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  • yb课堂实战之轮播图接口引入本地缓存 《二十一》

    轮播图接口引入缓存

    CacheKeyManager.java

    package net.ybclass.online_ybclass.config;
    
    /**
     * 缓存key管理类
     */
    public class CacheKeyManager {
        /**
         * 首页轮播图,缓存key
         */
        public static String INDEX_BANNER_LIST_KEY="index:banner:list";
    }

    VideoServiceImpl.java

    BaseCache.java

    package net.ybclass.online_ybclass.utils;
    
    import com.google.common.cache.Cache;
    import com.google.common.cache.CacheBuilder;
    import org.springframework.stereotype.Component;
    
    import java.util.concurrent.TimeUnit;
    
    @Component
    public class BaseCache {
        private Cache<String, Object> tenMinteCache= CacheBuilder.newBuilder()
                .initialCapacity(10) //设置缓存初始大小,应该合理设置,后期会扩容
                .maximumSize(100) //最大值
                .concurrencyLevel(5) //并发数
                .expireAfterWrite(600, TimeUnit.SECONDS) //缓存过期时间,写入后10分钟过期
                .recordStats() //统计缓存命中率
                .build();
    
        public Cache<String, Object> getTenMinteCache() {
            return tenMinteCache;
        }
    
        public void setTenMinteCache(Cache<String, Object> tenMinteCache) {
            this.tenMinteCache = tenMinteCache;
        }
    }

    演示

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  • 原文地址:https://www.cnblogs.com/chenyanbin/p/13331245.html
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