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				@@ -57,7 +57,7 @@ public class CacheDataProcessor extends DeviceDataProcessor { 
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				             measuringDataMap.put(Constants.TIME_MEASURING_CODE,timeMeasuringData); 
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				             // 2,将数据缓存到Redis中 
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				             Long deviceId = data.getDeviceId(); 
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				-            String cacheKey = Constants.DATA_CACHE_PREFIX + deviceId ; 
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				+            String cacheKey = String.valueOf(deviceId); 
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				             redisUtil.set(cacheKey, JSON.toJSONString(measuringDataMap)); 
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				             // 3,将最后更新时间更新到数据库 
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				             Device update = new Device(); 
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