RedisUtils 操作五大集合增删改查

青旅半醒 2021-12-18 19:45 197阅读 0赞

前排提示，我在这个工具类加了@Component注解，如果在springboot的项目使用，记得通过@Autowired注入使用。

import org.springframework.beans.factory.annotation.Autowired;
    import org.springframework.data.redis.core.*;
    import org.springframework.stereotype.Component;
    import java.io.Serializable;
    import java.util.List;
    import java.util.Set;
    
    
    @Component
    public class RedisUtils {
    
    
        @Autowired
    
        private RedisTemplate redisTemplate;
    
    
        /**
         * 写入String型 [ 键，值]
         *
         * @param key
         * @param value
         * @return
         */
    
        public boolean set(final String key, Object value) {
            boolean result = false;
            try {
                ValueOperations<Serializable, Object> operations = redisTemplate.opsForValue();
                operations.set(key, value);
                result = true;
            } catch (Exception e) {
                e.printStackTrace();
            }
            return result;
    
        }
    
    
    
      /**
         * 写入String型,顺便带有过期时间 [ 键，值]
         *
         * @param key
         * @param value
         * @return
         */
    
        public boolean setWithTime(final String key, Object value,int seconds) {
            boolean result = false;
            try {
    
                ValueOperations<Serializable, Object> operations = redisTemplate.opsForValue();
                operations.set(key, value,seconds, TimeUnit.SECONDS);
                result = true;
            } catch (Exception e) {
                e.printStackTrace();
            }
            return result;
    
        }
    
    
    
        /**
         * 批量删除对应的value
         *
         * @param keys
         */
    
        public void remove(final String... keys) {
            for (String key : keys) {
                remove(key);
            }
        }
    
        /**
         * 批量删除key
         *
         * @param pattern
         */
    
        public void removePattern(final String pattern) {
            Set<Serializable> keys = redisTemplate.keys(pattern);
            if (keys.size() > 0)
                redisTemplate.delete(keys);
        }
    
        /**
         * 删除对应的value
         *
         * @param key
         */
    
        public void remove(final String key) {
            if (exists(key)) {
                redisTemplate.delete(key);
            }
        }
    
    
        /**
         * 判断缓存中是否有对应的value
         *
         * @param key
         * @return
         */
    
        public boolean exists(final String key) {
            return redisTemplate.hasKey(key);
        }
    
    
        /**
         * 读取缓存
         *
         * @param key
         * @return
         */
    
        public Object get(final String key) {
            Object result = null;
            ValueOperations<Serializable, Object> operations = redisTemplate.opsForValue();
            result = operations.get(key);
            return result;
        }
    
    
        /**
         * 哈希 添加
         * hash 一个键值(key->value)对集合
         *
         * @param key
         * @param hashKey
         * @param value
         */
    
        public void hmSet(String key, Object hashKey, Object value) {
    
            HashOperations<String, Object, Object> hash = redisTemplate.opsForHash();
    
            hash.put(key, hashKey, value);
    
        }
    
    
        /**
         * Hash获取数据
         *
         * @param key
         * @param hashKey
         * @return
         */
    
        public Object hmGet(String key, Object hashKey) {
            HashOperations<String, Object, Object> hash = redisTemplate.opsForHash();
            return hash.get(key, hashKey);
    
        }
    
    
        /**
         * 列表添加
         * list:lpush key value1
         *
         * @param k
         * @param v
         */
    
        public void lPush(String k, Object v) {
            ListOperations<String, Object> list = redisTemplate.opsForList();
            list.rightPush(k, v);
        }
    
    
        /**
         * 列表List获取
         * lrange： key 0 10 (读取的个数 从0开始 读取到下标为10 的数据)
         *
         * @param k
         * @param l
         * @param l1
         * @return
         */
    
        public List<Object> lRange(String k, long l, long l1) {
            ListOperations<String, Object> list = redisTemplate.opsForList();
            return list.range(k, l, l1);
        }
    
    
        /**
         * Set集合添加
         *
         * @param key
         * @param value
         */
    
        public void add(String key, Object value) {
            SetOperations<String, Object> set = redisTemplate.opsForSet();
            set.add(key, value);
        }
    
    
        /**
         * Set 集合获取
         *
         * @param key
         * @return
         */
    
        public Set<Object> setMembers(String key) {
    
            SetOperations<String, Object> set = redisTemplate.opsForSet();
    
            return set.members(key);
    
        }
    
    
        /**
         * Sorted set :有序集合添加
         *
         * @param key
         * @param value
         * @param scoure
         */
    
        public void zAdd(String key, Object value, double scoure) {
            ZSetOperations<String, Object> zset = redisTemplate.opsForZSet();
            zset.add(key, value, scoure);
        }
    
    
        /**
         * Sorted set:有序集合获取
         *
         * @param key
         * @param scoure
         * @param scoure1
         * @return
         */
    
        public Set<Object> rangeByScore(String key, double scoure, double scoure1) {
    
            ZSetOperations<String, Object> zset = redisTemplate.opsForZSet();
    
            return zset.rangeByScore(key, scoure, scoure1);
    
        }
    
    
        /**
         * 根据key获取Set中的所有值
         *
         * @param key 键
         * @return
         */
    
        public Set<Integer> sGet(String key) {
            try {
                return redisTemplate.opsForSet().members(key);
            } catch (Exception e) {
                e.printStackTrace();
                return null;
            }
        }
    
    
        /**
         * 根据value从一个set中查询,是否存在
         *
         * @param key   键
         * @param value 值
         * @return true 存在 false不存在
         */
    
        public boolean sHasKey(String key, Object value) {
            try {
                return redisTemplate.opsForSet().isMember(key, value);
            } catch (Exception e) {
                e.printStackTrace();
                return false;
            }
        }
    
    }