在 Spring Boot 应用程序中从缓存获取期间使用 @AutoValue 注释反序列化 class

Question

我创建了一个带有 com.google.auto.value.AutoValue 注释的值 class：

@AutoValue
@JsonDeserialize(builder = AutoValue_Company.Builder.class)
public abstract class Company {

public static Builder newBuilder() {
    return new AutoValue_Company.Builder();
}

@JsonProperty("id")
public abstract long id();

@JsonProperty("description")
public abstract String description();

@JsonProperty("websiteUrl")
public abstract String websiteUrl();

@AutoValue.Builder
public interface Builder {
    @JsonProperty("id")
    Builder id(long id);

    @JsonProperty("description")
    Builder description(String description);

    @JsonProperty("websiteUrl")
    Builder websiteUrl(String url);

    Company build();
}
}

从服务接收到此类 class 的实例并将结果缓存在 Redis 中：

@Cacheable(value = "company")
public Company getValue(String id)

这是 RedisCacheManager 的配置：

@Bean(name = "valueCacheManager")
public RedisCacheManager valueCacheManager(final RedisConnectionFactory connectionFactory) {
    final RedisCacheWriter redisCacheWriter = RedisCacheWriter.lockingRedisCacheWriter(connectionFactory);
    RedisCacheConfiguration cacheConfiguration = RedisCacheConfiguration.defaultCacheConfig()
            .serializeValuesWith(RedisSerializationContext.SerializationPair.fromSerializer(new GenericJackson2JsonRedisSerializer()));
    cacheConfiguration = cacheConfiguration.entryTtl(Duration.ofSeconds(100));
    return new RedisCacheManager(redisCacheWriter, cacheConfiguration);
}

因此与反序列化相关的问题：

com.fasterxml.jackson.databind.exc.InvalidDefinitionException: No serializer found for class com.test.models.AutoValue_Company and no properties discovered to create BeanSerializer (to avoid exception, disable SerializationFeature.FAIL_ON_EMPTY_BEANS)

Answer 1

也许您应该使用 getters 约定命名您的方法，例如getId() 等等？我认为 this 是相关的。

Answer 2

通过将序列化程序 GenericJackson2JsonRedisSerializer 更改为 Jackson2JsonRedisSerializer<>(Company.class)

找到了解决方案

所以缓存配置现在看起来像这样：

@Bean(name = "valueCacheManager")
public RedisCacheManager valueCacheManager(final RedisConnectionFactory connectionFactory) {
    final RedisCacheWriter redisCacheWriter = RedisCacheWriter.lockingRedisCacheWriter(connectionFactory);
    RedisCacheConfiguration cacheConfiguration = RedisCacheConfiguration.defaultCacheConfig()
             .serializeValuesWith(RedisSerializationContext.SerializationPair.fromSerializer(new Jackson2JsonRedisSerializer<>(Company.class)));
    cacheConfiguration = cacheConfiguration.entryTtl(Duration.ofSeconds(100));
    return new RedisCacheManager(redisCacheWriter, cacheConfiguration);
}

在 Spring Boot 应用程序中从缓存获取期间使用 @AutoValue 注释反序列化 class

Deserialize class with @AutoValue annotation during getting from cache in SpringBoot application

java

jackson

deserialization

spring-boot

auto-value