java操作memcached入门教程demo代码

标签：memcached   cache   

原文：java操作memcached入门教程demo代码

源代码下载地址：http://www.zuidaima.com/share/1550463754996736.htm

参考地址：

http://www.open-open.com/lib/view/open1357831114183.html

http://tech.idv2.com/2008/07/10/memcached-001/

感谢 京-java牛-ID号1  感谢 锡-SuperPrivate-195 

在网上搜索了部分代码，一个很简单的Demo，将查询的结果集存入缓存。我也不是太懂，大家可以搜索下资料，不过加入MemCached后项目访问速度的确增加了

package com.dream.core.util;

import java.util.Date;

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

/**
 * @describe:MemoryUtil.java
 * 
 * @date 2013-9-30
 * @author yuanlin.su www.zuidaima.com
 * 参考地址：http://www.open-open.com/lib/view/open1357831114183.html
 * http://tech.idv2.com/2008/07/10/memcached-001/
 * 感谢  京-java牛-ID号1
 * 感谢 锡-SuperPrivate-195
 * 
 * 服务端和jar包免积分下载地址：http://download.csdn.net/detail/consuy/6341989
 */
public class MemoryUtil {
	private static MemCachedClient client = null;
	private final static String CACHE_ISOPEN_KEY = "CACHE_ISOPEN";

	/**
	 * 初始化MEMCACHE工具
	 */
	public synchronized static void init(String ipAddress) {
		if (client == null) {
			String[] servers = { ipAddress };
			Integer[] weights = { 1 };
			SockIOPool pool = SockIOPool.getInstance();
			pool.setServers(servers);
			pool.setWeights(weights);

			pool.setNagle(false);
			pool.setSocketTO(10000);
			pool.setSocketConnectTO(3000);

			pool.initialize();
			client = new MemCachedClient();
			set(CACHE_ISOPEN_KEY, 1);
		}
	}

	/**
	 * 设置值
	 * 
	 * @param key
	 * @param value
	 */
	public static void set(String key, Object value) {
		client.set(key, value);
	}

	/**
	 * 设置值同时添加有效期
	 * 
	 * @param key
	 * @param value
	 * @param minute 分钟
	 */
	public static void set(String key, Object value, int minute) {
		client.set(key, value, new Date(System.currentTimeMillis() + minute * 60 * 1000l));
	}

	/**
	 * 检查值是否存在
	 * 
	 * @param key
	 * @return
	 */
	public static boolean keyExists(String key) {
		return client.keyExists(key);
	}

	/**
	 * 删除内存数据项的值
	 * 
	 * @param key
	 */
	public static void delete(String key) {
		client.delete(key);
	}

	/**
	 * 清空所有的数据
	 */
	public static void clear() {
		client.flushAll();
	}

	/**
	 * 从内存中查询对象信息
	 * 
	 * @param key
	 * @return
	 */
	@SuppressWarnings("unchecked")
	public static <T> T get(String key) {
		return (T) client.get(key);
	}

	/**
	 * 判断MEMCACHE是否已经开启
	 * 
	 * @return
	 */
	public static boolean cacheIsOpen() {
		if (keyExists(CACHE_ISOPEN_KEY)) {
			return true;
		} else {
			return false;
		}
	}
	
	
	//demo
	/*
	public ModelAndView publishMood(@ModelAttribute("form") UserInfo user, HttpServletRequest request) {
		//TODO
		Object<T> obj = MemoryUtil.get(key);
		if (obj == null) {
			Object<T> obj = service.find(Entity.class);
			MemoryUtil.set(key, obj);
		}
		reutrn null;
	}
	*/
}

java操作memcached入门教程demo代码

标签：memcached   cache   

原文地址：http://blog.csdn.net/springmvc_springdata/article/details/45840825