Spring Cache注解+Redis

applicationContext.xml

<context:property-placeholderlocation="classpath:/config/properties/redis.properties" /><!-- 启用缓存注解功能，这个是必须的，否则注解不会生效，另外，该注解一定要声明在spring主配置文件中才会生效 --><cache:annotation-driven cache-manager="cacheManager" /><!-- spring自己的换管理器，这里定义了两个缓存位置名称 ，既注解中的value --><bean id="cacheManager" class="org.springframework.cache.support.SimpleCacheManager"><property name="caches"><set><bean class="org.cpframework.cache.redis.RedisCache"><property name="redisTemplate" ref="redisTemplate" /><property name="name" value="default"/></bean><bean class="org.cpframework.cache.redis.RedisCache"><property name="redisTemplate" ref="redisTemplate02" /><property name="name" value="commonCache"/></bean></set></property></bean><!-- redis 相关配置 --><bean id="poolConfig" class="redis.clients.jedis.JedisPoolConfig"><property name="maxIdle" value="${redis.maxIdle}" /><property name="maxWaitMillis" value="${redis.maxWait}" /><property name="testOnBorrow" value="${redis.testOnBorrow}" /></bean><bean id="connectionFactory"class="org.springframework.data.redis.connection.jedis.JedisConnectionFactory"p:host-name="${redis.host}" p:port="${redis.port}" p:pool-config-ref="poolConfig"p:database="${redis.database}" /><bean id="redisTemplate" class="org.springframework.data.redis.core.RedisTemplate"><property name="connectionFactory" ref="connectionFactory" /></bean><bean id="connectionFactory02"class="org.springframework.data.redis.connection.jedis.JedisConnectionFactory"p:host-name="${redis.host}" p:port="${redis.port}" p:pool-config-ref="poolConfig"p:database="${redis.database}" /><bean id="redisTemplate02" class="org.springframework.data.redis.core.RedisTemplate"><property name="connectionFactory" ref="connectionFactory02" /></bean>

redis.properties

# Redis settings  # server IPredis.host=192.168.xx.xx# server portredis.port=6379   # use dbIndexredis.database=0# 控制一个pool最多有多少个状态为idle(空闲的)的jedis实例redis.maxIdle=300  # 表示当borrow(引入)一个jedis实例时，最大的等待时间，如果超过等待时间(毫秒)，则直接抛出JedisConnectionException；redis.maxWait=3000  # 在borrow一个jedis实例时，是否提前进行validate操作；如果为true，则得到的jedis实例均是可用的redis.testOnBorrow=true  

RedisCache.java

package org.cpframework.cache.redis;import java.io.ByteArrayInputStream;import java.io.ByteArrayOutputStream;import java.io.IOException;import java.io.ObjectInputStream;import java.io.ObjectOutputStream;import org.springframework.cache.Cache;import org.springframework.cache.support.SimpleValueWrapper;import org.springframework.dao.DataAccessException;import org.springframework.data.redis.connection.RedisConnection;import org.springframework.data.redis.core.RedisCallback;import org.springframework.data.redis.core.RedisTemplate;public class RedisCache implements Cache {private RedisTemplate<String, Object> redisTemplate;private String name;public RedisTemplate<String, Object> getRedisTemplate() {return redisTemplate;}public void setRedisTemplate(RedisTemplate<String, Object> redisTemplate) {this.redisTemplate = redisTemplate;}public void setName(String name) {this.name = name;}@Overridepublic String getName() {// TODO Auto-generated method stubreturn this.name;}@Overridepublic Object getNativeCache() {// TODO Auto-generated method stubreturn this.redisTemplate;}@Overridepublic ValueWrapper get(Object key) {// TODO Auto-generated method stubfinal String keyf = (String) key;Object object = null;object = redisTemplate.execute(new RedisCallback<Object>() {public Object doInRedis(RedisConnection connection)throws DataAccessException {byte[] key = keyf.getBytes();byte[] value = connection.get(key);if (value == null) {return null;}return toObject(value);}});return (object != null ? new SimpleValueWrapper(object) : null);}@Overridepublic void put(Object key, Object value) {// TODO Auto-generated method stubfinal String keyf = (String) key;final Object valuef = value;final long liveTime = 86400;redisTemplate.execute(new RedisCallback<Long>() {public Long doInRedis(RedisConnection connection)throws DataAccessException {byte[] keyb = keyf.getBytes();byte[] valueb = toByteArray(valuef);connection.set(keyb, valueb);if (liveTime > 0) {connection.expire(keyb, liveTime);}return 1L;}});}/** * 描述 : <Object转byte[]>. <br> * <p> * <使用方法说明> * </p> *  * @param obj * @return */private byte[] toByteArray(Object obj) {byte[] bytes = null;ByteArrayOutputStream bos = new ByteArrayOutputStream();try {ObjectOutputStream oos = new ObjectOutputStream(bos);oos.writeObject(obj);oos.flush();bytes = bos.toByteArray();oos.close();bos.close();} catch (IOException ex) {ex.printStackTrace();}return bytes;}/** * 描述 : <byte[]转Object>. <br> * <p> * <使用方法说明> * </p> *  * @param bytes * @return */private Object toObject(byte[] bytes) {Object obj = null;try {ByteArrayInputStream bis = new ByteArrayInputStream(bytes);ObjectInputStream ois = new ObjectInputStream(bis);obj = ois.readObject();ois.close();bis.close();} catch (IOException ex) {ex.printStackTrace();} catch (ClassNotFoundException ex) {ex.printStackTrace();}return obj;}@Overridepublic void evict(Object key) {// TODO Auto-generated method stubfinal String keyf = (String) key;redisTemplate.execute(new RedisCallback<Long>() {public Long doInRedis(RedisConnection connection)throws DataAccessException {return connection.del(keyf.getBytes());}});}@Overridepublic void clear() {// TODO Auto-generated method stubredisTemplate.execute(new RedisCallback<String>() {public String doInRedis(RedisConnection connection)throws DataAccessException {connection.flushDb();return "ok";}});}}