Tool classes encapsulated based on redistemplate

be based on RedisTemplate Encapsulated tool class

Expected simplification redisTemplate The operation of

package com.huakai.utils;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.annotation.Qualifier;
import org.springframework.data.redis.core.RedisTemplate;
import org.springframework.stereotype.Component;

import java.util.*;
import java.util.concurrent.TimeUnit;

/** * @author huakai */
@Component
public class RedisUtil {
    


    @Autowired
    @Qualifier("myRedisTemplate")
    private RedisTemplate<String, Object> redisTemplate;
    // =============================common============================

    /** *  Specify cache expiration time  * * @param key  key  * @param time  Time ( second ) */
    public boolean expire(String key, long time) {
    
        try {
    
            if (time >= 0) {
    
                redisTemplate.expire(key, time, TimeUnit.SECONDS);
            }
            return true;
        } catch (Exception e) {
    
            e.printStackTrace();
            return false;
        }

    }


    /** *  according to key  Get expiration time  * * @param key  key   Not for null * @return  Time ( second )  return 0 Stands for permanent validity  */
    public long getExpire(String key) {
    
        return Optional.ofNullable(redisTemplate.getExpire(key, TimeUnit.SECONDS)).orElse(0L);
    }

    /** *  Judge key Whether there is  * * @param key  key  * @return true  There is  false non-existent  */
    public boolean hasKey(String key) {
    
        try {
    
            return Optional.ofNullable(redisTemplate.hasKey(key)).orElse(false);
        } catch (Exception e) {
    
            e.printStackTrace();
            return false;
        }
    }


    /** *  Delete cache  * * @param keys  You can pass a value   Or more  */
    public boolean del(List<String> keys) {
    
        if (keys.size() > 0) {
    
            final Long aLong = Optional.ofNullable(redisTemplate.delete(keys)).orElse(0L);
            return aLong > 0;
        }
        return false;
    }

    // ============================String=============================

    /** *  Normal cache fetch  * * @param key  key  * @return  value  */
    public Object get(String key) {
    
        return key == null ? null : redisTemplate.opsForValue().get(key);
    }

    /** *  Normal cache put in  * * @param key  key  * @param value  value  * @return true success  false Failure  */
    public boolean set(String key, Object value) {
    
        try {
    
            redisTemplate.opsForValue().set(key, value);
            return true;
        } catch (Exception e) {
    
            e.printStackTrace();
            return false;
        }
    }

    /** *  The normal cache is put in and set the time  * * @param key  key  * @param value  value  * @param time  Time ( second ) time Be greater than 0  If time Less than or equal to 0  Will be set indefinitely  * @return true success  false  Failure  */
    public boolean set(String key, Object value, long time) {
    
        try {
    
            if (time > 0) {
    
                redisTemplate.opsForValue().set(key, value, time, TimeUnit.SECONDS);
            } else {
    
                set(key, value);
            }
            return true;
        } catch (Exception e) {
    
            e.printStackTrace();
            return false;
        }
    }

    /** *  Increasing  * * @param key  key  * @param delta  How much more should I add ( Greater than 0) */
    public long incr(String key, long delta) {
    
        if (delta < 0) {
    
            throw new RuntimeException(" The increment factor must be greater than 0");
        }
        return Optional.ofNullable(redisTemplate.opsForValue().increment(key, delta)).orElse(0L);
    }

    /** *  Decline  * * @param key  key  * @param delta  To cut it down a few ( Less than 0) */
    public long decr(String key, long delta) {
    
        if (delta < 0) {
    
            throw new RuntimeException(" The decline factor must be greater than 0");
        }
        return Optional.ofNullable(redisTemplate.opsForValue().increment(key, -delta)).orElse(0L);
    }

    public long decr(String key) {
    
        return Optional.ofNullable(redisTemplate.opsForValue().increment(key)).orElse(0L);
    }

    // ================================hash=================================

    /** * HashGet * * @param key  key   Not for null * @param item  term   Not for null * @return  value  */
    public Object hget(String key, String item) {
    
        return redisTemplate.opsForHash().get(key, item);
    }

    /** *  obtain hashKey All the corresponding key values  * * @param key  key  * @return  Corresponding multiple key values  */
    public Map<Object, Object> hKeys(String key) {
    
        return redisTemplate.opsForHash().entries(key);
    }

    /** *  obtain hashKey The length of  * * @param key  key  * @return  Hasan Key Size  */
    public Long hlen(String key) {
    
        Long size = 0L;
        try {
    
            size = Optional.of(redisTemplate.opsForHash()).map(o -> o.size(key)).orElse(0L);
        } catch (Exception e) {
    
            e.printStackTrace();
            return 0L;
        }
        return size;
    }

    /** * HashSet  And set the time  * * @param key  key  * @param map  Corresponding to multiple key values  * @param time  Time ( second ) * @return true success  false Failure  */
    public boolean hmset(String key, Map<String, Object> map, long time) {
    
        try {
    
            redisTemplate.opsForHash().putAll(key, map);
            if (time > 0) {
    
                expire(key, time);
            }
            return true;
        } catch (Exception e) {
    
            e.printStackTrace();
            return false;
        }

    }

    /** *  To a piece of hash Put multiple pieces of data in the table , If it doesn't exist, it will create  * @param key  key  * @param map  Corresponding to multiple key values  * @return true  success  false  Failure  */
    public boolean hset(String key, Map<String, Object> map) {
    
        try {
    
            redisTemplate.opsForHash().putAll(key, map);
            return true;
        } catch (Exception e) {
    
            e.printStackTrace();
            return false;
        }
    }

    /** *  To a piece of hash Put data in the table , If it doesn't exist, it will create  * * @param key  key  * @param item  term  * @param value  value  * @return true  success  false Failure  */
    public boolean hset(String key, String item, Object value) {
    
        try {
    
            redisTemplate.opsForHash().put(key, item, value);
            return true;
        } catch (Exception e) {
    
            e.printStackTrace();
            return false;
        }
    }

    /** *  To a piece of hash Put data in the table , If it doesn't exist, it will create  * * @param key  key  * @param item  term  * @param value  value  * @param time  Time ( second )  Be careful : If there is already hash Watch has time , This will replace the original time  * @return true  success  false Failure  */
    public boolean hset(String key, String item, Object value, long time) {
    
        try {
    
            redisTemplate.opsForHash().put(key, item, value);
            if (time > 0) {
    
                expire(key, time);
            }
            return true;
        } catch (Exception e) {
    
            e.printStackTrace();
            return false;
        }
    }

    /** *  Delete hash The values in the table  * * @param key  key   Not for null * @param item  term   Can make multiple   Not for null */
    public void hdel(String key, Object... item) {
    
        redisTemplate.opsForHash().delete(key, item);
    }

    /** *  Judge hash Whether there is a value of this item in the table  * * @param key  key   Not for null * @param item  term   Not for null * @return true  There is  false non-existent  */
    public boolean hHasKey(String key, String item) {
    
        return redisTemplate.opsForHash().hasKey(key, item);
    }

    /** * hash Increasing   If it doesn't exist , It creates a   And return the added value to  * * @param key  key  * @param item  term  * @param by  How much more should I add ( Greater than 0) */
    public double hincr(String key, String item, double by) {
    
        return redisTemplate.opsForHash().increment(key, item, by);
    }

    /** * hash Decline  * * @param key  key  * @param item  term  * @param by  Remember less ( Less than 0) */
    public double hdecr(String key, String item, double by) {
    
        return redisTemplate.opsForHash().increment(key, item, -by);
    }

    // ===============================list=================================


    /** *  Through the index   obtain list The value in  * * @param key  key  * @param index  Indexes  index>=0 when , 0  Header ,1  The second element , By analogy ;index<0 when ,-1, Tail ,-2 The next to last element , By analogy  */
    public Object lGet(String key, long index) {
    
        try {
    
            return redisTemplate.opsForList().index(key, index);
        } catch (Exception e) {
    
            e.printStackTrace();
            return null;
        }
    }

    /** *  obtain list Specify the content of the range  * * @param key  key  * @param start  Start  * @param end  end  0  To  -1 For all values  */
    public List<Object> lRange(String key, long start, long end) {
    
        try {
    
            return redisTemplate.opsForList().range(key, start, end);
        } catch (Exception e) {
    
            e.printStackTrace();
            return null;
        }
    }

    /** *  obtain list The length of the cache  * * @param key  key  */
    public long lLen(String key) {
    
        try {
    
            return Optional.ofNullable(redisTemplate.opsForList().size(key)).orElse(0L);
        } catch (Exception e) {
    
            e.printStackTrace();
            return 0;
        }
    }


    /** *  take list Put into cache  * * @param key  key  * @param value  value  */
    public boolean lSet(String key, Object value) {
    
        try {
    
            redisTemplate.opsForList().rightPush(key, value);
            return true;
        } catch (Exception e) {
    
            e.printStackTrace();
            return false;
        }
    }

    /** *  take list Put into cache  * * @param key  key  * @param value  value  * @param time  Time ( second ) */
    public boolean lSet(String key, Object value, long time) {
    
        try {
    
            redisTemplate.opsForList().rightPush(key, value);
            if (time > 0) {
    
                expire(key, time);
            }
            return true;
        } catch (Exception e) {
    
            e.printStackTrace();
            return false;
        }
    }

    /** *  take list Put into cache  * * @param key  key  * @param value  value  */
    public boolean lSet(String key, List<Object> value) {
    
        try {
    
            redisTemplate.opsForList().rightPushAll(key, value);
            return true;
        } catch (Exception e) {
    
            e.printStackTrace();
            return false;
        }
    }

    /** *  take list Put into cache  * * @param key  key  * @param value  value  * @param time  Time ( second ) */
    public boolean lSet(String key, List<Object> value, long time) {
    
        try {
    
            redisTemplate.opsForList().rightPushAll(key, value);
            if (time > 0) {
    
                expire(key, time);
            }
            return true;
        } catch (Exception e) {
    
            e.printStackTrace();
            return false;
        }
    }

    /** *  Modify according to the index list A piece of data in  * * @param key  key  * @param index  Indexes  * @param value  value  */
    public boolean lUpdate(String key, long index, Object value) {
    
        try {
    
            redisTemplate.opsForList().set(key, index, value);
            return true;
        } catch (Exception e) {
    
            e.printStackTrace();
            return false;
        }
    }

    /** *  remove N The values are value * * @param key  key  * @param count  How many removed  * @param value  value  * @return  Number of removed  */
    public long lRemove(String key, long count, Object value) {
    
        try {
    
            return Optional.ofNullable(redisTemplate.opsForList().remove(key, count, value)).orElse(0L);
        } catch (Exception e) {
    
            e.printStackTrace();
            return 0;
        }
    }

    // ============================set=============================

    /** *  according to key obtain Set All the values in  * * @param key  key  */
    public Set<Object> sMember(String key) {
    
        return redisTemplate.opsForSet().members(key);
    }

    /** *  according to value From a set Query in , Whether there is  * * @param key  key  * @param value  value  * @return true  There is  false non-existent  */
    public boolean sIsMember(String key, Object value) {
    
        return Optional.ofNullable(redisTemplate.opsForSet().isMember(key, value)).orElse(false);
    }

    /** *  Put data into set cache  * * @param key  key  * @param values  value   It can be more than one  * @return  The number of successes  */
    public long sAdd(String key, Object... values) {
    
        return Optional.ofNullable(redisTemplate.opsForSet().add(key, values)).orElse(0L);
    }

    /** *  take set Data is put into the cache  * * @param key  key  * @param time  Time ( second ) * @param values  value   It can be more than one  * @return  The number of successes  */
    public long sSetWithTime(String key, long time, Object... values) {
    
        try {
    
            if (time > 0) {
    
                expire(key, time);
            }
            return Optional.ofNullable(redisTemplate.opsForSet().add(key, values)).orElse(0L);
        } catch (Exception e) {
    
            e.printStackTrace();
            return 0;
        }
    }

    /** *  Randomly remove and return an element  * * @param key  key  * @return  Removed elements  */
    public Object sPop(String key) {
    
        return redisTemplate.opsForSet().pop(key);
    }

    /** *  Randomly return the specified length count Elements  * * @param key  key  * @param count  Returns the number of elements  * @return  Returned element  */
    public List<Object> sRandMember(String key, long count) {
    
        return redisTemplate.opsForSet().randomMembers(key, count);
    }

    /** *  Two set Intersection of sets  * * @param key1  One of them set Of key * @param key2  the other one set Of key * @return  Two set The difference between the set  */
    public Set<Object> sDiff(String key1, String key2) {
    
        return redisTemplate.opsForSet().difference(key1, key2);
    }

    /** *  Two set Intersection of sets  * * @param key1  One of them set Of key * @param key2  the other one set Of key * @return  Two set Intersection  */
    public Set<Object> Sinter(String key1, String key2) {
    
        return redisTemplate.opsForSet().intersect(key1, key2);
    }

    /** *  Two set Set and union  * * @param key1  One of them set Of key * @param key2  the other one set Of key * @return  Two set Union  */
    public Set<Object> sUnion(String key1, String key2) {
    
        return redisTemplate.opsForSet().union(key1, key2);
    }

    /** *  obtain set The length of the cache  * * @param key  key  */
    public long sGetSetSize(String key) {
    
        return Optional.ofNullable(redisTemplate.opsForSet().size(key)).orElse(0L);
    }

    /** *  The removal value is value Of  * * @param key  key  * @param values  value   It can be more than one  * @return  Number of removed  */
    public long setRemove(String key, Object... values) {
    
        return Optional.ofNullable(redisTemplate.opsForSet().remove(key, values)).orElse(0L);
    }

    // ============================sorted set=============================

    /** *  Add elements to zSet Get together  * @param key  key  * @param value  value  * @param score  fraction  * @return  Whether to add successfully  */
    public boolean zAdd(String key, Object value, double score) {
    
        return Optional.ofNullable(redisTemplate.opsForZSet().add(key, value, score)).orElse(false);
    }

    /** *  Return the data of the specified score range  * @param key  key  * @param start  The starting position  * @param end  End position  * @return  Specify zSet */
    public Set<Object> zRange(String key,long start,long end){
    
        return redisTemplate.opsForZSet().range(key,start,end);
    }
}