实用Redis操作类

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import com.yr.phoenix.utils.SerializeUtil;import org.slf4j.Logger;import org.slf4j.LoggerFactory;import org.springframework.beans.factory.annotation.Autowired;import org.springframework.stereotype.Component;import redis.clients.jedis.BinaryClient;import redis.clients.jedis.Jedis;import redis.clients.jedis.JedisPool;import java.util.List;import java.util.Map;import java.util.Set;/** * \* Created with IntelliJ IDEA. * \* User: yr * \* Date: 2017/9/14 * \* Time: 上午10:57 * \* To change this template use File | Settings | File Templates. * \* Description: * \ */@Componentpublic class RedisClient {    private Logger logger = LoggerFactory.getLogger(this.getClass());    @Autowired    private JedisPool jedisPool;    /*** <p>Description: 返回资源 </p>     * @author yepengjun     * @date  2017年9月14日     * @param     */    public  void returnResource(Jedis jedis) {        if (jedis != null) {            jedis.close();        }    }    /*** <p>Description: 获取jedis 实例</p>     * @author yepengjun     * @date  2017年9月14日     * @param     */    public Jedis getJedis() throws Exception {        Jedis jedis = jedisPool.getResource();        return jedis;    }    /*** <p>Description: 得到值</p>     * @author yepengjun     * @date  2017年9月14日     * @param key     */    public String get(String key){        String value = null;        Jedis jedis = null;        try {            jedis= getJedis();            value = jedis.get(key);        } catch(Exception e){            logger.error("RedisClient get :{}",e);        } finally {            returnResource(jedis);        }        return value;    }    /*** <p>Description: 设置键值</p>     * @author yepengjun     * @date  2017年9月14日     * @param key value     */    public  String set(String key,String value){        Jedis jedis = null;        String ans = null;        try {            jedis = getJedis();            ans = jedis.set(key,value);        } catch (Exception e) {            logger.error("RedisClient set :{}",e);        } finally {            //返还到连接池            returnResource(jedis);        }        return ans;    }    /*** <p>Description: 设置键值 并同时设置有效期</p>     * @author yepengjun     * @date  2017年9月14日     * @param key seconds秒数 value     */    public String setex(String key,int seconds,String value){        Jedis jedis = null;        String ans = null;        try {            jedis = getJedis();            ans = jedis.setex(key,seconds,value);        } catch (Exception e) {            logger.error("RedisClient setex :{}",e);        } finally {            //返还到连接池            returnResource(jedis);        }        return ans;    }    /*** <p>Description: </p>     * <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>     * @author yepengjun     * @date  2017年9月14日     * @param     * @return 返回替换后  value 的长度     */    public  Long setrange(String key,String str,int offset){        Jedis jedis = null;        Long result = 0L;        try {            jedis = getJedis();            result = jedis.setrange(key, offset, str);        } catch (Exception e) {            logger.error("RedisClient setrange :{}",e);        } finally {            //返还到连接池            returnResource(jedis);        }        return result;    }    /*** <p>Description: 通过批量的key获取批量的value</p>     * @author yepengjun     * @date  2017年9月14日     * @param     * @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 = getJedis();            values = jedis.mget(keys);        } catch (Exception e) {            logger.error("RedisClient mget :{}",e);        } finally {            //返还到连接池            returnResource(jedis);        }        return values;    }    /*** <p>Description: 批量的设置key:value,可以一个</p>     * <p>obj.mset(new String[]{"key2","value1","key2","value2"})</p>     * @author yepengjun     * @date  2017年9月14日     * @param     * @return     */    public  String mset(String...keysvalues){        Jedis jedis = null;        String ans = null;        try{            jedis = getJedis();            ans = jedis.mset(keysvalues);        }catch (Exception e) {            logger.error("RedisClient mset :{}",e);        } finally {            //返还到连接池            returnResource(jedis);        }        return ans;    }    /*** <p>Description: 通过key向指定的value值追加值</p>     * @author yepengjun     * @date  2017年9月14日     * @param key str 追加字符串     */    public  Long append(String key,String str){        Jedis jedis = null;        Long result = 0L;        try {            jedis = getJedis();            result = jedis.append(key, str);        } catch (Exception e) {            logger.error("RedisClient append :{}",e);        } finally {            //返还到连接池            returnResource(jedis);        }        return  result;    }    /*** <p>Description: 判断key是否存在</p>     * @author yepengjun     * @date  2017年9月14日     * @param     */    public  Boolean exists(String key){        Jedis jedis = null;        boolean result = false;        try {            jedis = getJedis();            result = jedis.exists(key);        } catch (Exception e) {            logger.error("RedisClient exists :{}",e);        } finally {            //返还到连接池            returnResource(jedis);        }        return result;    }    /*** <p>设置key value,如果key已经存在则返回0,nx==> not exist</p>     * @author yepengjun     * @date  2017年9月14日     * @param     * @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;        Long result = 0L;        try {            jedis = getJedis();            result = jedis.setnx(key,value);        } catch (Exception e) {            logger.error("RedisClient setnx :{}",e);        } finally {            //返还到连接池            returnResource(jedis);        }        return result;    }    /*** <p>Description: 查看该键还有多少秒过期</p>     * @author yepengjun     * @date  2017年9月14日     * @param key seconds秒数     */    public Long expire(String key,int seconds){        Jedis jedis = null;        Long res = 0l;        try {            jedis = getJedis();            res = jedis.expire(key, seconds);        } catch (Exception e) {            logger.error("RedisClient expire :{}",e);        } finally {            //返还到连接池            returnResource(jedis);        }        return res;    }    /*** <p>Description: 删除某个键</p>     * @author yepengjun     * @date  2017年9月14日     * @param keys     */    public  Long del(String...keys){        Jedis jedis = null;        Long res = 0L;        try {            jedis = getJedis();            res = jedis.del(keys);        } catch (Exception e) {            logger.error("RedisClient del :{}",e);        } finally {            //返还到连接池            returnResource(jedis);        }        return res;    }    /*** <p>Description: 该key还能存活多久 </p>     * @author yepengjun     * @date  2017年9月14日     * @param key     */    public  Long timetolive(String key){        Jedis jedis = null;        Long res = 0l;        try {            jedis = getJedis();            res = jedis.ttl(key);        } catch (Exception e) {            logger.error("RedisClient timetolive :{}",e);        } finally {            //返还到连接池            returnResource(jedis);        }        return res;    }    /*** <p>Description: 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>     * @author yepengjun     * @date  2017年9月14日     * @param     * @return 成功返回1 失败返回0     */    public  Long msetnx(String...keysvalues){        Jedis jedis = null;        Long res = 0L;        try {            jedis = getJedis();            res =jedis.msetnx(keysvalues);        } catch (Exception e) {            logger.error("RedisClient msetnx :{}",e);        } finally {            returnResource(jedis);        }        return res;    }    /*** <p>Description: 设置key的值,并返回一个旧值</p>     * @author yepengjun     * @date  2017年9月14日     * @param     * @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 = getJedis();            res = jedis.getSet(key, value);        } catch (Exception e) {            logger.error("RedisClient getset :{}",e);        } finally {            returnResource(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 = getJedis();            res = jedis.getrange(key, startOffset, endOffset);        } catch (Exception e) {            logger.error("RedisClient getrange :{}",e);        } finally {            returnResource(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 = getJedis();            res = jedis.incr(key);        } catch (Exception e) {            logger.error("RedisClient incr :{}",e);        } finally {            returnResource(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 = getJedis();            res = jedis.incrBy(key, integer);        } catch (Exception e) {            logger.error("RedisClient incrBy :{}",e);        } finally {            returnResource(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 = getJedis();            res = jedis.decr(key);        } catch (Exception e) {            logger.error("RedisClient decr :{}",e);        } finally {            returnResource(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 = getJedis();            res = jedis.decrBy(key, integer);        } catch (Exception e) {            logger.error("RedisClient decrBy :{}",e);        } finally {            returnResource(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 = getJedis();            res = jedis.strlen(key);        } catch (Exception e) {            logger.error("RedisClient serlen :{}",e);        } finally {            returnResource(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 = getJedis();            res = jedis.hset(key, field, value);        } catch (Exception e) {            logger.error("RedisClient hset :{}",e);        } finally {            returnResource(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 hsetObject(String key,String field,Object value) {        Jedis jedis = null;        Long res = null;        try {            jedis = getJedis();            res = jedis.hset(key.getBytes(), field.getBytes(), SerializeUtil.serialize(value));        } catch (Exception e) {            logger.error("RedisClient hset :{}",e);        } finally {            returnResource(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 = getJedis();            res = jedis.hsetnx(key, field, value);        } catch (Exception e) {            logger.error("RedisClient hsetnx :{}",e);        } finally {            returnResource(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 = getJedis();            res = jedis.hmset(key, hash);        } catch (Exception e) {            logger.error("RedisClient hmset :{}",e);        } finally {            returnResource(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 = getJedis();            res = jedis.hget(key, field);        } catch (Exception e) {            logger.error("RedisClient hget :{}",e);        } finally {            returnResource(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 = getJedis();            res = jedis.hmget(key, fields);        } catch (Exception e) {            logger.error("RedisClient hmget :{}",e);        } finally {            returnResource(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 = getJedis();            res = jedis.hincrBy(key, field, value);        } catch (Exception e) {            logger.error("RedisClient hincrBy :{}",e);        } finally {            returnResource(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 = getJedis();            res = jedis.hexists(key, field);        } catch (Exception e) {            logger.error("RedisClient hexists :{}",e);        } finally {            returnResource(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 = getJedis();            res = jedis.hlen(key);        } catch (Exception e) {            logger.error("RedisClient hlen :{}",e);        } finally {            returnResource(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 = getJedis();            res = jedis.hdel(key, fields);        } catch (Exception e) {            logger.error("RedisClient hdel :{}",e);        } finally {            returnResource(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 = getJedis();            res = jedis.hkeys(key);        } catch (Exception e) {            logger.error("RedisClient hkeys :{}",e);        } finally {            returnResource(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 = getJedis();            res = jedis.hvals(key);        } catch (Exception e) {            logger.error("RedisClient hvals :{}",e);        } finally {            returnResource(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 = getJedis();            res = jedis.hgetAll(key);        } catch (Exception e) {            logger.error("RedisClient hgetall :{}",e);        } finally {            returnResource(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 = getJedis();            res = jedis.lpush(key, strs);        } catch (Exception e) {            logger.error("RedisClient lpush :{}",e);        } finally {            returnResource(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 = getJedis();            res = jedis.rpush(key, strs);        } catch (Exception e) {            logger.error("RedisClient rpush :{}",e);        } finally {            returnResource(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, BinaryClient.LIST_POSITION where,                               String pivot, String value){        Jedis jedis = null;        Long res = null;        try {            jedis = getJedis();            res = jedis.linsert(key, where, pivot, value);        } catch (Exception e) {            logger.error("RedisClient linsert :{}",e);        } finally {            returnResource(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 = getJedis();            res = jedis.lset(key, index, value);        } catch (Exception e) {            logger.error("RedisClient lset :{}",e);        } finally {            returnResource(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 = getJedis();            res = jedis.lrem(key, count, value);        } catch (Exception e) {            logger.error("RedisClient lrem :{}",e);        } finally {            returnResource(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 = getJedis();            res = jedis.ltrim(key, start, end);        } catch (Exception e) {            logger.error("RedisClient ltrim :{}",e);        } finally {            returnResource(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     */    public  String lpop(String key){        Jedis jedis = null;        String res = null;        try {            jedis = getJedis();            res = jedis.lpop(key);        } catch (Exception e) {            logger.error("RedisClient lpop :{}",e);        } finally {            returnResource(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     */    public  String rpop(String key){        Jedis jedis = null;        String res = null;        try {            jedis = getJedis();            res = jedis.rpop(key);        } catch (Exception e) {            logger.error("RedisClient rpop :{}",e);        } finally {            returnResource(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 = getJedis();            res = jedis.rpoplpush(srckey, dstkey);        } catch (Exception e) {            logger.error("RedisClient rpoplpush :{}",e);        } finally {            returnResource(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 = getJedis();            res = jedis.lindex(key, index);        } catch (Exception e) {            logger.error("RedisClient lindex :{}",e);        } finally {            returnResource(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 = getJedis();            res = jedis.llen(key);        } catch (Exception e) {            logger.error("RedisClient llen :{}",e);        } finally {            returnResource(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 = getJedis();            res = jedis.lrange(key, start, end);        } catch (Exception e) {            logger.error("RedisClient lrange :{}",e);        } finally {            returnResource(jedis);        }        return res;    }    /**     * <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 = getJedis();            res = jedis.sadd(key, members);        } catch (Exception e) {            logger.error("RedisClient sadd :{}",e);        } finally {            returnResource(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 = getJedis();            res = jedis.srem(key, members);        } catch (Exception e) {            logger.error("RedisClient srem :{}",e);        } finally {            returnResource(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 = getJedis();            res = jedis.spop(key);        } catch (Exception e) {            logger.error("RedisClient spop :{}",e);        } finally {            returnResource(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 = getJedis();            res = jedis.sdiff(keys);        } catch (Exception e) {            logger.error("RedisClient sdiff :{}",e);        } finally {            returnResource(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 = getJedis();            res = jedis.sdiffstore(dstkey, keys);        } catch (Exception e) {            logger.error("RedisClient sdiffstore :{}",e);        } finally {            returnResource(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 = getJedis();            res = jedis.sinter(keys);        } catch (Exception e) {            logger.error("RedisClient sinter :{}",e);        } finally {            returnResource(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 = getJedis();            res = jedis.sinterstore(dstkey, keys);        } catch (Exception e) {            logger.error("RedisClient sinterstore :{}",e);        } finally {            returnResource(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 = getJedis();            res = jedis.sunion(keys);        } catch (Exception e) {            logger.error("RedisClient sunion :{}",e);        } finally {            returnResource(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 = getJedis();            res = jedis.sunionstore(dstkey, keys);        } catch (Exception e) {            logger.error("RedisClient sunionstore :{}",e);        } finally {            returnResource(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 = getJedis();            res = jedis.smove(srckey, dstkey, member);        } catch (Exception e) {            logger.error("RedisClient smove :{}",e);        } finally {            returnResource(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 = getJedis();            res = jedis.scard(key);        } catch (Exception e) {            logger.error("RedisClient scard :{}",e);        } finally {            returnResource(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 = getJedis();            res = jedis.sismember(key, member);        } catch (Exception e) {            logger.error("RedisClient sismember :{}",e);        } finally {            returnResource(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 = getJedis();            res = jedis.srandmember(key);        } catch (Exception e) {            logger.error("RedisClient srandmember :{}",e);        } finally {            returnResource(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 = getJedis();            res = jedis.smembers(key);        } catch (Exception e) {            logger.error("RedisClient smembers :{}",e);        } finally {            returnResource(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 = getJedis();            res = jedis.zremrangeByRank(key, start, end);        } catch (Exception e) {            logger.error("RedisClient zremrangeByRank :{}",e);        } finally {            returnResource(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 = getJedis();            res = jedis.zremrangeByScore(key, start, end);        } catch (Exception e) {            logger.error("RedisClient zremrangeByScore :{}",e);        } finally {            returnResource(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 = getJedis();            res = jedis.keys(pattern);        } catch (Exception e) {            logger.error("RedisClient keys :{}",e);        } finally {            returnResource(jedis);        }        return res;    }}