地产网站互动设计,沈阳免费seo关键词优化排名,做侵权网站用哪里的服务器稳,免费营销型网站建设SpringBoot之自定义Redis缓存key的生成策略配置 文章目录 SpringBoot之自定义Redis缓存key的生成策略配置1. SpringBoot版本2. Redis缓存配置类 自定义缓存key生成策略#xff1b;key与value的序列化#xff1b;key过期配置管理器 1. SpringBoot版本 parentgroup…SpringBoot之自定义Redis缓存key的生成策略配置 文章目录 SpringBoot之自定义Redis缓存key的生成策略配置1. SpringBoot版本2. Redis缓存配置类 自定义缓存key生成策略key与value的序列化key过期配置管理器 1. SpringBoot版本 parentgroupIdorg.springframework.boot/groupIdartifactIdspring-boot-starter-parent/artifactIdversion2.3.5.RELEASE/version/parent2. Redis缓存配置类
RedisConfig.java配置类如下
package com.yuan.webframework.config;import com.fasterxml.jackson.annotation.JsonAutoDetect.Visibility;
import com.fasterxml.jackson.annotation.PropertyAccessor;
import com.fasterxml.jackson.databind.ObjectMapper;
import com.fasterxml.jackson.databind.ObjectMapper.DefaultTyping;
import com.yuan.utils.UUIDGenerator;
import org.springframework.cache.CacheManager;
import org.springframework.cache.annotation.CachingConfigurerSupport;
import org.springframework.cache.annotation.EnableCaching;
import org.springframework.cache.interceptor.KeyGenerator;
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.cache.RedisCacheWriter;
import org.springframework.data.redis.connection.lettuce.LettuceConnectionFactory;
import org.springframework.data.redis.core.RedisTemplate;
import org.springframework.data.redis.serializer.*;import javax.annotation.Resource;
import java.time.Duration;import static java.util.Collections.singletonMap;/**** Redis缓存配置类*/
Configuration
EnableCaching // 开启缓存支持
public class RedisConfig extends CachingConfigurerSupport {Resourceprivate LettuceConnectionFactory lettuceConnectionFactory;/*** description 自定义的缓存key的生成策略 若想使用这个key* 只需要讲注解上keyGenerator的值设置为keyGenerator即可/br* return 自定义策略生成的key*/BeanOverridepublic KeyGenerator keyGenerator() {return (target, method, params) - {StringBuilder sb new StringBuilder();sb.append(target.getClass().getName());return my_ sb UUIDGenerator.getUUID();};}/*** RedisTemplate配置key序列化、value序列化*/Beanpublic RedisTemplateString, Object redisTemplate(LettuceConnectionFactory lettuceConnectionFactory) {// 设置序列化Jackson2JsonRedisSerializerObject jackson2JsonRedisSerializer new Jackson2JsonRedisSerializerObject(Object.class);ObjectMapper om new ObjectMapper();om.setVisibility(PropertyAccessor.ALL, Visibility.ANY);om.enableDefaultTyping(DefaultTyping.NON_FINAL);jackson2JsonRedisSerializer.setObjectMapper(om);// 配置redisTemplateRedisTemplateString, Object redisTemplate new RedisTemplateString, Object();redisTemplate.setConnectionFactory(lettuceConnectionFactory);RedisSerializer? stringSerializer new StringRedisSerializer();redisTemplate.setKeySerializer(stringSerializer);// key序列化redisTemplate.setValueSerializer(jackson2JsonRedisSerializer);// value序列化redisTemplate.setHashKeySerializer(stringSerializer);// Hash key序列化redisTemplate.setHashValueSerializer(jackson2JsonRedisSerializer);// Hash value序列化redisTemplate.afterPropertiesSet();return redisTemplate;}/*** Redis缓存key过期配置管理器,后续有需要再放开*/Beanpublic CacheManager cacheManager(LettuceConnectionFactory factory) {// 配置序列化RedisCacheConfiguration config RedisCacheConfiguration.defaultCacheConfig().entryTtl(Duration.ofHours(1));RedisCacheConfiguration redisCacheConfiguration config.serializeKeysWith(RedisSerializationContext.SerializationPair.fromSerializer(new StringRedisSerializer())).serializeValuesWith(RedisSerializationContext.SerializationPair.fromSerializer(new GenericJackson2JsonRedisSerializer()));// 以锁写入的方式创建RedisCacheWriter对象//RedisCacheWriter writer RedisCacheWriter.lockingRedisCacheWriter(factory);// 创建默认缓存配置对象// 默认配置设置缓存有效期 1小时//RedisCacheConfiguration defaultCacheConfig RedisCacheConfiguration.defaultCacheConfig().entryTtl(Duration.ofHours(1));// 配置dictAll的超时时间为120sRedisCacheManager cacheManager RedisCacheManager.builder(RedisCacheWriter.lockingRedisCacheWriter(factory)).cacheDefaults(redisCacheConfiguration).withInitialCacheConfigurations(singletonMap(dictAll, RedisCacheConfiguration.defaultCacheConfig().entryTtl(Duration.ofMinutes(120)).disableCachingNullValues())).transactionAware().build();return cacheManager;}}
