memcached:

fish3129

　　memcached的使用
　　http://sacharya.com/using-memcached-with-java/
　　参看这里，然后将两个jar包下载下来
　　java_memcached-release_2.5.0中有比较详细文档，看起来也还比较清晰易懂
　　例如下面这个，我也仅是目前简单用了下这个，没有使用太多别东西

import com.danga.MemCached.MemCachedClient;
import com.danga.MemCached.SockIOPool;

An example of initializing using defaults:

static {
　　String[] serverlist = { "server1.com:port", "server2.com:port" };
　　SockIOPool pool = SockIOPool.getInstance();
　　pool.setServers(serverlist);
　　pool.initialize();
}
　　
Then we can create the client object.

To create cache client object:

MemCachedClient mc = new MemCachedClient();
To store an object:

MemCachedClient mc = new MemCachedClient();
String key = "cacheKey1";
Object value = SomeClass.getObject(); mc.set(key, value);
To delete a cache entry:

MemCachedClient mc = new MemCachedClient();
String key = "cacheKey1"; mc.delete(key);
To retrieve an object from the cache:

MemCachedClient mc = new MemCachedClient();
String key = "key"; Object value = mc.get(key);
To retrieve an multiple objects from the cache

MemCachedClient mc = new MemCachedClient();
String[] keys = { "key", "key1", "key2" };
Map<Object> values = mc.getMulti(keys);
To flush all items in server(s)

MemCachedClient mc = new MemCachedClient();
mc.flushAll();