package com.linkgroup.config;
import com.fasterxml.jackson.annotation.JsonAutoDetect;
import com.fasterxml.jackson.annotation.PropertyAccessor;
import com.fasterxml.jackson.databind.ObjectMapper;
import org.springframework.cache.CacheManager;
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.RedisSerializer;
import org.springframework.data.redis.serializer.StringRedisSerializer;
import java.time.Duration;
/**
* @description:
* @author: Seldom
* @time: 2019/10/12 15:52
*/
@Configuration
public class RedisConfig {
/**
* 配置自定义redisTemplate
* 因为使用的连接客户端为:Lettuce,所以RedisConnectionFactory实际传入数据为 LettuceConnectionFactory
*
* @param connectionFactory
* @return
*/
@Bean
public RedisTemplate<String, Object> redisTemplate(RedisConnectionFactory connectionFactory) {
RedisTemplate<String, Object> template = new RedisTemplate<>();
template.setConnectionFactory(connectionFactory);
template.setValueSerializer(jackson2JsonRedisSerializer());
//使用StringRedisSerializer来序列化和反序列化redis的key值
template.setKeySerializer(new StringRedisSerializer());
template.setHashKeySerializer(new StringRedisSerializer());
template.setHashValueSerializer(jackson2JsonRedisSerializer());
template.setValueSerializer(jackson2JsonRedisSerializer());
template.afterPropertiesSet();
return template;
}
/**
* json序列化
*
* @return
*/
@Bean
public RedisSerializer<Object> jackson2JsonRedisSerializer() {
//使用Jackson2JsonRedisSerializer来序列化和反序列化redis的value值
Jackson2JsonRedisSerializer serializer = new Jackson2JsonRedisSerializer(Object.class);
ObjectMapper mapper = new ObjectMapper();
mapper.setVisibility(PropertyAccessor.ALL, JsonAutoDetect.Visibility.ANY);
mapper.enableDefaultTyping(ObjectMapper.DefaultTyping.NON_FINAL);
serializer.setObjectMapper(mapper);
return serializer;
}
/**
* 配置缓存管理器
* 需要注意的是 你在RedisTemplate<String, Object>中的配置的key,value序列化方法并不会生效
* 需要在RedisCacheConfiguration中单独配置。
*
* @param redisConnectionFactory
* @return
*/
@Bean
public CacheManager cacheManager(RedisConnectionFactory redisConnectionFactory) {
// 生成一个默认配置,通过config对象即可对缓存进行自定义配置
RedisCacheConfiguration config = RedisCacheConfiguration.defaultCacheConfig();
// 设置缓存的默认过期时间,也是使用Duration设置 (此处为缓存永久)
config = config.entryTtl(Duration.ofDays(-1))
// 设置 key为string序列化
.serializeKeysWith(RedisSerializationContext.SerializationPair.fromSerializer(new StringRedisSerializer()))
// 设置value为json序列化
.serializeValuesWith(RedisSerializationContext.SerializationPair.fromSerializer(jackson2JsonRedisSerializer()))
// 不缓存空值
.disableCachingNullValues();
return RedisCacheManager.builder(redisConnectionFactory).cacheDefaults(config).build();
// 设置默认的cache组件;
}
}
redis 序列化
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转载自blog.csdn.net/weixin_44737877/article/details/103159411
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