SpringBoot2.X整合Spring-Cache缓存开发的实现

<!-- 引入Redis -->
<dependency>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-starter-data-redis</artifactId>
</dependency>

<!-- 引入SprinGCache -->
<dependency>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-starter-cache</artifactId>
</dependency>

spring.cache.type=redis

@Cacheable(value = {"cateGory"}, key = "#root.method.name")
@Override
public List<CategoryEntity> findCatelog1() {
  System.out.println("查询数据库---");
  return baseMapper.selectList(new QueryWrapper<CategoryEntity>().eq("parent_cid", 0));
}

spring.cache.redis.time-to-live=3600000

@EnableConfigurationProperties(CacheProperties.class)
@Configuration
@EnableCaching // 开启缓存
public class MyCacheConfig {

    
    @Bean
    public RedisCacheConfiguration redisCacheConfiguration(CacheProperties cacheProperties) {
        RedisCacheConfiguration config = RedisCacheConfiguration.defaultCacheConfig();

        config = config.serializeKeysWith(RedisSerializationContext.SerializationPair.fromSerializer(new StringRedisSerializer()));
        config = config.serializeValuesWith(RedisSerializationContext.SerializationPair.fromSerializer(new GenericJackson2jsonRedisSerializer()));

        // 将配置文件中的所有配置都生效
        CacheProperties.Redis redisProperties = cacheProperties.getRedis();
        if (redisProperties.getTimeToLive() != null) {
            config = config.entryTtl(redisProperties.getTimeToLive());
        }

        if (redisProperties.geTKEyPrefix() != null) {
            config = config.prefixKeysWith(redisProperties.getKeyPrefix());
        }

        if (!redisProperties.isCacheNullValues()) {
            config = config.disableCachingNullValues();
        }

        if (!redisProperties.isUseKeyPrefix()) {
            config = config.disableKeyPrefix();
        }
        return config;
    }

}

# 如果指定了前缀就用我们指定的前缀，如果没有就默认使用缓存的名字作为前缀
# spring.cache.redis.key-prefix=CACHE_ # 默认就使用分区名
spring.cache.redis.use-key-prefix=true
# 是否缓存空值。防止缓存穿透
spring.cache.redis.cache-null-values=true

// @CacheEvict(value = "category", key = "'findCatelog1'")// 删除具体key的缓存
@CacheEvict(value = "category", allEntries = true)// 指定删除某个分区下的所有数据
@Transactional
@Override
public void updateCascade(CategoryEntity category) {
  this.updateById(category);
  categoryBrandRelationService.updateCategory(category.getCatId(), category.getName());
}

@Caching(evict = {
  @CacheEvict(value = "category", key = "'findCatelog1'"),// 删除缓存
  @CacheEvict(value = "category", key = "'getCatalogJson'"),// 删除缓存
})
@Transactional
@Override
public void updateCascade(CategoryEntity category) {
  this.updateById(category);
  categoryBrandRelationService.updateCategory(category.getCatId(), category.getName());
}

@CachePut // 双写模式时使用

@Cacheable(value = {"category"}, key = "#root.method.name", sync = true)