redis+spring注解方式实现配置缓存时间过期

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<bean id="jedisPoolConfig" class="redis.clients.jedis.JedisPoolConfig">

<property name="maxTotal" value="500" />

<property name="maxIdle" value="30"></property>

<property name="minEvictableIdleTimeMillis" value="300000"></property>

<property name="numTestsPerEvictionRun" value="3"></property>

<property name="timeBetweenEvictionRunsMillis" value="1800000"></property>

<property name="softMinEvictableIdleTimeMillis" value="10000" />

<property name="maxWaitMillis" value="1500" />

<property name="testOnBorrow" value="true" />

<property name="testWhileIdle" value="true" />

<property name="blockWhenExhausted" value="false" />
</bean>
<bean id="jedisConnectionFactory" class="org.springframework.data.redis.connection.jedis.JedisConnectionFactory" destroy-method="destroy">
<property name="poolConfig" ref="jedisPoolConfig"></property>
<property name="hostName" value="127.0.0.1"></property>
<property name="port" value="6379"></property>
<property name="timeout" value="15000"></property>
<property name="usePool" value="true"></property>
</bean>
<bean id="redisTemplate" class="org.springframework.data.redis.core.RedisTemplate">
<property name="connectionFactory" ref="jedisConnectionFactory"></property>
<property name="keySerializer">
<bean class="org.springframework.data.redis.serializer.StringRedisSerializer"/>
</property>
<property name="valueSerializer">
<bean class="org.springframework.data.redis.serializer.JdkSerializationRedisSerializer"/>
</property>
</bean>


<cache:annotation-driven cache-manager="redisCacheManager" />

<bean id="redisCacheManager" class="com.douwong.manage.test.action.ExtendedRedisCacheManager">


<constructor-arg name="redisOperations" ref="redisTemplate"/>
<constructor-arg name="cacheNames">
<set>
<value>caiya_a</value>
<value>caiya_test</value>
<value>sampleCache1</value>
<value>memoryCache</value>
<value>scanCache</value>
<value>padIndexCache</value>
<value>sampleCache1</value>
<value>sampleCache1</value>
</set>
</constructor-arg>

<property name="defaultCacheName" value="caiya_a"/>

<property name="loadRemoteCachesOnStartup" value="true"/>

<property name="usePrefix" value="true"/>

<property name="cachePrefix">
<bean class="org.springframework.data.redis.cache.DefaultRedisCachePrefix">
<constructor-arg name="delimiter" value=":"/>
</bean>
</property>

<property name="separator" value="#"/>

<property name="defaultExpiration" value="3600"/>

</bean>

package com.douwong.manage.test.action;

import java.util.Collection;
import java.util.Collections;
import java.util.regex.Pattern;

import javax.script.ScriptEngine;
import javax.script.ScriptEngineManager;
import javax.script.ScriptException;

import org.apache.commons.lang.StringUtils;
import org.apache.log4j.Logger;
import org.springframework.cache.Cache;
import org.springframework.data.redis.cache.RedisCache;
import org.springframework.data.redis.cache.RedisCacheManager;
import org.springframework.data.redis.cache.RedisCachePrefix;
import org.springframework.data.redis.core.RedisOperations;

//import lombok.extern.log4j.Log4j2;

/**
* 扩展redis缓存管理器
* <p>
* 重写 RedisCacheManager createCache 方法
* <p>
* 在缓存名字上添加过期时间表达式如:cachename#60*60
* @author hbp
*/
public class ExtendedRedisCacheManager extends RedisCacheManager {

private static final Logger logger = Logger.getLogger(ExtendedRedisCacheManager.class);

private static final ScriptEngine scriptEngine = new ScriptEngineManager().getEngineByName("JavaScript");

private static final Pattern pattern = Pattern.compile("[+\\-*/%]");

private String defaultCacheName;

private char separator = '#';

public ExtendedRedisCacheManager(RedisOperations redisOperations) {
this(redisOperations, Collections.<String>emptyList());
}

public ExtendedRedisCacheManager(RedisOperations redisOperations, Collection<String> cacheNames) {
super(redisOperations, cacheNames);
}

@Override
public Cache getCache(String name) {
// try to get cache by name
RedisCache cache = (RedisCache) super.getCache(name);
if (cache != null) {
return cache;
}

// there's no cache which has given name
// find separator in cache name
int index = name.lastIndexOf(getSeparator());
if (index < 0) {
return null;
}

// split name by the separator
String cacheName = name.substring(0, index);
if(StringUtils.isBlank(cacheName)){
cacheName = defaultCacheName;
}
cache = (RedisCache) super.getCache(cacheName);
if (cache == null) {
return null;
}

// get expiration from name
Long expiration = getExpiration(name, index);
if (expiration == null || expiration < 0) {
logger.warn("Default expiration time will be used for cache '{}' because cannot parse '{}', cacheName : " + cacheName + ", name : " + name);
return cache;
}

return new RedisCache(cacheName, (isUsePrefix() ? getCachePrefix().prefix(cacheName) : null), getRedisOperations(), expiration);
}

public char getSeparator() {
return separator;
}

/**
* Char that separates cache name and expiration time, default: #.
*
* @param separator
*/
public void setSeparator(char separator) {
this.separator = separator;
}

private Long getExpiration(final String name, final int separatorIndex) {
Long expiration = null;
String expirationAsString = name.substring(separatorIndex + 1);
try {
// calculate expiration, support arithmetic expressions.
if(pattern.matcher(expirationAsString).find()){
expiration = (long) Double.parseDouble(scriptEngine.eval(expirationAsString).toString());
}else{
expiration = Long.parseLong(expirationAsString);
}
} catch (NumberFormatException ex) {
logger.error(String.format("Cannnot separate expiration time from cache: '%s'", name), ex);
} catch (ScriptException e) {
logger.error(String.format("Cannnot separate expiration time from cache: '%s'", name), e);
}

return expiration;
}

@Override
public void setUsePrefix(boolean usePrefix) {
super.setUsePrefix(usePrefix);
}

@Override
public void setCachePrefix(RedisCachePrefix cachePrefix) {
super.setCachePrefix(cachePrefix);
}

public void setDefaultCacheName(String defaultCacheName) {
this.defaultCacheName = defaultCacheName;
}

}

注意：在引入相关jar包的时候，必须要用jedis_2.9.0.jar、spring-data-redis-1.6.0.RELEASE.jar，因为这些jar包的版本对整个项目影响很大的；

可以参考代码来源：https://my.oschina.net/wnjustdoit/blog/644311

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