redis 用scan 代替keys,hgetAll

                /**
                
     *  
     * HSCAN 命令用于迭代哈希键中的键值对。
     * @Title: getSortedSetSize
     * @Description:
     * 
                @param
                 key
     * 
                @return
                
     * 
                @return
                 long
     * 
                @author
                   2019-1-16 上午10:17:03
     
                */
                public
                static Map<String, String> hscan(int dbIndex,String key,int pageSize){
        Map<String, String> map = new HashMap<String, String>();
        Jedis jedis = null;        
        try {
            jedis = getJedis();
            jedis.select(dbIndex);
            ScanParams sp = new ScanParams();
              sp.count(pageSize);//每次多少条  //可以设置模糊查询             
              loop(map, key, jedis, "0", sp);    
        } catch (Exception e) {
            logger_xt_err.error(e.getMessage());
            returnnull;
        }finally{
            // 返还到连接池if(jedis!=null)close(jedis); 
        }
        return map;
    } 
    
    
    publicstatic Map<String, String> loop(Map<String, String> mapList, String key, Jedis jedis, String cursor,
            ScanParams sp) {
        try {
            ScanResult<Entry<String, String>> map = jedis.hscan(key, cursor, sp);
            cursor = map.getStringCursor();
            for (Entry<String, String> en : map.getResult()) {
                mapList.put(en.getKey(), en.getValue());
            }
            System.out.println("cursor:" + cursor);
        } catch (Exception e) {
            e.printStackTrace();
            returnnull;
        }

        if (!"0".equals(cursor)) {
            loop(mapList, key, jedis, cursor, sp);
        }
        return mapList;
    }