Redis中用scan代替keys查找

好多人不知道在java中如何 使用  Redistemple 操作 scan ，今天我给出一种实现方式：

	
@Resource(name = "redisTemplate")	
private RedisTemplate redisTemplate;	
/**	
     * 删除登录限制redis	
     * @return	
     */	
    @RequesMapping(value = "/redis/handle")	
    public JsonResult redisHandle() {	
        if (StringUtils.equals(currentEnv, Constants.ENV.TEST)) {	
            final Set keys = scan("smscode:phoneno:*");	
            if (!ObjectUtils.isEmpty(keys)) {	
                log.info("delete keys{}", keys);	
                for (Object key : keys) {	
                    redisTemplate.delete(key);	
                }	
            }	
        }	
        return JsonResult.buildSuccess();	

	
    }    	
    	
public Set<String> scan(String key) {	
        return (Set<String>) redisTemplate.execute((RedisCallback<Set<String>>) connection -> {	
            Set<String> keys = Sets.newHashSet();	

	
            JedisCommands commands = (JedisCommands) connection.getNativeConnection();	
            MultiKeyCommands multiKeyCommands = (MultiKeyCommands) commands;	

	
            ScanParams scanParams = new ScanParams();	
            scanParams.match(key);	
            scanParams.count(1000);	
            ScanResult<String> scan = multiKeyCommands.scan("0", scanParams);	
            while (null != scan.getStringCursor()) {	
                keys.addAll(scan.getResult());	
                if (!"0".equals(scan.getStringCursor())) {	
                    scan = multiKeyCommands.scan(scan.getStringCursor(), scanParams);	
                    continue;	
                } else {	
                    break;	
                }	
            }	

	
            return keys;	
        });	
    }