springboot 自定义整合caffeine 本地缓存

1、自定义缓存配置类

@Data
@ConfigurationProperties(prefix = "page.cache")
public class PageCacheProperties {

    private CaffeineConfigProperties caffeine = new CaffeineConfigProperties(); //本地缓存配置
    private PageCacheAsyncExecutorConfig pool = new PageCacheAsyncExecutorConfig();

    private Integer checkJimDbCacheSecond = 200;   //jimdb缓存失效的最大时间 单位：秒
    private Integer flushIntervalSecond = 1;   // 如果缓存失效 间隔多少秒不重复刷新缓存  单位：秒
    private Integer jimDbExpireSecond = 300;   //jimDB缓存有效期 单位：秒

    @Data
    public class CaffeineConfigProperties {
        private Integer expireAfterWrite = 60; //单位秒  写入间隔多久淘汰
        private Integer maximumSize = 500;   //缓存 key 的最大个数
    }

    @Data
    public class PageCacheAsyncExecutorConfig {
        private Integer corePoolSize = 10; //核心线程数
        private Integer maxPoolSize = 20;   //最大线程数
        private Integer queueCapacity = 100;   //线程池 队列容量
    }

}

2、自定义缓存配置 yml

#页面缓存配置
page:
  cache:
    caffeine:
      expireAfterWrite: 60  #写入间隔多久淘汰 单位：秒
      maximumSize: 1000     #缓存 key 的最大个数
    checkJimDbCacheSecond: 240  #判断jimdb缓存失效的最大时间 单位：秒
    flushIntervalSecond: 1    #如果缓存失效 间隔多少秒不重复刷新缓存  单位：秒
    jimDbExpireSecond: 300   #页面缓存到jimdb的有效时间

3、加载缓存配置文件 并定义缓存管理器

@Slf4j
@Async
@Configuration
@EnableConfigurationProperties(PageCacheProperties.class)
public class PageCacheConfig implements AsyncConfigurer {

    @Autowired
    private PageCacheProperties pageCacheProperties;

    @Override
    @Bean("pageCacheTaskExecutor")
    public Executor getAsyncExecutor() {
        ThreadPoolTaskExecutor executor = new ThreadPoolTaskExecutor();
        executor.setCorePoolSize(pageCacheProperties.getPool().getCorePoolSize()); // 设置核心线程数
        executor.setMaxPoolSize(pageCacheProperties.getPool().getMaxPoolSize()); // 设置最大线程数
        executor.setQueueCapacity(pageCacheProperties.getPool().getQueueCapacity()); // 设置队列容量
        executor.setThreadNamePrefix("pageCacheTaskExecutor-"); // 设置线程名称前缀
        executor.initialize();
        return executor;
    }
    @Bean
    public CacheManager cacheManager(PageCacheProperties pageCacheProperties) {
        CaffeineCacheManager cacheManager = new CaffeineCacheManager();
        cacheManager.setCaffeine(caffeineCacheBuilder(pageCacheProperties));
        return cacheManager;
    }

    private Caffeine<Object, Object> caffeineCacheBuilder(PageCacheProperties pageCacheProperties) {
        return Caffeine.newBuilder()
                .expireAfterWrite(pageCacheProperties.getCaffeine().getExpireAfterWrite(), TimeUnit.SECONDS)
                .maximumSize(pageCacheProperties.getCaffeine().getMaximumSize());
    }

    /**
     * 获取页面缓存的有效时间
     *
     * @return
     */
    public Integer getJimDbExpireSecond() {
        return pageCacheProperties.getJimDbExpireSecond();
    }

    /**
     * 获取 判断页面失效的 缓存时间
     *
     * @return
     */
    public Integer getCheckJimDbCacheSecond() {
        return pageCacheProperties.getCheckJimDbCacheSecond();
    }

    /**
     * 获取缓存失效 多少秒 不重复刷新缓存
     * @return
     */
    public Integer getFlushIntervalSecond(){
        return pageCacheProperties.getFlushIntervalSecond();
    }
}

4、本地缓存工具类

@Component
public class LocalCacheUtil {
    @Autowired
    private CacheManager cacheManager;

    /**
     * 获取缓存数据
     *
     * @param key
     * @return
     */
    public String getCacheData(String key) {
        Cache cache = cacheManager.getCache(key);
        return cache.get(key, String.class);
    }

    /**
     * 设置缓存数据
     *
     * @param key
     * @param value
     */
    public void setCacheData(String key, String value) {
        Cache cache = cacheManager.getCache(key);
        cache.put(key, value);
    }
}

5、异步执行

    /**
     * 异步查询pc缓存
     *
     * @param getPageAllDataParam
     */
    @Async("pageCacheTaskExecutor")
    public void asyncCheckAndUpdatePcCache(GetPageAllDataParam getPageAllDataParam) {

    }