1.LoadingCache<String,List<~>> cache= CashBuilder.newBuilder().expireAfterWrite(1,TimeUnit.DAYS).build(new CacheLoader<String,List<~>>(){ide
@overrideui
pubilc List<~> load(String key) throws Exception{get
if(key.equals(k)){it
return dbaccess;}io
}List
});im
List<~> value ——》return cache.get(key);db