src/main/java/com/fzzy/api/Constant.java
@@ -339,11 +339,11 @@ } return null; } public static ApiCommonDevice getCommonDeviceCacheBySn(String sn) { public static synchronized ApiCommonDevice getCommonDeviceCacheBySn(String sn) { if (null == sn) return null; if (contextDeviceMap.isEmpty()) return null; log.info("在线设备:" + JSON.toJSONString(contextDeviceMap)); //log.info("在线设备:" + JSON.toJSONString(contextDeviceMap)); for (ApiCommonDevice device : contextDeviceMap.values()) { if (sn.equals(device.getSn())) return device; }