最近开发新代码的时候发现有好多同学,开始考虑redis的原子操作执行了,实际的业务场景:比如指定发放优惠劵;redis的秒杀活动等。

今天我根据实际的开发业务,咱们写一个指定发送优惠劵的逻辑。并发其实支持 jmeter测试并不好、

 

1.先来一个生产key的代码

package com.hbg.common.constants;

/**
 * 缓存key管理类
 *
 * @author huojg
 */
public class RedisKeyConstant {

    public static final String ROOT = "hbg:";

    public static final String ROOT_VALUE = "hbg";

    public static final String SPRING_CACHE_ROOT = "hbg::";

    /**
     * 通用 获取Key
     *
     * @param key
     * @param args
     * @return
     */
    public static String getKey(String key, Object... args) {
        if (args != null && args.length > 0) {
            return ROOT + String.format(key, args);
        }
        return ROOT + key;
    }

    public static String getSpringCachedKey(String key, Object... args) {
        if (args != null && args.length > 0) {
            return SPRING_CACHE_ROOT + String.format(key, args);
        }
        return SPRING_CACHE_ROOT + key;
    }

    public static String annoCachedKey(String key, Object... args) {
        if (args != null && args.length > 0) {
            return String.format(key, args);
        }
        return key;
    }

    /**
     * 系统配置缓存key,展位填充,%s = 组名
     */
    public static final String SYSTEM_CONFIG = "system.config:%s";

    /**
     * 头部Banner配置缓存key :banner位置
     */
    public static final String BANNER = "banner";

    /**
     * 售后前置标记key
     */
    public static final String AFTER_SALE = "after:sale:";

    /**
     * 优惠券
     */
    public static final String CARD = "cardVoucher:id:%s";

    public static final String COUPON_GET_TYPE = "cardVoucher:getType:id:%s";

    public static final String USER_GET_NUM = "coupon:userId:%s:couponId:%s";
    /**
     * 购买,按规格粒度 加锁; %s = skuId
     * 适用于非活动购买
     */
    public static final String SKU_STOCK_LOCK = "stock:lock:skuId:%s";

    /**
     * 直播广告
     */
    public static final String LIVE = "live.id:%s";

    /**
     * 购物车 锁标识 用户Id + skuId
     */
    public static final String SHOPPING_CART_LOCK = "shoppingCart:userId:%s:skuId:%s";

    /**
     * 商品库存
     */
    public static final String SKU_STOCK = "stock:skuId:%s";

    /**
     * 商品统计锁
     */
    public static final String GOODS_STATISTIC_STOCK_LOCK = "goods.statistic.goodsId:%s";

    /**
     * 订单发货消息
     */
    public static final String ORDER_DELIVER_MESSAGE = "order:deliver:message:%s";

    /**
     * 商品详情缓存
     */
    public static final String GOODS_DETAIL = "goods:detail:Id:%s";

    /**
     * 商品详情缓存
     */
    public static final String GOODS_PROFIT_CONFIG = "goods:profit:config:Id:%s";

    /**
     * 商品详情缓存
     */
    public static final String ACT_GOODS_DETAIL = "act:goods:detail:Id:%s";
}

2.再来lua脚本

couponRedis.lua

--库存
local stock=KEYS[1]
local stockValue=redis.call('GET',stock)
--限领次数
local num=KEYS[2]
local numValue=redis.call('GET',num)
--领取次数
local getNum=KEYS[3]
local getNumValue=redis.call('GET',getNum)


if stockValue then
--库存是否小于0
    if tonumber(stockValue)<=0 then
    return 0
    end
    --是否限领
    if numValue then
     --redis.log(redis.LOG_DEBUG,'2222')
     --是否领取过
      if getNumValue then
      --是否超出限领
        if tonumber(getNumValue) >= tonumber(numValue) then
        --redis.log(redis.LOG_DEBUG,'33333')
        return 0
        end
      --redis.log(redis.LOG_DEBUG,'666666')
      redis.call('set',getNum,tonumber(getNumValue)+1)
      redis.call('SET',stock,tonumber(stockValue)-1)
      return 1
      end
      --redis.log(redis.LOG_DEBUG,'44444')
      redis.call('set',getNum,1)
      redis.call('SET',stock,tonumber(stockValue)-1)
     return 1
     end
   --redis.log(redis.LOG_DEBUG,'11111')
   redis.call('SET',stock,tonumber(stockValue)-1)
  return 1
end

3.执行java代码调用:

public boolean getCardVoucher(UserGetCouponsRequest baseRequest, Long userId) {

        // 执行 lua 脚本
        DefaultRedisScript<Boolean> redisScript = new DefaultRedisScript<>();
        // 指定返回类型
        redisScript.setResultType(Boolean.class);
        // 指定 lua 脚本
        redisScript.setScriptSource(new ResourceScriptSource(new ClassPathResource("couponRedis.lua")));


        List<String> list=new ArrayList<>();
        list.add(RedisKeyConstant.getKey(RedisKeyConstant.CARD, baseRequest.getCardId()));
        list.add(RedisKeyConstant.getKey(RedisKeyConstant.COUPON_GET_TYPE, baseRequest.getCardId()));
        list.add(RedisKeyConstant.getKey(RedisKeyConstant.USER_GET_NUM, baseRequest.getUserId(),baseRequest.getCardId()) );

        // 参数一:redisScript,参数二:key列表,参数三:arg(可多个)
        Boolean result = redisTemplate.execute(redisScript, list);
        log.info("结果:"+result);
        if(result){
            getCoupon(baseRequest,userId);
        }
        else {
            throw BusinessExceptionFactory.create(BusinessErrorEnum.SERVER_IS_BUSY);
        }

4.在给你们加上依赖包

<dependency>
   <groupId>redis.clients</groupId>
   <artifactId>jedis</artifactId>
   <version>3.1.0</version>
</dependency>
<dependency>
   <groupId>org.redisson</groupId>
   <artifactId>redisson</artifactId>
   <version>3.11.0</version>
</dependency>
<!-- 使用spring cache -->
<dependency>
   <groupId>org.springframework.boot</groupId>
   <artifactId>spring-boot-starter-cache</artifactId>
</dependency>
<!-- redis -->
<dependency>
   <groupId>org.springframework.boot</groupId>
   <artifactId>spring-boot-starter-data-redis</artifactId>
</dependency>
RedisTemplate<String, String> redisTemplate;

 

总结: 上面就是基本的通过lua脚本执行redis命令,来完成java业务代码,java通过script加载引擎的模式引用lua文件。保证执行的redis命令都在一个lua脚本中,保证中执行的一个原子性。

 

注意:好多同学看不懂lua脚本的语法,解释如下

local 标识 当前变量全局
KEYS[?] 这是我们redis要设置的key,默认是从1开始
redis.call('GET',getNum) 通过语法函数。命令
'GET' 获取当前key的值。跟redis直接获取key 一样一样的。

重点:
if条件
lua脚本的语法: if ...  then ... end

简单理解就是,如果 if 后面的语句是true 就执行 then后面的语句。end就是结束符
我的理解 把 then ...end   理解成java的 if()形式就ok


关于lua语法结构和使用,包括。变量定于,if条件。for条件,结束语
跟学习java的语法结构相差不多,同学们自行找资源学习。


最后给同学们一点好东西
package com.hbg.common.config;

import com.fasterxml.jackson.annotation.JsonAutoDetect;
import com.fasterxml.jackson.annotation.JsonTypeInfo;
import com.fasterxml.jackson.annotation.PropertyAccessor;
import com.fasterxml.jackson.databind.DeserializationFeature;
import com.fasterxml.jackson.databind.MapperFeature;
import com.fasterxml.jackson.databind.ObjectMapper;
import com.fasterxml.jackson.databind.SerializationFeature;
import com.fasterxml.jackson.datatype.jsr310.JavaTimeModule;
import lombok.extern.slf4j.Slf4j;
import org.redisson.Redisson;
import org.redisson.api.RedissonClient;
import org.redisson.client.codec.Codec;
import org.redisson.client.codec.JsonJacksonMapCodec;
import org.redisson.codec.JsonJacksonCodec;
import org.redisson.config.Config;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.data.redis.connection.RedisConnectionFactory;
import org.springframework.data.redis.core.RedisTemplate;
import org.springframework.data.redis.serializer.GenericJackson2JsonRedisSerializer;
import org.springframework.data.redis.serializer.StringRedisSerializer;
import org.springframework.http.converter.json.Jackson2ObjectMapperBuilder;
import redis.clients.jedis.JedisPool;
import redis.clients.jedis.JedisPoolConfig;

@Configuration
@Slf4j
public class RedisConfig {

    @Value("${spring.redis.host}")
    private String host;

    @Value("${spring.redis.port}")
    private int port;

    @Value("${spring.redis.timeout}")
    private int timeout;

    @Value("${database:0}")
    private Integer database;

    @Value("${spring.redis.jedis.pool.max-idle}")
    private int maxIdle;

    @Value("${spring.redis.jedis.pool.max-wait}")
    private long maxWaitMillis;

    @Value("${spring.redis.password}")
    private String password;

    @Value("${spring.redis.block-when-exhausted}")
    private boolean  blockWhenExhausted;

    @Bean
    public JedisPool redisPoolFactory() {
        log.info("JedisPool注入成功!!");
        log.info("redis地址:" + host + ":" + port);
        log.info("timeout:"+timeout);
        log.info("maxIdle:"+maxIdle);
        log.info("maxWaitMillis:"+maxWaitMillis);
        log.info("blockWhenExhausted:"+blockWhenExhausted);
        JedisPoolConfig jedisPoolConfig = new JedisPoolConfig();
        jedisPoolConfig.setMaxIdle(maxIdle);
        jedisPoolConfig.setMaxWaitMillis(maxWaitMillis);
        // 连接耗尽时是否阻塞, false报异常,ture阻塞直到超时, 默认true
        jedisPoolConfig.setBlockWhenExhausted(blockWhenExhausted);
        // 是否启用pool的jmx管理功能, 默认true
        jedisPoolConfig.setJmxEnabled(true);
        JedisPool jedisPool = new JedisPool(jedisPoolConfig, host, port, timeout, password);
        log.info("jedisPool:"+jedisPool);
        return jedisPool;
    }

    @Bean
    public RedissonClient redissonClient() {

        ObjectMapper mapper = Jackson2ObjectMapperBuilder.json()
                .featuresToDisable(SerializationFeature.WRITE_DATES_AS_TIMESTAMPS)
                .modules(new JavaTimeModule())
                .build();
        Codec codec = new JsonJacksonCodec(mapper);
        Config config = new Config();
        config.setCodec(codec);
        config.useSingleServer()
                .setAddress("redis://" + host + ":" + port)
                .setPassword(password)
                .setDatabase(database == null ? 0 : database)
                .setTimeout(5000)
                .setSubscriptionConnectionMinimumIdleSize(1)
                .setSubscriptionConnectionPoolSize(256)
                .setConnectTimeout(30000)
                .setConnectionPoolSize(256)
                .setConnectionMinimumIdleSize(1)
                .setRetryAttempts(3)
                .setRetryInterval(3000)
                .setIdleConnectionTimeout(30000)
                .setClientName("com.nuonuo.accounting.redisclient");

        return Redisson.create(config);
    }


    /**
     * 引入RedisTemplate
     * @param factory
     * @return
     */
    @Bean
    public RedisTemplate<String, Object> redisTemplate(RedisConnectionFactory factory){
        RedisTemplate<String, Object> redisTemplate = new RedisTemplate<>();
        redisTemplate.setConnectionFactory(factory);

        //json转对象类,不设置默认的会将json转成hashmap
        ObjectMapper om = new ObjectMapper();
        om.setVisibility(PropertyAccessor.ALL, JsonAutoDetect.Visibility.ANY);
        om.disable(SerializationFeature.WRITE_DATES_AS_TIMESTAMPS);
        om.registerModule(new JavaTimeModule());
        om.configure(MapperFeature.USE_ANNOTATIONS, false);
        om.configure(DeserializationFeature.FAIL_ON_UNKNOWN_PROPERTIES, false);
        om.configure(SerializationFeature.FAIL_ON_EMPTY_BEANS, false);
        // 此项必须配置,否则会报java.lang.ClassCastException: java.util.LinkedHashMap cannot be cast to XXX
        om.enableDefaultTyping(ObjectMapper.DefaultTyping.NON_FINAL, JsonTypeInfo.As.PROPERTY);
        //使用Jackson 2,将对象序列化为JSON
        GenericJackson2JsonRedisSerializer jackson2JsonRedisSerializer = new GenericJackson2JsonRedisSerializer(om);
        redisTemplate.setValueSerializer(jackson2JsonRedisSerializer);

        // 设置key,value的序列化器
        redisTemplate.setKeySerializer(new StringRedisSerializer());
        redisTemplate.setValueSerializer(jackson2JsonRedisSerializer);

        redisTemplate.setHashKeySerializer(new StringRedisSerializer());
        redisTemplate.setHashValueSerializer(jackson2JsonRedisSerializer);

        redisTemplate.afterPropertiesSet();
        return redisTemplate;
    }

}

注入redis 和redisson 的工具conf类

RedissonUtil
package com.hbg.common.cache;

import cn.hutool.core.util.StrUtil;
import lombok.extern.slf4j.Slf4j;
import org.redisson.RedissonMultiLock;
import org.redisson.api.*;
import org.redisson.client.codec.Codec;
import org.springframework.stereotype.Component;

import javax.annotation.PreDestroy;
import java.util.List;
import java.util.Set;
import java.util.concurrent.TimeUnit;

@Slf4j
@Component
public class RedissonUtil {

    /**
     * 默认缓存时间
     */
    private static final Long DEFAULT_EXPIRED = 5 * 60L;
    /**
     * redisson client对象
     */
    private final RedissonClient redisson;

    public RedissonUtil(RedissonClient redisson) {
        this.redisson = redisson;
    }

    /**
     * 读取缓存
     *
     * @param key 缓存key
     * @param <V>
     * @return 缓存返回值
     */
    public <V> V get(String key) {
        try {
            RBucket<V> bucket = redisson.getBucket(key);
            return bucket.get();
        } catch (Exception e) {
            this.remove(key);
        }
        return null;
    }


    /**
     * 读取缓存
     *
     * @param key 缓存key
     * @param <V>
     * @param codec value编码解码方式
     * @return 缓存返回值
     * @like https://yq.aliyun.com/articles/551642/
     */
    public <V> V get(String key, Codec codec) {
        RBucket<V> bucket = redisson.getBucket(key, codec);
        return bucket.get();
    }


    /**
     * rmap中获取
     */
    public <K, V>V get(String key, String hashKey, Codec codec) {
        RMap<K, V> map = redisson.getMap(key, codec);
        return map.get(hashKey);
    }


    /**
     * rmap中获取
     */
    public <K, V>V get(String key, String hashKey) {
        RMap<K, V> map = redisson.getMap(key);
        return map.get(hashKey);
    }


    /**
     * rmap中设置值
     */
    public <K, V>V put(String key, K hashKey, V v) {
        RMap<K, V> map = redisson.getMap(key);
        return map.put(hashKey,v);
    }

    /**
     * rmap中设置值
     */
    public <K, V>V put(String key, K hashKey, V v, Codec codec) {
        RMap<K, V> map = redisson.getMap(key, codec);
        return map.put(hashKey,v);
    }

    /**
     * 设置缓存
     *
     * @param key   缓存key
     * @param value 缓存值
     * @param <V>
     */
    public <V> void set(String key, V value) {
        RBucket<V> bucket = redisson.getBucket(key);
        bucket.set(value, DEFAULT_EXPIRED, TimeUnit.SECONDS);
    }

    /**
     * 获取set格式的缓存
     *
     * @param key 缓存key
     * @return
     */
    public <V> RSet<V> getRSet(String key) {
        return redisson.getSet(key);
    }

    /**
     * 获取set格式的缓存
     *
     * @param key   缓存key
     * @return
     */
    public <V> Set<V> getSets(String key) {
        return getRSet(key);
    }

    /**
     * 设置缓存,不设置过期时间
     *
     * @param key   缓存key
     * @param value 缓存值
     * @param <V>
     */
    public <V> void getAndSet(String key, V value) {
        RBucket<V> bucket = redisson.getBucket(key);
        bucket.set(value);
    }

    /**
     * 设置缓存
     *
     * @param key     缓存key
     * @param value   缓存值
     * @param expired 缓存过期时间
     * @param <V>     类型
     */
    public <V> void set(String key, V value, long expired) {
        RBucket<V> bucket = redisson.getBucket(key);
        bucket.set(value, expired <= 0 ? DEFAULT_EXPIRED : expired, TimeUnit.SECONDS);
    }

    /**
     * 移除缓存
     *
     * @param key
     */
    public void remove(String key) {
        redisson.getBucket(key).delete();
    }


    /**
     * 移除缓存,map
     *
     * @param key
     */
    public void remove(String key, String hashKey) {
        redisson.getMap(key).remove(hashKey);
    }



    /**
     * 设置过期时间
     *
     * @param key
     */
    public void expire(String key) {
        redisson.getBucket(key).expire(10, TimeUnit.SECONDS);
    }
    
   /**
    * 自定义设置设置过期时间
    * @param key
    * @param time
    * @param timeType
    */
    public void expire(String key,long time,TimeUnit timeType) {
        redisson.getBucket(key).expire(time, timeType);
    }

    /**
     * 判断缓存是否存在
     *
     * @param key
     * @return
     */
    public boolean exists(String key) {
        return redisson.getBucket(key).isExists();
    }

    /**
     * 判断缓存是否存在 针对hash数据结构
     *
     * @param key
     * @return
     */
    public boolean exists(String key, String hashKey) {
        return redisson.getMap(key).containsKey(hashKey);
    }

    /**
     * 暴露redisson的RList对象
     *
     * @param key
     * @param <T>
     * @return
     */
    public <T> RList<T> getRList(String key) {
        return redisson.getList(key);
    }

    /**
     * 暴露redisson的List结果
     *
     * @param key
     * @param <T>
     * @return
     */
    public <T> List<T> getLists(String key) {
        return getRList(key);
    }


    /**
     * 暴露redisson的RMap对象
     *
     * @param key
     * @param <K, V>
     * @return
     */
    public <K, V> RMap<K, V> getRMap(String key) {
        return redisson.getMap(key);
    }

    /**
     * 暴露redisson的Lock对象
     *
     * @param key
     * @return
     */
    public RLock getRedisLock(String key) {
        return redisson.getLock(key);
    }

    /**
     * 暴露redisson的连锁 RedissonMultiLock对象
     *
     * @param locks
     * @return
     */
    public RedissonMultiLock getMultiLock(RLock... locks) {
        return new RedissonMultiLock(locks);
    }


    /**
     *  原子的获取某个key递增后的值
     * @param key key
     * @return 更新后的值
     */
    public long incrementAndGet(String key){
        RAtomicLong rAtomicLong = redisson.getAtomicLong(key);
        return rAtomicLong.incrementAndGet();
    }

    /**
     *  原子的获取某个key递增后的值
     * @param key key
     * @return 更新后的值
     */
    public long addAndGet(String key, long value){
        RAtomicLong rAtomicLong = redisson.getAtomicLong(key);
        return rAtomicLong.addAndGet(value);
    }

    public void setRAtomicLong(String key, long value) {
        RAtomicLong rAtomicLong = redisson.getAtomicLong(key);
        rAtomicLong.set(value);
    }

    public RAtomicLong getRAtomicLong(String key) {
        RAtomicLong atomicLong = redisson.getAtomicLong(key);
        return atomicLong;
    }

    /**
     * 初始化原子long 0
     * @param key
     */
    public void atomicSetZero(String key) {
        RAtomicLong rAtomicLong = redisson.getAtomicLong(key);
        rAtomicLong.set(0);
        rAtomicLong.expire(DEFAULT_EXPIRED, TimeUnit.SECONDS);
    }


    @PreDestroy
    public void close() {
        try {
            if (redisson != null) {
                redisson.shutdown();
            }
        } catch (Exception ex) {
            log.error(StrUtil.EMPTY, "RedissonUtil.close", ex);
        }
    }


}

RedisCache:

package com.hbg.common.cache;

import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Component;
import redis.clients.jedis.Jedis;
import redis.clients.jedis.JedisPool;
import redis.clients.jedis.ListPosition;
import redis.clients.jedis.SortingParams;

import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.io.ObjectInputStream;
import java.io.ObjectOutputStream;
import java.util.List;
import java.util.Map;
import java.util.Set;


/**
 * redis 缓存
 *
 * @author cyx
 */

@Component
@Slf4j
public class RedisCache {
    @Autowired
    private JedisPool jedisPool;

    //选择redis库 0-15   默认是0
    private int indexdb = 0;

    public int getIndexdb() {
        return indexdb;
    }

    public void setIndexdb(int indexdb) {
        this.indexdb = indexdb;
    }

    /**
     * <p>
     * 通过key获取储存在redis中的value
     * </p>
     * <p>
     * 并释放连接
     * </p>
     *
     * @param key
     * @return 成功返回value 失败返回null
     */
    public String getStringValue(String key) {
        Jedis jedis = null;
        String value = null;
        try {
            jedis = jedisPool.getResource();
            jedis.select(indexdb);
            value = jedis.get(key);
            log.info(value);
        } catch (Exception e) {

            log.error(e.getMessage());
        } finally {
            returnResource(jedisPool, jedis);
        }
        return value;
    }

    /**
     * <p>
     * 通过key获取储存在redis中的value
     * </p>
     * <p>
     * 并释放连接
     * </p>
     *
     * @param key
     * @return 成功返回value 失败返回null
     */
    public Object getObjectValue(String key) {
        Jedis jedis = null;
        Object obj = null;
        try {
            jedis = jedisPool.getResource();
            jedis.select(indexdb);
            byte[] bytes = jedis.get(key.getBytes());
            if (bytes != null && bytes.length > 0) {
                obj = unserialize(bytes);
            }
        } catch (Exception e) {

            log.error(e.getMessage());
        } finally {
            returnResource(jedisPool, jedis);
        }
        return obj;
    }

    public <T> T getObject(String key) {
        Jedis jedis = null;
        Object obj = null;
        try {
            jedis = jedisPool.getResource();
            jedis.select(indexdb);
            byte[] bytes = jedis.get(key.getBytes());
            if (bytes != null && bytes.length > 0) {
                obj = unserialize(bytes);
            }
        } catch (Exception e) {

            log.error(e.getMessage());
        } finally {
            returnResource(jedisPool, jedis);
        }
        return (T) obj;
    }

    /**
     * <p>
     * 通过key获取储存在redis中的value
     * </p>
     * <p>
     * 并释放连接
     * </p>
     *
     * @param key
     * @return 成功返回value 失败返回null
     */
    public byte[] get(byte[] key) {
        Jedis jedis = null;
        byte[] value = null;
        try {
            jedis = jedisPool.getResource();
            jedis.select(indexdb);
            value = jedis.get(key);
        } catch (Exception e) {

            log.error(e.getMessage());
        } finally {
            returnResource(jedisPool, jedis);
        }
        return value;
    }

    /**
     * <p>
     * 向redis存入key和value,并释放连接资源
     * </p>
     * <p>
     * 如果key已经存在 则覆盖
     * </p>
     *
     * @param key
     * @param value
     * @param seconds 存活时间  秒
     * @return 成功 返回OK 失败返回 0
     */
    public String setStringValue(String key, String value, int seconds) {
        Jedis jedis = null;
        try {
            jedis = jedisPool.getResource();
            jedis.select(indexdb);
            return jedis.setex(key, seconds, value);
        } catch (Exception e) {

            log.error(e.getMessage());
            return "0";
        } finally {
            returnResource(jedisPool, jedis);
        }
    }

    /**
     * <p>
     * 向redis存入key和value,并释放连接资源
     * </p>
     * <p>
     * 如果key已经存在 则覆盖
     * </p>
     *
     * @param key
     * @param value
     * @param seconds 存活时间  秒
     * @return 成功 返回OK 失败返回 0
     */
    public String setObjectValue(String key, Object value, int seconds) {
        Jedis jedis = null;
        try {
            jedis = jedisPool.getResource();
            jedis.select(indexdb);
            return jedis.setex(key.getBytes(), seconds, ObjTOSerialize(value));
        } catch (Exception e) {

            log.error(e.getMessage());
            return "0";
        } finally {
            returnResource(jedisPool, jedis);
        }
    }

    /**
     * <p>
     * 向redis存入key和value,并释放连接资源
     * </p>
     * <p>
     * 如果key已经存在 则覆盖
     * </p>
     *
     * @param key
     * @param value
     * @return 成功 返回OK 失败返回 0
     */
    public String set(byte[] key, byte[] value) {
        Jedis jedis = null;
        try {
            jedis = jedisPool.getResource();
            jedis.select(indexdb);
            return jedis.set(key, value);
        } catch (Exception e) {
            log.error(e.getMessage());
            return "0";
        } finally {
            returnResource(jedisPool, jedis);
        }
    }

    /**
     * <p>
     * 删除指定的key,也可以传入一个包含key的数组
     * </p>
     *
     * @param keys 一个key 也可以使 string 数组
     * @return 返回删除成功的个数
     */
    public Long del(String... keys) {
        Jedis jedis = null;
        try {
            jedis = jedisPool.getResource();
            return jedis.del(keys);
        } catch (Exception e) {

            log.error(e.getMessage());
            return 0L;
        } finally {
            returnResource(jedisPool, jedis);
        }
    }

    /**
     * <p>
     * 删除指定的key,也可以传入一个包含key的数组
     * </p>
     *
     * @param keys 一个key 也可以使 string 数组
     * @return 返回删除成功的个数
     */
    public Long delete(String... keys) {
        Jedis jedis = null;
        try {
            jedis = jedisPool.getResource();
            jedis.select(indexdb);
            return jedis.del(keys);
        } catch (Exception e) {

            log.error(e.getMessage());
            return 0L;
        } finally {
            returnResource(jedisPool, jedis);
        }
    }

    /**
     * <p>
     * 删除指定的key,也可以传入一个包含key的数组
     * </p>
     *
     * @param keys 一个key 也可以使 string 数组
     * @return 返回删除成功的个数
     */
    public Long delete(byte[]... keys) {
        Jedis jedis = null;
        try {
            jedis = jedisPool.getResource();
            jedis.select(indexdb);
            return jedis.del(keys);
        } catch (Exception e) {

            log.error(e.getMessage());
            return 0L;
        } finally {
            returnResource(jedisPool, jedis);
        }
    }

    /**
     * <p>
     * 通过key向指定的value值追加值
     * </p>
     *
     * @param key
     * @param str
     * @return 成功返回 添加后value的长度 失败 返回 添加的 value 的长度 异常返回0L
     */
    public Long append(String key, String str) {
        Jedis jedis = null;
        Long res = null;
        try {
            jedis = jedisPool.getResource();
            res = jedis.append(key, str);
        } catch (Exception e) {

            log.error(e.getMessage());
            return 0L;
        } finally {
            returnResource(jedisPool, jedis);
        }
        return res;
    }

    /**
     * <p>
     * 判断key是否存在
     * </p>
     *
     * @param key
     * @return true OR false
     */
    public Boolean exists(String key) {
        Jedis jedis = null;
        try {
            jedis = jedisPool.getResource();
            return jedis.exists(key);
        } catch (Exception e) {

            log.error(e.getMessage());
            return false;
        } finally {
            returnResource(jedisPool, jedis);
        }
    }

    /**
     * <p>
     * 清空当前数据库中的所有 key,此命令从不失败。
     * </p>
     *
     * @return 总是返回 OK
     */
    public String flushDB() {
        Jedis jedis = null;
        try {
            jedis = jedisPool.getResource();
            return jedis.flushDB();
        } catch (Exception e) {
            log.error(e.getMessage());
        } finally {
            returnResource(jedisPool, jedis);
        }
        return null;
    }

    /**
     * <p>
     * 为给定 key 设置生存时间,当 key 过期时(生存时间为 0 ),它会被自动删除。
     * </p>
     *
     * @param key
     * @param value 过期时间,单位:秒
     * @return 成功返回1 如果存在 和 发生异常 返回 0
     */
    public Long expire(String key, int value) {
        Jedis jedis = null;
        try {
            jedis = jedisPool.getResource();
            jedis.select(indexdb);
            return jedis.expire(key, value);
        } catch (Exception e) {
            log.error(e.getMessage());
            return 0L;
        } finally {
            returnResource(jedisPool, jedis);
        }
    }

    /**
     * <p>
     * 以秒为单位,返回给定 key 的剩余生存时间
     * </p>
     *
     * @param key
     * @return 当 key 不存在时,返回 -2 。当 key 存在但没有设置剩余生存时间时,返回 -1 。否则,以秒为单位,返回 key
     * 的剩余生存时间。 发生异常 返回 0
     */
    public Long ttl(String key) {
        Jedis jedis = null;
        try {
            jedis = jedisPool.getResource();
            jedis.select(indexdb);
            Long ttl = jedis.ttl(key);
            if (ttl < 0L) {
                ttl = 0L;
            }
            return ttl;
        } catch (Exception e) {

            log.error(e.getMessage());
            return 0L;
        } finally {
            returnResource(jedisPool, jedis);
        }
    }

    /**
     * <p>
     * 移除给定 key 的生存时间,将这个 key 从『易失的』(带生存时间 key )转换成『持久的』(一个不带生存时间、永不过期的 key )
     * </p>
     *
     * @param key
     * @return 当生存时间移除成功时,返回 1 .如果 key 不存在或 key 没有设置生存时间,返回 0 , 发生异常 返回 -1
     */
    public Long persist(String key) {
        Jedis jedis = null;
        try {
            jedis = jedisPool.getResource();
            return jedis.persist(key);
        } catch (Exception e) {

            log.error(e.getMessage());
            return -1L;
        } finally {
            returnResource(jedisPool, jedis);
        }
    }

    /**
     * <p>
     * 新增key,并将 key 的生存时间 (以秒为单位)
     * </p>
     *
     * @param key
     * @param seconds 生存时间 单位:秒
     * @param value
     * @return 设置成功时返回 OK 。当 seconds 参数不合法时,返回一个错误。
     */
    public String setex(String key, int seconds, String value) {
        Jedis jedis = null;
        try {
            jedis = jedisPool.getResource();
            return jedis.setex(key, seconds, value);
        } catch (Exception e) {

            log.error(e.getMessage());
        } finally {
            returnResource(jedisPool, jedis);
        }
        return null;
    }

    /**
     * <p>
     * 设置key value,如果key已经存在则返回0,nx==> not exist
     * </p>
     *
     * @param key
     * @param value
     * @return 成功返回1 如果存在 和 发生异常 返回 0
     */
    public Long setnx(String key, String value) {
        Jedis jedis = null;
        try {
            jedis = jedisPool.getResource();
            return jedis.setnx(key, value);
        } catch (Exception e) {

            log.error(e.getMessage());
            return 0L;
        } finally {
            returnResource(jedisPool, jedis);
        }
    }

    /**
     * <p>
     * 将给定 key 的值设为 value ,并返回 key 的旧值(old value)。
     * </p>
     * <p>
     * 当 key 存在但不是字符串类型时,返回一个错误。
     * </p>
     *
     * @param key
     * @param value
     * @return 返回给定 key 的旧值。当 key 没有旧值时,也即是, key 不存在时,返回 nil
     */
    public String getSet(String key, String value) {
        Jedis jedis = null;
        try {
            jedis = jedisPool.getResource();
            return jedis.getSet(key, value);
        } catch (Exception e) {

            log.error(e.getMessage());
        } finally {
            returnResource(jedisPool, jedis);
        }
        return null;
    }

    /**
     * <p>
     * 设置key value并制定这个键值的有效期
     * </p>
     *
     * @param key
     * @param value
     * @param seconds 单位:秒
     * @return 成功返回OK 失败和异常返回null
     */
    public String setex(String key, String value, int seconds) {
        Jedis jedis = null;
        String res = null;
        try {
            jedis = jedisPool.getResource();
            res = jedis.setex(key, seconds, value);
        } catch (Exception e) {

            log.error(e.getMessage());
        } finally {
            returnResource(jedisPool, jedis);
        }
        return res;
    }

    /**
     * <p>
     * 通过key 和offset 从指定的位置开始将原先value替换
     * </p>
     * <p>
     * 下标从0开始,offset表示从offset下标开始替换
     * </p>
     * <p>
     * 如果替换的字符串长度过小则会这样
     * </p>
     * <p>
     * example:
     * </p>
     * <p>
     * value : bigsea@zto.cn
     * </p>
     * <p>
     * str : abc
     * </p>
     * <P>
     * 从下标7开始替换 则结果为
     * </p>
     * <p>
     * RES : bigsea.abc.cn
     * </p>
     *
     * @param key
     * @param str
     * @param offset 下标位置
     * @return 返回替换后 value 的长度
     */
    public Long setrange(String key, String str, int offset) {
        Jedis jedis = null;
        try {
            jedis = jedisPool.getResource();
            return jedis.setrange(key, offset, str);
        } catch (Exception e) {

            log.error(e.getMessage());
            return 0L;
        } finally {
            returnResource(jedisPool, jedis);
        }
    }

    /**
     * <p>
     * 通过批量的key获取批量的value
     * </p>
     *
     * @param keys string数组 也可以是一个key
     * @return 成功返回value的集合, 失败返回null的集合 ,异常返回空
     */
    public List<String> mget(String... keys) {
        Jedis jedis = null;
        List<String> values = null;
        try {
            jedis = jedisPool.getResource();
            values = jedis.mget(keys);
        } catch (Exception e) {

            log.error(e.getMessage());
        } finally {
            returnResource(jedisPool, jedis);
        }
        return values;
    }

    /**
     * <p>
     * 批量的设置key:value,可以一个
     * </p>
     * <p>
     * example:
     * </p>
     * <p>
     * obj.mset(new String[]{"key2","value1","key2","value2"})
     * </p>
     *
     * @param keysvalues
     * @return 成功返回OK 失败 异常 返回 null
     */
    public String mset(String... keysvalues) {
        Jedis jedis = null;
        String res = null;
        try {
            jedis = jedisPool.getResource();
            res = jedis.mset(keysvalues);
        } catch (Exception e) {

            log.error(e.getMessage());
        } finally {
            returnResource(jedisPool, jedis);
        }
        return res;
    }

    /**
     * <p>
     * 批量的设置key:value,可以一个,如果key已经存在则会失败,操作会回滚
     * </p>
     * <p>
     * example:
     * </p>
     * <p>
     * obj.msetnx(new String[]{"key2","value1","key2","value2"})
     * </p>
     *
     * @param keysvalues
     * @return 成功返回1 失败返回0
     */
    public Long msetnx(String... keysvalues) {
        Jedis jedis = null;
        Long res = 0L;
        try {
            jedis = jedisPool.getResource();
            res = jedis.msetnx(keysvalues);
        } catch (Exception e) {

            log.error(e.getMessage());
        } finally {
            returnResource(jedisPool, jedis);
        }
        return res;
    }

    /**
     * <p>
     * 设置key的值,并返回一个旧值
     * </p>
     *
     * @param key
     * @param value
     * @return 旧值 如果key不存在 则返回null
     */
    public String getset(String key, String value) {
        Jedis jedis = null;
        String res = null;
        try {
            jedis = jedisPool.getResource();
            res = jedis.getSet(key, value);
        } catch (Exception e) {

            log.error(e.getMessage());
        } finally {
            returnResource(jedisPool, jedis);
        }
        return res;
    }

    /**
     * <p>
     * 通过下标 和key 获取指定下标位置的 value
     * </p>
     *
     * @param key
     * @param startOffset 开始位置 从0 开始 负数表示从右边开始截取
     * @param endOffset
     * @return 如果没有返回null
     */
    public String getrange(String key, int startOffset, int endOffset) {
        Jedis jedis = null;
        String res = null;
        try {
            jedis = jedisPool.getResource();
            res = jedis.getrange(key, startOffset, endOffset);
        } catch (Exception e) {

            log.error(e.getMessage());
        } finally {
            returnResource(jedisPool, jedis);
        }
        return res;
    }

    /**
     * <p>
     * 通过key 对value进行加值+1操作,当value不是int类型时会返回错误,当key不存在是则value为1
     * </p>
     *
     * @param key
     * @return 加值后的结果
     */
    public Long incr(String key) {
        Jedis jedis = null;
        Long res = null;
        try {
            jedis = jedisPool.getResource();
            res = jedis.incr(key);
        } catch (Exception e) {

            log.error(e.getMessage());
        } finally {
            returnResource(jedisPool, jedis);
        }
        return res;
    }

    /**
     * <p>
     * 通过key给指定的value加值,如果key不存在,则这是value为该值
     * </p>
     *
     * @param key
     * @param integer
     * @return
     */
    public Long incrBy(String key, Long integer) {
        Jedis jedis = null;
        Long res = null;
        try {
            jedis = jedisPool.getResource();
            res = jedis.incrBy(key, integer);
        } catch (Exception e) {

            log.error(e.getMessage());
        } finally {
            returnResource(jedisPool, jedis);
        }
        return res;
    }

    /**
     * <p>
     * 对key的值做减减操作,如果key不存在,则设置key为-1
     * </p>
     *
     * @param key
     * @return
     */
    public Long decr(String key) {
        Jedis jedis = null;
        Long res = null;
        try {
            jedis = jedisPool.getResource();
            res = jedis.decr(key);
        } catch (Exception e) {

            log.error(e.getMessage());
        } finally {
            returnResource(jedisPool, jedis);
        }
        return res;
    }

    /**
     * <p>
     * 减去指定的值
     * </p>
     *
     * @param key
     * @param integer
     * @return
     */
    public Long decrBy(String key, Long integer) {
        Jedis jedis = null;
        Long res = null;
        try {
            jedis = jedisPool.getResource();
            res = jedis.decrBy(key, integer);
        } catch (Exception e) {

            log.error(e.getMessage());
        } finally {
            returnResource(jedisPool, jedis);
        }
        return res;
    }

    /**
     * <p>
     * 通过key获取value值的长度
     * </p>
     *
     * @param key
     * @return 失败返回null
     */
    public Long serlen(String key) {
        Jedis jedis = null;
        Long res = null;
        try {
            jedis = jedisPool.getResource();
            res = jedis.strlen(key);
        } catch (Exception e) {

            log.error(e.getMessage());
        } finally {
            returnResource(jedisPool, jedis);
        }
        return res;
    }

    /**
     * <p>
     * 通过key给field设置指定的值,如果key不存在,则先创建
     * </p>
     *
     * @param key
     * @param field 字段
     * @param value
     * @return 如果存在返回0 异常返回null
     */
    public Long hset(String key, String field, String value) {
        Jedis jedis = null;
        Long res = null;
        try {
            jedis = jedisPool.getResource();
            res = jedis.hset(key, field, value);
        } catch (Exception e) {

            log.error(e.getMessage());
        } finally {
            returnResource(jedisPool, jedis);
        }
        return res;
    }

    /**
     * <p>
     * 通过key给field设置指定的值,如果key不存在则先创建,如果field已经存在,返回0
     * </p>
     *
     * @param key
     * @param field
     * @param value
     * @return
     */
    public Long hsetnx(String key, String field, String value) {
        Jedis jedis = null;
        Long res = null;
        try {
            jedis = jedisPool.getResource();
            res = jedis.hsetnx(key, field, value);
        } catch (Exception e) {

            log.error(e.getMessage());
        } finally {
            returnResource(jedisPool, jedis);
        }
        return res;
    }

    /**
     * <p>
     * 通过key同时设置 hash的多个field
     * </p>
     *
     * @param key
     * @param hash
     * @return 返回OK 异常返回null
     */
    public String hmset(String key, Map<String, String> hash) {
        Jedis jedis = null;
        String res = null;
        try {
            jedis = jedisPool.getResource();
            jedis.select(indexdb);
            res = jedis.hmset(key, hash);
        } catch (Exception e) {

            log.error(e.getMessage());
        } finally {
            returnResource(jedisPool, jedis);
        }
        return res;
    }

    /**
     * <p>
     * 通过key 和 field 获取指定的 value
     * </p>
     *
     * @param key
     * @param field
     * @return 没有返回null
     */
    public String hget(String key, String field) {
        Jedis jedis = null;
        String res = null;
        try {
            jedis = jedisPool.getResource();
            res = jedis.hget(key, field);
        } catch (Exception e) {

            log.error(e.getMessage());
        } finally {
            returnResource(jedisPool, jedis);
        }
        return res;
    }

    /**
     * <p>
     * 通过key 和 fields 获取指定的value 如果没有对应的value则返回null
     * </p>
     *
     * @param key
     * @param fields 可以使 一个String 也可以是 String数组
     * @return
     */
    public List<String> hmget(String key, String... fields) {
        Jedis jedis = null;
        List<String> res = null;
        try {
            jedis = jedisPool.getResource();
            jedis.select(indexdb);
            res = jedis.hmget(key, fields);
        } catch (Exception e) {

            log.error(e.getMessage());
        } finally {
            returnResource(jedisPool, jedis);
        }
        return res;
    }

    /**
     * <p>
     * 通过key给指定的field的value加上给定的值
     * </p>
     *
     * @param key
     * @param field
     * @param value
     * @return
     */
    public Long hincrby(String key, String field, Long value) {
        Jedis jedis = null;
        Long res = null;
        try {
            jedis = jedisPool.getResource();
            res = jedis.hincrBy(key, field, value);
        } catch (Exception e) {

            log.error(e.getMessage());
        } finally {
            returnResource(jedisPool, jedis);
        }
        return res;
    }

    /**
     * <p>
     * 通过key和field判断是否有指定的value存在
     * </p>
     *
     * @param key
     * @param field
     * @return
     */
    public Boolean hexists(String key, String field) {
        Jedis jedis = null;
        Boolean res = false;
        try {
            jedis = jedisPool.getResource();
            res = jedis.hexists(key, field);
        } catch (Exception e) {

            log.error(e.getMessage());
        } finally {
            returnResource(jedisPool, jedis);
        }
        return res;
    }

    /**
     * <p>
     * 通过key返回field的数量
     * </p>
     *
     * @param key
     * @return
     */
    public Long hlen(String key) {
        Jedis jedis = null;
        Long res = null;
        try {
            jedis = jedisPool.getResource();
            res = jedis.hlen(key);
        } catch (Exception e) {

            log.error(e.getMessage());
        } finally {
            returnResource(jedisPool, jedis);
        }
        return res;

    }

    /**
     * <p>
     * 通过key 删除指定的 field
     * </p>
     *
     * @param key
     * @param fields 可以是 一个 field 也可以是 一个数组
     * @return
     */
    public Long hdel(String key, String... fields) {
        Jedis jedis = null;
        Long res = null;
        try {
            jedis = jedisPool.getResource();
            res = jedis.hdel(key, fields);
        } catch (Exception e) {

            log.error(e.getMessage());
        } finally {
            returnResource(jedisPool, jedis);
        }
        return res;
    }

    /**
     * <p>
     * 通过key返回所有的field
     * </p>
     *
     * @param key
     * @return
     */
    public Set<String> hkeys(String key) {
        Jedis jedis = null;
        Set<String> res = null;
        try {
            jedis = jedisPool.getResource();
            res = jedis.hkeys(key);
        } catch (Exception e) {

            log.error(e.getMessage());
        } finally {
            returnResource(jedisPool, jedis);
        }
        return res;
    }

    /**
     * <p>
     * 通过key返回所有和key有关的value
     * </p>
     *
     * @param key
     * @return
     */
    public List<String> hvals(String key) {
        Jedis jedis = null;
        List<String> res = null;
        try {
            jedis = jedisPool.getResource();
            res = jedis.hvals(key);
        } catch (Exception e) {

            log.error(e.getMessage());
        } finally {
            returnResource(jedisPool, jedis);
        }
        return res;
    }

    /**
     * <p>
     * 通过key获取所有的field和value
     * </p>
     *
     * @param key
     * @return
     */
    public Map<String, String> hgetall(String key) {
        Jedis jedis = null;
        Map<String, String> res = null;
        try {
            jedis = jedisPool.getResource();
            jedis.select(indexdb);
            res = jedis.hgetAll(key);
        } catch (Exception e) {
            log.error(e.getMessage());
        } finally {
            returnResource(jedisPool, jedis);
        }
        return res;
    }

    /**
     * <p>
     * 通过key向list头部添加字符串
     * </p>
     *
     * @param key
     * @param strs 可以使一个string 也可以使string数组
     * @return 返回list的value个数
     */
    public Long lpush(String key, String... strs) {
        Jedis jedis = null;
        Long res = null;
        try {
            jedis = jedisPool.getResource();
            jedis.select(indexdb);
            res = jedis.lpush(key, strs);
        } catch (Exception e) {

            log.error(e.getMessage());
        } finally {
            returnResource(jedisPool, jedis);
        }
        return res;
    }

    /**
     * <p>
     * 通过key向list尾部添加字符串
     * </p>
     *
     * @param key
     * @param strs 可以使一个string 也可以使string数组
     * @return 返回list的value个数
     */
    public Long rpush(String key, String... strs) {
        Jedis jedis = null;
        Long res = null;
        try {
            jedis = jedisPool.getResource();
            res = jedis.rpush(key, strs);
        } catch (Exception e) {

            log.error(e.getMessage());
        } finally {
            returnResource(jedisPool, jedis);
        }
        return res;
    }

    /**
     * <p>
     * 通过key在list指定的位置之前或者之后 添加字符串元素
     * </p>
     *
     * @param key
     * @param where LIST_POSITION枚举类型
     * @param pivot list里面的value
     * @param value 添加的value
     * @return
     */
    public Long linsert(String key, ListPosition where, String pivot,
                        String value) {
        Jedis jedis = null;
        Long res = null;
        try {
            jedis = jedisPool.getResource();
            res = jedis.linsert(key, where, pivot, value);
        } catch (Exception e) {

            log.error(e.getMessage());
        } finally {
            returnResource(jedisPool, jedis);
        }
        return res;
    }

    /**
     * <p>
     * 通过key设置list指定下标位置的value
     * </p>
     * <p>
     * 如果下标超过list里面value的个数则报错
     * </p>
     *
     * @param key
     * @param index 从0开始
     * @param value
     * @return 成功返回OK
     */
    public String lset(String key, Long index, String value) {
        Jedis jedis = null;
        String res = null;
        try {
            jedis = jedisPool.getResource();
            res = jedis.lset(key, index, value);
        } catch (Exception e) {

            log.error(e.getMessage());
        } finally {
            returnResource(jedisPool, jedis);
        }
        return res;
    }

    /**
     * <p>
     * 通过key从对应的list中删除指定的count个 和 value相同的元素
     * </p>
     *
     * @param key
     * @param count 当count为0时删除全部
     * @param value
     * @return 返回被删除的个数
     */
    public Long lrem(String key, long count, String value) {
        Jedis jedis = null;
        Long res = null;
        try {
            jedis = jedisPool.getResource();
            res = jedis.lrem(key, count, value);
        } catch (Exception e) {

            log.error(e.getMessage());
        } finally {
            returnResource(jedisPool, jedis);
        }
        return res;
    }

    /**
     * <p>
     * 通过key保留list中从strat下标开始到end下标结束的value值
     * </p>
     *
     * @param key
     * @param start
     * @param end
     * @return 成功返回OK
     */
    public String ltrim(String key, long start, long end) {
        Jedis jedis = null;
        String res = null;
        try {
            jedis = jedisPool.getResource();
            res = jedis.ltrim(key, start, end);
        } catch (Exception e) {

            log.error(e.getMessage());
        } finally {
            returnResource(jedisPool, jedis);
        }
        return res;
    }

    /**
     * <p>
     * 通过key从list的头部删除一个value,并返回该value
     * </p>
     *
     * @param key
     * @return
     */
    synchronized public String lpop(String key) {
        Jedis jedis = null;
        String res = null;
        try {
            jedis = jedisPool.getResource();
            res = jedis.lpop(key);
        } catch (Exception e) {

            log.error(e.getMessage());
        } finally {
            returnResource(jedisPool, jedis);
        }
        return res;
    }

    /**
     * <p>
     * 通过key从list尾部删除一个value,并返回该元素
     * </p>
     *
     * @param key
     * @return
     */
    synchronized public String rpop(String key) {
        Jedis jedis = null;
        String res = null;
        try {
            jedis = jedisPool.getResource();
            jedis.select(indexdb);
            res = jedis.rpop(key);
        } catch (Exception e) {

            log.error(e.getMessage());
        } finally {
            returnResource(jedisPool, jedis);
        }
        return res;
    }

    /**
     * <p>
     * 通过key从一个list的尾部删除一个value并添加到另一个list的头部,并返回该value
     * </p>
     * <p>
     * 如果第一个list为空或者不存在则返回null
     * </p>
     *
     * @param srckey
     * @param dstkey
     * @return
     */
    public String rpoplpush(String srckey, String dstkey) {
        Jedis jedis = null;
        String res = null;
        try {
            jedis = jedisPool.getResource();
            jedis.select(indexdb);
            res = jedis.rpoplpush(srckey, dstkey);
        } catch (Exception e) {

            log.error(e.getMessage());
        } finally {
            returnResource(jedisPool, jedis);
        }
        return res;
    }

    /**
     * <p>
     * 通过key获取list中指定下标位置的value
     * </p>
     *
     * @param key
     * @param index
     * @return 如果没有返回null
     */
    public String lindex(String key, long index) {
        Jedis jedis = null;
        String res = null;
        try {
            jedis = jedisPool.getResource();
            res = jedis.lindex(key, index);
        } catch (Exception e) {

            log.error(e.getMessage());
        } finally {
            returnResource(jedisPool, jedis);
        }
        return res;
    }

    /**
     * <p>
     * 通过key返回list的长度
     * </p>
     *
     * @param key
     * @return
     */
    public Long llen(String key) {
        Jedis jedis = null;
        Long res = null;
        try {
            jedis = jedisPool.getResource();
            res = jedis.llen(key);
        } catch (Exception e) {

            log.error(e.getMessage());
        } finally {
            returnResource(jedisPool, jedis);
        }
        return res;
    }

    /**
     * <p>
     * 通过key获取list指定下标位置的value
     * </p>
     * <p>
     * 如果start 为 0 end 为 -1 则返回全部的list中的value
     * </p>
     *
     * @param key
     * @param start
     * @param end
     * @return
     */
    public List<String> lrange(String key, long start, long end) {
        Jedis jedis = null;
        List<String> res = null;
        try {
            jedis = jedisPool.getResource();
            jedis.select(indexdb);
            res = jedis.lrange(key, start, end);
        } catch (Exception e) {

            log.error(e.getMessage());
        } finally {
            returnResource(jedisPool, jedis);
        }
        return res;
    }

    /**
     * <p>
     * 将列表 key 下标为 index 的元素的值设置为 value
     * </p>
     *
     * @param key
     * @param index
     * @param value
     * @return 操作成功返回 ok ,否则返回错误信息
     */
    public String lset(String key, long index, String value) {
        Jedis jedis = null;
        try {
            jedis = jedisPool.getResource();
            return jedis.lset(key, index, value);
        } catch (Exception e) {

            log.error(e.getMessage());
        } finally {
            returnResource(jedisPool, jedis);
        }
        return null;
    }

    /**
     * <p>
     * 返回给定排序后的结果
     * </p>
     *
     * @param key
     * @param sortingParameters
     * @return 返回列表形式的排序结果
     */
    public List<String> sort(String key, SortingParams sortingParameters) {
        Jedis jedis = null;
        try {
            jedis = jedisPool.getResource();
            return jedis.sort(key, sortingParameters);
        } catch (Exception e) {

            log.error(e.getMessage());
        } finally {
            returnResource(jedisPool, jedis);
        }
        return null;
    }

    /**
     * <p>
     * 返回排序后的结果,排序默认以数字作为对象,值被解释为双精度浮点数,然后进行比较。
     * </p>
     *
     * @param key
     * @return 返回列表形式的排序结果
     */
    public List<String> sort(String key) {
        Jedis jedis = null;
        try {
            jedis = jedisPool.getResource();
            return jedis.sort(key);
        } catch (Exception e) {

            log.error(e.getMessage());
        } finally {
            returnResource(jedisPool, jedis);
        }
        return null;
    }

    /**
     * <p>
     * 通过key向指定的set中添加value
     * </p>
     *
     * @param key
     * @param members 可以是一个String 也可以是一个String数组
     * @return 添加成功的个数
     */
    public Long sadd(String key, String... members) {
        Jedis jedis = null;
        Long res = null;
        try {
            jedis = jedisPool.getResource();
            res = jedis.sadd(key, members);
        } catch (Exception e) {

            log.error(e.getMessage());
        } finally {
            returnResource(jedisPool, jedis);
        }
        return res;
    }

    /**
     * <p>
     * 通过key删除set中对应的value值
     * </p>
     *
     * @param key
     * @param members 可以是一个String 也可以是一个String数组
     * @return 删除的个数
     */
    public Long srem(String key, String... members) {
        Jedis jedis = null;
        Long res = null;
        try {
            jedis = jedisPool.getResource();
            res = jedis.srem(key, members);
        } catch (Exception e) {

            log.error(e.getMessage());
        } finally {
            returnResource(jedisPool, jedis);
        }
        return res;
    }

    /**
     * <p>
     * 通过key随机删除一个set中的value并返回该值
     * </p>
     *
     * @param key
     * @return
     */
    public String spop(String key) {
        Jedis jedis = null;
        String res = null;
        try {
            jedis = jedisPool.getResource();
            res = jedis.spop(key);
        } catch (Exception e) {

            log.error(e.getMessage());
        } finally {
            returnResource(jedisPool, jedis);
        }
        return res;
    }

    /**
     * <p>
     * 通过key获取set中的差集
     * </p>
     * <p>
     * 以第一个set为标准
     * </p>
     *
     * @param keys 可以使一个string 则返回set中所有的value 也可以是string数组
     * @return
     */
    public Set<String> sdiff(String... keys) {
        Jedis jedis = null;
        Set<String> res = null;
        try {
            jedis = jedisPool.getResource();
            res = jedis.sdiff(keys);
        } catch (Exception e) {

            log.error(e.getMessage());
        } finally {
            returnResource(jedisPool, jedis);
        }
        return res;
    }

    /**
     * <p>
     * 通过key获取set中的差集并存入到另一个key中
     * </p>
     * <p>
     * 以第一个set为标准
     * </p>
     *
     * @param dstkey 差集存入的key
     * @param keys   可以使一个string 则返回set中所有的value 也可以是string数组
     * @return
     */
    public Long sdiffstore(String dstkey, String... keys) {
        Jedis jedis = null;
        Long res = null;
        try {
            jedis = jedisPool.getResource();
            res = jedis.sdiffstore(dstkey, keys);
        } catch (Exception e) {

            log.error(e.getMessage());
        } finally {
            returnResource(jedisPool, jedis);
        }
        return res;
    }

    /**
     * <p>
     * 通过key获取指定set中的交集
     * </p>
     *
     * @param keys 可以使一个string 也可以是一个string数组
     * @return
     */
    public Set<String> sinter(String... keys) {
        Jedis jedis = null;
        Set<String> res = null;
        try {
            jedis = jedisPool.getResource();
            res = jedis.sinter(keys);
        } catch (Exception e) {

            log.error(e.getMessage());
        } finally {
            returnResource(jedisPool, jedis);
        }
        return res;
    }

    /**
     * <p>
     * 通过key获取指定set中的交集 并将结果存入新的set中
     * </p>
     *
     * @param dstkey
     * @param keys   可以使一个string 也可以是一个string数组
     * @return
     */
    public Long sinterstore(String dstkey, String... keys) {
        Jedis jedis = null;
        Long res = null;
        try {
            jedis = jedisPool.getResource();
            res = jedis.sinterstore(dstkey, keys);
        } catch (Exception e) {

            log.error(e.getMessage());
        } finally {
            returnResource(jedisPool, jedis);
        }
        return res;
    }

    /**
     * <p>
     * 通过key返回所有set的并集
     * </p>
     *
     * @param keys 可以使一个string 也可以是一个string数组
     * @return
     */
    public Set<String> sunion(String... keys) {
        Jedis jedis = null;
        Set<String> res = null;
        try {
            jedis = jedisPool.getResource();
            res = jedis.sunion(keys);
        } catch (Exception e) {

            log.error(e.getMessage());
        } finally {
            returnResource(jedisPool, jedis);
        }
        return res;
    }

    /**
     * <p>
     * 通过key返回所有set的并集,并存入到新的set中
     * </p>
     *
     * @param dstkey
     * @param keys   可以使一个string 也可以是一个string数组
     * @return
     */
    public Long sunionstore(String dstkey, String... keys) {
        Jedis jedis = null;
        Long res = null;
        try {
            jedis = jedisPool.getResource();
            res = jedis.sunionstore(dstkey, keys);
        } catch (Exception e) {

            log.error(e.getMessage());
        } finally {
            returnResource(jedisPool, jedis);
        }
        return res;
    }

    /**
     * <p>
     * 通过key将set中的value移除并添加到第二个set中
     * </p>
     *
     * @param srckey 需要移除的
     * @param dstkey 添加的
     * @param member set中的value
     * @return
     */
    public Long smove(String srckey, String dstkey, String member) {
        Jedis jedis = null;
        Long res = null;
        try {
            jedis = jedisPool.getResource();
            res = jedis.smove(srckey, dstkey, member);
        } catch (Exception e) {

            log.error(e.getMessage());
        } finally {
            returnResource(jedisPool, jedis);
        }
        return res;
    }

    /**
     * <p>
     * 通过key获取set中value的个数
     * </p>
     *
     * @param key
     * @return
     */
    public Long scard(String key) {
        Jedis jedis = null;
        Long res = null;
        try {
            jedis = jedisPool.getResource();
            res = jedis.scard(key);
        } catch (Exception e) {

            log.error(e.getMessage());
        } finally {
            returnResource(jedisPool, jedis);
        }
        return res;
    }

    /**
     * <p>
     * 通过key判断value是否是set中的元素
     * </p>
     *
     * @param key
     * @param member
     * @return
     */
    public Boolean sismember(String key, String member) {
        Jedis jedis = null;
        Boolean res = null;
        try {
            jedis = jedisPool.getResource();
            res = jedis.sismember(key, member);
        } catch (Exception e) {

            log.error(e.getMessage());
        } finally {
            returnResource(jedisPool, jedis);
        }
        return res;
    }

    /**
     * <p>
     * 通过key获取set中随机的value,不删除元素
     * </p>
     *
     * @param key
     * @return
     */
    public String srandmember(String key) {
        Jedis jedis = null;
        String res = null;
        try {
            jedis = jedisPool.getResource();
            res = jedis.srandmember(key);
        } catch (Exception e) {

            log.error(e.getMessage());
        } finally {
            returnResource(jedisPool, jedis);
        }
        return res;
    }

    /**
     * <p>
     * 通过key获取set中所有的value
     * </p>
     *
     * @param key
     * @return
     */
    public Set<String> smembers(String key) {
        Jedis jedis = null;
        Set<String> res = null;
        try {
            jedis = jedisPool.getResource();
            res = jedis.smembers(key);
        } catch (Exception e) {

            log.error(e.getMessage());
        } finally {
            returnResource(jedisPool, jedis);
        }
        return res;
    }

    /**
     * <p>
     * 通过key向zset中添加value,score,其中score就是用来排序的
     * </p>
     * <p>
     * 如果该value已经存在则根据score更新元素
     * </p>
     *
     * @param key
     * @param score
     * @param member
     * @return
     */
    public Long zadd(String key, double score, String member) {
        Jedis jedis = null;
        Long res = null;
        try {
            jedis = jedisPool.getResource();
            res = jedis.zadd(key, score, member);
        } catch (Exception e) {

            log.error(e.getMessage());
        } finally {
            returnResource(jedisPool, jedis);
        }
        return res;
    }

    /**
     * <p>
     * 返回有序集 key 中,指定区间内的成员。min=0,max=-1代表所有元素
     * </p>
     *
     * @param key
     * @param min
     * @param max
     * @return 指定区间内的有序集成员的列表。
     */
    public Set<String> zrange(String key, long min, long max) {
        Jedis jedis = null;
        try {
            jedis = jedisPool.getResource();
            return jedis.zrange(key, min, max);
        } catch (Exception e) {

            log.error(e.getMessage());
        } finally {
            returnResource(jedisPool, jedis);
        }
        return null;
    }

    /**
     * <p>
     * 统计有序集 key 中,值在 min 和 max 之间的成员的数量
     * </p>
     *
     * @param key
     * @param min
     * @param max
     * @return 值在 min 和 max 之间的成员的数量。异常返回0
     */
    public Long zcount(String key, double min, double max) {
        Jedis jedis = null;
        try {
            jedis = jedisPool.getResource();
            return jedis.zcount(key, min, max);
        } catch (Exception e) {

            log.error(e.getMessage());
            return 0L;
        } finally {
            returnResource(jedisPool, jedis);
        }

    }

    /**
     * <p>
     * 为哈希表 key 中的域 field 的值加上增量 increment 。增量也可以为负数,相当于对给定域进行减法操作。 如果 key
     * 不存在,一个新的哈希表被创建并执行 HINCRBY 命令。如果域 field 不存在,那么在执行命令前,域的值被初始化为 0 。
     * 对一个储存字符串值的域 field 执行 HINCRBY 命令将造成一个错误。本操作的值被限制在 64 位(bit)有符号数字表示之内。
     * </p>
     * <p>
     * 将名称为key的hash中field的value增加integer
     * </p>
     *
     * @param key
     * @param value
     * @param increment
     * @return 执行 HINCRBY 命令之后,哈希表 key 中域 field的值。异常返回0
     */
    public Long hincrBy(String key, String value, long increment) {
        Jedis jedis = null;
        try {
            jedis = jedisPool.getResource();
            return jedis.hincrBy(key, value, increment);
        } catch (Exception e) {
            log.error(e.getMessage());
            return 0L;
        } finally {
            returnResource(jedisPool, jedis);
        }

    }

    /**
     * <p>
     * 通过key删除在zset中指定的value
     * </p>
     *
     * @param key
     * @param members 可以使一个string 也可以是一个string数组
     * @return
     */
    public Long zrem(String key, String... members) {
        Jedis jedis = null;
        Long res = null;
        try {
            jedis = jedisPool.getResource();
            res = jedis.zrem(key, members);
        } catch (Exception e) {

            log.error(e.getMessage());
        } finally {
            returnResource(jedisPool, jedis);
        }
        return res;
    }

    /**
     * <p>
     * 通过key增加该zset中value的score的值
     * </p>
     *
     * @param key
     * @param score
     * @param member
     * @return
     */
    public Double zincrby(String key, double score, String member) {
        Jedis jedis = null;
        Double res = null;
        try {
            jedis = jedisPool.getResource();
            res = jedis.zincrby(key, score, member);
        } catch (Exception e) {

            log.error(e.getMessage());
        } finally {
            returnResource(jedisPool, jedis);
        }
        return res;
    }

    /**
     * <p>
     * 通过key返回zset中value的排名
     * </p>
     * <p>
     * 下标从小到大排序
     * </p>
     *
     * @param key
     * @param member
     * @return
     */
    public Long zrank(String key, String member) {
        Jedis jedis = null;
        Long res = null;
        try {
            jedis = jedisPool.getResource();
            res = jedis.zrank(key, member);
        } catch (Exception e) {

            log.error(e.getMessage());
        } finally {
            returnResource(jedisPool, jedis);
        }
        return res;
    }

    /**
     * <p>
     * 通过key返回zset中value的排名
     * </p>
     * <p>
     * 下标从大到小排序
     * </p>
     *
     * @param key
     * @param member
     * @return
     */
    public Long zrevrank(String key, String member) {
        Jedis jedis = null;
        Long res = null;
        try {
            jedis = jedisPool.getResource();
            res = jedis.zrevrank(key, member);
        } catch (Exception e) {

            log.error(e.getMessage());
        } finally {
            returnResource(jedisPool, jedis);
        }
        return res;
    }

    /**
     * <p>
     * 通过key将获取score从start到end中zset的value
     * </p>
     * <p>
     * socre从大到小排序
     * </p>
     * <p>
     * 当start为0 end为-1时返回全部
     * </p>
     *
     * @param key
     * @param start
     * @param end
     * @return
     */
    public Set<String> zrevrange(String key, long start, long end) {
        Jedis jedis = null;
        Set<String> res = null;
        try {
            jedis = jedisPool.getResource();
            res = jedis.zrevrange(key, start, end);
        } catch (Exception e) {

            log.error(e.getMessage());
        } finally {
            returnResource(jedisPool, jedis);
        }
        return res;
    }

    /**
     * <p>
     * 通过key返回指定score内zset中的value
     * </p>
     *
     * @param key
     * @param max
     * @param min
     * @return
     */
    public Set<String> zrangebyscore(String key, String max, String min) {
        Jedis jedis = null;
        Set<String> res = null;
        try {
            jedis = jedisPool.getResource();
            res = jedis.zrevrangeByScore(key, max, min);
        } catch (Exception e) {

            log.error(e.getMessage());
        } finally {
            returnResource(jedisPool, jedis);
        }
        return res;
    }

    /**
     * <p>
     * 通过key返回指定score内zset中的value
     * </p>
     *
     * @param key
     * @param max
     * @param min
     * @return
     */
    public Set<String> zrangeByScore(String key, double max, double min) {
        Jedis jedis = null;
        Set<String> res = null;
        try {
            jedis = jedisPool.getResource();
            res = jedis.zrevrangeByScore(key, max, min);
        } catch (Exception e) {

            log.error(e.getMessage());
        } finally {
            returnResource(jedisPool, jedis);
        }
        return res;
    }

    /**
     * <p>
     * 返回指定区间内zset中value的数量
     * </p>
     *
     * @param key
     * @param min
     * @param max
     * @return
     */
    public Long zcount(String key, String min, String max) {
        Jedis jedis = null;
        Long res = null;
        try {
            jedis = jedisPool.getResource();
            res = jedis.zcount(key, min, max);
        } catch (Exception e) {

            log.error(e.getMessage());
        } finally {
            returnResource(jedisPool, jedis);
        }
        return res;
    }

    /**
     * <p>
     * 通过key返回zset中的value个数
     * </p>
     *
     * @param key
     * @return
     */
    public Long zcard(String key) {
        Jedis jedis = null;
        Long res = null;
        try {
            jedis = jedisPool.getResource();
            res = jedis.zcard(key);
        } catch (Exception e) {

            log.error(e.getMessage());
        } finally {
            returnResource(jedisPool, jedis);
        }
        return res;
    }

    /**
     * <p>
     * 通过key获取zset中value的score值
     * </p>
     *
     * @param key
     * @param member
     * @return
     */
    public Double zscore(String key, String member) {
        Jedis jedis = null;
        Double res = null;
        try {
            jedis = jedisPool.getResource();
            res = jedis.zscore(key, member);
        } catch (Exception e) {

            log.error(e.getMessage());
        } finally {
            returnResource(jedisPool, jedis);
        }
        return res;
    }

    /**
     * <p>
     * 通过key删除给定区间内的元素
     * </p>
     *
     * @param key
     * @param start
     * @param end
     * @return
     */
    public Long zremrangeByRank(String key, long start, long end) {
        Jedis jedis = null;
        Long res = null;
        try {
            jedis = jedisPool.getResource();
            res = jedis.zremrangeByRank(key, start, end);
        } catch (Exception e) {

            log.error(e.getMessage());
        } finally {
            returnResource(jedisPool, jedis);
        }
        return res;
    }

    /**
     * <p>
     * 通过key删除指定score内的元素
     * </p>
     *
     * @param key
     * @param start
     * @param end
     * @return
     */
    public Long zremrangeByScore(String key, double start, double end) {
        Jedis jedis = null;
        Long res = null;
        try {
            jedis = jedisPool.getResource();
            res = jedis.zremrangeByScore(key, start, end);
        } catch (Exception e) {

            log.error(e.getMessage());
        } finally {
            returnResource(jedisPool, jedis);
        }
        return res;
    }

    /**
     * <p>
     * 返回满足pattern表达式的所有key
     * </p>
     * <p>
     * keys(*)
     * </p>
     * <p>
     * 返回所有的key
     * </p>
     *
     * @param pattern
     * @return
     */
    public Set<String> keys(String pattern) {
        Jedis jedis = null;
        Set<String> res = null;
        try {
            jedis = jedisPool.getResource();
            res = jedis.keys(pattern);
        } catch (Exception e) {

            log.error(e.getMessage());
        } finally {
            returnResource(jedisPool, jedis);
        }
        return res;
    }

    public Set<String> keysBySelect(String pattern, int database) {
        Jedis jedis = null;
        Set<String> res = null;
        try {
            jedis = jedisPool.getResource();
            jedis.select(database);
            res = jedis.keys(pattern);
        } catch (Exception e) {

            log.error(e.getMessage());
        } finally {
            returnResource(jedisPool, jedis);
        }
        return res;
    }


    /**
     * <p>
     * 通过key判断值得类型
     * </p>
     *
     * @param key
     * @return
     */
    public String type(String key) {
        Jedis jedis = null;
        String res = null;
        try {
            jedis = jedisPool.getResource();
            res = jedis.type(key);
        } catch (Exception e) {

            log.error(e.getMessage());
        } finally {
            returnResource(jedisPool, jedis);
        }
        return res;
    }

    /**
     * 序列化对象
     *
     * @param obj
     * @return 对象需实现Serializable接口
     */
    public static byte[] ObjTOSerialize(Object obj) {
        ObjectOutputStream oos = null;
        ByteArrayOutputStream byteOut = null;
        try {
            byteOut = new ByteArrayOutputStream();
            oos = new ObjectOutputStream(byteOut);
            oos.writeObject(obj);
            byteOut.flush();
            oos.flush();
            byte[] bytes = byteOut.toByteArray();
            oos.close();
            byteOut.close();
            return bytes;
        } catch (Exception e) {
        }
        return null;
    }

    /**
     * 反序列化对象
     *
     * @param bytes
     * @return 对象需实现Serializable接口
     */
    public static Object unserialize(byte[] bytes) {
        ByteArrayInputStream bais = null;
        try {
            //反序列化
            bais = new ByteArrayInputStream(bytes);
            ObjectInputStream ois = new ObjectInputStream(bais);
            return ois.readObject();
        } catch (Exception e) {
        }
        return null;
    }

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

    // public static RedisUtil getRu() {
    // return ru;
    // }
    //
    // public static void setRu(RedisUtil ru) {
    // RedisUtil.ru = ru;
    // }

}

 

SpringCacheConfig:
package com.hbg.common.cache;

import com.hbg.common.constants.RedisKeyConstant;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.cache.CacheManager;
import org.springframework.cache.annotation.CachingConfigurerSupport;
import org.springframework.cache.annotation.EnableCaching;
import org.springframework.cache.interceptor.*;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.data.redis.cache.RedisCacheConfiguration;
import org.springframework.data.redis.cache.RedisCacheManager;
import org.springframework.data.redis.cache.RedisCacheWriter;
import org.springframework.data.redis.connection.RedisConnectionFactory;
import org.springframework.data.redis.core.RedisTemplate;
import org.springframework.data.redis.serializer.RedisSerializationContext;
import org.springframework.data.redis.serializer.StringRedisSerializer;

import java.time.Duration;

/**
 * @author zxf
 * @date 2020/11/5 16:49
 */
@Configuration
@EnableCaching
public class SpringCacheConfig extends CachingConfigurerSupport {

    @Autowired
    private RedisTemplate<String, Object> redisTemplate;

    @Autowired
    private CacheManager goodsDetailCacheManager;

    @Autowired
    private CacheManager defaultCacheManager;

    @Bean(name = "goodsCacheResolver")
    public CacheResolver goodsCacheResolver() {
        return new SimpleCacheResolver(goodsDetailCacheManager);
    }

    @Override
    @Bean(name = "defaultCacheResolver")
    public CacheResolver cacheResolver() {
        return new SimpleCacheResolver(defaultCacheManager);
    }

    @Bean
    @Override
    public CacheErrorHandler errorHandler() {
        // 用于捕获从Cache中进行CRUD时的异常的回调处理器。
        return new SimpleCacheErrorHandler();
    }

    /**
     * 自定义生成redis-key
     *
     * @return
     */
/*    @Override
    @Bean
    public KeyGenerator keyGenerator() {
        return new SimpleKeyGenerator();
    }*/

    /**
     * 商品详情用的缓存管理器
     * @param redisConnectionFactory
     * @return
     */
    @Bean
    public CacheManager goodsDetailCacheManager(RedisConnectionFactory redisConnectionFactory) {
        return this.goodsDetailCacheManager(redisConnectionFactory, 30L);
    }


    @Bean
    public CacheManager defaultCacheManager(RedisConnectionFactory redisConnectionFactory) {
        return this.goodsDetailCacheManager(redisConnectionFactory, 24*60L);
    }

    /**
     * 配置缓存管理器
     * @param redisConnectionFactory
     * @param minutes
     * @return
     */
    private CacheManager goodsDetailCacheManager(RedisConnectionFactory redisConnectionFactory, long minutes) {
        //缓存配置对象
        RedisCacheConfiguration redisCacheConfiguration = RedisCacheConfiguration.defaultCacheConfig();

        //设置缓存的默认超时时间:30分钟
        redisCacheConfiguration = redisCacheConfiguration.entryTtl(Duration.ofMinutes(minutes))
                //如果是空值,不缓存
                .disableCachingNullValues()
                //设置key序列化器
                .serializeKeysWith(RedisSerializationContext.SerializationPair.fromSerializer(new StringRedisSerializer()))
                //设置value序列化器
                .serializeValuesWith(RedisSerializationContext.SerializationPair.fromSerializer(redisTemplate.getValueSerializer()));

        return RedisCacheManager
                .builder(RedisCacheWriter.nonLockingRedisCacheWriter(redisConnectionFactory))
                .cacheDefaults(redisCacheConfiguration).build();
    }
}

 

 

 

 

 

 

 

 

package com.hbg.common.cache;

import com.hbg.common.constants.RedisKeyConstant;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.cache.CacheManager;
import org.springframework.cache.annotation.CachingConfigurerSupport;
import org.springframework.cache.annotation.EnableCaching;
import org.springframework.cache.interceptor.*;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.data.redis.cache.RedisCacheConfiguration;
import org.springframework.data.redis.cache.RedisCacheManager;
import org.springframework.data.redis.cache.RedisCacheWriter;
import org.springframework.data.redis.connection.RedisConnectionFactory;
import org.springframework.data.redis.core.RedisTemplate;
import org.springframework.data.redis.serializer.RedisSerializationContext;
import org.springframework.data.redis.serializer.StringRedisSerializer;

import java.time.Duration;

/**
 * @author zxf
 * @date 2020/11/5 16:49
 */
@Configuration
@EnableCaching
public class SpringCacheConfig extends CachingConfigurerSupport {

@Autowired
private RedisTemplate<String, Object> redisTemplate;

@Autowired
private CacheManager goodsDetailCacheManager;

@Autowired
private CacheManager defaultCacheManager;

@Bean(name = "goodsCacheResolver")
public CacheResolver goodsCacheResolver() {
return new SimpleCacheResolver(goodsDetailCacheManager);
    }

@Override
    @Bean(name = "defaultCacheResolver")
public CacheResolver cacheResolver() {
return new SimpleCacheResolver(defaultCacheManager);
    }

@Bean
    @Override
public CacheErrorHandler errorHandler() {
// 用于捕获从Cache中进行CRUD时的异常的回调处理器。
return new SimpleCacheErrorHandler();
    }

/**
     * 自定义生成redis-key
     *
     * @return
*/
/*    @Override
    @Bean
    public KeyGenerator keyGenerator() {
        return new SimpleKeyGenerator();
    }*/

    /**
     * 商品详情用的缓存管理器
     * @param redisConnectionFactory
* @return
*/
@Bean
public CacheManager goodsDetailCacheManager(RedisConnectionFactory redisConnectionFactory) {
return this.goodsDetailCacheManager(redisConnectionFactory, 30L);
    }


@Bean
public CacheManager defaultCacheManager(RedisConnectionFactory redisConnectionFactory) {
return this.goodsDetailCacheManager(redisConnectionFactory, 24*60L);
    }

/**
     * 配置缓存管理器
     * @param redisConnectionFactory
* @param minutes
* @return
*/
private CacheManager goodsDetailCacheManager(RedisConnectionFactory redisConnectionFactory, long minutes) {
//缓存配置对象
RedisCacheConfiguration redisCacheConfiguration = RedisCacheConfiguration.defaultCacheConfig();

//设置缓存的默认超时时间:30分钟
redisCacheConfiguration = redisCacheConfiguration.entryTtl(Duration.ofMinutes(minutes))
//如果是空值,不缓存
.disableCachingNullValues()
//设置key序列化器
.serializeKeysWith(RedisSerializationContext.SerializationPair.fromSerializer(new StringRedisSerializer()))
//设置value序列化器
.serializeValuesWith(RedisSerializationContext.SerializationPair.fromSerializer(redisTemplate.getValueSerializer()));

return RedisCacheManager
                .builder(RedisCacheWriter.nonLockingRedisCacheWriter(redisConnectionFactory))
                .cacheDefaults(redisCacheConfiguration).build();
    }
}