Java Memcache基本应用

Memcache的介绍有很多，这里给出如何在Java中应用Memcache的基本方法

  1 安装Memcache服务器(windows)

下载windows版Memcache安装包，如memcached-1.2.6-win32-bin.zip，解压到指定位置，比如(D://memcache)，打开dos命令行，输入以下两个命令即可启动Memcache服务。

D:/memcache/memcached.exe -d  install 

D:/memcache/memcached.exe -d  start 

  2 下载Java版本的memcache客户端(以下列出常用的几种)。

 spymemcached ：

http://code.google.com/p/spymemcached/

 gwhalin / Memcached-Java-Client   

   https://github.com/gwhalin/Memcached-Java-Client/downloads

 Jcache

http://code.google.com/intl/zh-CN/appengine/docs/java/memcache/usingjcache.html

  3 下面给出两种方式调用Memcache

     

  gwhalin / Memcached-Java-Client调用方式如下：

  

  public class MemcacheManagerForGwhalin { // 构建缓存客户端 private static MemCachedClient cachedClient; // 单例模式实现客户端管理类 private static MemcacheManagerForGwhalin INSTANCE = new MemcacheManagerForGwhalin(); private MemcacheManagerForGwhalin() { cachedClient = new MemCachedClient(); //获取连接池实例 SockIOPool pool = SockIOPool.getInstance(); //设置缓存服务器地址，可以设置多个实现分布式缓存 pool.setServers(new String[]{"127.0.0.1:11211"}); //设置初始连接5 pool.setInitConn(5); //设置最小连接5 pool.setMinConn(5); //设置最大连接250 pool.setMaxConn(250); //设置每个连接最大空闲时间3个小时 pool.setMaxIdle(1000 * 60 * 60 * 3); pool.setMaintSleep(30); pool.setNagle(false); pool.setSocketTO(3000); pool.setSocketConnectTO(0); pool.initialize(); } /** * 获取缓存管理器唯一实例 * @return */ public static MemcacheManagerForGwhalin getInstance() { return INSTANCE; } @Override public void add(String key, Object value) { cachedClient.set(key, value); } @Override public void add(String key, Object value, int milliseconds) { cachedClient.set(key, value, milliseconds); } @Override public void remove(String key) { cachedClient.delete(key); } @Override public void remove(String key, int milliseconds) { cachedClient.delete(key, milliseconds, new Date()); } @Override public void update(String key, Object value, int milliseconds) { cachedClient.replace(key, value, milliseconds); } @Override public void update(String key, Object value) { cachedClient.replace(key, value); } @Override public Object get(String key) { return cachedClient.get(key); } }

Spy方式调用如下:

 public class MemcacheManagerForSpy implements IMemcacheManager { //缓存客户端 private MemcachedClient memcacheCient; //Manager管理对象，单例模式 private static MemcacheManagerForSpy INSTANCE = new MemcacheManagerForSpy(); private MemcacheManagerForSpy() { try { memcacheCient = new MemcachedClient(new InetSocketAddress("127.0.0.1",11211)); } catch (IOException e) { e.printStackTrace(); } } public static MemcacheManagerForSpy getInstance() { return INSTANCE; } @Override public void add(String key, Object value, int milliseconds) { memcacheCient.add(key, milliseconds, value); } @Override public void add(String key, Object value) { memcacheCient.add(key, 3600, value); } @Override public void remove(String key, int milliseconds) { memcacheCient.delete(key); } @Override public void remove(String key) { memcacheCient.delete(key); } @Override public void update(String key, Object value, int milliseconds) { memcacheCient.replace(key, milliseconds, value); } @Override public void update(String key, Object value) { memcacheCient.replace(key, 3600, value); } @Override public Object get(String key) { return memcacheCient.get(key); } }