@Validated
public class RedisSentinelProperties {
    @NotNull
    private String masterName;
    @Valid
    private Sentinel sentinel = new Sentinel();
    ////removed the getter and setter method for better readability

    public static class Sentinel {
        @NotEmpty
        private List<String> nodes = new ArrayList<>();

        //removed the getter and setter method for better readability
    }
}

application.properties

app.redis.master-name=mymaster
app.redis.sentinel.nodes=192.168.56.50:26379,192.168.56.50:26380,192.168.56.50:26381

spring-session配置

@SpringBootApplication
public class ConfigPropertiesDemoApplication {

    public static void main(String[] args) {
        SpringApplication.run(ConfigPropertiesDemoApplication.class, args);
    }
}

public class RedisHttpSessionInitializer extends AbstractHttpSessionApplicationInitializer {

    public RedisHttpSessionInitializer() {
        super(RedisHttpSessionConfig.class);
    }
}

@Configuration
@EnableRedisHttpSession
@EnableWebSecurity
public class RedisHttpSessionConfig {

    @Autowired
    private RedisSentinelProperties redisSentinelProperties;

    LettuceClientConfiguration clientConfig = LettuceClientConfiguration.builder()
            .readFrom(SLAVE_PREFERRED)
            .build();

    private Set<String> sentinelHostAndPorts(){
        Set<String> nodes = redisSentinelProperties.getSentinel().getNodes().stream().collect(Collectors.toSet());
        return nodes;
    }

    //This is where NullPointerException is thrown line 37 in the stack trace
    RedisSentinelConfiguration sentinelConfig = new RedisSentinelConfiguration(redisSentinelProperties.getMasterName(), sentinelHostAndPorts());

    @Bean
    public LettuceConnectionFactory connectionFactory() {
        return new LettuceConnectionFactory(sentinelConfig, clientConfig);
    }
}

下面是堆栈跟踪

由以下原因引起：java.lang.NullPointerException 在com.bt.consumer.configpropertiesdemo.config.RedisHttpSessionConfig。（RedisHttpSessionConfig.java:37）在com.bt.consumer.configpropertiesdemo.config.RedisHttpSessionConfig $$ EnhancerBySpringCGLIB $$ f6d40824。（）在sun.reflect.NativeConstructorAccessorImpl.newInstance0（本机方法）处在sun.reflect.NativeConstructorAccessorImpl.newInstance（NativeConstructorAccessorImpl.java:62）在sun.reflect.DelegatingConstructorAccessorImpl.newInstance（DelegatingConstructorAccessorImpl.java:45）在java.lang.reflect.Constructor.newInstance（Constructor.java:423）在org.springframework.beans.BeanUtils.instantiateClass（BeanUtils.java:172）

与Redis一起使用spring-session时@ConfigurationProperties的问题

0 个答案: