ssm开发使用redis作为缓存，使用步骤

1、关于spring配置文件中对于redis的配置

　　<!-- redis配置 -->
    <bean id="jedisPoolConfig" class="redis.clients.jedis.JedisPoolConfig">
        <!-- <property name="maxActive" value="90"/> -->
        <property name="maxIdle" value="5"/>
        <!-- <property name="maxWait" value="1000"/> -->
        <property name="testOnBorrow" value="true"/>
    </bean>
　　　　<!--配置redis数据源-->
    <bean id="jedisPool" class="redis.clients.jedis.JedisPool" destroy-method="destroy">
        <constructor-arg ref="jedisPoolConfig"/>
        <constructor-arg value="192.168.21.195"/>
        <constructor-arg value="6379"/>
    </bean>
　　　　<!--配置自定义的RedisAPI工具类-->
    <bean id="redisAPI" class="org.slsale.common.RedisAPI">
        <property name="jedisPool" ref="jedisPool"/>
    </bean>

2、配置自定义的RedisAPI,对redis数据库的管理

package org.slsale.common;

import redis.clients.jedis.Jedis;
import redis.clients.jedis.JedisPool;

/**
 * jedisAPI
 * @author luzhewu
 *
 */
public class RedisAPI {
    public JedisPool jedisPool;// redis连接池对象

    public JedisPool getJedisPool() {
        return jedisPool;
    }

    public void setJedisPool(JedisPool jedisPool) {
        this.jedisPool = jedisPool;
    }

    /**
     * set key and value tp redis
     * @param key
     * @param value
     * @return
     */
    public boolean set(String key, String value) {
        Jedis jedis = null;
        try {
            jedis = jedisPool.getResource();// 获取jedis对象
            jedis.set(key, value);
            return true;
        } catch (Exception e) {
            e.printStackTrace();
        } finally {
            // 返还到连接池
            returnResource(jedisPool, jedis);
        }
        return false;
    }

    /**
     * 判断某个key是否存在
     * @param key
     * @return
     */
    public boolean exist(String key) {
        Jedis jedis = null;
        try {
            jedis = jedisPool.getResource();
            return jedis.exists(key);
        } catch (Exception e) {
            e.printStackTrace();
        } finally {
            // 返还到连接池
            returnResource(jedisPool, jedis);
        }
        return false;
    }

    /**
     * 通过key获取value
     * @param key
     * @return
     */
    public String get(String key) {
        String value = null;
        Jedis jedis = null;
        try {
            jedis = jedisPool.getResource();
            value = jedis.get(key);
        } catch (Exception e) {
            e.printStackTrace();
        } finally {
            // 返还到连接池
            returnResource(jedisPool, jedis);
        }
        return value;
    }

    /**
     * 返还到连接池
     * @param jedisPool
     * @param jedis
     */
    public static void returnResource(JedisPool jedisPool, Jedis jedis) {
        if (jedis != null) {
            jedisPool.returnResource(jedis);
        }
    }
}

3、redis相关依赖

 　　　　<!-- redis相关依赖jedis -->
        <dependency>
            <groupId>redis.clients</groupId>
            <artifactId>jedis</artifactId>
        <version>2.6.1</version>