Java的进程内缓存框架:EhCache (转)

<?xml version="1.0" encoding="UTF-8"?>
<ehcache updateCheck="false" dynamicConfig="false">
    <diskStore path="java.io.tmpdir"/>
    <cache name="staticResourceCache"
           maxElementsInMemory="1000"
           timeToIdleSeconds="7200"
           timeToLiveSeconds="7200">
    </cache>
</ehcache>

属性解释：

缓存的创建，采用自动的方式

CacheManager singletonManager = CacheManager.create();

singletonManager.addCache("testCache");

Cache test = singletonManager.getCache("testCache");

或者直接创建Cache

CacheManager singletonManager = CacheManager.create();

Cache memoryOnlyCache = new Cache("testCache", 5000, false, false, 5, 2);

manager.addCache(memoryOnlyCache);

Cache test = singletonManager.getCache("testCache");

删除cache

CacheManager singletonManager = CacheManager.create();

singletonManager.removeCache("sampleCache1");

在使用ehcache后，需要关闭

CacheManager.getInstance().shutdown()

caches 的使用

Cache cache = manager.getCache("sampleCache1");

执行crud操作

Cache.get(Object key)，
Cache.put(new Element(Object key, Object value))，
Cache.remove(Object key)。  

Cache cache = manager.getCache("sampleCache1");

Element element = new Element("key1", "value1");

cache.put(element);

//update

Cache cache = manager.getCache("sampleCache1");

cache.put(new Element("key1", "value1");

//This updates the entry for "key1"

cache.put(new Element("key1", "value2");

//get Serializable

Cache cache = manager.getCache("sampleCache1");

Element element = cache.get("key1");

Serializable value = element.getValue();

//get non serializable

Cache cache = manager.getCache("sampleCache1");

Element element = cache.get("key1");

Object value = element.getObjectValue();

//remove

Cache cache = manager.getCache("sampleCache1");
Element element = new Element("key1", "value1")
cache.remove("key1");