下載spring-data-redis，gav如下：

                  <dependency>
			<groupId>org.springframework.data</groupId>
			<artifactId>spring-data-redis</artifactId>
			<version>1.0.1.RELEASE</version>
			<exclusions>
				<exclusion>
					<groupId>org.slf4j</groupId>
					<artifactId>slf4j-log4j12</artifactId>
				</exclusion>
				<exclusion>
					<groupId>org.slf4j</groupId>
					<artifactId>jcl-over-slf4j</artifactId>
				</exclusion>
			</exclusions>

		</dependency>
 

其中exclusion了兩個包，原因是與專案裡其它包衝突。

bean配置如下，可在web.xml裡配置載入bean檔案：

	<bean id="redisCacheManager" class="com.cr.common.cache.base.RedisCacheManger">
		<property name="pool" ref="shardedJedisPool"/>
	</bean>
	<!-- jedis 連線池配置-->
	<bean id="jedisPoolConfig" class="redis.clients.jedis.JedisPoolConfig">  
		<property name="maxActive"     value="${redis.pool.maxActive}" />  
		<property name="maxIdle"       value="${redis.pool.maxIdle}" />  
		<property name="maxWait"       value="${redis.pool.maxWait}" />  
		<property name="testOnBorrow"  value="${redis.pool.testOnBorrow}" />  
	</bean>  
	<!-- jedis 多個伺服器配置-->
	<bean id="jedisShardInfo1" class="redis.clients.jedis.JedisShardInfo">  
		<constructor-arg index="0" value="${redis2.ip}" />  
		<constructor-arg index="1" value="${redis.port}" type="int" />  
	</bean>	
	
	<bean id="jedisShardInfo2" class="redis.clients.jedis.JedisShardInfo">  
		<constructor-arg index="0" value="${redis.ip}" />  
		<constructor-arg index="1" value="${redis.port}" type="int" />  
	</bean>	
	
	<bean id="shardedJedisPool" class="redis.clients.jedis.ShardedJedisPool">  
		<constructor-arg index="0" ref="jedisPoolConfig" />  
		<constructor-arg index="1">
			<list>
				<ref bean="jedisShardInfo1" />
				<ref bean="jedisShardInfo2"/>
			</list>
		</constructor-arg>  
	</bean>
	
	<bean id="connectionFactory" class="org.springframework.data.redis.connection.jedis.JedisConnectionFactory"
		>
		<property name="hostName"   value="${redis.ip}" />  
		<property name="port"       value="${redis.port}" />  
		<property name="poolConfig" ref="jedisPoolConfig" /> 
	
		<!--<property name="shardInfo"  ref="shardedJedisPool"></property>-->
	</bean> 
     
	<context:property-placeholder  location="/WEB-INF/spring/SystemContext.properties"/> 
	<context:component-scan base-package="org.springframework.data.redis.samples"/>
        
 

屬性檔案內容如下：

redis.ip=192.168.1.110
redis2.ip=192.168.1.112
#Port   
redis.port=6379

#最大分配的物件數 
redis.pool.maxActive=1024
#最大能夠保持idel狀態的物件數
redis.pool.maxIdle=200
#當池內沒有返回物件時，最大等待時間
redis.pool.maxWait=1000
#當呼叫borrow Object方法時，是否進行有效性檢查 
redis.pool.testOnBorrow=true
#當呼叫return Object方法時，是否進行有效性檢查   
redis.pool.testOnReturn=true
 

快取管理介面：

public interface RedisCache {
	
	public <T> T getRedisCacheInfo(String key);

	public <T> boolean setRedisCacheInfo(String key, T value);
	
}

快取管理實現：

public class RedisCacheManger implements RedisCache {
	
	private ShardedJedisPool pool ;
	
	private Logger log = Logger.getLogger(RedisCacheManger.class); 
	public ShardedJedisPool getPool() {
		return pool;
	}

	public void setPool(ShardedJedisPool pool) {
		this.pool = pool;
	}

	public <T> T getRedisCacheInfo(String key) {
		
		try {
			log.info("get from redisCache :"+key);
			System.out.println("get from rediscache");
			ShardedJedis jedis = pool.getResource();
			pool.returnResource(jedis);
			return (T)jedis.get(key);
		} catch (Exception e) {
			e.printStackTrace();
		}
		return null;
	}
 

	public <T> boolean setRedisCacheInfo(String key, T value) {

		try {
			log.info("add to redisCache :"+key);
			System.out.println("add to rediscache");
			ShardedJedis jedis = pool.getResource();
			jedis.set(key, (String)value);
			pool.returnResource(jedis);
			return true;
		} catch (Exception e) {
			e.printStackTrace();
		}
		return false;
	}
	public static void main(String[] args) {
		new RedisCacheManger().setRedisCacheInfo("12345", "asdfg");
	}
}

快取切面註解：

@Retention(RetentionPolicy.RUNTIME)
@Target(ElementType.METHOD)
public @interface NeedRedisCached {}

快取切面處理類：

@Aspect
public class RedisCacheAspect implements Ordered {
	
	private static Logger log = Logger.getLogger(RedisCacheAspect.class); 
	private RedisCache redisCacheManager;
	private int orderValue = 3;
	public RedisCache getRedisCacheManager() {
		return redisCacheManager;
	}

	public void setRedisCacheManager(RedisCache redisCacheManager) {
		this.redisCacheManager = redisCacheManager;
	}

	@Pointcut("@annotation(com.jd.bi.odp.common.cache.core.NeedRedisCached)")
	public void needRedisCached() {

	}
	
	@Around("needRedisCached() && args(filter,..)")
	public Object aroundInvoke(ProceedingJoinPoint pjp, QueryFilter filter) throws Throwable {
		log.info("enter aroundInvoke!!!");
		if (filter.getValue() == null) {
			return null;
		}

		boolean cacheEnabled = CommonUtil.parseBoolean(HBaseConfig.getProperty("redisCache.enabled"), false);

		if (cacheEnabled) {
			
			String md5key = MD5Util.getMD5(filter.getValue().toString());
			Object value = redisCacheManager.getRedisCacheInfo(md5key);
			boolean flag = false;
			if (null != value) {

				JSONObject json = new JSONObject(value.toString());
				return json;
			} else if ("null".equals(value)) {
				return null;
			} else { //執行hbase查詢
				value = pjp.proceed();
				if(null!=value){//此處根據業務邏輯判斷不快取的條件
					}
					else{
						flag = redisCacheManager.setRedisCacheInfo(md5key, value.toString());
						
						if(flag)
							log.info("add a cache success by key: "+md5key);
						else
							log.warn("add a cache failure by key: "+md5key);
					}
				}
				return value;
			}
		} else {// 執行hbase查詢
			return pjp.proceed();
		}
	}
	@Override
	public int getOrder() {
		return orderValue;
	}
	public int getOrderValue() {
		return orderValue;
	}

	public void setOrderValue(int orderValue) {
		this.orderValue = orderValue;
	}
}

快取存在直接返回，不存在的話執行資料來源查詢，此處是hbase查詢，並設定快取。

切面配置：

	<!-- redis快取執行切面 -->
	<bean id="RedisCacheAspect"
		class="com.cr.common.cache.core.RedisCacheAspect">
		<property name="orderValue" value="3" />
		<property name="redisCacheManager" ref="redisCacheManager"/>
	</bean>
	<!-- 切面申明配置-->
	<aop:aspectj-autoproxy>
		<aop:include name="RedisCacheAspect" />
	</aop:aspectj-autoproxy>
	

此時，前端web頁面使用者的訪問觸發的action如果滿足條件，則會進入切面方法處理，完成redis快取的使用。