spring同时整合redis和ehcache

spring同时整合redis和ehcache3，远程缓存和本地缓存同时使用，配置注解根据不同的使用场景和数据选择指定缓存。

1.maven依赖。注意版本兼容，开始就被版本问题坑了下。

<dependency>        <groupId>org.springframework.data</groupId>       <artifactId>spring-data-redis</artifactId>        <version>1.8.0.RELEASE</version>    </dependency>        <dependency>        <groupId>redis.clients</groupId>       <artifactId>jedis</artifactId>        <version>2.9.0</version>    </dependency>        <dependency>        <groupId>org.apache.commons</groupId>       <artifactId>commons-pool2</artifactId>        <version>2.4.2</version>    </dependency>        <dependency>    <groupId>org.ehcache</groupId>    <artifactId>ehcache</artifactId>    <version>3.4.0</version></dependency>  <dependency>    <groupId>javax.cache</groupId>    <artifactId>cache-api</artifactId>  <version>1.0.0</version>  </dependency> 

2.配置文件

<?xml version="1.0" encoding="UTF-8"?>  <beans xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"    xmlns="http://www.springframework.org/schema/beans"    xmlns:context="http://www.springframework.org/schema/context"        xmlns:aop="http://www.springframework.org/schema/aop"         xmlns:tx="http://www.springframework.org/schema/tx"        xmlns:cache="http://www.springframework.org/schema/cache"        xsi:schemaLocation="http://www.springframework.org/schema/context                             http://www.springframework.org/schema/context/spring-context.xsd         http://www.springframework.org/schema/beans         http://www.springframework.org/schema/beans/spring-beans.xsd       http://www.springframework.org/schema/aop       http://www.springframework.org/schema/apo/spring-aop.xsd         http://www.springframework.org/schema/tx                     http://www.springframework.org/schema/tx/spring-tx.xsd                   http://www.springframework.org/schema/cache                   http://www.springframework.org/schema/cache/spring-cache.xsd">      <!-- remote redis -->    <bean id="jedisPoolConfig" class="redis.clients.jedis.JedisPoolConfig">    <property name="maxTotal" value="50"></property>    <property name="maxIdle" value="20"></property>    <property name="minIdle" value="10"></property>    <property name="maxWaitMillis" value="3000"></property>    <property name="testWhileIdle" value="false"/>    </bean>                     <bean id="jedisConnectionFactory" class="org.springframework.data.redis.connection.jedis.JedisConnectionFactory"><property name="hostName" value="10.20.130.34"></property><property name="port" value="4544"></property><property name="password" value="paic1234"></property><property name="poolConfig" ref="jedisPoolConfig"></property></bean><bean id="springDataRedisTemplate" class="org.springframework.data.redis.core.RedisTemplate"><property name="connectionFactory" ref="jedisConnectionFactory"></property><!-- 序列化 --><property name="keySerializer"><bean class="org.springframework.data.redis.serializer.StringRedisSerializer"></bean></property><property name="hashKeySerializer"><bean class="org.springframework.data.redis.serializer.StringRedisSerializer"></bean></property><property name="valueSerializer"><bean class="com.caiwufei.entity.base.BaseEntity"></bean></property><property name="hashValueSerializer"><bean class="com.caiwufei.entity.base.BaseEntity"></bean></property></bean><bean id="redisCacheManager" class="org.springframework.data.redis.cache.RedisCacheManager"><constructor-arg type="org.springframework.data.redis.core.RedisOperations" ref="springDataRedisTemplate" /></bean><!-- local ehcache --><bean id="jCacheManagerFactoryBean" class="org.springframework.cache.jcache.JCacheManagerFactoryBean">      <property name="cacheManagerUri" value="classpath:/config/ehcache.xml" />  </bean>  <bean id="jCacheCacheManager" class="org.springframework.cache.jcache.JCacheCacheManager">      <property name="cacheManager" ref="jCacheManagerFactoryBean" />  </bean>  <!-- mix cacheManager --><!-- <bean id="cacheManager" class="com.caiwufei.common.cache.AppCacheManager"><property name="redisCacheManager" ref="redisCacheManager"/><property name="ehCacheManager" ref="jCacheCacheManager"/></bean><cache:annotation-driven cache-manager="cacheManager"/>    --><cache:annotation-driven cache-manager="redisCacheManager"/>    <cache:annotation-driven cache-manager="jCacheCacheManager"/>    </beans>

3 代码

package com.caiwufei.dao.o2o;import org.springframework.cache.annotation.Cacheable;import org.springframework.stereotype.Repository;import com.caiwufei.entity.base.BaseDao;import com.caiwufei.entity.o2o.AccountInfo;@Repositorypublic interface AccountInfoDao extends BaseDao<AccountInfo>{@Cacheable(cacheManager="jCacheCacheManager", cacheNames="SSAccountInfo", key="'accountId_' + #root.args[0].accountId")public AccountInfo queryByAccountIdForTestEhcache(AccountInfo a);@Cacheable(cacheManager="redisCacheManager", cacheNames="SSAccountInfo", key="'accountId_' + #root.args[0].accountId")public AccountInfo queryByAccountIdForTestRedis(AccountInfo a);}

4.想让数据缓存到指定的缓存中，有两个方式，两种方式亲测都是可以的：

1在注解中指定缓存管理器，cacheManager="jCacheCacheManager"或者cacheManager="redisCacheManager"，此时配置xml的时候需要配置多条<cache:annotation-driven/> 并且指定缓存管理器，如同上面xml的配置；

2实现spring的缓存管理器接口，xml中的 AppCacheManager就是自己实现的类。此时只需要配置一条缓存注解驱动（AppCacheManager类下面有），这种方式需要在cacheNames中做出标志，使缓存管理器能够判断出该使用哪个缓存管理器。

xml上面有两个类是自己定义的。这里也顺便贴一下。

package com.caiwufei.common.cache;import java.util.ArrayList;import java.util.Collection;import org.springframework.cache.Cache;import org.springframework.cache.CacheManager;public class AppCacheManager implements CacheManager{private CacheManager redisCacheManager;  private CacheManager ehCacheManager; private final static String redisPrefix = "redis";@Overridepublic Cache getCache(String name) {if (name.startsWith(redisPrefix))  { return redisCacheManager.getCache(name);  } else {return ehCacheManager.getCache(name);  }}@Overridepublic Collection<String> getCacheNames() {    Collection<String> cacheNames = new ArrayList<String>();                  if (redisCacheManager != null) {              cacheNames.addAll(redisCacheManager.getCacheNames());          }          if (ehCacheManager != null) {              cacheNames.addAll(ehCacheManager.getCacheNames());          }                 return cacheNames;  }public CacheManager getRedisCacheManager() {return redisCacheManager;}public void setRedisCacheManager(CacheManager redisCacheManager) {this.redisCacheManager = redisCacheManager;}public CacheManager getEhCacheManager() {return ehCacheManager;}public void setEhCacheManager(CacheManager ehCacheManager) {this.ehCacheManager = ehCacheManager;}}

package com.caiwufei.entity.base;import java.io.ByteArrayInputStream;import java.io.ByteArrayOutputStream;import java.io.ObjectInputStream;import java.io.ObjectOutputStream;import java.io.Serializable;import org.springframework.data.redis.serializer.RedisSerializer;import org.springframework.data.redis.serializer.SerializationException;public class BaseEntity<T> implements Serializable, RedisSerializer<T>{/** *  */private static final long serialVersionUID = 3812075902697557491L;@Overridepublic byte[] serialize(T t) throws SerializationException {if (t == null) {            return new byte[0];        }ObjectOutputStream oos = null;        ByteArrayOutputStream baos = null;        try {            // 序列化            baos = new ByteArrayOutputStream();            oos = new ObjectOutputStream(baos);            oos.writeObject(t);            byte[] bytes = baos.toByteArray();            return bytes;        } catch (Exception e) {            e.printStackTrace();        }        return null;}@SuppressWarnings("unchecked")@Overridepublic T deserialize(byte[] bytes) throws SerializationException {if (bytes == null || bytes.length == 0) {        return null;    }ByteArrayInputStream bais = null;    try {         // 反序列化         bais = new ByteArrayInputStream(bytes);         ObjectInputStream ois = new ObjectInputStream(bais);         return (T) ois.readObject();    } catch (Exception e) {         e.printStackTrace();    }    return null;}}