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RedisUtils工具类
发表时间:2023-11-10 15:15:53
RedisUtils工具类

RedisUtils工具类设计

创建一个springboot项目,测试RedisUtils。

1.RedisUtils工具类设计

application.yml

#数据源配置
spring:
  #以下是redis的配置
  redis:
    port: 6379
    password: helloworld
    host: 192.168.128.128
    lettuce:
      pool:
        max-active: 8 # 连接池大连接数(使用负值表示没有限制)
        max-idle: 8 # 连接池中的大空闲连接
        min-idle: 0 # 连接池中的小空闲连接
        max-wait: 1000 # 连接池大阻塞等待时间(使用负值表示没有限制)
      shutdown-timeout: 100   # 关闭超时时间
    database: 0
    connect-timeout: 6000

2.Redis配置类

MyJedisPoolConfig.java

package com.simoniu.db_redis.config;

import org.springframework.beans.factory.annotation.Value;
import org.springframework.stereotype.Component;
import redis.clients.jedis.JedisPool;
import redis.clients.jedis.JedisPoolConfig;

/**
 * jedisPool的配置
 * @author simoniu
 * @time 2020-09-07 11:04
 */
@Component
public class MyJedisPoolConfig {

    private MyJedisPoolConfig() {
    }


    //redis主机的ip
    private static String host;

    //redis主机的端口号
    private static int port;
    //登录口令
    private static String auth;
    /**
     * 连接超时和读写超时(单位ms)
     * 读写超时即:redis对该命令执行时间太长,超过设定时间后就放弃本次请求
     */
    private static int connAndReadWriteTimeOut;


    /**
     * 通过非静态的setter来给静态的属性赋值
     *
     * @param redisHost
     */
    @Value("${spring.redis.host}")
    public void setRedisHost(String redisHost) {
        MyJedisPoolConfig.host = redisHost;
    }

    @Value("${spring.redis.port}")
    public void setRedisPort(int redisPort) {
        MyJedisPoolConfig.port = redisPort;
    }

    @Value("${spring.redis.password}")
    public void setAuth(String redisAuth) {
        MyJedisPoolConfig.auth = redisAuth;
    }

    @Value("${spring.redis.connect-timeout}")
    public void setAuth(int timeOut) {
        MyJedisPoolConfig.connAndReadWriteTimeOut = timeOut;
    }


    private static class innerClass {

        //静态内部类保存一个jedisPool的实例
        private static JedisPool jedisPool = new JedisPool(getConfig(), host, port, connAndReadWriteTimeOut, auth);

        private static JedisPoolConfig getConfig() {
            JedisPoolConfig poolConfig = new JedisPoolConfig();
            //========= jedisPool的一些配置=============================
            poolConfig.setMaxTotal(10000);//最大连接数
            poolConfig.setMaxIdle(50);//最多空闲数
            poolConfig.setMaxWaitMillis(5 * 1000);//当池中没有连接时,最多等待5秒
            return poolConfig;
        }
    }

    /**
     * 返回jedisPool实例
     *
     * @return
     */
    public static JedisPool getJedisPool() {
        return innerClass.jedisPool;
    }

}

3.Redis工具类

RedisUtils.java

package com.simoniu.db_redis.redis;

import com.simoniu.db_redis.config.MyJedisPoolConfig;
import org.springframework.stereotype.Component;
import redis.clients.jedis.Jedis;
import redis.clients.jedis.JedisPool;
import redis.clients.jedis.Pipeline;
import redis.clients.jedis.Tuple;
import java.util.List;
import java.util.Map;
import java.util.Set;

/**
 * 基于jedis的redis操作工具类
 * @author simoniu
 * @time 2019/8/3 22:30
 */

@Component
public final class RedisUtils {

    /*
    除了该工具类提供的方法外,还可以在外面调用getJedis()方法,获取到jedis实例后,调用它原生的api来操作
     */

    /**
     * 获取jedis对象,并选择redis库。jedis默认是0号库,可传入1-16之间的数选择库存放数据
     * 原则上使用一个redis库存放数据,通过特定的key的命令规则来区分不同的数据就行了。
     *
     * @param index redis库号。使用可变参数的目的就是该参数可传可不传。
     * @return 返回jedis对象
     */
    public static Jedis getJedis(int... index) {
        Jedis jedis = MyJedisPoolConfig.getJedisPool().getResource();

        if (index != null && index.length > 0) {
            if (index[0] > 0 && index[0] <= 16){
                jedis.select(index[0]);
            }
        }
        return jedis;
    }

    /*########################  key的操作  ################################*/

    /**
     * 根据pattern返回当前库中的key
     *
     * @param pattern
     * @return
     */
    public static Set<String> keys(String pattern) {
        Jedis jedis = null;
        Set<String> keys = null;
        try {
            jedis = getJedis();
            keys = jedis.keys(pattern);
        }finally {
            if (jedis != null){
                jedis.close();
            }
        }
        return keys;
    }

    /**
     * 删除一个或多个key
     *
     * @param key 一个或多个key
     */
    public static Long del(String... key) {
        Jedis jedis = null;
        Long delNum = 0L;
        try {
            jedis = getJedis();
            delNum =jedis.del(key);
        }finally {
            if (jedis != null){
                jedis.close();
            }
        }
        return delNum;
    }

    /**
     * 批量删除
     * @param keyList 要删除的key的集合
     */
    public static void mdel(List<String> keyList){
        Jedis jedis = getJedis();
        //获取pipeline
        Pipeline pipeline = jedis.pipelined();
        for (String key : keyList) {
            pipeline.del(key);
        }
        //执行结果同步,这样才能保证结果的正确性。实际上不执行该方法也执行了上面的命令,但是结果确不一定完全正确。
        //注意
        pipeline.sync();
        //关闭连接
        jedis.close();
    }

    /**
     * 判断某个key是否还存在
     *
     * @param key key
     * @return
     */
    public static Boolean exists(String key) {
        Jedis jedis = null;
        Boolean flag = false;
        try {
            jedis = getJedis();
            flag = jedis.exists(key);
        }finally {
            if (jedis != null){
                jedis.close();
            }
        }
        return flag;
    }

    /**
     * 设置某个key的过期时间,单位秒
     *
     * @param key key
     * @param seconds 过期时间秒
     */
    public static void expire(String key, int seconds) {
        Jedis jedis = null;
        try {
            jedis = getJedis();
            jedis.expire(key, seconds);
        }finally {
            if (jedis != null){
                jedis.close();
            }
        }
    }

    /**
     * 查看某个key还有几秒过期,-1表示永不过期 ,-2表示已过期
     *
     * @param key key
     * @return
     */
    public static Long timeToLive(String key) {
        Jedis jedis = null;
        Long ttl;
        try {
            jedis = getJedis();
            ttl = jedis.ttl(key);
        }finally {
            if (jedis != null){
                jedis.close();
            }
        }
        return ttl;
    }

    /**
     * 查看某个key对应的value的类型
     *
     * @param key
     * @return
     */
    public static String type(String key) {
        Jedis jedis = null;
        String type = null;
        try {
            jedis = getJedis();
            type = jedis.type(key);
        }finally {
            if (jedis != null){
                jedis.close();
            }
        }
        return type;
    }


    /*########################  string(字符串)的操作  ####################*/

    /**
     * 获取某个key的value,类型要对,只能value是string的才能获取
     *
     * @param key
     * @return
     */
    public static String get(String key) {
        Jedis jedis = null;
        String value = null;
        try {
            jedis = getJedis();
            value = jedis.get(key);
        }finally {
            if (jedis != null){
                jedis.close();
            }
        }
        return value;
    }

    /**
     * 设置某个key的value
     *
     * @param key
     * @param value
     */
    public static void set(String key, String value) {
        Jedis jedis = null;
        try {
            jedis = getJedis();
            jedis.set(key, value);
        }finally {
            if (jedis != null){
                jedis.close();
            }
        }
    }

    /**
     * 字符串后追加内容
     *
     * @param key key
     * @param appendContent 要追加的内容
     */
    public static void append(String key, String appendContent) {
        Jedis jedis = null;
        try {
            jedis = getJedis();
            jedis.append(key, appendContent);
        }finally {
            if (jedis != null){
                jedis.close();
            }
        }
    }

    /**
     * 返回key的value的长度
     *
     * @param key
     * @return
     */
    public static Long strlen(String key) {
        Jedis jedis = null;
        Long strLen = 0L;
        try {
            jedis = getJedis();
            strLen = jedis.strlen(key);
        }finally {
            if (jedis != null){
                jedis.close();
            }
        }
        return strLen;
    }

    /**
     * value 加1 必
     * 须是字符型数字
     * @param key
     * @return 增加后的值
     */
    public static Long incr(String key) {
        Jedis jedis = null;
        Long incrResult = 0L;
        try {
            jedis = getJedis();
            incrResult = jedis.incr(key);
        }finally {
            if (jedis != null){
                jedis.close();
            }
        }
        return incrResult;
    }

    /**
     * value 减1   必须是字符型数字
     *
     * @param key
     * @return
     */
    public static Long decr(String key) {
        Jedis jedis = null;
        Long decrResult = 0L;
        try {
            jedis = getJedis();
            decrResult = jedis.decr(key);
        }finally {
            if (jedis != null){
                jedis.close();
            }
        }
        return decrResult;
    }

    /**
     * value 加increment
     *
     * @param key key
     * @param increment 加几
     * @return
     */
    public static Long incrby(String key, int increment) {
        Jedis jedis = null;
        Long incrByResult = 0L;
        try {
            jedis = getJedis();
            incrByResult = jedis.incrBy(key, increment);
        }finally {
            if (jedis != null){
                jedis.close();
            }
        }
        return incrByResult;
    }

    /**
     * value 减increment
     *
     * @param key
     * @param increment
     * @return
     */
    public static Long decrby(String key, int increment) {
        Jedis jedis = null;
        Long decrByResult = 0L;
        try {
            jedis = getJedis();
            decrByResult = jedis.decrBy(key, increment);
        }finally {
            if (jedis != null){
                jedis.close();
            }
        }
        return decrByResult;
    }

    /**
     * 给某个key设置过期时间和value,成功返回OK
     *
     * @param key key
     * @param seconds 过期时间秒
     * @param value 设置的值
     * @return
     */
    public static String setex(String key, int seconds, String value) {
        Jedis jedis = null;
        String result = null;
        try {
            jedis = getJedis();
            result = jedis.setex(key, seconds, value);
        }finally {
            if (jedis != null){
                jedis.close();
            }
        }
        return result;
    }


    /*########################  list(列表)的操作  #######################*/
    //lpush rpush lpop rpop lrange lindex llen lset

    /**
     * 从左边向列表中添加值
     *
     * @param key key
     * @param str 要添加的值
     */
    public static void lpush(String key, String str) {
        Jedis jedis = null;
        try {
            jedis = getJedis();
            jedis.lpush(key, str);
        }finally {
            if (jedis != null){
                jedis.close();
            }
        }
    }

    /**
     * 从右边向列表中添加值
     *
     * @param key key
     * @param str 要添加的值
     */
    public static void rpush(String key, String str) {
        Jedis jedis = null;
        try {
            jedis = getJedis();
            jedis.rpush(key, str);
        }finally {
            if (jedis != null){
                jedis.close();
            }
        }
    }

    /**
     * 从左边取出一个列表中的值
     *
     * @param key
     * @return
     */
    public static String lpop(String key) {
        Jedis jedis = null;
        String lpop = null;
        try {
            jedis = getJedis();
            lpop = jedis.lpop(key);
        }finally {
            if (jedis != null){
                jedis.close();
            }
        }
        return lpop;
    }

    /**
     * 从右边取出一个列表中的值
     *
     * @param key
     * @return
     */
    public static String rpop(String key) {
        Jedis jedis = null;
        String rpop = null;
        try {
            jedis = getJedis();
            rpop = jedis.rpop(key);
        }finally {
            if (jedis != null){
                jedis.close();
            }
        }
        return rpop;
    }

    /**
     * 取出列表中指定范围内的值,0 到 -1 表示全部
     *
     * @param key
     * @param startIndex
     * @param endIndex
     * @return
     */
    public static List<String> lrange(String key, int startIndex, int endIndex) {
        Jedis jedis = null;
        List<String> result = null;
        try {
            jedis = getJedis();
            result = jedis.lrange(key, startIndex, endIndex);
        }finally {
            if (jedis != null){
                jedis.close();
            }
        }
        return result;
    }

    /**
     * 返回某列表指定索引位置的值
     *
     * @param key 列表key
     * @param index 索引位置
     * @return
     */
    public static String lindex(String key, int index) {
        Jedis jedis = null;
        String lindex = null;
        try {
            jedis = getJedis();
            lindex = jedis.lindex(key, index);
        }finally {
            if (jedis != null){
                jedis.close();
            }
        }
        return lindex;
    }

    /**
     * 返回某列表的长度
     *
     * @param key
     * @return
     */
    public static Long llen(String key) {
        Jedis jedis = null;
        Long llen = 0L;
        try {
            jedis = getJedis();
            llen = jedis.llen(key);
        }finally {
            if (jedis != null){
                jedis.close();
            }
        }
        return llen;
    }

    /**
     * 给某列表指定位置设置为指定的值
     *
     * @param key
     * @param index
     * @param str
     */
    public static void lset(String key, Long index, String str) {
        Jedis jedis = null;
        try {
            jedis = getJedis();
            jedis.lset(key, index, str);
        }finally {
            if (jedis != null){
                jedis.close();
            }
        }
    }

    /**
     * 对列表进行剪裁,保留指定闭区间的元素(索引位置也会重排)
     * @param key 列表key
     * @param startIndex 开始索引位置
     * @param endIndex 结束索引位置
     */
    public static void ltrim(String key,Integer startIndex,Integer endIndex){
        Jedis jedis = null;
        try {
            jedis = getJedis();
            jedis.ltrim(key, startIndex, endIndex);
        }finally {
            if (jedis != null){
                jedis.close();
            }
        }
    }

    /**
     * 从列表的左边阻塞弹出一个元素
     * @param key 列表的key
     * @param timeout 阻塞超时时间,0表示若没有元素就永久阻塞
     * @return
     */
    public static List<String> blpop(String key,Integer timeout){
        Jedis jedis = null;
        List<String> valueList = null;
        try {
            jedis = getJedis();
            valueList = jedis.blpop(timeout, key);
        }finally {
            if (jedis != null){
                jedis.close();
            }
        }
        return valueList;
    }

    /**
     * 从列表的右边阻塞弹出一个元素
     * @param key 列表的key
     * @param timeout 阻塞超时时间,0表示若没有元素就永久阻塞
     * @return
     */
    public static List<String> brpop(String key,Integer timeout){
        Jedis jedis = null;
        List<String> valueList = null;
        try {
            jedis = getJedis();
            valueList = jedis.brpop(timeout, key);
        }finally {
            if (jedis != null){
                jedis.close();
            }
        }
        return valueList;
    }


    /*########################  hash(哈希表)的操作  #######################*/
    //hset hget hmset hmget hgetall hdel hkeys hvals hexists hincrby

    /**
     * 给某个hash表设置一个键值对
     *
     * @param key
     * @param field
     * @param value
     */
    public static void hset(String key, String field, String value) {
        Jedis jedis = null;
        try {
            jedis = getJedis();
            jedis.hset(key, field, value);
        }finally {
            if (jedis != null){
                jedis.close();
            }
        }
    }

    /**
     * 取出某个hash表中某个field对应的value
     *
     * @param key key
     * @param field field
     * @return
     */
    public static String hget(String key, String field) {
        Jedis jedis = null;
        String hget = null;
        try {
            jedis = getJedis();
            hget = jedis.hget(key, field);
        }finally {
            if (jedis != null){
                jedis.close();
            }
        }
        return hget;
    }

    /**
     * 某个hash表设置一个或多个键值对
     *
     * @param key
     * @param kvMap
     */
    public static void hmset(String key, Map<String, String> kvMap) {
        Jedis jedis = null;
        try {
            jedis = getJedis();
            jedis.hmset(key, kvMap);
        }finally {
            if (jedis != null){
                jedis.close();
            }
        }
    }

    /**
     * 取出某个hash表中任意多个key对应的value的集合
     *
     * @param key
     * @param fields
     * @return
     */
    public static List<String> hmget(String key, String... fields) {
        Jedis jedis = null;
        List<String> hmget = null;
        try {
            jedis = getJedis();
            hmget = jedis.hmget(key, fields);
        }finally {
            if (jedis != null){
                jedis.close();
            }
        }
        return hmget;
    }

    /**
     * 取出某个hash表中所有的键值对
     *
     * @param key
     * @return
     */
    public static Map<String, String> hgetall(String key) {
        Jedis jedis = null;
        Map<String, String> kvMap = null;
        try {
            jedis = getJedis();
            kvMap = jedis.hgetAll(key);
        }finally {
            if (jedis != null){
                jedis.close();
            }
        }
        return kvMap;
    }

    /**
     * 判断某个hash表中的某个key是否存在
     *
     * @param key
     * @param field
     * @return
     */
    public static Boolean hexists(String key, String field) {
        Jedis jedis = null;
        Boolean exists = null;
        try {
            jedis = getJedis();
            exists = jedis.hexists(key, field);
        }finally {
            if (jedis != null){
                jedis.close();
            }
        }
        return exists;
    }

    /**
     * 返回某个hash表中所有的key
     *
     * @param key
     * @return
     */
    public static Set<String> hkeys(String key) {
        Jedis jedis = null;
        Set<String> keys = null;
        try {
            jedis = getJedis();
            keys = jedis.hkeys(key);
        }finally {
            if (jedis != null){
                jedis.close();
            }
        }
        return keys;
    }

    /**
     * 返回某个hash表中所有的value
     *
     * @param key
     * @return
     */
    public static List<String> hvals(String key) {
        Jedis jedis = null;
        List<String> hvals = null;
        try {
            jedis = getJedis();
            hvals = jedis.hvals(key);
        }finally {
            if (jedis != null){
                jedis.close();
            }
        }
        return hvals;
    }

    /**
     * 删除某个hash表中的一个或多个键值对
     *
     * @param key
     * @param fields
     */
    public static void hdel(String key, String... fields) {
        Jedis jedis = null;
        try {
            jedis = getJedis();
            jedis.hdel(key, fields);
        }finally {
            if (jedis != null){
                jedis.close();
            }
        }
    }

    /**
     * 给某个hash表中的某个field的value增加多少
     *
     * @param key       hash表的key
     * @param field     表中的某个field
     * @param increment 增加多少
     * @return
     */
    public static Long hincrby(String key, String field, Long increment) {
        Jedis jedis = null;
        Long result = null;
        try {
            jedis = getJedis();
            result = jedis.hincrBy(key, field, increment);
        }finally {
            if (jedis != null){
                jedis.close();
            }
        }
        return result;
    }

    /*########################  set(集合)的操作  ###########################*/

    /**
     * 往set集合中添加一个或多个元素
     * @param key key
     * @param members 要添加的元素
     * @return 添加成功的元素个数
     */
    public static Long sadd(String key,String... members){
        Jedis jedis = null;
        Long num = 0L;
        try {
            jedis = getJedis();
            num = jedis.sadd(key, members);
        }finally {
            if (jedis != null){
                jedis.close();
            }
        }
        return num;
    }

    /**
     * 返回set集合中的所有元素,顺序与加入时的顺序一致
     * @param key key
     * @return
     */
    public static Set<String> smembers(String key){
        Jedis jedis = null;
        Set<String> members = null;
        try {
            jedis = getJedis();
            members = jedis.smembers(key);
        }finally {
            if (jedis != null){
                jedis.close();
            }
        }
        return members;
    }

    /**
     * 判断集合中是否存在某个元素
     * @param key key
     * @param member 某个元素
     * @return true存在,false不存在
     */
    public static Boolean sismember(String key,String member){
        Jedis jedis = null;
        Boolean isMember = false;
        try {
            jedis = getJedis();
            isMember = jedis.sismember(key, member);
        }finally {
            if (jedis != null){
                jedis.close();
            }
        }
        return isMember;
    }

    /**
     * 返回set集合的长度
     * @param key key
     * @return
     */
    public static Long scard(String key){
        Jedis jedis = null;
        Long len = 0L;
        try {
            jedis = getJedis();
            len = jedis.scard(key);
        }finally {
            if (jedis != null){
                jedis.close();
            }
        }
        return len;
    }

    /**
     * 删除set集合中指定的一个或多个元素
     * @param key
     * @param members 要删除的元素
     * @return 删除成功的元素个数
     */
    public static Long srem(String key,String... members){
        Jedis jedis = null;
        Long num = 0L;
        try {
            jedis = getJedis();
            num = jedis.srem(key,members);
        }finally {
            if (jedis != null){
                jedis.close();
            }
        }
        return num;
    }

    /**
     * 将key1中的元素key1Member移动到key2中
     * @param key1 来源集合key
     * @param key2 目的地集合key
     * @param key1Member key1中的元素
     * @return 1成功,0失败
     */
    public static Long smove(String key1,String key2,String key1Member){
        Jedis jedis = null;
        Long num = 0L;
        try {
            jedis = getJedis();
            num = jedis.smove(key1,key2,key1Member);
        }finally {
            if (jedis != null){
                jedis.close();
            }
        }
        return num;
    }

    /**
     * 随机查询返回集合中的指定个数的元素(若count为负数,返回的元素可能会重复)
     * @param key key
     * @param count 要查询返回的元素个数
     * @return 元素list集合
     */
    public static List<String> srandmember(String key,int count){
        Jedis jedis = null;
        List<String> members = null;
        try {
            jedis = getJedis();
            members = jedis.srandmember(key,count);
        }finally {
            if (jedis != null){
                jedis.close();
            }
        }
        return members;
    }

    /**
     * 从set集合中随机弹出指定个数个元素
     * @param key key
     * @param count 要弹出的个数
     * @return 随机弹出的元素
     */
    public static Set<String> spop(String key,int count){
        Jedis jedis = null;
        Set<String> members = null;
        try {
            jedis = getJedis();
            members = jedis.spop(key,count);
        }finally {
            if (jedis != null){
                jedis.close();
            }
        }
        return members;
    }

    /**
     * 求交集,返回多个set集合相交的部分
     * @param setKeys 多个set集合的key
     * @return 相交的元素集合
     */
    public static Set<String> sinter(String... setKeys){
        Jedis jedis = null;
        Set<String> members = null;
        try {
            jedis = getJedis();
            members = jedis.sinter(setKeys);
        }finally {
            if (jedis != null){
                jedis.close();
            }
        }
        return members;
    }

    /**
     * 求并集,求几个set集合的并集(因为set中不会有重复的元素,合并后的集合也不会有重复的元素)
     * @param setKeys 多个set的key
     * @return 合并后的集合
     */
    public static Set<String> sunion(String... setKeys){
        Jedis jedis = null;
        Set<String> members = null;
        try {
            jedis = getJedis();
            members = jedis.sunion(setKeys);
        }finally {
            if (jedis != null){
                jedis.close();
            }
        }
        return members;
    }

    /**
     * 求差集,求几个集合之间的差集
     * @param setKeys 多个set的key
     * @return 差集
     */
    public static Set<String> sdiff(String... setKeys){
        Jedis jedis = null;
        Set<String> members = null;
        try {
            jedis = getJedis();
            members = jedis.sdiff(setKeys);
        }finally {
            if (jedis != null){
                jedis.close();
            }
        }
        return members;
    }


    /*########################  zset(有序集合)的操作  #######################*/

    /**
     * 添加一个元素到zset
     * @param key key
     * @param score 元素的分数
     * @param member 元素
     * @return 成功添加的元素个数
     */
    public static Long zadd(String key,double score, String member){
        Jedis jedis = null;
        Long num = null;
        try {
            jedis = getJedis();
            num = jedis.zadd(key,score,member);
        }finally {
            if (jedis != null){
                jedis.close();
            }
        }
        return num;
    }

    /**
     * 添加一个或多个元素到zset
     * @param key key
     * @param memberScores 元素和分数的map集合,map的k是元素,v是分数
     * @return 成功添加的元素个数
     */
    public static Long zadd(String key,Map<String,Double> memberScores){
        Jedis jedis = null;
        Long num = null;
        try {
            jedis = getJedis();
            num = jedis.zadd(key,memberScores);
        }finally {
            if (jedis != null){
                jedis.close();
            }
        }
        return num;
    }

    /**
     * 查询指定闭区间的元素(根据分数升序)
     * (0,-1表示全部)
     * @param key zset的key
     * @param start 开始区间
     * @param end 结束区间
     * @return 元素集合
     */
    public static Set<String> zrange(String key, long start, long end){
        Jedis jedis = null;
        Set<String> ascResult = null;
        try {
            jedis = getJedis();
            ascResult = jedis.zrange(key,start,end);
        }finally {
            if (jedis != null){
                jedis.close();
            }
        }
        return ascResult;
    }

    /**
     * 查询指定闭区间的元素,带着分数
     * (0,-1表示全部)
     * @param key zset的key
     * @param start 开始区间
     * @param end 结束区间
     * @return 元素集合 格式为:
     * [{"element":"a","score":10.0,"binaryElement":"YQ=="},{"element":"b","score":20.0,"binaryElement":"Yg=="}]
     */
    public static Set<Tuple> zrangeWithScores(String key, long start, long end){
        Jedis jedis = null;
        Set<Tuple> ascResult = null;
        try {
            jedis = getJedis();
            ascResult = jedis.zrangeWithScores(key,start,end);
        }finally {
            if (jedis != null){
                jedis.close();
            }
        }
        return ascResult;
    }

    /**
     * 查询指定索引闭区间的元素(根据分数降序)
     * (0,-1表示全部)
     * @param key zset的key
     * @param start 开始区间
     * @param end 结束区间
     * @return 元素集合
     */
    public static Set<String> zrevrange(String key, long start, long end){
        Jedis jedis = null;
        Set<String> descResult = null;
        try {
            jedis = getJedis();
            descResult = jedis.zrevrange(key,start,end);
        }finally {
            if (jedis != null){
                jedis.close();
            }
        }
        return descResult;
    }

    /**
     * 查询指定索引闭区间的元素,带着分数(根据分数降序)
     * (0,-1表示全部)
     * @param key zset的key
     * @param start 开始区间
     * @param end 结束区间
     * @return 元素集合 格式为:
     * [{"element":"b","score":20.0,"binaryElement":"Yg=="},{"element":"a","score":10.0,"binaryElement":"YQ=="}]
     */
    public static Set<Tuple> zrevrangeWithScores(String key, long start, long end){
        Jedis jedis = null;
        Set<Tuple> descResult = null;
        try {
            jedis = getJedis();
            descResult = jedis.zrevrangeWithScores(key,start,end);
        }finally {
            if (jedis != null){
                jedis.close();
            }
        }
        return descResult;
    }

    /**
     * 返回有序集合(zset)中的元素个数
     * @param key key
     * @return 个数
     */
    public static Long zcard(String key){
        Jedis jedis = null;
        Long count = null;
        try {
            jedis = getJedis();
            count = jedis.zcard(key);
        }finally {
            if (jedis != null){
                jedis.close();
            }
        }
        return count;
    }

    /**
     * 返回指定分数区间的元素个数(闭区间)
     * @param key key
     * @param startScore 开始分数
     * @param endScore 结束分数
     * @return 个数
     */
    public static Long zcount(String key,Long startScore,Long endScore){
        Jedis jedis = null;
        Long count = null;
        try {
            jedis = getJedis();
            count = jedis.zcount(key,startScore,endScore);
        }finally {
            if (jedis != null){
                jedis.close();
            }
        }
        return count;
    }

    /**
     * 返回某元素在集合中的排名(根据分数降序排列时)
     * @param key key
     * @param member 集合中的元素
     * @return 排名,从0开始
     */
    public static Long zrevrank(String key, String member){
        Jedis jedis = null;
        Long count = null;
        try {
            jedis = getJedis();
            count = jedis.zrevrank(key,member);
        }finally {
            if (jedis != null){
                jedis.close();
            }
        }
        return count;
    }

    /**
     * 返回某元素在集合中的排名(根据分数升序排列时)
     * @param key key
     * @param member 集合中的元素
     * @return 排名,从0开始
     */
    public static Long zrank(String key, String member){
        Jedis jedis = null;
        Long count = null;
        try {
            jedis = getJedis();
            count = jedis.zrank(key,member);
        }finally {
            if (jedis != null){
                jedis.close();
            }
        }
        return count;
    }

    /**
     * 升序查询指定分数闭区间的元素
     * @param key key
     * @param min 最小分数
     * @param max 最大分数
     * @return 元素集合
     */
    public static Set<String> zrangeByScore(String key,double min, double max){
        Jedis jedis = null;
        Set<String> members = null;
        try {
            jedis = getJedis();
            members = jedis.zrangeByScore(key, min, max);
        }finally {
            if (jedis != null){
                jedis.close();
            }
        }
        return members;
    }

    /**
     * 升序查询指定分数闭区间的元素,并指定偏移量
     * @param key key
     * @param min 最小分数
     * @param max 最大分数
     * @param offset 偏移量
     * @param size 数量
     * @return 元素集合
     */
    public static Set<String> zrangeByScore(String key,double min, double max,int offset,int size){
        Jedis jedis = null;
        Set<String> members = null;
        try {
            jedis = getJedis();
            members = jedis.zrangeByScore(key, min, max,offset,size);
        }finally {
            if (jedis != null){
                jedis.close();
            }
        }
        return members;
    }

    /**
     * 升序查询指定分数闭区间的元素,带着分数
     * @param key key
     * @param min 最小分数
     * @param max 最大分数
     * @return 元素集合
     */
    public static Set<Tuple> zrangeByScoreWithScores(String key,double min, double max){
        Jedis jedis = null;
        Set<Tuple> members = null;
        try {
            jedis = getJedis();
            members = jedis.zrangeByScoreWithScores(key, min, max);
        }finally {
            if (jedis != null){
                jedis.close();
            }
        }
        return members;
    }

    /**
     * 升序查询指定分数闭区间的元素,并指定偏移量,带着分数
     * @param key key
     * @param min 最小分数
     * @param max 最大分数
     * @param offset 偏移量
     * @param size 数量
     * @return 元素集合
     */
    public static Set<Tuple> zrangeByScoreWithScores(String key,double min, double max,int offset,int size){
        Jedis jedis = null;
        Set<Tuple> members = null;
        try {
            jedis = getJedis();
            members = jedis.zrangeByScoreWithScores(key, min, max,offset,size);
        }finally {
            if (jedis != null){
                jedis.close();
            }
        }
        return members;
    }

    /**
     * 降序查询指定分数闭区间的元素
     * @param key key
     * @param max 最大分数
     * @param min 最小分数
     * @return 元素集合
     */
    public static Set<String> zrevrangebyscore(String key,double max,double min){
        Jedis jedis = null;
        Set<String> members = null;
        try {
            jedis = getJedis();
            members = jedis.zrevrangeByScore(key, max,min);
        }finally {
            if (jedis != null){
                jedis.close();
            }
        }
        return members;
    }

    /**
     * 降序查询指定分数闭区间的元素,并指定偏移量
     * @param key key
     * @param max 最大分数
     * @param min 最小分数
     * @return 元素集合
     */
    public static Set<String> zrevrangebyscore(String key,double max,double min,int offset,int size){
        Jedis jedis = null;
        Set<String> members = null;
        try {
            jedis = getJedis();
            members = jedis.zrevrangeByScore(key, max,min,offset,size);
        }finally {
            if (jedis != null){
                jedis.close();
            }
        }
        return members;
    }

    /**
     * 降序查询指定分数闭区间的元素,并带着分数
     * @param key key
     * @param min 最小分数
     * @param max 最大分数
     * @return 元素集合
     */
    public static Set<Tuple> zrevrangeByScoreWithScores(String key,double max,double min){
        Jedis jedis = null;
        Set<Tuple> members = null;
        try {
            jedis = getJedis();
            members = jedis.zrevrangeByScoreWithScores(key,max,min);
        }finally {
            if (jedis != null){
                jedis.close();
            }
        }
        return members;
    }

    /**
     * 降序查询指定分数闭区间的元素,并指定偏移量,带着分数
     * @param key key
     * @param min 最小分数
     * @param max 最大分数
     * @param offset 偏移量
     * @param size 数量
     * @return 元素集合
     */
    public static Set<Tuple> zrevrangeByScoreWithScores(String key,double max,double min,int offset,int size){
        Jedis jedis = null;
        Set<Tuple> members = null;
        try {
            jedis = getJedis();
            members = jedis.zrevrangeByScoreWithScores(key, min, max,offset,size);
        }finally {
            if (jedis != null){
                jedis.close();
            }
        }
        return members;
    }

    /**
     * 有序集合中指定删除一或多个元素
     * @param key
     * @param member 元素
     * @return 删除成功的个数
     */
    public static Long zrem(String key, String... member){
        Jedis jedis = null;
        Long num = null;
        try {
            jedis = getJedis();
            num = jedis.zrem(key,member);
        }finally {
            if (jedis != null){
                jedis.close();
            }
        }
        return num;
    }

    /**
     * 分数升序排名时,删除指定索引区间的元素
     * @param key key
     * @param start 开始索引
     * @param end 结束索引
     * @return 删除成功的个数
     */
    public static Long zremrangebyrank(String key,long start,long end){
        Jedis jedis = null;
        Long num = null;
        try {
            jedis = getJedis();
            num = jedis.zremrangeByRank(key,start,end);
        }finally {
            if (jedis != null){
                jedis.close();
            }
        }
        return num;
    }

    /**
     * 分数升序排名时,删除指定分数区间的元素
     * @param key key
     * @param min 最小分数
     * @param max 最大分数
     * @return 删除成功的个数
     */
    public static Long zremrangeByScore(String key,long min,long max){
        Jedis jedis = null;
        Long num = null;
        try {
            jedis = getJedis();
            num = jedis.zremrangeByScore(key,min,max);
        }finally {
            if (jedis != null){
                jedis.close();
            }
        }
        return num;
    }

    /**
     * 查询有序集合中某元素的分数
     * @param key key
     * @param member 元素
     * @return 删除成功的个数
     */
    public static Double zscore(String key,String member){
        Jedis jedis = null;
        Double score = null;
        try {
            jedis = getJedis();
            score = jedis.zscore(key,member);
        }finally {
            if (jedis != null){
                jedis.close();
            }
        }
        return score;
    }

    /**
     * 给有序集合中某元素的分数增加(正数)或减少(负数)
     * @param key key
     * @param score 分数
     * @param member 元素
     * @return 新的分数
     */
    public static Double zincrby(String key,double score,String member){
        Jedis jedis = null;
        Double newScore = null;
        try {
            jedis = getJedis();
            newScore = jedis.zincrby(key,score,member);
        }finally {
            if (jedis != null){
                jedis.close();
            }
        }
        return newScore;
    }


    /**
     * 私有化构造器,不让实例化对象
     */
    private RedisUtils() {
    }

    public static void main(String[] args) {
        JedisPool jedisPool = MyJedisPoolConfig.getJedisPool();
        JedisPool jedisPool1 = MyJedisPoolConfig.getJedisPool();
        System.out.println(jedisPool == jedisPool1);//true
    }

}

4.测试类

package com.simoniu.db_redis.redis;

import org.junit.Test;
import org.junit.runner.RunWith;
import org.springframework.boot.test.context.SpringBootTest;
import org.springframework.test.context.junit4.SpringRunner;

import javax.annotation.Resource;
import java.util.HashMap;
import java.util.List;
import java.util.Map;

@RunWith(SpringRunner.class)
@SpringBootTest
public class RedisUtilsTest {

    @Resource
    private RedisUtils redisUtils;

    @Test
    public void testRedisUtilsOperate(){

        Map<String,String> map = new HashMap<String,String>();
        map.put("sname","张无忌");
        map.put("gender","男");
        map.put("birthday","2001-10-01");
        map.put("address","湖北武当山");
        RedisUtils.hmset("person:3",map);

        List<String> list =  RedisUtils.hmget("person:3","sname","gender","birthday","address");
        list.forEach(System.out::println);
    }

}

运行效果:

张无忌
男
2001-10-01
湖北武当山