redis-java中的callback回掉机制

springboot整合redis后, 会提供StringRedisTEmplate和 RedisTemplate 两个模板类供食用, 有时候这并不能满足我们的需求, 需要使用 connect 处理, 除了 redisTemplate.getConnection() 之外, 还可以使用callback机制进行处理

具体使用: 

 @Resource(name = "shardedJedisPool")  
    private ShardedJedisPool shardedJedisPool;  
      
    @Override  
    public  T execute(ConnectionCallback action) {  
        ShardedJedis shardedJedis = null;  
        try{  
            // 从连接池中获取jedis分片对象  
            shardedJedis = shardedJedisPool.getResource();  
              
            return action.doInRedis(shardedJedis);  
              
        }catch (Exception e){  
            System.out.println(e.getMessage());  
        }finally {  
            if(null != shardedJedis){  
                shardedJedis.close();  
            }  
        }  
        return null;  
    }  
      
   /** 
     * attention:真正封装的方法，非常的简洁干脆 
     */  
    public String set(final String key, final String value){  
        return execute(new ConnectionCallback() {  
            @Override  
            public String doInRedis(  
                    ShardedJedis shardedJedis) {  
                return shardedJedis.set(key, value);  
            }  
        });  
    }  
      
    public String get(final String key){  
        return execute(new ConnectionCallback(){  
            @Override  
            public String doInRedis(ShardedJedis shardedJedis) {  
                return shardedJedis.get(key);  
            }  
        });  
    }  

保存: 

 redisTemplate.execute(new RedisCallback