Redis 指南（4）- jedis工具类的封装

原文：
http://blog.youkuaiyun.com/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 ==> maxWaitMillis
config.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 : bigsea@zto.cn
 * 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);
}
}
}