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29 lines (25 loc) · 775 Bytes
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package com;
import com.google.common.cache.CacheBuilder;
import com.google.common.cache.CacheLoader;
import com.google.common.cache.LoadingCache;
public class App {
public static void main(String[] args) {
// TODO Auto-generated method stub
CacheLoader<String, String> loader;
loader=new CacheLoader<String, String>(){
@Override
public String load(String key) throws Exception {
//
return key.toUpperCase();
}
};
//
LoadingCache<String,String> cache;
cache= CacheBuilder.newBuilder().build(loader);
//
System.out.println("缓存的大小 ： "+cache.size());
//
System.out.println("取出hello的value "+cache.getUnchecked("hello"));
System.out.println("缓存的大小 ： "+cache.size());
}
}