CacheManager cacheManager = CacheManager.create();

// 或者

cacheManager = CacheManager.getInstance();

// 或者

cacheManager = CacheManager.create("/config/ehcache.xml");

// 或者

cacheManager = CacheManager.create("http://localhost:8080/test/ehcache.xml");

cacheManager = CacheManager.newInstance("/config/ehcache.xml");

// .......

// 获取ehcache配置文件中的一个cache

Cache sample = cacheManager.getCache("sample");

// 获取页面缓存

BlockingCache cache = new BlockingCache(cacheManager.getEhcache("SimplePageCachingFilter"));

// 添加数据到缓存中

Element element = new Element("key", "val");

sample.put(element);

// 获取缓存中的对象，注意添加到cache中对象要序列化 实现Serializable接口

Element result = sample.get("key");

// 删除缓存

sample.remove("key");

sample.removeAll();

// 获取缓存管理器中的缓存配置名称

for (String cacheName : cacheManager.getCacheNames()) {

    System.out.println(cacheName);

}

// 获取所有的缓存对象

for (Object key : cache.getKeys()) {

    System.out.println(key);

}

// 得到缓存中的对象数

cache.getSize();

// 得到缓存对象占用内存的大小

cache.getMemoryStoreSize();

// 得到缓存读取的命中次数

cache.getStatistics().getCacheHits();

// 得到缓存读取的错失次数

cache.getStatistics().getCacheMisses();

<?xml version="1.0" encoding="gbk"?>

<ehcache xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="ehcache.xsd">

    <diskStore path="java.io.tmpdir"/>

    <defaultCache maxElementsInMemory="10000" eternal="false" timeToIdleSeconds="30" timeToLiveSeconds="30" overflowToDisk="false"/>

    <!-- 

        配置自定义缓存

        maxElementsInMemory：缓存中允许创建的最大对象数

        eternal：缓存中对象是否为永久的，如果是，超时设置将被忽略，对象从不过期。

        timeToIdleSeconds：缓存数据的钝化时间，也就是在一个元素消亡之前，

                    两次访问时间的最大时间间隔值，这只能在元素不是永久驻留时有效，

                    如果该值是 0 就意味着元素可以停顿无穷长的时间。

        timeToLiveSeconds：缓存数据的生存时间，也就是一个元素从构建到消亡的最大时间间隔值，

                    这只能在元素不是永久驻留时有效，如果该值是0就意味着元素可以停顿无穷长的时间。

        overflowToDisk：内存不足时，是否启用磁盘缓存。

        memoryStoreEvictionPolicy：缓存满了之后的淘汰算法。

    -->

    <cache name="SimplePageCachingFilter" 

        maxElementsInMemory="10000" 

        eternal="false"

        overflowToDisk="false" 

        timeToIdleSeconds="900" 

        timeToLiveSeconds="1800"

        memoryStoreEvictionPolicy="LFU" />

</ehcache>

package com.hoo.ehcache.filter;

import java.util.Enumeration;

import javax.servlet.FilterChain;

import javax.servlet.http.HttpServletRequest;

import javax.servlet.http.HttpServletResponse;

import net.sf.ehcache.CacheException;

import net.sf.ehcache.constructs.blocking.LockTimeoutException;

import net.sf.ehcache.constructs.web.AlreadyCommittedException;

import net.sf.ehcache.constructs.web.AlreadyGzippedException;

import net.sf.ehcache.constructs.web.filter.FilterNonReentrantException;

import net.sf.ehcache.constructs.web.filter.SimplePageCachingFilter;

import org.apache.commons.lang.StringUtils;

import org.apache.log4j.Logger;

/**

 * <b>function:</b> mobile 页面缓存过滤器

 * @author hoojo

 * @createDate 2012-7-4 上午09:34:30

 * @file PageEhCacheFilter.java

 * @package com.hoo.ehcache.filter

 * @project Ehcache

 * @blog http://blog.csdn.net/IBM_hoojo

 * @email hoojo_@126.com

 * @version 1.0

 */

public class PageEhCacheFilter extends SimplePageCachingFilter {

    private final static Logger log = Logger.getLogger(PageEhCacheFilter.class);

    private final static String FILTER_URL_PATTERNS = "patterns";

    private static String[] cacheURLs;

    private void init() throws CacheException {

        String patterns = filterConfig.getInitParameter(FILTER_URL_PATTERNS);

        cacheURLs = StringUtils.split(patterns, ",");

    }

    @Override

    protected void doFilter(final HttpServletRequest request,

            final HttpServletResponse response, final FilterChain chain)

            throws AlreadyGzippedException, AlreadyCommittedException,

            FilterNonReentrantException, LockTimeoutException, Exception {

        if (cacheURLs == null) {

            init();

        }

        String url = request.getRequestURI();

        boolean flag = false;

        if (cacheURLs != null && cacheURLs.length > 0) {

            for (String cacheURL : cacheURLs) {

                if (url.contains(cacheURL.trim())) {

                    flag = true;

                    break;

                }

            }

        }

        // 如果包含我们要缓存的url 就缓存该页面，否则执行正常的页面转向

        if (flag) {

            String query = request.getQueryString();

            if (query != null) {

                query = "?" + query;

            }

            log.info("当前请求被缓存：" + url + query);

            super.doFilter(request, response, chain);

        } else {

            chain.doFilter(request, response);

        }

    }

    @SuppressWarnings("unchecked")

    private boolean headerContains(final HttpServletRequest request, final String header, final String value) {

        logRequestHeaders(request);

        final Enumeration accepted = request.getHeaders(header);

        while (accepted.hasMoreElements()) {

            final String headerValue = (String) accepted.nextElement();

            if (headerValue.indexOf(value) != -1) {

                return true;

            }

        }

        return false;

    }

    /**

     * @see net.sf.ehcache.constructs.web.filter.Filter#acceptsGzipEncoding(javax.servlet.http.HttpServletRequest)

     * <b>function:</b> 兼容ie6/7 gzip压缩

     * @author hoojo

     * @createDate 2012-7-4 上午11:07:11

     */

    @Override

    protected boolean acceptsGzipEncoding(HttpServletRequest request) {

        boolean ie6 = headerContains(request, "User-Agent", "MSIE 6.0");

        boolean ie7 = headerContains(request, "User-Agent", "MSIE 7.0");

        return acceptsEncoding(request, "gzip") || ie6 || ie7;

    }

}

<!-- 缓存、gzip压缩核心过滤器 -->

<filter>

    <filter-name>PageEhCacheFilter</filter-name>

    <filter-class>com.hoo.ehcache.filter.PageEhCacheFilter</filter-class>

    <init-param>

        <param-name>patterns</param-name>

        <!-- 配置你需要缓存的url -->

        <param-value>/cache.jsp, product.action, market.action </param-value>

    </init-param>

</filter>

<filter-mapping>

    <filter-name>PageEhCacheFilter</filter-name>

    <url-pattern>*.action</url-pattern>

</filter-mapping>

<filter-mapping>

    <filter-name>PageEhCacheFilter</filter-name>

    <url-pattern>*.jsp</url-pattern>

</filter-mapping>

package com.hoo.common.ehcache;

import java.io.Serializable;

import net.sf.ehcache.Cache;

import net.sf.ehcache.Element;

import org.aopalliance.intercept.MethodInterceptor;

import org.aopalliance.intercept.MethodInvocation;

import org.apache.log4j.Logger;

import org.springframework.beans.factory.InitializingBean;

/**

 * <b>function:</b> 缓存方法拦截器核心代码 

 * @author hoojo

 * @createDate 2012-7-2 下午06:05:34

 * @file MethodCacheInterceptor.java

 * @package com.hoo.common.ehcache

 * @project Ehcache

 * @blog http://blog.csdn.net/IBM_hoojo

 * @email hoojo_@126.com

 * @version 1.0

 */

public class MethodCacheInterceptor implements MethodInterceptor, InitializingBean {

    private static final Logger log = Logger.getLogger(MethodCacheInterceptor.class);

    private Cache cache;

    public void setCache(Cache cache) {

        this.cache = cache;

    }

    public void afterPropertiesSet() throws Exception {

        log.info(cache + " A cache is required. Use setCache(Cache) to provide one.");

    }

    public Object invoke(MethodInvocation invocation) throws Throwable {

        String targetName = invocation.getThis().getClass().getName();

        String methodName = invocation.getMethod().getName();

        Object[] arguments = invocation.getArguments();

        Object result;

        String cacheKey = getCacheKey(targetName, methodName, arguments);

        Element element = null;

        synchronized (this) {

            element = cache.get(cacheKey);

            if (element == null) {

                log.info(cacheKey + "加入到缓存： " + cache.getName());

                // 调用实际的方法

                result = invocation.proceed();

                element = new Element(cacheKey, (Serializable) result);

                cache.put(element);

            } else {

                log.info(cacheKey + "使用缓存： " + cache.getName());

            }

        }

        return element.getValue();

    }

    /**

     * <b>function:</b> 返回具体的方法全路径名称 参数

     * @author hoojo

     * @createDate 2012-7-2 下午06:12:39

     * @param targetName 全路径

     * @param methodName 方法名称

     * @param arguments 参数

     * @return 完整方法名称

     */

    private String getCacheKey(String targetName, String methodName, Object[] arguments) {

        StringBuffer sb = new StringBuffer();

        sb.append(targetName).append(".").append(methodName);

        if ((arguments != null) && (arguments.length != 0)) {

            for (int i = 0; i < arguments.length; i++) {

                sb.append(".").append(arguments[i]);

            }

        }

        return sb.toString();

    }

}

<context:component-scan base-package="com.hoo.common.interceptor"/> 

<!-- 配置eh缓存管理器 -->

<bean id="cacheManager" class="org.springframework.cache.ehcache.EhCacheManagerFactoryBean"/>

<!-- 配置一个简单的缓存工厂bean对象 -->

<bean id="simpleCache" class="org.springframework.cache.ehcache.EhCacheFactoryBean">

    <property name="cacheManager" ref="cacheManager" />

    <!-- 使用缓存 关联ehcache.xml中的缓存配置 -->

    <property name="cacheName" value="mobileCache" />

</bean>

<!-- 配置一个缓存拦截器对象，处理具体的缓存业务 -->

<bean id="methodCacheInterceptor" class="com. hoo.common.interceptor.MethodCacheInterceptor">

    <property name="cache" ref="simpleCache"/>

</bean>

<!-- 参与缓存的切入点对象 (切入点对象，确定何时何地调用拦截器) -->

<bean id="methodCachePointCut" class="org.springframework.aop.support.RegexpMethodPointcutAdvisor">

    <!-- 配置缓存aop切面 -->

    <property name="advice" ref="methodCacheInterceptor" />

    <!-- 配置哪些方法参与缓存策略 -->

    <!--  

        .表示符合任何单一字元                  

        ###  +表示符合前一个字元一次或多次                  

        ###  *表示符合前一个字元零次或多次                  

        ###  \Escape任何Regular expression使用到的符号                  

    -->                 

    <!-- .*表示前面的前缀(包括包名) 表示print方法-->

    <property name="patterns">

        <list>

            <value>com.hoo.rest.*RestService*\.*get.*</value>

            <value>com.hoo.rest.*RestService*\.*search.*</value>

        </list>

    </property>

</bean>

<cache name="mobileCache"

        maxElementsInMemory="10000"

        eternal="false"

        overflowToDisk="true"

        timeToIdleSeconds="1800"

        timeToLiveSeconds="3600"

        memoryStoreEvictionPolicy="LFU" />