配置RedisConfiguration后，序列化仍然报错，使用的还是JdkSerializationRedisSerializer

1. 配置代码

package com.istimeless.finance.paramcenter.configuration;

import com.fasterxml.jackson.annotation.JsonAutoDetect;
import com.fasterxml.jackson.annotation.PropertyAccessor;
import com.fasterxml.jackson.databind.ObjectMapper;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.data.redis.cache.RedisCacheConfiguration;
import org.springframework.data.redis.cache.RedisCacheManager;
import org.springframework.data.redis.connection.RedisConnectionFactory;
import org.springframework.data.redis.core.RedisTemplate;
import org.springframework.data.redis.serializer.Jackson2JsonRedisSerializer;
import org.springframework.data.redis.serializer.RedisSerializationContext;
import org.springframework.data.redis.serializer.StringRedisSerializer;

import java.time.Duration;

/**
 * @author lijiayin
 */
@Configuration
public class RedisConfiguration {
    
    @Autowired
    private Jackson2JsonRedisSerializer<Object> jackson2JsonRedisSerializer;
    
    @Bean
    public RedisTemplate<String, Object> redisTemplate(RedisConnectionFactory redisConnectionFactory){
        RedisTemplate<String, Object> redisTemplate = new RedisTemplate<>();
        redisTemplate.setConnectionFactory(redisConnectionFactory);
        redisTemplate.setValueSerializer(jackson2JsonRedisSerializer);
        redisTemplate.setKeySerializer(new StringRedisSerializer());
        return redisTemplate;
    }

    @Bean
    public RedisCacheManager cacheManager(RedisConnectionFactory redisConnectionFactory) {
        RedisCacheConfiguration redisCacheConfiguration = RedisCacheConfiguration.defaultCacheConfig();
        redisCacheConfiguration.serializeValuesWith(
                RedisSerializationContext.SerializationPair.fromSerializer(jackson2JsonRedisSerializer));
        redisCacheConfiguration.entryTtl(Duration.ofHours(12));
        RedisCacheManager.RedisCacheManagerBuilder builder = RedisCacheManager
                .builder(redisConnectionFactory).cacheDefaults(redisCacheConfiguration);
        return builder.build();
    }
    
    @Bean
    public Jackson2JsonRedisSerializer<Object> jackson2JsonRedisSerializer(){
        ObjectMapper objectMapper = new ObjectMapper();
        objectMapper.enableDefaultTyping(ObjectMapper.DefaultTyping.NON_FINAL);
        objectMapper.setVisibility(PropertyAccessor.ALL, JsonAutoDetect.Visibility.ANY);
        Jackson2JsonRedisSerializer<Object> jackson2JsonRedisSerializer =
                new Jackson2JsonRedisSerializer<>(Object.class);
        jackson2JsonRedisSerializer.setObjectMapper(objectMapper);
        return jackson2JsonRedisSerializer;
    }
}

2. 报错

   
   RedisCache序列化出错.png

解决方案

1. 错误原因
   查看RedisCacheConfiguration的serializeValuesWith方法

public RedisCacheConfiguration serializeValuesWith(SerializationPair<?> valueSerializationPair) {

    Assert.notNull(valueSerializationPair, "ValueSerializationPair must not be null!");

    return new RedisCacheConfiguration(ttl, cacheNullValues, usePrefix, keyPrefix, keySerializationPair,
                valueSerializationPair, conversionService);
}

会重新生成RedisCacheConfiguration并返回，而我的配置方法中，并没有接收返回的类

2. 解决方法
   将serializeValuesWith方法返回的类赋值给redisCacheConfiguration。