利用LinkedHashMap兑现LRU缓存策略

利用LinkedHashMap实现LRU缓存策略

利用LinkedHashMap实现移除最近最少使用的缓存策略，只需要重载removeEldestEntry(Entry<Object, Object> eldest)方法即可。?

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public class LruCache implements Cache {        private final Map<Object, Object> store;    public LruCache(URL url) {        final int max = url.getParameter("cache.size", 1000);        this.store = new LinkedHashMap<Object, Object>() {            private static final long serialVersionUID = -3834209229668463829L;            @Override            protected boolean removeEldestEntry(Entry<Object, Object> eldest) {                return size() > max;            }        };    }    public void put(Object key, Object value) {        synchronized (store) {            store.put(key, value);        }    }    public Object get(Object key) {        synchronized (store) {            return store.get(key);        }    }}