Spring Cache注解+Redis

依赖jar包：

 

        <!-- config redis data and client jar-->
        <dependency>
            <groupId>org.springframework.data</groupId>
            <artifactId>spring-data-redis</artifactId>
            <version>1.6.4.RELEASE</version>
            <exclusions>
                <exclusion>
                    <groupId>org.springframework</groupId>
                    <artifactId>spring-aop</artifactId>
                </exclusion>
                <exclusion>
                    <groupId>org.springframework</groupId>
                    <artifactId>spring-oxm</artifactId>
                </exclusion>
                <exclusion>
                    <groupId>org.springframework</groupId>
                    <artifactId>spring-tx</artifactId>
                </exclusion>
            </exclusions>
        </dependency>
        <dependency>
            <groupId>redis.clients</groupId>
            <artifactId>jedis</artifactId>
            <version>2.8.1</version>
        </dependency>

 

 

 applicationContext-cache-redis.xml

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
    xmlns:p="http://www.springframework.org/schema/p"
	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" 
	xmlns:context="http://www.springframework.org/schema/context"
	xmlns:cache="http://www.springframework.org/schema/cache" 
	xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.2.xsd
       http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-3.2.xsd
       http://www.springframework.org/schema/cache http://www.springframework.org/schema/cache/spring-cache-3.1.xsd"
	default-autowire="byName">

	<context:property-placeholder
		location="classpath*:redis/redis.properties" ignore-unresolvable="true" />

	<!-- 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="com.xncredit.base.redis.RedisCache">
					<property name="redisTemplate" ref="redisTemplate" />
					<property name="name" value="default" />
				</bean>
				<bean class="com.xncredit.base.redis.RedisCache">
					<property name="redisTemplate" ref="redisTemplate" />
					<property name="name" value="UserCache" />
				</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:password="${redis.pwd}" 
		p:pool-config-ref="poolConfig"
		p:database="${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:password="${redis.pwd}" 
		p:pool-config-ref="poolConfig"
		p:database="${redis.database}" />

	<bean id="redisTemplate02" class="org.springframework.data.redis.core.RedisTemplate">
		<property name="connectionFactory" ref="connectionFactory02" />
	</bean>

</beans>

 

 

 

redis.properties

# Redis settings  
# server IP
redis.host=192.168.xx.xx
# server port
redis.port=6379   
# server password
redis.pwd=123456
# use dbIndex
redis.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 com.xncredit.base.redis;

import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.io.ObjectInputStream;
import java.io.ObjectOutputStream;
import java.util.Set;

import org.apache.shiro.dao.DataAccessException;
import org.springframework.cache.Cache;
import org.springframework.cache.support.SimpleValueWrapper;
import org.springframework.data.redis.connection.RedisConnection;
import org.springframework.data.redis.core.RedisCallback;
import org.springframework.data.redis.core.RedisTemplate;

/**
 * 
 * @author WangYaL 邮箱：[email protected]
 * @dateTime 2016年10月18日 下午3:32:17
 */
public class RedisCache implements Cache {

    private String name;
    private RedisTemplate<String, Object> redisTemplate;

    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;
    }

    @Override
    public String getName() {
        return this.name;
    }

    @Override
    public Object getNativeCache() {
        return this.redisTemplate;
    }

    @Override
    public ValueWrapper get(Object key) {
        final 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);
                byte[] t = name.getBytes();
                byte[] value = connection.hGet(t, key);
                if (value == null) {
                    return null;
                }
                return toObject(value);

            }
        });
        return (object != null ? new SimpleValueWrapper(object) : null);
    }

    @Override
    public <T> T get(Object key, Class<T> type) {
        // TODO Auto-generated method stub
        return null;
    }

    @Override
    public void put(Object key, Object value) {
        final 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);
                byte[] t = name.getBytes();
                connection.hSet(t, keyb, valueb);
                if (liveTime > 0) {
                    connection.expire(keyb, liveTime);
                }
                return 1L;
            }
        });
    }

    @Override
    public ValueWrapper putIfAbsent(Object key, Object value) {
        // TODO Auto-generated method stub
        return null;
    }

    @Override
    public void evict(Object key) {
        final String keyf = (String) key;
        redisTemplate.execute(new RedisCallback<Long>() {
            public Long doInRedis(RedisConnection connection)
                    throws DataAccessException {
//                return connection.del(keyf.getBytes());
                return connection.hDel(name.getBytes(), keyf.getBytes());
            }
        });
    }

    @Override
    public void clear() {
        // 清楚缓存，需要根据Cache的name属性，在redis中模糊查询相关key值的集合，并全部删除
        redisTemplate.execute(new RedisCallback<String>() {
            public String doInRedis(RedisConnection connection)
                    throws DataAccessException {
//                connection.flushDb();
                byte[] t = name.getBytes();
                Set<byte[]> fields = connection.hKeys(t);
                for (byte[] bs : fields) {
                    connection.hDel(t, bs);
                }
                return "ok";
            }
        });
    }

    /**
     * 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;
    }
}