Redis 指南（4）- jedis工具类的封装

原文：
http://blog.csdn.net/a67474506/article/details/40660031?utm_source=tuicool

在项目maven的pom.xml文件中添加jedis依赖：

<dependency>   <groupId>redis.clients</groupId>   <artifactId>jedis</artifactId>   <version>2.2.0</version>  </dependency>

添加 RedisUtil 工具类

package com.baozou.oss_persistence.utils;import java.util.List;import java.util.Map;import java.util.Set;import redis.clients.jedis.Jedis;import redis.clients.jedis.JedisPool;import redis.clients.jedis.JedisPoolConfig;import redis.clients.jedis.BinaryClient.LIST_POSITION;/** * redis通用工具类 *  * @author bigSea * */public class RedisUtil {private JedisPool pool = null;/** * 传入ip和端口号构建redis 连接池 * @param ip  ip * @param prot  端口 */public RedisUtil(String ip, int prot) {if (pool == null) {JedisPoolConfig config = new JedisPoolConfig();// 控制一个pool可分配多少个jedis实例，通过pool.getResource()来获取；// 如果赋值为-1，则表示不限制；如果pool已经分配了maxActive个jedis实例，则此时pool的状态为exhausted(耗尽)。//pool2中修改如下：//maxActive  ==>  maxTotal//maxWait ==> maxWaitMillisconfig.setMaxActive(500);//   config.setMaxTotal(500);// 控制一个pool最多有多少个状态为idle(空闲的)的jedis实例。config.setMaxIdle(5);// 表示当borrow(引入)一个jedis实例时，最大的等待时间，如果超过等待时间，则直接抛出JedisConnectionException；config.setMaxWait(1000 * 100);//   config.setMaxWaitMillis(1000 * 100);// 在borrow一个jedis实例时，是否提前进行validate操作；如果为true，则得到的jedis实例均是可用的；config.setTestOnBorrow(true);// pool = new JedisPool(config, "192.168.0.121", 6379, 100000);pool = new JedisPool(config, ip, prot, 100000);}}/** * 通过配置对象 ip 端口 构建连接池 * @param config   配置对象 * @param ip  ip * @param prot  端口 */public RedisUtil(JedisPoolConfig config, String ip, int prot) {if (pool == null) {pool = new JedisPool(config, ip, prot, 10000);}}/** * 通过配置对象 ip 端口 超时时间 构建连接池 * * @param config  配置对象 * @param ip  ip * @param prot  端口 * @param timeout  超时时间 */public RedisUtil(JedisPoolConfig config, String ip, int prot, int timeout) {if (pool == null) {pool = new JedisPool(config, ip, prot, timeout);}}/** * 通过连接池对象 构建一个连接池 *  * @param pool 连接池对象 */public RedisUtil(JedisPool pool) {if (this.pool == null) {this.pool = pool;}}/** * 通过key获取储存在redis中的value * 并释放连接 *  * @param key * @return 成功返回value 失败返回null */public String get(String key) {Jedis jedis = null;String value = null;try {jedis = pool.getResource();value = jedis.get(key);} catch (Exception e) {pool.returnBrokenResource(jedis);e.printStackTrace();} finally {returnResource(pool, jedis);}return value;}/** * 向redis存入key和value,并释放连接资源 * 如果key已经存在 则覆盖 *  * @param key * @param value * @return 成功 返回OK 失败返回 0 */public String set(String key, String value) {Jedis jedis = null;try {jedis = pool.getResource();return jedis.set(key, value);} catch (Exception e) {pool.returnBrokenResource(jedis);e.printStackTrace();return "0";} finally {returnResource(pool, jedis);}}/** * 删除指定的key,也可以传入一个包含key的数组 *  * @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 = pool.getResource();return jedis.del(keys);} catch (Exception e) {pool.returnBrokenResource(jedis);e.printStackTrace();return 0L;} finally {returnResource(pool, jedis);}}/** * 通过key向指定的value值追加值 *  * @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 = pool.getResource();res = jedis.append(key, str);} catch (Exception e) {pool.returnBrokenResource(jedis);e.printStackTrace();return 0L;} finally {returnResource(pool, jedis);}return res;}/** * 判断key是否存在 *  * @param key * @return true OR false */public Boolean exists(String key) {Jedis jedis = null;try {jedis = pool.getResource();return jedis.exists(key);} catch (Exception e) {pool.returnBrokenResource(jedis);e.printStackTrace();return false;} finally {returnResource(pool, jedis);}}/** * 设置key value,如果key已经存在则返回0,nx==> not exist * @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 = pool.getResource();return jedis.setnx(key, value);} catch (Exception e) {pool.returnBrokenResource(jedis);e.printStackTrace();return 0L;} finally {returnResource(pool, jedis);}}/** * 设置key value并制定这个键值的有效期 *  * @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 = pool.getResource();res = jedis.setex(key, seconds, value);} catch (Exception e) {pool.returnBrokenResource(jedis);e.printStackTrace();} finally {returnResource(pool, jedis);}return res;}/** * 通过key 和offset 从指定的位置开始将原先value替换 * 下标从0开始,offset表示从offset下标开始替换 * 如果替换的字符串长度过小则会这样 * example: * value : [e-mail] * str : abc * 从下标7开始替换 则结果为 * RES : bigsea.abc.cn *  * @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 = pool.getResource();return jedis.setrange(key, offset, str);} catch (Exception e) {pool.returnBrokenResource(jedis);e.printStackTrace();return 0L;} finally {returnResource(pool, jedis);}}/** * 通过批量的key获取批量的value *  * @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 = pool.getResource();values = jedis.mget(keys);} catch (Exception e) {pool.returnBrokenResource(jedis);e.printStackTrace();} finally {returnResource(pool, jedis);}return values;}/** * 批量的设置key:value,可以一个 * example: * obj.mset(new String[]{"key2","value1","key2","value2"}) *  * @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 = pool.getResource();res = jedis.mset(keysvalues);} catch (Exception e) {pool.returnBrokenResource(jedis);e.printStackTrace();} finally {returnResource(pool, jedis);}return res;}/** * 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 * example: * obj.msetnx(new String[]{"key2","value1","key2","value2"}) *  * @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 = pool.getResource();res = jedis.msetnx(keysvalues);} catch (Exception e) {pool.returnBrokenResource(jedis);e.printStackTrace();} finally {returnResource(pool, jedis);}return res;}/** * 设置key的值,并返回一个旧值 *  * @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 = pool.getResource();res = jedis.getSet(key, value);} catch (Exception e) {pool.returnBrokenResource(jedis);e.printStackTrace();} finally {returnResource(pool, jedis);}return res;}/** * 通过下标 和key 获取指定下标位置的 value *  * @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 = pool.getResource();res = jedis.getrange(key, startOffset, endOffset);} catch (Exception e) {pool.returnBrokenResource(jedis);e.printStackTrace();} finally {returnResource(pool, jedis);}return res;}/** * 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 *  * @param key * @return 加值后的结果 */public Long incr(String key) {Jedis jedis = null;Long res = null;try {jedis = pool.getResource();res = jedis.incr(key);} catch (Exception e) {pool.returnBrokenResource(jedis);e.printStackTrace();} finally {returnResource(pool, jedis);}return res;}/** * 通过key给指定的value加值,如果key不存在,则这是value为该值 *  * @param key * @param integer * @return */public Long incrBy(String key, Long integer) {Jedis jedis = null;Long res = null;try {jedis = pool.getResource();res = jedis.incrBy(key, integer);} catch (Exception e) {pool.returnBrokenResource(jedis);e.printStackTrace();} finally {returnResource(pool, jedis);}return res;}/** * 对key的值做减减操作,如果key不存在,则设置key为-1 *  * @param key * @return */public Long decr(String key) {Jedis jedis = null;Long res = null;try {jedis = pool.getResource();res = jedis.decr(key);} catch (Exception e) {pool.returnBrokenResource(jedis);e.printStackTrace();} finally {returnResource(pool, jedis);}return res;}/** * 减去指定的值 *  * @param key * @param integer * @return */public Long decrBy(String key, Long integer) {Jedis jedis = null;Long res = null;try {jedis = pool.getResource();res = jedis.decrBy(key, integer);} catch (Exception e) {pool.returnBrokenResource(jedis);e.printStackTrace();} finally {returnResource(pool, jedis);}return res;}/** * 通过key获取value值的长度 *  * @param key * @return 失败返回null */public Long serlen(String key) {Jedis jedis = null;Long res = null;try {jedis = pool.getResource();res = jedis.strlen(key);} catch (Exception e) {pool.returnBrokenResource(jedis);e.printStackTrace();} finally {returnResource(pool, jedis);}return res;}/** * 通过key给field设置指定的值,如果key不存在,则先创建 *  * @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 = pool.getResource();res = jedis.hset(key, field, value);} catch (Exception e) {pool.returnBrokenResource(jedis);e.printStackTrace();} finally {returnResource(pool, jedis);}return res;}/** * 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 *  * @param key * @param field * @param value * @return */public Long hsetnx(String key, String field, String value) {Jedis jedis = null;Long res = null;try {jedis = pool.getResource();res = jedis.hsetnx(key, field, value);} catch (Exception e) {pool.returnBrokenResource(jedis);e.printStackTrace();} finally {returnResource(pool, jedis);}return res;}/** * 通过key同时设置 hash的多个field *  * @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 = pool.getResource();res = jedis.hmset(key, hash);} catch (Exception e) {pool.returnBrokenResource(jedis);e.printStackTrace();} finally {returnResource(pool, jedis);}return res;}/** * 通过key 和 field 获取指定的 value *  * @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 = pool.getResource();res = jedis.hget(key, field);} catch (Exception e) {pool.returnBrokenResource(jedis);e.printStackTrace();} finally {returnResource(pool, jedis);}return res;}/** * 通过key 和 fields 获取指定的value 如果没有对应的value则返回null *  * @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 = pool.getResource();res = jedis.hmget(key, fields);} catch (Exception e) {pool.returnBrokenResource(jedis);e.printStackTrace();} finally {returnResource(pool, jedis);}return res;}/** * 通过key给指定的field的value加上给定的值 *  * @param key * @param field * @param value * @return */public Long hincrby(String key, String field, Long value) {Jedis jedis = null;Long res = null;try {jedis = pool.getResource();res = jedis.hincrBy(key, field, value);} catch (Exception e) {pool.returnBrokenResource(jedis);e.printStackTrace();} finally {returnResource(pool, jedis);}return res;}/** * 通过key和field判断是否有指定的value存在 *  * @param key * @param field * @return */public Boolean hexists(String key, String field) {Jedis jedis = null;Boolean res = false;try {jedis = pool.getResource();res = jedis.hexists(key, field);} catch (Exception e) {pool.returnBrokenResource(jedis);e.printStackTrace();} finally {returnResource(pool, jedis);}return res;}/** * 通过key返回field的数量 *  * @param key * @return */public Long hlen(String key) {Jedis jedis = null;Long res = null;try {jedis = pool.getResource();res = jedis.hlen(key);} catch (Exception e) {pool.returnBrokenResource(jedis);e.printStackTrace();} finally {returnResource(pool, jedis);}return res;}/** * 通过key 删除指定的 field *  * @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 = pool.getResource();res = jedis.hdel(key, fields);} catch (Exception e) {pool.returnBrokenResource(jedis);e.printStackTrace();} finally {returnResource(pool, jedis);}return res;}/** * 通过key返回所有的field *  * @param key * @return */public Set<String> hkeys(String key) {Jedis jedis = null;Set<String> res = null;try {jedis = pool.getResource();res = jedis.hkeys(key);} catch (Exception e) {pool.returnBrokenResource(jedis);e.printStackTrace();} finally {returnResource(pool, jedis);}return res;}/** * 通过key返回所有和key有关的value *  * @param key * @return */public List<String> hvals(String key) {Jedis jedis = null;List<String> res = null;try {jedis = pool.getResource();res = jedis.hvals(key);} catch (Exception e) {pool.returnBrokenResource(jedis);e.printStackTrace();} finally {returnResource(pool, jedis);}return res;}/** * 通过key获取所有的field和value *  * @param key * @return */public Map<String, String> hgetall(String key) {Jedis jedis = null;Map<String, String> res = null;try {jedis = pool.getResource();res = jedis.hgetAll(key);} catch (Exception e) {pool.returnBrokenResource(jedis);e.printStackTrace();} finally {returnResource(pool, 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 = pool.getResource();res = jedis.lpush(key, strs);} catch (Exception e) {pool.returnBrokenResource(jedis);e.printStackTrace();} finally {returnResource(pool, 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 = pool.getResource();res = jedis.rpush(key, strs);} catch (Exception e) {pool.returnBrokenResource(jedis);e.printStackTrace();} finally {returnResource(pool, 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, LIST_POSITION where, String pivot, String value) {Jedis jedis = null;Long res = null;try {jedis = pool.getResource();res = jedis.linsert(key, where, pivot, value);} catch (Exception e) {pool.returnBrokenResource(jedis);e.printStackTrace();} finally {returnResource(pool, 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 = pool.getResource();res = jedis.lset(key, index, value);} catch (Exception e) {pool.returnBrokenResource(jedis);e.printStackTrace();} finally {returnResource(pool, 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 = pool.getResource();res = jedis.lrem(key, count, value);} catch (Exception e) {pool.returnBrokenResource(jedis);e.printStackTrace();} finally {returnResource(pool, 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 = pool.getResource();res = jedis.ltrim(key, start, end);} catch (Exception e) {pool.returnBrokenResource(jedis);e.printStackTrace();} finally {returnResource(pool, 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 = pool.getResource();res = jedis.lpop(key);} catch (Exception e) {pool.returnBrokenResource(jedis);e.printStackTrace();} finally {returnResource(pool, 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 = pool.getResource();res = jedis.rpop(key);} catch (Exception e) {pool.returnBrokenResource(jedis);e.printStackTrace();} finally {returnResource(pool, 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 = pool.getResource();res = jedis.rpoplpush(srckey, dstkey);} catch (Exception e) {pool.returnBrokenResource(jedis);e.printStackTrace();} finally {returnResource(pool, 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 = pool.getResource();res = jedis.lindex(key, index);} catch (Exception e) {pool.returnBrokenResource(jedis);e.printStackTrace();} finally {returnResource(pool, 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 = pool.getResource();res = jedis.llen(key);} catch (Exception e) {pool.returnBrokenResource(jedis);e.printStackTrace();} finally {returnResource(pool, 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 = pool.getResource();res = jedis.lrange(key, start, end);} catch (Exception e) {pool.returnBrokenResource(jedis);e.printStackTrace();} finally {returnResource(pool, 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 = pool.getResource();res = jedis.sadd(key, members);} catch (Exception e) {pool.returnBrokenResource(jedis);e.printStackTrace();} finally {returnResource(pool, 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 = pool.getResource();res = jedis.srem(key, members);} catch (Exception e) {pool.returnBrokenResource(jedis);e.printStackTrace();} finally {returnResource(pool, 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 = pool.getResource();res = jedis.spop(key);} catch (Exception e) {pool.returnBrokenResource(jedis);e.printStackTrace();} finally {returnResource(pool, 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 = pool.getResource();res = jedis.sdiff(keys);} catch (Exception e) {pool.returnBrokenResource(jedis);e.printStackTrace();} finally {returnResource(pool, 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 = pool.getResource();res = jedis.sdiffstore(dstkey, keys);} catch (Exception e) {pool.returnBrokenResource(jedis);e.printStackTrace();} finally {returnResource(pool, 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 = pool.getResource();res = jedis.sinter(keys);} catch (Exception e) {pool.returnBrokenResource(jedis);e.printStackTrace();} finally {returnResource(pool, 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 = pool.getResource();res = jedis.sinterstore(dstkey, keys);} catch (Exception e) {pool.returnBrokenResource(jedis);e.printStackTrace();} finally {returnResource(pool, 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 = pool.getResource();res = jedis.sunion(keys);} catch (Exception e) {pool.returnBrokenResource(jedis);e.printStackTrace();} finally {returnResource(pool, 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 = pool.getResource();res = jedis.sunionstore(dstkey, keys);} catch (Exception e) {pool.returnBrokenResource(jedis);e.printStackTrace();} finally {returnResource(pool, 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 = pool.getResource();res = jedis.smove(srckey, dstkey, member);} catch (Exception e) {pool.returnBrokenResource(jedis);e.printStackTrace();} finally {returnResource(pool, 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 = pool.getResource();res = jedis.scard(key);} catch (Exception e) {pool.returnBrokenResource(jedis);e.printStackTrace();} finally {returnResource(pool, 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 = pool.getResource();res = jedis.sismember(key, member);} catch (Exception e) {pool.returnBrokenResource(jedis);e.printStackTrace();} finally {returnResource(pool, 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 = pool.getResource();res = jedis.srandmember(key);} catch (Exception e) {pool.returnBrokenResource(jedis);e.printStackTrace();} finally {returnResource(pool, 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 = pool.getResource();res = jedis.smembers(key);} catch (Exception e) {pool.returnBrokenResource(jedis);e.printStackTrace();} finally {returnResource(pool, jedis);}return res;}/** * 通过key向zset中添加value,score,其中score就是用来排序的 * 如果该value已经存在则根据score更新元素 *  * @param key * @param scoreMembers * @return */public Long zadd(String key, Map<Double, String> scoreMembers) {Jedis jedis = null;Long res = null;try {jedis = pool.getResource();res = jedis.zadd(key, scoreMembers);} catch (Exception e) {pool.returnBrokenResource(jedis);e.printStackTrace();} finally {returnResource(pool, jedis);}return res;}/** * 通过key向zset中添加value,score,其中score就是用来排序的 * 如果该value已经存在则根据score更新元素 *  * @param key * @param score * @param member * @return */public Long zadd(String key, double score, String member) {Jedis jedis = null;Long res = null;try {jedis = pool.getResource();res = jedis.zadd(key, score, member);} catch (Exception e) {pool.returnBrokenResource(jedis);e.printStackTrace();} finally {returnResource(pool, jedis);}return res;}/** * 通过key删除在zset中指定的value *  * @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 = pool.getResource();res = jedis.zrem(key, members);} catch (Exception e) {pool.returnBrokenResource(jedis);e.printStackTrace();} finally {returnResource(pool, jedis);}return res;}/** * 通过key增加该zset中value的score的值 *  * @param key * @param score * @param member * @return */public Double zincrby(String key, double score, String member) {Jedis jedis = null;Double res = null;try {jedis = pool.getResource();res = jedis.zincrby(key, score, member);} catch (Exception e) {pool.returnBrokenResource(jedis);e.printStackTrace();} finally {returnResource(pool, jedis);}return res;}/** * 通过key返回zset中value的排名 * 下标从小到大排序 *  * @param key * @param member * @return */public Long zrank(String key, String member) {Jedis jedis = null;Long res = null;try {jedis = pool.getResource();res = jedis.zrank(key, member);} catch (Exception e) {pool.returnBrokenResource(jedis);e.printStackTrace();} finally {returnResource(pool, jedis);}return res;}/** * 通过key返回zset中value的排名 * 下标从大到小排序 *  * @param key * @param member * @return */public Long zrevrank(String key, String member) {Jedis jedis = null;Long res = null;try {jedis = pool.getResource();res = jedis.zrevrank(key, member);} catch (Exception e) {pool.returnBrokenResource(jedis);e.printStackTrace();} finally {returnResource(pool, jedis);}return res;}/** * 通过key将获取score从start到end中zset的value * socre从大到小排序 * 当start为0 end为-1时返回全部 *  * @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 = pool.getResource();res = jedis.zrevrange(key, start, end);} catch (Exception e) {pool.returnBrokenResource(jedis);e.printStackTrace();} finally {returnResource(pool, jedis);}return res;}/** * 通过key返回指定score内zset中的value *  * @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 = pool.getResource();res = jedis.zrevrangeByScore(key, max, min);} catch (Exception e) {pool.returnBrokenResource(jedis);e.printStackTrace();} finally {returnResource(pool, jedis);}return res;}/** * 通过key返回指定score内zset中的value *  * @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 = pool.getResource();res = jedis.zrevrangeByScore(key, max, min);} catch (Exception e) {pool.returnBrokenResource(jedis);e.printStackTrace();} finally {returnResource(pool, jedis);}return res;}/** * 返回指定区间内zset中value的数量 *  * @param key * @param min * @param max * @return */public Long zcount(String key, String min, String max) {Jedis jedis = null;Long res = null;try {jedis = pool.getResource();res = jedis.zcount(key, min, max);} catch (Exception e) {pool.returnBrokenResource(jedis);e.printStackTrace();} finally {returnResource(pool, jedis);}return res;}/** * 通过key返回zset中的value个数 *  * @param key * @return */public Long zcard(String key) {Jedis jedis = null;Long res = null;try {jedis = pool.getResource();res = jedis.zcard(key);} catch (Exception e) {pool.returnBrokenResource(jedis);e.printStackTrace();} finally {returnResource(pool, jedis);}return res;}/** * 通过key获取zset中value的score值 *  * @param key * @param member * @return */public Double zscore(String key, String member) {Jedis jedis = null;Double res = null;try {jedis = pool.getResource();res = jedis.zscore(key, member);} catch (Exception e) {pool.returnBrokenResource(jedis);e.printStackTrace();} finally {returnResource(pool, jedis);}return res;}/** * 通过key删除给定区间内的元素 *  * @param key * @param start * @param end * @return */public Long zremrangeByRank(String key, long start, long end) {Jedis jedis = null;Long res = null;try {jedis = pool.getResource();res = jedis.zremrangeByRank(key, start, end);} catch (Exception e) {pool.returnBrokenResource(jedis);e.printStackTrace();} finally {returnResource(pool, jedis);}return res;}/** * 通过key删除指定score内的元素 *  * @param key * @param start * @param end * @return */public Long zremrangeByScore(String key, double start, double end) {Jedis jedis = null;Long res = null;try {jedis = pool.getResource();res = jedis.zremrangeByScore(key, start, end);} catch (Exception e) {pool.returnBrokenResource(jedis);e.printStackTrace();} finally {returnResource(pool, jedis);}return res;}/** * 返回满足pattern表达式的所有key * keys(*) * 返回所有的key *  * @param pattern * @return */public Set<String> keys(String pattern) {Jedis jedis = null;Set<String> res = null;try {jedis = pool.getResource();res = jedis.keys(pattern);} catch (Exception e) {pool.returnBrokenResource(jedis);e.printStackTrace();} finally {returnResource(pool, jedis);}return res;}/** * 通过key判断值得类型 *  * @param key * @return */public String type(String key) {Jedis jedis = null;String res = null;try {jedis = pool.getResource();res = jedis.type(key);} catch (Exception e) {pool.returnBrokenResource(jedis);e.printStackTrace();} finally {returnResource(pool, jedis);}return res;}/** * 返还到连接池 *  * @param pool * @param redis */public static void returnResource(JedisPool pool, Jedis jedis) {if (jedis != null) {pool.returnResource(jedis);}}}