redis在Java web项目的简单应用

朱雀 2022-07-15 11:29 216阅读 0赞

## 一.准备要使用的的jar包,我使用了以下jar包，关于json的jar包是方便存储和转换redis用到的值; ##

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## 二.编写加载redis是要用到的实例类 ##

package com.redis;
    
    import redis.clients.jedis.ShardedJedis;
    
    /**  
     * @Title: RedisDataSource.java
     * @copyright 
     * @Package com.cy.redis
     * @Description: 该接口用于获取redis客户端实例，通过该实例操作redis数据源
     * @author 
     * @date 2016-10-21 下午04:22:41
     */
    public interface RedisDataSource {
    	
    	public abstract ShardedJedis getRedisClient();
    	
    	public void returnResource(ShardedJedis shardedJedis);
    	
            public void returnResource(ShardedJedis shardedJedis,boolean broken);
    
    }

package com.redis;
    
    import org.slf4j.LoggerFactory;
    import org.springframework.beans.factory.annotation.Autowired;
    
    import redis.clients.jedis.ShardedJedis;
    import redis.clients.jedis.ShardedJedisPool;
    
    /**  
     * @Title: RedisDataSourceImpl.java
     * @copyright 
     * @Package com.cy.redis
     * @Description: 获取redis客户端实例，通过该实例操作redis数据源
     * @author 
     * @date 2016-10-21 下午04:22:54
     */
    public class RedisDataSourceImpl implements RedisDataSource{
    
    	private static final org.slf4j.Logger log = LoggerFactory.getLogger(RedisDataSourceImpl.class);
    	
    	@Autowired
    	private ShardedJedisPool shardedJedisPool;
    	
    	public ShardedJedisPool getShardedJedisPool() {
    		return shardedJedisPool;
    	}
    
    	public void setShardedJedisPool(ShardedJedisPool shardedJedisPool) {
    		this.shardedJedisPool = shardedJedisPool;
    	}
    
    	/**
    	 * 获取redis客户端
    	 */
    	public ShardedJedis getRedisClient() {
    		try {
    			ShardedJedis shardedJedis=shardedJedisPool.getResource();
    			return shardedJedis;
    		} catch (Exception e) {
    			log.error("getRedisClient ,error",e);
    			e.printStackTrace();
    		}
    		return null;
    	}
    
    	/**
    	 * 将资源返还给pool
    	 */
    	@SuppressWarnings("deprecation")
    	public void returnResource(ShardedJedis shardedJedis) {
    		shardedJedisPool.returnResource(shardedJedis);
    		
    	}
    
    	/**
    	 * 出现异常后返回资源给pool
    	 */
    	@SuppressWarnings("deprecation")
    	public void returnResource(ShardedJedis shardedJedis, boolean broken) {
    		if(broken){
    			shardedJedisPool.returnBrokenResource(shardedJedis);
    		}else{
    			shardedJedisPool.returnResource(shardedJedis);
    		}
    		
    	}
    
    }

package com.redis;
    
    import org.slf4j.LoggerFactory;
    import org.springframework.beans.factory.annotation.Autowired;
    
    import redis.clients.jedis.Jedis;
    import redis.clients.jedis.JedisShardInfo;
    import redis.clients.jedis.ShardedJedis;
    
    /**  
     * @Title: RedisClientTemplate.java
     * @copyright 
     * @Package com.cy.redis
     * @Description: 用于操作redis取值、存值操作的工具类
     * @author 
     * @date 2016-10-21 下午04:21:59
     */
    public class RedisClientTemplate {
    	
    	private static final org.slf4j.Logger log=LoggerFactory.getLogger(RedisClientTemplate.class);
    	
    	@Autowired
    	private RedisDataSource redisDataSource;
    
    	public RedisDataSource getRedisDataSource() {
    		return redisDataSource;
    	}
    
    	public void setRedisDataSource(RedisDataSource redisDataSource) {
    		this.redisDataSource = redisDataSource;
    	}
    	
    	public void disconnect(){
    		ShardedJedis shardedJedis=redisDataSource.getRedisClient();
    		shardedJedis.disconnect();
    	}
    	
    	/**
    	* @Description: 在redis里设置单个值
    	* @author Mr.chen
    	* @date 2016-10-21 下午04:37:06
    	 */
    	public String set(String key, String value){
    		String result=null;
    		ShardedJedis shardedJedis=redisDataSource.getRedisClient();
    		if(shardedJedis==null){
    			return result;
    		}
    		boolean broken=false;
    		try {
    			result=shardedJedis.set(key, value);
    		} catch (Exception e) {
    			broken=true;
    			e.printStackTrace();
    		}finally{
    			redisDataSource.returnResource(shardedJedis, broken);
    		}
    		
    		return result;
    	}
    	
    	/**
    	* @Description: 获取redis单个值 
    	* @author Mr.chen
    	* @date 2016-10-21 下午04:40:57
    	 */
    	public String get(String key) {
            String result = null;
            ShardedJedis shardedJedis = redisDataSource.getRedisClient();
            if (shardedJedis == null) {
                return result;
            }
            boolean broken = false;
            try {
                result = shardedJedis.get(key);
    
            } catch (Exception e) {
                log.error(e.getMessage(), e);
                broken = true;
            } finally {
                redisDataSource.returnResource(shardedJedis, broken);
            }
            return result;
        }
    	
    	/**
    	* @Description: 判断redis是否存在key
    	* @author Mr.chen
    	* @date 2016-10-21 下午04:41:39
    	 */
    	public Boolean exists(String key) {
            Boolean result = false;
            ShardedJedis shardedJedis = redisDataSource.getRedisClient();
            if (shardedJedis == null) {
                return result;
            }
            boolean broken = false;
            try {
                result = shardedJedis.exists(key);
            } catch (Exception e) {
                log.error(e.getMessage(), e);
                broken = true;
            } finally {
                redisDataSource.returnResource(shardedJedis, broken);
            }
            return result;
        }
    	
    	/**
    	* @Description: 获取key返回存储值的类型 
    	* @author Mr.chen
    	* @date 2016-10-21 下午04:42:08
    	 */
    	public String type(String key) {
            String result = null;
            ShardedJedis shardedJedis = redisDataSource.getRedisClient();
            if (shardedJedis == null) {
                return result;
            }
            boolean broken = false;
            try {
                result = shardedJedis.type(key);
    
            } catch (Exception e) {
                log.error(e.getMessage(), e);
                broken = true;
            } finally {
                redisDataSource.returnResource(shardedJedis, broken);
            }
            return result;
        }
    	
    	/**
    	* @Description: 在某段时间后实现
    	* @author Mr.chen
    	* @date 2016-10-21 下午04:43:25
    	 */
        public Long expire(String key, int seconds) {
            Long result = null;
            ShardedJedis shardedJedis = redisDataSource.getRedisClient();
            if (shardedJedis == null) {
                return result;
            }
            boolean broken = false;
            try {
                result = shardedJedis.expire(key, seconds);
    
            } catch (Exception e) {
                log.error(e.getMessage(), e);
                broken = true;
            } finally {
                redisDataSource.returnResource(shardedJedis, broken);
            }
            return result;
        }
    
        /**
        * @Description: 在某个时间点失效 
        * @author Mr.chen
        * @date 2016-10-21 下午04:43:40
         */
        public Long expireAt(String key, long unixTime) {
            Long result = null;
            ShardedJedis shardedJedis = redisDataSource.getRedisClient();
            if (shardedJedis == null) {
                return result;
            }
            boolean broken = false;
            try {
                result = shardedJedis.expireAt(key, unixTime);
    
            } catch (Exception e) {
                log.error(e.getMessage(), e);
                broken = true;
            } finally {
                redisDataSource.returnResource(shardedJedis, broken);
            }
            return result;
        }
    
        /**
        * @Description: 以秒为单位，返回给定 key 的剩余生存时间
        * @author Mr.chen
        * @date 2016-10-21 下午04:44:00
         */
        public Long ttl(String key) {
            Long result = null;
            ShardedJedis shardedJedis = redisDataSource.getRedisClient();
            if (shardedJedis == null) {
                return result;
            }
            boolean broken = false;
            try {
                result = shardedJedis.ttl(key);
    
            } catch (Exception e) {
                log.error(e.getMessage(), e);
                broken = true;
            } finally {
                redisDataSource.returnResource(shardedJedis, broken);
            }
            return result;
        }
    
        /**
        * @Description: 将 key 的值设为 value ，当且仅当 key 不存在
        * @author Mr.chen
        * @date 2016-10-21 下午04:44:17
         */
        public Long setnx(String key, String value) {
            Long result = null;
            ShardedJedis shardedJedis = redisDataSource.getRedisClient();
            if (shardedJedis == null) {
                return result;
            }
            boolean broken = false;
            try {
                result = shardedJedis.setnx(key, value);
            } catch (Exception e) {
                log.error(e.getMessage(), e);
                broken = true;
            } finally {
                redisDataSource.returnResource(shardedJedis, broken);
            }
            return result;
        }
        /**
         * 将值 value 关联到 key ，并将 key 的生存时间设为 seconds (以秒为单位)
         * @param key
         * @param seconds
         * @param value
         * @return
         */
        public String setex(String key, int seconds, String value) {
            String result = null;
            ShardedJedis shardedJedis = redisDataSource.getRedisClient();
            if (shardedJedis == null) {
                return result;
            }
            boolean broken = false;
            try {
                result = shardedJedis.setex(key, seconds, value);
    
            } catch (Exception e) {
                log.error(e.getMessage(), e);
                broken = true;
            } finally {
                redisDataSource.returnResource(shardedJedis, broken);
            }
            return result;
        }
        /**
         * 将 key 所储存的值减去减量 integer 
         * @param key
         * @param integer
         * @return
         */
        public Long decrBy(String key, long integer) {
            Long result = null;
            ShardedJedis shardedJedis = redisDataSource.getRedisClient();
            if (shardedJedis == null) {
                return result;
            }
            boolean broken = false;
            try {
                result = shardedJedis.decrBy(key, integer);
    
            } catch (Exception e) {
                log.error(e.getMessage(), e);
                broken = true;
            } finally {
                redisDataSource.returnResource(shardedJedis, broken);
            }
            return result;
        }
        /**
         * 将 key 中储存的数字值减一。
         * @param key
         * @return
         */
        public Long decr(String key) {
            Long result = null;
            ShardedJedis shardedJedis = redisDataSource.getRedisClient();
            if (shardedJedis == null) {
                return result;
            }
            boolean broken = false;
            try {
                result = shardedJedis.decr(key);
    
            } catch (Exception e) {
                log.error(e.getMessage(), e);
                broken = true;
            } finally {
                redisDataSource.returnResource(shardedJedis, broken);
            }
            return result;
        }
        /**
         * 将 key 所储存的值加上增量 integer 
         * @param key
         * @param integer
         * @return
         */
        public Long incrBy(String key, long integer) {
            Long result = null;
            ShardedJedis shardedJedis = redisDataSource.getRedisClient();
            if (shardedJedis == null) {
                return result;
            }
            boolean broken = false;
            try {
                result = shardedJedis.incrBy(key, integer);
    
            } catch (Exception e) {
                log.error(e.getMessage(), e);
                broken = true;
            } finally {
                redisDataSource.returnResource(shardedJedis, broken);
            }
            return result;
        }
        /**
         * 将 key 中储存的数字值增一
         * @param key
         * @return
         */
        public Long incr(String key) {
            Long result = null;
            ShardedJedis shardedJedis = redisDataSource.getRedisClient();
            if (shardedJedis == null) {
                return result;
            }
            boolean broken = false;
            try {
                result = shardedJedis.incr(key);
    
            } catch (Exception e) {
                log.error(e.getMessage(), e);
                broken = true;
            } finally {
                redisDataSource.returnResource(shardedJedis, broken);
            }
            return result;
        }
        /**
         * 如果 key 已经存在并且是一个字符串， APPEND 命令将 value 追加到 key 原来的值的末尾。
         * 如果 key 不存在， APPEND 就简单地将给定 key 设为 value ，就像执行 SET key value 一样。
         * @param key
         * @param value
         * @return
         */
        public Long append(String key, String value) {
            Long result = null;
            ShardedJedis shardedJedis = redisDataSource.getRedisClient();
            if (shardedJedis == null) {
                return result;
            }
            boolean broken = false;
            try {
                result = shardedJedis.append(key, value);
    
            } catch (Exception e) {
                log.error(e.getMessage(), e);
                broken = true;
            } finally {
                redisDataSource.returnResource(shardedJedis, broken);
            }
            return result;
        }
        /**
         * 返回名称为key的string的value的子串
         * @param key
         * @param start
         * @param end
         * @return
         */
        public String substr(String key, int start, int end) {
            String result = null;
            ShardedJedis shardedJedis = redisDataSource.getRedisClient();
            if (shardedJedis == null) {
                return result;
            }
            boolean broken = false;
            try {
                result = shardedJedis.substr(key, start, end);
    
            } catch (Exception e) {
                log.error(e.getMessage(), e);
                broken = true;
            } finally {
                redisDataSource.returnResource(shardedJedis, broken);
            }
            return result;
        }
        /**
         * 将哈希表 key 中的域 field 的值设为 value 
         * @param key
         * @param field
         * @param value
         * @return
         */
        public Long hset(String key, String field, String value) {
            Long result = null;
            ShardedJedis shardedJedis = redisDataSource.getRedisClient();
            if (shardedJedis == null) {
                return result;
            }
            boolean broken = false;
            try {
                result = shardedJedis.hset(key, field, value);
    
            } catch (Exception e) {
                log.error(e.getMessage(), e);
                broken = true;
            } finally {
                redisDataSource.returnResource(shardedJedis, broken);
            }
            return result;
        }
        /**
         * 返回哈希表 key 中给定域 field 的值
         * @param key
         * @param field
         * @return
         */
        public String hget(String key, String field) {
            String result = null;
            ShardedJedis shardedJedis = redisDataSource.getRedisClient();
            if (shardedJedis == null) {
                return result;
            }
            boolean broken = false;
            try {
                result = shardedJedis.hget(key, field);
    
            } catch (Exception e) {
                log.error(e.getMessage(), e);
                broken = true;
            } finally {
                redisDataSource.returnResource(shardedJedis, broken);
            }
            return result;
        }
        /**
         * 同时将多个 field-value (域-值)对设置到哈希表 key 中。
         * @param key
         * @param hash
         * @return
         */
        public String hmset(String key, Map<String, String> hash) {
            String result = null;
            ShardedJedis shardedJedis = redisDataSource.getRedisClient();
            if (shardedJedis == null) {
                return result;
            }
            boolean broken = false;
            try {
                result = shardedJedis.hmset(key, hash);
    
            } catch (Exception e) {
                log.error(e.getMessage(), e);
                broken = true;
            } finally {
                redisDataSource.returnResource(shardedJedis, broken);
            }
            return result;
        }
        /**
         * 返回哈希表 key 中，一个或多个给定域的值
         * @param key
         * @param fields
         * @return
         */
        public List<String> hmget(String key, String... fields) {
            List<String> result = null;
            ShardedJedis shardedJedis = redisDataSource.getRedisClient();
            if (shardedJedis == null) {
                return result;
            }
            boolean broken = false;
            try {
                result = shardedJedis.hmget(key, fields);
    
            } catch (Exception e) {
                log.error(e.getMessage(), e);
                broken = true;
            } finally {
                redisDataSource.returnResource(shardedJedis, broken);
            }
            return result;
        }
        /**
         * 为哈希表 key 中的域 field 的值加上增量 value
         * @param key
         * @param field
         * @param value
         * @return
         */
        public Long hincrBy(String key, String field, long value) {
            Long result = null;
            ShardedJedis shardedJedis = redisDataSource.getRedisClient();
            if (shardedJedis == null) {
                return result;
            }
            boolean broken = false;
            try {
                result = shardedJedis.hincrBy(key, field, value);
    
            } catch (Exception e) {
                log.error(e.getMessage(), e);
                broken = true;
            } finally {
                redisDataSource.returnResource(shardedJedis, broken);
            }
            return result;
        }
        /**
         * 查看哈希表 key 中，给定域 field 是否存在。
         * @param key
         * @param field
         * @return
         */
        public Boolean hexists(String key, String field) {
            Boolean result = false;
            ShardedJedis shardedJedis = redisDataSource.getRedisClient();
            if (shardedJedis == null) {
                return result;
            }
            boolean broken = false;
            try {
                result = shardedJedis.hexists(key, field);
    
            } catch (Exception e) {
                log.error(e.getMessage(), e);
                broken = true;
            } finally {
                redisDataSource.returnResource(shardedJedis, broken);
            }
            return result;
        }
        /**
         * 删除key
         * @param key
         * @return
         */
        public Long del(String key) {
            Long result = null;
            ShardedJedis shardedJedis = redisDataSource.getRedisClient();
            if (shardedJedis == null) {
                return result;
            }
            boolean broken = false;
            try {
                result = shardedJedis.del(key);
    
            } catch (Exception e) {
                log.error(e.getMessage(), e);
                broken = true;
            } finally {
                redisDataSource.returnResource(shardedJedis, broken);
            }
            return result;
        }
        /**
         * 删除哈希表 key 中的一个或多个指定域。
         * @param key
         * @param field
         * @return
         */
        public Long hdel(String key, String field) {
            Long result = null;
            ShardedJedis shardedJedis = redisDataSource.getRedisClient();
            if (shardedJedis == null) {
                return result;
            }
            boolean broken = false;
            try {
                result = shardedJedis.hdel(key, field);
    
            } catch (Exception e) {
                log.error(e.getMessage(), e);
                broken = true;
            } finally {
                redisDataSource.returnResource(shardedJedis, broken);
            }
            return result;
        }
        /**
         * 返回哈希表 key 中域的数量。
         * @param key
         * @return
         */
        public Long hlen(String key) {
            Long result = null;
            ShardedJedis shardedJedis = redisDataSource.getRedisClient();
            if (shardedJedis == null) {
                return result;
            }
            boolean broken = false;
            try {
                result = shardedJedis.hlen(key);
    
            } catch (Exception e) {
                log.error(e.getMessage(), e);
                broken = true;
            } finally {
                redisDataSource.returnResource(shardedJedis, broken);
            }
            return result;
        }
        /**
         * 返回哈希表 key 中的所有域。
         * @param key
         * @return
         */
        public Set<String> hkeys(String key) {
            Set<String> result = null;
            ShardedJedis shardedJedis = redisDataSource.getRedisClient();
            if (shardedJedis == null) {
                return result;
            }
            boolean broken = false;
            try {
                result = shardedJedis.hkeys(key);
    
            } catch (Exception e) {
                log.error(e.getMessage(), e);
                broken = true;
            } finally {
                redisDataSource.returnResource(shardedJedis, broken);
            }
            return result;
        }
        /**
         * 返回哈希表 key 中所有域的值。
         * @param key
         * @return
         */
        public List<String> hvals(String key) {
            List<String> result = null;
            ShardedJedis shardedJedis = redisDataSource.getRedisClient();
            if (shardedJedis == null) {
                return result;
            }
            boolean broken = false;
            try {
                result = shardedJedis.hvals(key);
    
            } catch (Exception e) {
                log.error(e.getMessage(), e);
                broken = true;
            } finally {
                redisDataSource.returnResource(shardedJedis, broken);
            }
            return result;
        }
         /**
          * 返回哈希表 key 中，所有的域和值。
          * @param key
          * @return
          */
        public Map<String, String> hgetAll(String key) {
            Map<String, String> result = null;
            ShardedJedis shardedJedis = redisDataSource.getRedisClient();
            if (shardedJedis == null) {
                return result;
            }
            boolean broken = false;
            try {
                result = shardedJedis.hgetAll(key);
    
            } catch (Exception e) {
                log.error(e.getMessage(), e);
                broken = true;
            } finally {
                redisDataSource.returnResource(shardedJedis, broken);
            }
            return result;
        }
    
        // ================list ====== l表示 list或 left, r表示right====================
        /**
         * 将一个或多个值 value 插入到列表 key 的表尾(最右边)
         * @param key
         * @param string
         * @return
         */
        public Long rpush(String key, String string) {
            Long result = null;
            ShardedJedis shardedJedis = redisDataSource.getRedisClient();
            if (shardedJedis == null) {
                return result;
            }
            boolean broken = false;
            try {
                result = shardedJedis.rpush(key, string);
    
            } catch (Exception e) {
                log.error(e.getMessage(), e);
                broken = true;
            } finally {
                redisDataSource.returnResource(shardedJedis, broken);
            }
            return result;
        }
        /**
         * 将一个或多个值 value 插入到列表 key 的表头
         * @param key
         * @param string
         * @return
         */
        public Long lpush(String key, String string) {
            Long result = null;
            ShardedJedis shardedJedis = redisDataSource.getRedisClient();
            if (shardedJedis == null) {
                return result;
            }
            boolean broken = false;
            try {
                result = shardedJedis.lpush(key, string);
    
            } catch (Exception e) {
                log.error(e.getMessage(), e);
                broken = true;
            } finally {
                redisDataSource.returnResource(shardedJedis, broken);
            }
            return result;
        }
        /**
         * 返回列表 key 的长度。
         * @param key
         * @return
         */
        public Long llen(String key) {
            Long result = null;
            ShardedJedis shardedJedis = redisDataSource.getRedisClient();
            if (shardedJedis == null) {
                return result;
            }
            boolean broken = false;
            try {
                result = shardedJedis.llen(key);
    
            } catch (Exception e) {
                log.error(e.getMessage(), e);
                broken = true;
            } finally {
                redisDataSource.returnResource(shardedJedis, broken);
            }
            return result;
        }
         /**
          * 返回列表 key 中指定区间内的元素，区间以偏移量 start 和 stop 指定
          * @param key
          * @param start
          * @param end
          * @return
          */
        public List<String> lrange(String key, long start, long end) {
            List<String> result = null;
            ShardedJedis shardedJedis = redisDataSource.getRedisClient();
            if (shardedJedis == null) {
                return result;
            }
            boolean broken = false;
            try {
                result = shardedJedis.lrange(key, start, end);
    
            } catch (Exception e) {
                log.error(e.getMessage(), e);
                broken = true;
            } finally {
                redisDataSource.returnResource(shardedJedis, broken);
            }
            return result;
        }
        /**
         * 只保留指定区间内的元素，不在指定区间之内的元素都将被删除
         * @param key
         * @param start
         * @param end
         * @return
         */
        public String ltrim(String key, long start, long end) {
            String result = null;
            ShardedJedis shardedJedis = redisDataSource.getRedisClient();
            if (shardedJedis == null) {
                return result;
            }
            boolean broken = false;
            try {
                result = shardedJedis.ltrim(key, start, end);
    
            } catch (Exception e) {
                log.error(e.getMessage(), e);
                broken = true;
            } finally {
                redisDataSource.returnResource(shardedJedis, broken);
            }
            return result;
        }
        /**
         * 返回列表 key 中，下标为 index 的元素。
         * @param key
         * @param index
         * @return
         */
        public String lindex(String key, long index) {
            String result = null;
            ShardedJedis shardedJedis = redisDataSource.getRedisClient();
            if (shardedJedis == null) {
                return result;
            }
            boolean broken = false;
            try {
                result = shardedJedis.lindex(key, index);
    
            } catch (Exception e) {
                log.error(e.getMessage(), e);
                broken = true;
            } finally {
                redisDataSource.returnResource(shardedJedis, broken);
            }
            return result;
        }
        /**
         * 将列表 key 下标为 index 的元素的值设置为 value
         * @param key
         * @param index
         * @param value
         * @return
         */
        public String lset(String key, long index, String value) {
            String result = null;
            ShardedJedis shardedJedis = redisDataSource.getRedisClient();
            if (shardedJedis == null) {
                return result;
            }
            boolean broken = false;
            try {
                result = shardedJedis.lset(key, index, value);
    
            } catch (Exception e) {
                log.error(e.getMessage(), e);
                broken = true;
            } finally {
                redisDataSource.returnResource(shardedJedis, broken);
            }
            return result;
        }
    
      /**
       * 移除并返回列表 key 的头元素
       * @param key
       * @return
       */
        public String lpop(String key) {
            String result = null;
            ShardedJedis shardedJedis = redisDataSource.getRedisClient();
            if (shardedJedis == null) {
                return result;
            }
            boolean broken = false;
            try {
                result = shardedJedis.lpop(key);
    
            } catch (Exception e) {
                log.error(e.getMessage(), e);
                broken = true;
            } finally {
                redisDataSource.returnResource(shardedJedis, broken);
            }
            return result;
        }
        /**
         * 移除并返回列表 key 的尾元素。
         * @param key
         * @return
         */
        public String rpop(String key) {
            String result = null;
            ShardedJedis shardedJedis = redisDataSource.getRedisClient();
            if (shardedJedis == null) {
                return result;
            }
            boolean broken = false;
            try {
                result = shardedJedis.rpop(key);
    
            } catch (Exception e) {
                log.error(e.getMessage(), e);
                broken = true;
            } finally {
                redisDataSource.returnResource(shardedJedis, broken);
            }
            return result;
        }
    
        //return 1 add a not exist value ,
        //return 0 add a exist value
        /**
         * 将一个或多个 member 元素加入到集合 key 当中
         * @param key
         * @param member
         * @return
         */
        public Long sadd(String key, String member) {
            Long result = null;
            ShardedJedis shardedJedis = redisDataSource.getRedisClient();
            if (shardedJedis == null) {
                return result;
            }
            boolean broken = false;
            try {
                result = shardedJedis.sadd(key, member);
    
            } catch (Exception e) {
                log.error(e.getMessage(), e);
                broken = true;
            } finally {
                redisDataSource.returnResource(shardedJedis, broken);
            }
            return result;
        }
        /**
         * 返回集合 key 中的所有成员。
         * @param key
         * @return
         */
        public Set<String> smembers(String key) {
            Set<String> result = null;
            ShardedJedis shardedJedis = redisDataSource.getRedisClient();
            if (shardedJedis == null) {
                return result;
            }
            boolean broken = false;
            try {
                result = shardedJedis.smembers(key);
    
            } catch (Exception e) {
                log.error(e.getMessage(), e);
                broken = true;
            } finally {
                redisDataSource.returnResource(shardedJedis, broken);
            }
            return result;
        }
    
        /**
         * 返回集合 key 的基数(集合中元素的数量)
         * @param key
         * @return
         */
        public Long scard(String key) {
            ShardedJedis shardedJedis = redisDataSource.getRedisClient();
            Long result = null;
            if (shardedJedis == null) {
                return result;
            }
            boolean broken = false;
            try {
                result = shardedJedis.scard(key);
    
            } catch (Exception e) {
                log.error(e.getMessage(), e);
                broken = true;
            } finally {
                redisDataSource.returnResource(shardedJedis, broken);
            }
            return result;
        }
        /**
         * 将一个或多个 member 元素及其 score 值加入到有序集 key 当中
         * @param key
         * @param score
         * @param member
         * @return
         */
        public Long zadd(String key, double score, String member) {
            Long result = null;
            ShardedJedis shardedJedis = redisDataSource.getRedisClient();
            if (shardedJedis == null) {
                return result;
            }
            boolean broken = false;
            try {
                result = shardedJedis.zadd(key, score, member);
            } catch (Exception e) {
                log.error(e.getMessage(), e);
                broken = true;
            } finally {
                redisDataSource.returnResource(shardedJedis, broken);
            }
            return result;
        }
        /**
         * 返回有序集 key 中，指定区间内的成员
         * @param key
         * @param start
         * @param end
         * @return
         */
        public Set<String> zrange(String key, int start, int end) {
            Set<String> result = null;
            ShardedJedis shardedJedis = redisDataSource.getRedisClient();
            if (shardedJedis == null) {
                return result;
            }
            boolean broken = false;
            try {
                result = shardedJedis.zrange(key, start, end);
            } catch (Exception e) {
                log.error(e.getMessage(), e);
                broken = true;
            } finally {
                redisDataSource.returnResource(shardedJedis, broken);
            }
            return result;
        }
        /**
         * 移除有序集 key 中的一个或多个成员，不存在的成员将被忽略
         * @param key
         * @param member
         * @return
         */
        public Long zrem(String key, String member) {
            Long result = null;
            ShardedJedis shardedJedis = redisDataSource.getRedisClient();
            if (shardedJedis == null) {
                return result;
            }
            boolean broken = false;
            try {
                result = shardedJedis.zrem(key, member);
            } catch (Exception e) {
                log.error(e.getMessage(), e);
                broken = true;
            } finally {
                redisDataSource.returnResource(shardedJedis, broken);
            }
            return result;
        }
        /**
         * 为有序集 key 的成员 member 的 score 值加上增量 member 。
         * @param key
         * @param score
         * @param member
         * @return
         */
        public Double zincrby(String key, double score, String member) {
            Double result = null;
            ShardedJedis shardedJedis = redisDataSource.getRedisClient();
            if (shardedJedis == null) {
                return result;
            }
            boolean broken = false;
            try {
    
                result = shardedJedis.zincrby(key, score, member);
    
            } catch (Exception e) {
                log.error(e.getMessage(), e);
                broken = true;
            } finally {
                redisDataSource.returnResource(shardedJedis, broken);
            }
            return result;
        }
        /**
         * 回有序集 key 中成员 member 的排名。其中有序集成员按 score 值递增(从小到大)顺序排列
         * @param key
         * @param member
         * @return
         */
        public Long zrank(String key, String member) {
            Long result = null;
            ShardedJedis shardedJedis = redisDataSource.getRedisClient();
            if (shardedJedis == null) {
                return result;
            }
            boolean broken = false;
            try {
    
                result = shardedJedis.zrank(key, member);
    
            } catch (Exception e) {
                log.error(e.getMessage(), e);
                broken = true;
            } finally {
                redisDataSource.returnResource(shardedJedis, broken);
            }
            return result;
        }
        /**
         * 返回有序集 key 的基数
         * @param key
         * @return
         */
    	    public Long zcard(String key) {
            Long result = null;
            ShardedJedis shardedJedis = redisDataSource.getRedisClient();
            if (shardedJedis == null) {
                return result;
            }
            boolean broken = false;
            try {
    
                result = shardedJedis.zcard(key);
    
            } catch (Exception e) {
                log.error(e.getMessage(), e);
                broken = true;
            } finally {
                redisDataSource.returnResource(shardedJedis, broken);
            }
            return result;
        }
        /**
         * 返回有序集 key 中，成员 member 的 score 值。
         * @param key
         * @param member
         * @return
         */
        public Double zscore(String key, String member) {
            Double result = null;
            ShardedJedis shardedJedis = redisDataSource.getRedisClient();
            if (shardedJedis == null) {
                return result;
            }
            boolean broken = false;
            try {
    
                result = shardedJedis.zscore(key, member);
    
            } catch (Exception e) {
                log.error(e.getMessage(), e);
                broken = true;
            } finally {
                redisDataSource.returnResource(shardedJedis, broken);
            }
            return result;
        }
    
       /**
        * 返回有序集 key 中， score 值在 min 和 max 之间(默认包括 score 值等于 min 或 max )的成员的数量
        * @param key
        * @param min
        * @param max
        * @return
        */
        public Long zcount(String key, double min, double max) {
            Long result = null;
            ShardedJedis shardedJedis = redisDataSource.getRedisClient();
            if (shardedJedis == null) {
                return result;
            }
            boolean broken = false;
            try {
    
                result = shardedJedis.zcount(key, min, max);
    
            } catch (Exception e) {
                log.error(e.getMessage(), e);
                broken = true;
            } finally {
                redisDataSource.returnResource(shardedJedis, broken);
            }
            return result;
        }
    
        /**
         * 批量存储
         * @param key
         * @param value
         * @return
         */
        public String set(byte[] key, byte[] value) {
            String result = null;
            ShardedJedis shardedJedis = redisDataSource.getRedisClient();
            if (shardedJedis == null) {
                return result;
            }
            boolean broken = false;
            try {
    
                result = shardedJedis.set(key, value);
    
            } catch (Exception e) {
                log.error(e.getMessage(), e);
                broken = true;
            } finally {
                redisDataSource.returnResource(shardedJedis, broken);
            }
            return result;
        }
        /**
         * 获取多个key的值
         * @param key
         * @return
         */
        public byte[] get(byte[] key) {
            byte[] result = null;
            ShardedJedis shardedJedis = redisDataSource.getRedisClient();
            if (shardedJedis == null) {
                return result;
            }
            boolean broken = false;
            try {
    
                result = shardedJedis.get(key);
    
            } catch (Exception e) {
                log.error(e.getMessage(), e);
                broken = true;
            } finally {
                redisDataSource.returnResource(shardedJedis, broken);
            }
            return result;
        }
        /**
         * 判断多个key存在
         * @param key
         * @return
         */
        public Boolean exists(byte[] key) {
            Boolean result = false;
            ShardedJedis shardedJedis = redisDataSource.getRedisClient();
            if (shardedJedis == null) {
                return result;
            }
            boolean broken = false;
            try {
    
                result = shardedJedis.exists(key);
    
            } catch (Exception e) {
                log.error(e.getMessage(), e);
                broken = true;
            } finally {
                redisDataSource.returnResource(shardedJedis, broken);
            }
            return result;
        }
    
        public Long expire(byte[] key, int seconds) {
            Long result = null;
            ShardedJedis shardedJedis = redisDataSource.getRedisClient();
            if (shardedJedis == null) {
                return result;
            }
            boolean broken = false;
            try {
    
                result = shardedJedis.expire(key, seconds);
    
            } catch (Exception e) {
                log.error(e.getMessage(), e);
                broken = true;
            } finally {
                redisDataSource.returnResource(shardedJedis, broken);
            }
            return result;
        }
    
        public Long expireAt(byte[] key, long unixTime) {
            Long result = null;
            ShardedJedis shardedJedis = redisDataSource.getRedisClient();
            if (shardedJedis == null) {
                return result;
            }
            boolean broken = false;
            try {
    
                result = shardedJedis.expireAt(key, unixTime);
    
            } catch (Exception e) {
                log.error(e.getMessage(), e);
                broken = true;
            } finally {
                redisDataSource.returnResource(shardedJedis, broken);
            }
            return result;
        }
    
        public Long ttl(byte[] key) {
            Long result = null;
            ShardedJedis shardedJedis = redisDataSource.getRedisClient();
            if (shardedJedis == null) {
                return result;
            }
            boolean broken = false;
            try {
    
                result = shardedJedis.ttl(key);
    
            } catch (Exception e) {
                log.error(e.getMessage(), e);
                broken = true;
            } finally {
                redisDataSource.returnResource(shardedJedis, broken);
            }
            return result;
        }
    
        public Long append(byte[] key, byte[] value) {
            Long result = null;
            ShardedJedis shardedJedis = redisDataSource.getRedisClient();
            if (shardedJedis == null) {
                return result;
            }
            boolean broken = false;
            try {
    
                result = shardedJedis.append(key, value);
    
            } catch (Exception e) {
                log.error(e.getMessage(), e);
                broken = true;
            } finally {
                redisDataSource.returnResource(shardedJedis, broken);
            }
            return result;
        }
    
       /**
        * 批量增加到hash
        * @param key
        * @param field
        * @param value
        * @return
        */
        public Long hset(byte[] key, byte[] field, byte[] value) {
            Long result = null;
            ShardedJedis shardedJedis = redisDataSource.getRedisClient();
            if (shardedJedis == null) {
                return result;
            }
            boolean broken = false;
            try {
    
                result = shardedJedis.hset(key, field, value);
    
            } catch (Exception e) {
                log.error(e.getMessage(), e);
                broken = true;
            } finally {
                redisDataSource.returnResource(shardedJedis, broken);
            }
            return result;
        }
        /**
         * 批量获取field域值
         * @param key
         * @param field
         * @return
         */
        public byte[] hget(byte[] key, byte[] field) {
            byte[] result = null;
            ShardedJedis shardedJedis = redisDataSource.getRedisClient();
            if (shardedJedis == null) {
                return result;
            }
            boolean broken = false;
            try {
    
                result = shardedJedis.hget(key, field);
    
            } catch (Exception e) {
                log.error(e.getMessage(), e);
                broken = true;
            } finally {
                redisDataSource.returnResource(shardedJedis, broken);
            }
            return result;
        }
    
        public String hmset(byte[] key, Map<byte[], byte[]> hash) {
            String result = null;
            ShardedJedis shardedJedis = redisDataSource.getRedisClient();
            if (shardedJedis == null) {
                return result;
            }
            boolean broken = false;
            try {
    
                result = shardedJedis.hmset(key, hash);
    
            } catch (Exception e) {
    
                log.error(e.getMessage(), e);
                broken = true;
            } finally {
                redisDataSource.returnResource(shardedJedis, broken);
            }
            return result;
        }
    
        public List<byte[]> hmget(byte[] key, byte[]... fields) {
            List<byte[]> result = null;
            ShardedJedis shardedJedis = redisDataSource.getRedisClient();
            if (shardedJedis == null) {
                return result;
            }
            boolean broken = false;
            try {
    
                result = shardedJedis.hmget(key, fields);
    
            } catch (Exception e) {
    
                log.error(e.getMessage(), e);
                broken = true;
            } finally {
                redisDataSource.returnResource(shardedJedis, broken);
            }
            return result;
        }
    
        
        public Boolean hexists(byte[] key, byte[] field) {
            Boolean result = false;
            ShardedJedis shardedJedis = redisDataSource.getRedisClient();
            if (shardedJedis == null) {
                return result;
            }
            boolean broken = false;
            try {
    
                result = shardedJedis.hexists(key, field);
    
            } catch (Exception e) {
    
                log.error(e.getMessage(), e);
                broken = true;
            } finally {
                redisDataSource.returnResource(shardedJedis, broken);
            }
            return result;
        }
        /**
         * 批量删除hash的key
         * @param key
         * @param field
         * @return
         */
        public Long hdel(byte[] key, byte[] field) {
            Long result = null;
            ShardedJedis shardedJedis = redisDataSource.getRedisClient();
            if (shardedJedis == null) {
                return result;
            }
            boolean broken = false;
            try {
    
                result = shardedJedis.hdel(key, field);
    
            } catch (Exception e) {
    
                log.error(e.getMessage(), e);
                broken = true;
            } finally {
                redisDataSource.returnResource(shardedJedis, broken);
            }
            return result;
        }
        public Long rpush(byte[] key, byte[] string) {
            Long result = null;
            ShardedJedis shardedJedis = redisDataSource.getRedisClient();
            if (shardedJedis == null) {
                return result;
            }
            boolean broken = false;
            try {
    
                result = shardedJedis.rpush(key, string);
    
            } catch (Exception e) {
    
                log.error(e.getMessage(), e);
                broken = true;
            } finally {
                redisDataSource.returnResource(shardedJedis, broken);
            }
            return result;
        }
    
        public Long lpush(byte[] key, byte[] string) {
            Long result = null;
            ShardedJedis shardedJedis = redisDataSource.getRedisClient();
            if (shardedJedis == null) {
                return result;
            }
            boolean broken = false;
            try {
    
                result = shardedJedis.lpush(key, string);
    
            } catch (Exception e) {
    
                log.error(e.getMessage(), e);
                broken = true;
            } finally {
                redisDataSource.returnResource(shardedJedis, broken);
            }
            return result;
        }
    
        public Long llen(byte[] key) {
            Long result = null;
            ShardedJedis shardedJedis = redisDataSource.getRedisClient();
            if (shardedJedis == null) {
                return result;
            }
            boolean broken = false;
            try {
    
                result = shardedJedis.llen(key);
    
            } catch (Exception e) {
    
                log.error(e.getMessage(), e);
                broken = true;
            } finally {
                redisDataSource.returnResource(shardedJedis, broken);
            }
            return result;
        }
    
        public List<byte[]> lrange(byte[] key, int start, int end) {
            List<byte[]> result = null;
            ShardedJedis shardedJedis = redisDataSource.getRedisClient();
            if (shardedJedis == null) {
                return result;
            }
            boolean broken = false;
            try {
    
                result = shardedJedis.lrange(key, start, end);
    
            } catch (Exception e) {
    
                log.error(e.getMessage(), e);
                broken = true;
            } finally {
                redisDataSource.returnResource(shardedJedis, broken);
            }
            return result;
        }
    
       
        public String lset(byte[] key, int index, byte[] value) {
            String result = null;
            ShardedJedis shardedJedis = redisDataSource.getRedisClient();
            if (shardedJedis == null) {
                return result;
            }
            boolean broken = false;
            try {
    
                result = shardedJedis.lset(key, index, value);
    
            } catch (Exception e) {
    
                log.error(e.getMessage(), e);
                broken = true;
            } finally {
                redisDataSource.returnResource(shardedJedis, broken);
            }
            return result;
        }
        public Long lrem(byte[] key, int count, byte[] value) {
            Long result = null;
            ShardedJedis shardedJedis = redisDataSource.getRedisClient();
            if (shardedJedis == null) {
                return result;
            }
            boolean broken = false;
            try {
    
                result = shardedJedis.lrem(key, count, value);
    
            } catch (Exception e) {
    
                log.error(e.getMessage(), e);
                broken = true;
            } finally {
                redisDataSource.returnResource(shardedJedis, broken);
            }
            return result;
        }
    
        public byte[] lpop(byte[] key) {
            byte[] result = null;
            ShardedJedis shardedJedis = redisDataSource.getRedisClient();
            if (shardedJedis == null) {
                return result;
            }
            boolean broken = false;
            try {
    
                result = shardedJedis.lpop(key);
    
            } catch (Exception e) {
    
                log.error(e.getMessage(), e);
                broken = true;
            } finally {
                redisDataSource.returnResource(shardedJedis, broken);
            }
            return result;
        }
    
        public byte[] rpop(byte[] key) {
            byte[] result = null;
            ShardedJedis shardedJedis = redisDataSource.getRedisClient();
            if (shardedJedis == null) {
                return result;
            }
            boolean broken = false;
            try {
    
                result = shardedJedis.rpop(key);
    
            } catch (Exception e) {
    
                log.error(e.getMessage(), e);
                broken = true;
            } finally {
                redisDataSource.returnResource(shardedJedis, broken);
            }
            return result;
        }
      /**
       *   批量增加到set
       * @param key
       * @param member
       * @return
       */
        public Long sadd(byte[] key, byte[] member) {
            Long result = null;
            ShardedJedis shardedJedis = redisDataSource.getRedisClient();
            if (shardedJedis == null) {
                return result;
            }
            boolean broken = false;
            try {
    
                result = shardedJedis.sadd(key, member);
    
            } catch (Exception e) {
    
                log.error(e.getMessage(), e);
                broken = true;
            } finally {
                redisDataSource.returnResource(shardedJedis, broken);
            }
            return result;
        }
    
        public Set<byte[]> smembers(byte[] key) {
            Set<byte[]> result = null;
            ShardedJedis shardedJedis = redisDataSource.getRedisClient();
            if (shardedJedis == null) {
                return result;
            }
            boolean broken = false;
            try {
    
                result = shardedJedis.smembers(key);
    
            } catch (Exception e) {
    
                log.error(e.getMessage(), e);
                broken = true;
            } finally {
                redisDataSource.returnResource(shardedJedis, broken);
            }
            return result;
        }
    
        public Long scard(byte[] key) {
            Long result = null;
            ShardedJedis shardedJedis = redisDataSource.getRedisClient();
            if (shardedJedis == null) {
                return result;
            }
            boolean broken = false;
            try {
    
                result = shardedJedis.scard(key);
    
            } catch (Exception e) {
    
                log.error(e.getMessage(), e);
                broken = true;
            } finally {
                redisDataSource.returnResource(shardedJedis, broken);
            }
            return result;
        }
    
        public Long zadd(byte[] key, double score, byte[] member) {
            Long result = null;
            ShardedJedis shardedJedis = redisDataSource.getRedisClient();
            if (shardedJedis == null) {
                return result;
            }
            boolean broken = false;
            try {
    
                result = shardedJedis.zadd(key, score, member);
    
            } catch (Exception e) {
    
                log.error(e.getMessage(), e);
                broken = true;
            } finally {
                redisDataSource.returnResource(shardedJedis, broken);
            }
            return result;
        }
    
       
        public Long zcard(byte[] key) {
            Long result = null;
            ShardedJedis shardedJedis = redisDataSource.getRedisClient();
            if (shardedJedis == null) {
                return result;
            }
            boolean broken = false;
            try {
    
                result = shardedJedis.zcard(key);
    
            } catch (Exception e) {
    
                log.error(e.getMessage(), e);
                broken = true;
            } finally {
                redisDataSource.returnResource(shardedJedis, broken);
            }
            return result;
        }
    
        public JedisShardInfo getShardInfo(String key) {
            ShardedJedis shardedJedis = redisDataSource.getRedisClient();
            JedisShardInfo result = null;
            if (shardedJedis == null) {
                return result;
            }
            boolean broken = false;
            try {
                result = shardedJedis.getShardInfo(key);
            } catch (Exception e) {
                log.error(e.getMessage(), e);
                broken = true;
            } finally {
                redisDataSource.returnResource(shardedJedis, broken);
            }
            return result;
        }
    
        public Collection<JedisShardInfo> getAllShardInfo() {
            ShardedJedis shardedJedis = redisDataSource.getRedisClient();
            Collection<JedisShardInfo> result = null;
            if (shardedJedis == null) {
                return result;
            }
            boolean broken = false;
            try {
                result = shardedJedis.getAllShardInfo();
    
            } catch (Exception e) {
                log.error(e.getMessage(), e);
                broken = true;
            } finally {
                redisDataSource.returnResource(shardedJedis, broken);
            }
            return result;
        }
    
        public Collection<Jedis> getAllShards() {
            ShardedJedis shardedJedis = redisDataSource.getRedisClient();
            Collection<Jedis> result = null;
            if (shardedJedis == null) {
                return result;
            }
            boolean broken = false;
            try {
                result = shardedJedis.getAllShards();
    
            } catch (Exception e) {
                log.error(e.getMessage(), e);
                broken = true;
            } finally {
                redisDataSource.returnResource(shardedJedis, broken);
            }
            return result;
        }
    
    }

三.配置spring xml文件

## 四.代码中的使用，原则就是在执行service时，先通过key到redis里检测是否存在，如果存在则在redis里去数据,如果没有则到数据库去数据,然后存到redis里 ##

public class StudentinfoServiceImpl implements StudentinfoService{
    	
    	private StudentinfoDao studentinfoDao;
    	
    	private RedisClientTemplate redisClientTemplate;
    	
    	private static final ObjectMapper mapper=new ObjectMapper();
    	
    	public List<Studentinfo> getStudentinfoByStu(Studentinfo stu) {
    		String key="getStudentinfoByStu:usernumber:"+stu.getUsernumber()+":name:"+stu.getName()+":idnumber:"+stu.getIdnumber();
    		try {
    			boolean flag=redisClientTemplate.exists(key);
    			if(flag){
    				String stuJsonStr=redisClientTemplate.get(key);
    				List<Studentinfo> list=mapper.readValue(stuJsonStr, new TypeReference<List<Studentinfo>>() {});
    				return list;
    			}
    		} catch (Exception e) {
    			e.printStackTrace();
    		}
    		String hql="from Studentinfo where 1=1";
    		if(stu!=null){
    			if(stu.getUsernumber()!=null){
    				hql+=" and usernumber like '%"+stu.getUsernumber()+"%' ";
    			}
    		}
    		List<Studentinfo> list = studentinfoDao.getStudentinfoByStu(hql);
    		try {
    			String stuJsonStr=mapper.writeValueAsString(list);
    			redisClientTemplate.setex(key, 60, stuJsonStr);
    		} catch (Exception e) {
    			e.printStackTrace();
    		}
    		return list;
    	}
    	
    
    	public StudentinfoDao getStudentinfoDao() {
    		return studentinfoDao;
    		
    	}
    
    	public void setStudentinfoDao(StudentinfoDao studentinfoDao) {
    		this.studentinfoDao = studentinfoDao;
    	}
    
    	public RedisClientTemplate getRedisClientTemplate() {
    		return redisClientTemplate;
    	}
    
    	public void setRedisClientTemplate(RedisClientTemplate redisClientTemplate) {
    		this.redisClientTemplate = redisClientTemplate;
    	}
    
    }

[Center]: /images/20220715/e4898495d0924a90bdd367d24bc6d5e4.png