【已解决】redisCache注解失效，没写cacheConfig

环境配置

jdk11    springboot 2.6.13    

<dependency>
      <groupId>org.springframework.boot</groupId>
      <artifactId>spring-boot-starter-data-redis</artifactId>
      <version>3.2.0</version>
</dependency>

<dependency>
      <groupId>org.springframework.boot</groupId>
      <artifactId>spring-boot-starter-cache</artifactId>
      <version>3.2.0</version>
</dependency>

  redis:
    host: 192.168.2.129
    port: 6379
    username: default
    password: 'linux02'
    database: 1
#    默认使用lettuce
    lettuce:
      pool:
#        最大连接数，最大空闲数，最小空闲数
        max-active: 5
        max-idle: 2
        min-idle: 2
  #    缓存10min，允许缓存null值防止缓存穿透
  cache:
    type: redis
    redis:
      time-to-live: 600
      cache-null-values: true

代码

java 复制代码

  @Cacheable(cacheNames = BLOG_CACHE_PREFIX + "otherPassages", key = "#userId")
  @Override
  public List<PassageTitleVO> getOtherPassagesByUserId(Long userId) {
       ....
        ....
    return passageTitleVOS;
  }

解决

网上找了一些案例，有的不需要写cacheConfig，有些需要写，我之前就用过cacheable的注解，当时就是上面的配置，没写配置类也有效果，这次我最开始就没写，然后Cacheable注解就没效果了，最后写了个cacheConfig才解决。

java 复制代码

@Configuration
@EnableCaching
public class CacheConfig extends CachingConfigurerSupport {

  @Bean
  public RedisCacheManager cacheManager(RedisConnectionFactory redisConnectionFactory) {
    return RedisCacheManager.builder(redisConnectionFactory).build();
  }

}

然后又发现yml设置的过期时间没有生效，存到redis的是永不过期，又在 cacheConfig配置了过期时间，600s

java 复制代码

@Configuration
@EnableCaching
public class CacheConfig extends CachingConfigurerSupport {

  @Bean
  public RedisCacheManager cacheManager(RedisConnectionFactory redisConnectionFactory) {
    RedisCacheConfiguration redisCacheConfiguration = RedisCacheConfiguration.defaultCacheConfig()
        .entryTtl(Duration.ofSeconds(600));
    return RedisCacheManager.builder(redisConnectionFactory).cacheDefaults(redisCacheConfiguration)
        .build();
  }

}