Memcached与Spring集成的方式（待实践）

主要是基于这几种方式http://www.cnblogs.com/EasonJim/p/7624822.html去实现与Spring集成，而个人建议使用Xmemcached去集成好一些，因为现在官方还在更新，具体参考：https://github.com/killme2008/xmemcached/wiki/Xmemcached%20%E4%B8%AD%E6%96%87%E7%94%A8%E6%88%B7%E6%8C%87%E5%8D%97

以下方式据说第一种会报错，没测试过。

既然已经使用Spring做集成，那么依赖肯定要使用Maven。

Memcached已经过时了，如果是新项目就不应该侧重选择它，转投Redis。

Memcached Client for Java 

<!-- https://mvnrepository.com/artifact/com.whalin/Memcached-Java-Client -->
<dependency>
    <groupId>com.whalin</groupId>
    <artifactId>Memcached-Java-Client</artifactId>
    <version>3.0.2</version>
</dependency>

memcached.properties配置文件：配置服务器地址，连接数，超时时间等

#######################Memcached配置#######################
#服务器地址
memcached.server1=127.0.0.1
memcached.port1=11211
#memcached.server=127.0.0.1:11211
#初始化时对每个服务器建立的连接数目
memcached.initConn=20
#每个服务器建立最小的连接数
memcached.minConn=10
#每个服务器建立最大的连接数
memcached.maxConn=50
#自查线程周期进行工作，其每次休眠时间
memcached.maintSleep=3000
#Socket的参数，如果是true在写数据时不缓冲，立即发送出去
memcached.nagle=false
#Socket阻塞读取数据的超时时间
memcached.socketTO=3000  

##pool.setServers(servers);
##pool.setWeights(weights);
##pool.setHashingAlg(SockIOPool.CONSISTENT_HASH);
##pool.setInitConn(5);
##pool.setMinConn(5);
##pool.setMaxConn(250);
##pool.setMaxIdle(1000 * 60 * 60 * 6);
##pool.setMaintSleep(30);
##pool.setNagle(false);
##pool.setSocketTO(3000);
##pool.setSocketConnectTO(0);  

配置Bean

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:mvc="http://www.springframework.org/schema/mvc"
    xmlns:context="http://www.springframework.org/schema/context"
    xmlns:tx="http://www.springframework.org/schema/tx" xmlns:task="http://www.springframework.org/schema/task"
    xmlns:aop="http://www.springframework.org/schema/aop"
    xsi:schemaLocation="
        http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc-3.1.xsd
        http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.1.xsd
        http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-3.1.xsd
        http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-3.1.xsd
        http://www.springframework.org/schema/task http://www.springframework.org/schema/task/spring-task-3.1.xsd
        http://www.springframework.org/schema/aop
        http://www.springframework.org/schema/aop/spring-aop-3.0.xsd ">
    <!-- properties config   -->
    <bean class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer">
      <property name="order" value="1"/>
      <property name="ignoreUnresolvablePlaceholders" value="true"/>
      <property name="locations">
        <list>
            <!--<value>classpath:/com/springmvc/config/memcached.properties</value>-->
            <value>/WEB-INF/config/memcached.properties</value>
        </list>
      </property>
    </bean>
    <!-- Memcached配置 -->
    <bean id="memcachedPool" class="com.danga.MemCached.SockIOPool" factory-method="getInstance" init-method="initialize" destroy-method="shutDown">
        <property name="servers">
        　　 <!-- ${memcached.server} -->
            <list>
                <value>${memcached.server1}:${memcached.port1}</value>
            </list>
        </property>
        <property name="initConn">
            <value>${memcached.initConn}</value>
        </property>
        <property name="minConn">
            <value>${memcached.minConn}</value>
        </property>
        <property name="maxConn">
            <value>${memcached.maxConn}</value>
        </property>
        <property name="maintSleep">
            <value>${memcached.maintSleep}</value>
        </property>
        <property name="nagle">
            <value>${memcached.nagle}</value>
        </property>
        <property name="socketTO">
            <value>${memcached.socketTO}</value>
        </property>
    </bean>
</beans>

将app-context-memcached.xml配置到app-context.xml中

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:mvc="http://www.springframework.org/schema/mvc"
    xmlns:context="http://www.springframework.org/schema/context"
    xmlns:tx="http://www.springframework.org/schema/tx" xmlns:task="http://www.springframework.org/schema/task"
    xmlns:aop="http://www.springframework.org/schema/aop"
    xsi:schemaLocation="
        http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc-3.1.xsd
        http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.1.xsd
        http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-3.1.xsd
        http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-3.1.xsd
        http://www.springframework.org/schema/task http://www.springframework.org/schema/task/spring-task-3.1.xsd
        http://www.springframework.org/schema/aop
        http://www.springframework.org/schema/aop/spring-aop-3.0.xsd ">
    <import resource="app-context-memcached.xml" /><!--memcached 缓存配置 -->
    <!-- <import resource="app-context-xmemcached.xml" /> -->
    <!-- <import resource="app-context-spymemcached.xml" />  -->
    <!-- @Component and @Resource -->
    <bean class="org.springframework.context.annotation.CommonAnnotationBeanPostProcessor" />
    <!-- 对com包中的所有类进行扫描，以完成Bean创建和自动依赖注入的功能 -->
    <context:component-scan base-package="com.springmvc.imooc" />
    <!-- 定时器 -->
    <!-- <task:annotation-driven /> -->
    <!-- mvc -->
    <mvc:annotation-driven />
    <!-- Aspect -->
    <!-- <aop:aspectj-autoproxy /> -->
</beans>

Memcached工具类：

import java.io.PrintWriter;
import java.io.StringWriter;
import java.util.Date;

import com.danga.MemCached.MemCachedClient;

public final class MemcachedUtils {
    /**
     * cachedClient.
     */
    private static MemCachedClient cachedClient;
    static {
        if (cachedClient == null) {
            cachedClient = new MemCachedClient("memcachedPool");
        }
    }
    /**
     * 构造函数.
     */
    private MemcachedUtils() {
    }
    /**
     * 向缓存添加新的键值对。如果键已经存在，则之前的值将被替换.
     * @param key 键
     * @param value 值
     * @return boolean
     */
    public static boolean set(String key, Object value) {
        return setExp(key, value, null);
    }
    /**
     * 向缓存添加新的键值对。如果键已经存在，则之前的值将被替换.
     * @param key 键
     * @param value 值
     * @param expire 过期时间 New Date(1000*10)：十秒后过期
     * @return boolean
     */
    public static boolean set(String key, Object value, Date expire) {
        return setExp(key, value, expire);
    }
    /**
     * 向缓存添加新的键值对。如果键已经存在，则之前的值将被替换.
     * @param key 键
     * @param value 值
     * @param expire 过期时间 New Date(1000*10)：十秒后过期
     * @return boolean
     */
    private static boolean setExp(String key, Object value, Date expire) {
        boolean flag = false;
        try {
            flag = cachedClient.set(key, value, expire);
        } catch (Exception e) {
            MemcachedLog.writeLog("Memcached set方法报错，key值：" + key + "\r\n" + exceptionWrite(e));
        }
        return flag;
    }
    /**
     * 仅当缓存中不存在键时，add 命令才会向缓存中添加一个键值对.
     * @param key 键
     * @param value 值
     * @return boolean
     */
    public static boolean add(String key, Object value) {
        return addExp(key, value, null);
    }
    /**
     * 仅当缓存中不存在键时，add 命令才会向缓存中添加一个键值对.
     * @param key 键
     * @param value 值
     * @param expire 过期时间 New Date(1000*10)：十秒后过期
     * @return boolean
     */
    public static boolean add(String key, Object value, Date expire) {
        return addExp(key, value, expire);
    }
    /**
     * 仅当缓存中不存在键时，add 命令才会向缓存中添加一个键值对.
     * @param key 键
     * @param value 值
     * @param expire 过期时间 New Date(1000*10)：十秒后过期
     * @return boolean
     */
    private static boolean addExp(String key, Object value, Date expire) {
        boolean flag = false;
        try {
            flag = cachedClient.add(key, value, expire);
        } catch (Exception e) {
            MemcachedLog.writeLog("Memcached add方法报错，key值：" + key + "\r\n" + exceptionWrite(e));
        }
        return flag;
    }
    /**
     * 仅当键已经存在时，replace 命令才会替换缓存中的键.
     * @param key 键
     * @param value 值
     * @return boolean
     */
    public static boolean replace(String key, Object value) {
        return replaceExp(key, value, null);
    }
    /**
     * 仅当键已经存在时，replace 命令才会替换缓存中的键.
     * @param key 键
     * @param value 值
     * @param expire 过期时间 New Date(1000*10)：十秒后过期
     * @return boolean
     */
    public static boolean replace(String key, Object value, Date expire) {
        return replaceExp(key, value, expire);
    }
    /**
     * 仅当键已经存在时，replace 命令才会替换缓存中的键.
     * @param key 键
     * @param value 值
     * @param expire 过期时间 New Date(1000*10)：十秒后过期
     * @return boolean
     */
    private static boolean replaceExp(String key, Object value, Date expire) {
        boolean flag = false;
        try {
            flag = cachedClient.replace(key, value, expire);
        } catch (Exception e) {
            MemcachedLog.writeLog("Memcached replace方法报错，key值：" + key + "\r\n" + exceptionWrite(e));
        }
        return flag;
    }
    /**
     * get 命令用于检索与之前添加的键值对相关的值.
     * @param key 键
     * @return boolean
     */
    public static Object get(String key) {
        Object obj = null;
        try {
            obj = cachedClient.get(key);
        } catch (Exception e) {
            MemcachedLog.writeLog("Memcached get方法报错，key值：" + key + "\r\n" + exceptionWrite(e));
        }
        return obj;
    }
    /**
     * 删除 memcached 中的任何现有值.
     * @param key 键
     * @return boolean
     */
    public static boolean delete(String key) {
        return deleteExp(key, null);
    }
    /**
     * 删除 memcached 中的任何现有值.
     * @param key 键
     * @param expire 过期时间 New Date(1000*10)：十秒后过期
     * @return boolean
     */
    public static boolean delete(String key, Date expire) {
        return deleteExp(key, expire);
    }
    /**
     * 删除 memcached 中的任何现有值.
     * @param key 键
     * @param expire 过期时间 New Date(1000*10)：十秒后过期
     * @return boolean
     */
    @SuppressWarnings("deprecation")
    private static boolean deleteExp(String key, Date expire) {
        boolean flag = false;
        try {
            flag = cachedClient.delete(key, expire);
        } catch (Exception e) {
            MemcachedLog.writeLog("Memcached delete方法报错，key值：" + key + "\r\n" + exceptionWrite(e));
        }
        return flag;
    }
    /**
     * 清理缓存中的所有键/值对.
     * @return boolean
     */
    public static boolean flashAll() {
        boolean flag = false;
        try {
            flag = cachedClient.flushAll();
        } catch (Exception e) {
            MemcachedLog.writeLog("Memcached flashAll方法报错\r\n" + exceptionWrite(e));
        }
        return flag;
    }
    /**
     * 返回异常栈信息，String类型.
     * @param e Exception
     * @return boolean
     */
    private static String exceptionWrite(Exception e) {
        StringWriter sw = new StringWriter();
        PrintWriter pw = new PrintWriter(sw);
        e.printStackTrace(pw);
        pw.flush();
        return sw.toString();
    }
}

测试：

System.out.println(MemcachedUtils.set("aa", "bb", new Date(1000 * 60)));
Object obj = MemcachedUtils.get("aa");
System.out.println("***************************");
System.out.println(obj.toString());  

SpyMemcached 

<!-- https://mvnrepository.com/artifact/net.spy/spymemcached -->
<dependency>
    <groupId>net.spy</groupId>
    <artifactId>spymemcached</artifactId>
    <version>2.12.3</version>
</dependency>

spymemcached.properties配置文件：

#连接池大小即客户端个数
memcached.connectionPoolSize=1
memcached.failureMode=true
#server1
memcached.servers=127.0.0.1:11211
memcached.protocol=BINARY
memcached.opTimeout=1000
memcached.timeoutExceptionThreshold=1998
memcached.locatorType=CONSISTENT
memcached.failureMode=Redistribute
memcached.useNagleAlgorithm=false  

app-context-spymemcached.xml配置bean:

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:mvc="http://www.springframework.org/schema/mvc"
    xmlns:context="http://www.springframework.org/schema/context"
    xmlns:tx="http://www.springframework.org/schema/tx" xmlns:task="http://www.springframework.org/schema/task"
    xmlns:aop="http://www.springframework.org/schema/aop"
    xsi:schemaLocation="
        http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc-3.1.xsd
        http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.1.xsd
        http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-3.1.xsd
        http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-3.1.xsd
        http://www.springframework.org/schema/task http://www.springframework.org/schema/task/spring-task-3.1.xsd
        http://www.springframework.org/schema/aop
        http://www.springframework.org/schema/aop/spring-aop-3.0.xsd ">
    <!-- properties config   -->
    <bean class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer">
      <property name="order" value="1"/>
      <property name="ignoreUnresolvablePlaceholders" value="true"/>
      <property name="locations">
        <list>
            <value>classpath:/com/springmvc/config/spymemcached.properties</value>
        </list>
      </property>
    </bean>
    <!-- Memcached配置 -->
     <!--
        枚举类型要想注入到类中，一定要先使用org.springframework.beans.factory.config.FieldRetrievingFactoryBean类将枚举类型进行转换
        将DefaultHashAlgorithm.KETAMA_HASH转换为KETAMA_HASH这个bean，
        然后在要注入的bean中使用<property name="hashAlg" ref="KETAMA_HASH" />引用即可。
     -->
    <bean id="KETAMA_HASH" class="org.springframework.beans.factory.config.FieldRetrievingFactoryBean">
        <property name="staticField" value="net.spy.memcached.DefaultHashAlgorithm.KETAMA_HASH" />
    </bean>

    <bean id="memcachedClient" class="net.spy.memcached.spring.MemcachedClientFactoryBean">
        <!-- 一个字符串，包括由空格或逗号分隔的主机或IP地址与端口号 -->
        <property name="servers" value="${memcached.servers}" />
        <!-- 指定要使用的协议(BINARY,TEXT),默认是TEXT -->
        <property name="protocol" value="${memcached.protocol}" />
        <!-- 设置默认的转码器(默认以net.spy.memcached.transcoders.SerializingTranscoder) -->
        <property name="transcoder">
            <bean class="net.spy.memcached.transcoders.SerializingTranscoder">
                <property name="compressionThreshold" value="1024" />
            </bean>
        </property>
        <!-- 以毫秒为单位设置默认的操作超时时间 -->
        <property name="opTimeout" value="${memcached.opTimeout}" />
        <property name="timeoutExceptionThreshold" value="${memcached.timeoutExceptionThreshold}" />
        <!-- 设置哈希算法 -->
        <property name="hashAlg" ref="KETAMA_HASH" />
        <!-- 设置定位器类型(ARRAY_MOD,CONSISTENT),默认是ARRAY_MOD -->
        <property name="locatorType" value="${memcached.locatorType}" />
        <!-- 设置故障模式(取消，重新分配，重试)，默认是重新分配 -->
        <property name="failureMode" value="${memcached.failureMode}" />
        <!-- 想使用Nagle算法，设置为true -->
        <property name="useNagleAlgorithm" value="${memcached.useNagleAlgorithm}" />
    </bean>
    <bean id="memcachedManager" class="com.springmvc.imooc.util.SpyMemcachedManager">
        <property name="memcachedClient" ref="memcachedClient" />
    </bean>
</beans>

SpyMemcachedManager工具类：

import java.io.IOException;
import java.io.OutputStream;
import java.net.SocketAddress;
import java.util.Collection;
import java.util.Iterator;
import java.util.Map;
import java.util.Set;
import java.util.concurrent.Future;

import net.spy.memcached.ConnectionObserver;
import net.spy.memcached.MemcachedClient;
import net.spy.memcached.transcoders.Transcoder;

public class SpyMemcachedManager {
    /**
     * memcached客户单实例.
     */
    private MemcachedClient memcachedClient;
    /**
     *
     * TODO 添加方法注释.
     *
     * @param obs obs
     */
    public void addObserver(ConnectionObserver obs) {
        memcachedClient.addObserver(obs);
    }
    /**
     *
     * TODO 添加方法注释.
     *
     * @param obs obs
     */
    public void removeObserver(ConnectionObserver obs) {
        memcachedClient.removeObserver(obs);
    }
    /**
     *
     * 加入缓存.
     *
     * @param key key
     * @param value value
     * @param expire 过期时间
     * @return boolean
     */
    public boolean set(String key, Object value, int expire) {
        Future<Boolean> f = memcachedClient.set(key, expire, value);
        return getBooleanValue(f);
    }
    /**
     *
     *从缓存中获取.
     *
     * @param key key
     * @return Object
     */
    public Object get(String key) {
        return memcachedClient.get(key);
    }
    /**
     *
     *从缓存中获取.
     *
     * @param key key
     * @return Object
     */
    public Object asyncGet(String key) {
        Object obj = null;
        Future<Object> f = memcachedClient.asyncGet(key);
        try {
            obj = f.get(SpyMemcachedConstants.DEFAULT_TIMEOUT, SpyMemcachedConstants.DEFAULT_TIMEUNIT);
        } catch (Exception e) {
            f.cancel(false);
        }
        return obj;
    }
    /**
     *
     * 加入缓存.
     *
     * @param key key
     * @param value value
     * @param expire 过期时间
     * @return boolean
     */
    public boolean add(String key, Object value, int expire) {
        Future<Boolean> f = memcachedClient.add(key, expire, value);
        return getBooleanValue(f);
    }
    /**
     *
     * 替换.
     *
     * @param key key
     * @param value value
     * @param expire 过期时间
     * @return boolean
     */
    public boolean replace(String key, Object value, int expire) {
        Future<Boolean> f = memcachedClient.replace(key, expire, value);
        return getBooleanValue(f);
    }
    /**
     *
     * 从缓存中删除.
     *
     * @param key key
     * @return boolean
     */
    public boolean delete(String key) {
        Future<Boolean> f = memcachedClient.delete(key);
        return getBooleanValue(f);
    }
    /***
     *
     * flush.
     *
     * @return boolean
     */
    public boolean flush() {
        Future<Boolean> f = memcachedClient.flush();
        return getBooleanValue(f);
    }
    /**
     *
     * 从缓存中获取.
     *
     * @param keys keys
     * @return Map<String, Object>
     */
    public Map<String, Object> getMulti(Collection<String> keys) {
        return memcachedClient.getBulk(keys);
    }
    /**
     *
     * 从缓存中获取.
     *
     * @param keys keys
     * @return Map<String, Object>
     */
    public Map<String, Object> getMulti(String[] keys) {
        return memcachedClient.getBulk(keys);
    }
    /**
     *
     * 从缓存中获取.
     *
     * @param keys keys
     * @return Map<String, Object>
     */
    public Map<String, Object> asyncGetMulti(Collection<String> keys) {
        Map<String, Object> map = null;
        Future<Map<String, Object>> f = memcachedClient.asyncGetBulk(keys);
        try {
            map = f.get(SpyMemcachedConstants.DEFAULT_TIMEOUT, SpyMemcachedConstants.DEFAULT_TIMEUNIT);
        } catch (Exception e) {
            f.cancel(false);
        }
        return map;
    }
    /**
     *
     * 从缓存中获取.
     *
     * @param keys keys
     * @return Map<String, Object>
     */
    public Map<String, Object> asyncGetMulti(String[] keys) {
        Map<String, Object> map = null;
        Future<Map<String, Object>> f = memcachedClient.asyncGetBulk(keys);
        try {
            map = f.get(SpyMemcachedConstants.DEFAULT_TIMEOUT, SpyMemcachedConstants.DEFAULT_TIMEUNIT);
        } catch (Exception e) {
            f.cancel(false);
        }
        return map;
    }
    // ---- Basic Operation End ----//
    // ---- increment & decrement Start ----//
    public long increment(String key, int by, long defaultValue, int expire) {
        return memcachedClient.incr(key, by, defaultValue, expire);
    }
    public long increment(String key, int by) {
        return memcachedClient.incr(key, by);
    }
    public long decrement(String key, int by, long defaultValue, int expire) {
        return memcachedClient.decr(key, by, defaultValue, expire);
    }
    public long decrement(String key, int by) {
        return memcachedClient.decr(key, by);
    }
    public long asyncIncrement(String key, int by) {
        Future<Long> f = memcachedClient.asyncIncr(key, by);
        return getLongValue(f);
    }
    public long asyncDecrement(String key, int by) {
        Future<Long> f = memcachedClient.asyncDecr(key, by);
        return getLongValue(f);
    }
    // ---- increment & decrement End ----//
    public void printStats() throws IOException {
        printStats(null);
    }
    public void printStats(OutputStream stream) throws IOException {
        Map<SocketAddress, Map<String, String>> statMap = memcachedClient.getStats();
        if (stream == null) {
            stream = System.out;
        }
        StringBuffer buf = new StringBuffer();
        Set<SocketAddress> addrSet = statMap.keySet();
        Iterator<SocketAddress> iter = addrSet.iterator();
        while (iter.hasNext()) {
            SocketAddress addr = iter.next();
            buf.append(addr.toString() + "/n");
            Map<String, String> stat = statMap.get(addr);
            Set<String> keys = stat.keySet();
            Iterator<String> keyIter = keys.iterator();
            while (keyIter.hasNext()) {
                String key = keyIter.next();
                String value = stat.get(key);
                buf.append("  key=" + key + ";value=" + value + "/n");
            }
            buf.append("/n");
        }
        stream.write(buf.toString().getBytes());
        stream.flush();
    }
    public Transcoder getTranscoder() {
        return memcachedClient.getTranscoder();
    }
    private long getLongValue(Future<Long> f) {
        try {
            Long l = f.get(SpyMemcachedConstants.DEFAULT_TIMEOUT, SpyMemcachedConstants.DEFAULT_TIMEUNIT);
            return l.longValue();
        } catch (Exception e) {
            f.cancel(false);
        }
        return -1;
    }
    private boolean getBooleanValue(Future<Boolean> f) {
        try {
            Boolean bool = f.get(SpyMemcachedConstants.DEFAULT_TIMEOUT, SpyMemcachedConstants.DEFAULT_TIMEUNIT);
            return bool.booleanValue();
        } catch (Exception e) {
            f.cancel(false);
            return false;
        }
    }
    public MemcachedClient getMemcachedClient() {
        return memcachedClient;
    }
    public void setMemcachedClient(MemcachedClient memcachedClient) {
        this.memcachedClient = memcachedClient;
    }
}

测试：

public class SpyMemcached extends BaseTest {
    private ApplicationContext app;
    private SpyMemcachedManager memcachedManager;
    @Before
    public void init() {
        app = new ClassPathXmlApplicationContext("com/springmvc/config/app-context.xml");
        memcachedManager = (SpyMemcachedManager) app.getBean("memcachedManager");
    }
    @Test
    public void test() {
        try {
            System.out.println("set："+memcachedManager.set("SpyMemcached", "test", 9000));
            System.out.println("get："+memcachedManager.get("SpyMemcached"));
        } catch (Exception e) {
            e.printStackTrace();
        }
    }
}

Xmemcached 

<!-- https://mvnrepository.com/artifact/com.googlecode.xmemcached/xmemcached -->
<dependency>
    <groupId>com.googlecode.xmemcached</groupId>
    <artifactId>xmemcached</artifactId>
    <version>2.3.2</version>
</dependency>

xmemcached.properties配置文件：

#连接池大小即客户端个数
memcached.connectionPoolSize=1
memcached.failureMode=true
#server1
memcached.server1.host=127.0.0.1
memcached.server1.port=11211
memcached.server1.weight=1  

app-context-xmemcached.xml配置文件：

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:mvc="http://www.springframework.org/schema/mvc"
    xmlns:context="http://www.springframework.org/schema/context"
    xmlns:tx="http://www.springframework.org/schema/tx" xmlns:task="http://www.springframework.org/schema/task"
    xmlns:aop="http://www.springframework.org/schema/aop"
    xsi:schemaLocation="
        http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc-3.1.xsd
        http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.1.xsd
        http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-3.1.xsd
        http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-3.1.xsd
        http://www.springframework.org/schema/task http://www.springframework.org/schema/task/spring-task-3.1.xsd
        http://www.springframework.org/schema/aop
        http://www.springframework.org/schema/aop/spring-aop-3.0.xsd ">
    <!-- properties config   -->
    <bean class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer">
      <property name="order" value="1"/>
      <property name="ignoreUnresolvablePlaceholders" value="true"/>
      <property name="locations">
        <list>
            <value>classpath:/com/springmvc/config/xmemcached.properties</value>
        </list>
      </property>
    </bean>
    <!-- Memcached配置 -->
    <!-- p:connectionPoolSize="${memcached.connectionPoolSize}"   p:failureMode="${memcached.failureMode}" -->
    <bean id="memcachedClientBuilder" class="net.rubyeye.xmemcached.XMemcachedClientBuilder">
        <constructor-arg>
            <list>
                <bean class="java.net.InetSocketAddress">
                    <constructor-arg>
                        <value>${memcached.server1.host}</value>
                    </constructor-arg>
                    <constructor-arg>
                        <value>${memcached.server1.port}</value>
                    </constructor-arg>
                </bean>
            </list>
        </constructor-arg>
        <constructor-arg>
            <list>
                <value>${memcached.server1.weight}</value>
            </list>
        </constructor-arg>
        <property name="commandFactory" >
             <bean class="net.rubyeye.xmemcached.command.TextCommandFactory" />
        </property>
        <property name="sessionLocator" >
             <bean class="net.rubyeye.xmemcached.impl.KetamaMemcachedSessionLocator" />
        </property>
        <property name="transcoder" >
             <bean class="net.rubyeye.xmemcached.transcoders.SerializingTranscoder" />
        </property>
        <property name="connectionPoolSize" value="${memcached.connectionPoolSize}" />
        <property name="failureMode" value="${memcached.failureMode}" />
    </bean>
    <!-- Use factory bean to build memcached client -->
    <bean id="memcachedClient" factory-bean="memcachedClientBuilder" factory-method="build"  destroy-method="shutdown" />
</beans>

测试：

public class XMemcachedSpring extends BaseTest {
    private ApplicationContext app;
    private MemcachedClient memcachedClient;
    @Before
    public void init() {
        app = new ClassPathXmlApplicationContext("com/springmvc/config/app-context.xml");
        memcachedClient = (MemcachedClient) app.getBean("memcachedClient");
    }
    @Test
    public void test() {
        try {
            // 设置/获取
            memcachedClient.set("zlex", 36000, "set/get");
            System.out.println(memcachedClient.get("zlex"));
            // 替换
            memcachedClient.replace("zlex", 36000, "replace");
            System.out.println(memcachedClient.get("zlex"));
            // 移除
            memcachedClient.delete("zlex");
            System.out.println(memcachedClient.get("zlex"));
        } catch (Exception e) {
            e.printStackTrace();
        }
    }
}

参考：

http://blog.csdn.net/u013725455/article/details/52102170（以上内容转自此篇文章）

http://www.cnblogs.com/liuriqi/p/4039212.html

http://blog.sina.com.cn/s/blog_613904cc0101ibub.html

http://blog.csdn.net/haozhongjun/article/details/52958175

http://blog.csdn.net/l1028386804/article/details/48464111

http://www.cnblogs.com/cl1234/p/5391401.html