/**
 * 必须重写序列化器，否则@Cacheable注解的key会报类型转换错误
 *
 */
public class StringRedisSerializer implements RedisSerializer<Object> {

    private final Charset charset;

    private final String target = "\"";

    private final String replacement = "";

    public StringRedisSerializer() {
        this(Charset.forName("UTF8"));
    }

    public StringRedisSerializer(Charset charset) {
        Assert.notNull(charset, "Charset must not be null!");
        this.charset = charset;
    }

    @Override
    public String deserialize(byte[] bytes) {
        return (bytes == null ? null : new String(bytes, charset));
    }

    @Override
    public byte[] serialize(Object object) {
        String string = JSON.toJSONString(object);
        if (string == null) {
            return null;
        }
        string = string.replace(target, replacement);
        return string.getBytes(charset);
    }
}

public class FastJsonRedisSerializer<T> implements RedisSerializer<T> {

    public static final Charset DEFAULT_CHARSET = Charset.forName("UTF-8");

    private Class<T> clazz;

    public FastJsonRedisSerializer(Class<T> clazz) {
        super();
        this.clazz = clazz;
    }

    @Override
    public byte[] serialize(T t) throws SerializationException {
        if (t == null) {
            return new byte[0];
        }
        return JSON.toJSONString(t, SerializerFeature.WriteClassName).getBytes(DEFAULT_CHARSET);
    }

    @Override
    public T deserialize(byte[] bytes) throws SerializationException {
        if (bytes == null || bytes.length <= 0) {
            return null;
        }
        String str = new String(bytes, DEFAULT_CHARSET);
        return (T) JSON.parseObject(str, clazz);
    }

}

import com.esotericsoftware.kryo.Kryo;
import com.esotericsoftware.kryo.io.Input;
import com.esotericsoftware.kryo.io.Output;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.data.redis.serializer.RedisSerializer;
import org.springframework.data.redis.serializer.SerializationException;

import java.io.ByteArrayOutputStream;

/**
 * @param <T>
 * @author yuhao.wang
 */
public class KryoRedisSerializer<T> implements RedisSerializer<T> {
    Logger logger = LoggerFactory.getLogger(KryoRedisSerializer.class);

    public static final byte[] EMPTY_BYTE_ARRAY = new byte[0];

    private static final ThreadLocal<Kryo> kryos = ThreadLocal.withInitial(Kryo::new);

    private Class<T> clazz;

    public KryoRedisSerializer(Class<T> clazz) {
        super();
        this.clazz = clazz;
    }

    @Override
    public byte[] serialize(T t) throws SerializationException {
        if (t == null) {
            return EMPTY_BYTE_ARRAY;
        }

        Kryo kryo = kryos.get();
        kryo.setReferences(false);
        kryo.register(clazz);

        try (ByteArrayOutputStream baos = new ByteArrayOutputStream();
             Output output = new Output(baos)) {
            kryo.writeClassAndObject(output, t);
            output.flush();
            return baos.toByteArray();
        } catch (Exception e) {
            logger.error(e.getMessage(), e);
        }

        return EMPTY_BYTE_ARRAY;
    }

    @Override
    public T deserialize(byte[] bytes) throws SerializationException {
        if (bytes == null || bytes.length <= 0) {
            return null;
        }

        Kryo kryo = kryos.get();
        kryo.setReferences(false);
        kryo.register(clazz);

        try (Input input = new Input(bytes)) {
            return (T) kryo.readClassAndObject(input);
        } catch (Exception e) {
            logger.error(e.getMessage(), e);
        }

        return null;
    }

}

@Configuration
public class RedisConfig {

    /**
     * 重写Redis序列化方式，使用Json方式:
     * 当我们的数据存储到Redis的时候，我们的键（key）和值（value）都是通过Spring提供的Serializer序列化到数据库的。RedisTemplate默认使用的是JdkSerializationRedisSerializer，StringRedisTemplate默认使用的是StringRedisSerializer。
     * Spring Data JPA为我们提供了下面的Serializer：
     * GenericToStringSerializer、Jackson2JsonRedisSerializer、JacksonJsonRedisSerializer、JdkSerializationRedisSerializer、OxmSerializer、StringRedisSerializer。
     * 在此我们将自己配置RedisTemplate并定义Serializer。
     *
     * @param redisConnectionFactory
     * @return
     */
    @Bean
    public RedisTemplate<String, Object> redisTemplate(RedisConnectionFactory redisConnectionFactory) {
        RedisTemplate<String, Object> redisTemplate = new RedisTemplate<>();
        redisTemplate.setConnectionFactory(redisConnectionFactory);
        
        FastJsonRedisSerializer<Object> fastJsonRedisSerializer = new FastJsonRedisSerializer<>(Object.class);
        // 全局开启AutoType，不建议使用
        // ParserConfig.getGlobalInstance().setAutoTypeSupport(true);
        // 建议使用这种方式，小范围指定白名单
        ParserConfig.getGlobalInstance().addAccept("com.xiaolyuh.");

        // 设置值（value）的序列化采用FastJsonRedisSerializer。
        redisTemplate.setValueSerializer(fastJsonRedisSerializer);
        redisTemplate.setHashValueSerializer(fastJsonRedisSerializer);
        // 设置键（key）的序列化采用StringRedisSerializer。
        redisTemplate.setKeySerializer(new StringRedisSerializer());
        redisTemplate.setHashKeySerializer(new StringRedisSerializer());

        redisTemplate.afterPropertiesSet();
        return redisTemplate;
    }

}