spyMemcached与JMemcached

jMemcached是Memcached分布式缓存的java实现

SpyMemcached是Memcached的java客户端

1.启动jMemcached服务

int maxItems = 1024;

long maxBytes = 1024 * 2048;

long ceilingSize = 2048;

MemCacheDaemon daemon = new MemCacheDaemon();

daemon.setAddr(new InetSocketAddress("localhost", 11211));

LRUCacheStorageDelegate cacheStorage = new LRUCacheStorageDelegate(

maxItems, maxBytes, ceilingSize);

daemon.setCache(new Cache(cacheStorage));

daemon.setBinary(false);

daemon.start();

2.SpyMemcached操作jMemcached的方法

//客户端连接上缓存服务器

MemcachedClient c = new MemcachedClient(AddrUtil.getAddresses("localhost:11211"));

/*将key值,set到memcached中，过期时间(秒)*/  

public Future<Boolean> set(String key, int expiredTime, Object value) {

return c.set(key, expiredTime, value);

}

/*根据key值，过获取memcached中的值*/   

public <T> T get(String key) {

try {

return (T) c.get(key);

} catch (RuntimeException e) {

System.out.println("获取缓存出错");

System.out.println(e);

return null;

}

}

/*根据key值，删除memcached中的值*/   

public Future<Boolean> delete(String key) {

return c.delete(key);

}

/*根据key值，异步获取memcached中的值*/  

public <T> T asyncGet(String key) {

T t = null;

Future<Object> f = c.asyncGet(key);

try {

t = (T) f.get(5, TimeUnit.SECONDS);

} catch (Exception e) {

f.cancel(true);

}

return t;

}