添加依赖


    
    
     
      org.springframework.boot
     
     
      spring-boot-starter-redis

配置文件：

spring.cache.type=redis

缓存使用优先级问题

1.默认按照 spring boot 的加载顺序来实现

2.配置文件优先于默认

自定义缓存管理器

public class RedisCacheConfiguration extends CachingConfigurerSupport {	@Autowired	private RedisConnectionFactory connectionFactory;	/**	 * 缓存管理器	 * @return CacheManager	 */	@Bean	public CacheManager cacheManager() {		RedisCacheManagerBuilder builder = RedisCacheManagerBuilder.fromConnectionFactory(connectionFactory);		Set
    
      cacheNames = new HashSet
     
      () {
  {			add("codeNameCache");		}};		builder.initialCacheNames(cacheNames);		return builder.build();	}	/**	 * @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customKeyGenerator即可
      
	 * @return 自定义策略生成的key	 */	@Bean	public KeyGenerator customKeyGenerator() {		return (o, method, objects) -> {			StringBuilder sb = new StringBuilder();			sb.append(o.getClass().getName());			sb.append(method.getName());			for (Object obj : objects) {				sb.append(obj.toString());			}			return sb.toString();		};	}}