redis 序列化配置

package com.chunwai.utils;

import org.springframework.cache.CacheManager;
import org.springframework.cache.annotation.CachingConfigurerSupport;
import org.springframework.cache.interceptor.*;
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.GenericJackson2JsonRedisSerializer;
import org.springframework.data.redis.serializer.RedisSerializationContext;
import org.springframework.data.redis.serializer.StringRedisSerializer;
import javax.annotation.Resource;

/**
*@author liangjunwei
*@create 2022/1/31 12:53
*/
@Configuration
public class CacheConfig extends CachingConfigurerSupport {

@Resource
private RedisConnectionFactory factory;

/**
* 自定义生成redis-key ， 类名.方法名
* @return
*/
@Override
@Bean
public KeyGenerator keyGenerator() {
return (o, method, objects) -> {
StringBuilder sb = new StringBuilder();
sb.append(o.getClass().getName()).append(".");
sb.append(method.getName()).append(".");
for (Object obj : objects) {
sb.append(obj.toString());
}
return sb.toString();
};
}

/**
* 使用JSON进行序列化
* @return
*/
@Bean
public RedisTemplate<Object, Object> redisTemplate() {
RedisTemplate<Object, Object> redisTemplate = new RedisTemplate<>();
redisTemplate.setConnectionFactory(factory);
//JSON格式序列化
GenericJackson2JsonRedisSerializer genericJackson2JsonRedisSerializer = new GenericJackson2JsonRedisSerializer();
//key的序列化
redisTemplate.setKeySerializer(genericJackson2JsonRedisSerializer);
//value的序列化
redisTemplate.setValueSerializer(genericJackson2JsonRedisSerializer);
//hash结构key的虚拟化
redisTemplate.setHashKeySerializer(new StringRedisSerializer());
//hash结构value的虚拟化
redisTemplate.setHashValueSerializer(genericJackson2JsonRedisSerializer);
return redisTemplate;
}

@Bean
@Override
public CacheResolver cacheResolver() {
return new SimpleCacheResolver(cacheManager());
}

@Bean
@Override
public CacheErrorHandler errorHandler() {
// 用于捕获从Cache中进行CRUD时的异常的回调处理器。
return new SimpleCacheErrorHandler();
}

/**
* 缓存管理器
* @return
*/
@Bean
@Override
public CacheManager cacheManager() {
RedisCacheConfiguration cacheConfiguration = RedisCacheConfiguration.defaultCacheConfig()
//不允许空值
.disableCachingNullValues()
//值使用JSON虚拟化
.serializeValuesWith(RedisSerializationContext.SerializationPair.fromSerializer(new GenericJackson2JsonRedisSerializer()));
return RedisCacheManager.builder(factory).cacheDefaults(cacheConfiguration).build();
}
}