本地缓存笔记

import com.google.common.cache.Cache;
import com.google.common.cache.CacheBuilder;

import java.util.concurrent.TimeUnit;

//缓存24小时
public static Cache<String, EventTimeline> cacheMap = CacheBuilder.newBuilder().expireAfterWrite(24, TimeUnit.HOURS).build();

List<EventTimeline> list = new ArrayList<>(cacheMap.asMap().values());

cacheMap.invalidate(id.toString().trim());//删除缓存中的数据

list.subList(offset, Math.min(offset+=limit, result.size()))

 

Cache<String, String> cache = CacheBuilder.newBuilder().expireAfterAccess(1, TimeUnit.HOURS).build();

String md5 = "14422";

String md5_cache = cache.get(md5, new Callable<String>() {
     @Override
     public String call() throws Exception {
        return md5;
     }
 });

// String md5_cache = cache.getIfPresent(md5);

 

转载于:https://www.cnblogs.com/xiaolei2017/p/7249854.html