diff --git a/src/main/java/com/qyft/ms/app/front/cmd/business/MatrixSprayStart.java b/src/main/java/com/qyft/ms/app/front/cmd/business/MatrixSprayStart.java
index 787acb3..8346d48 100644
--- a/src/main/java/com/qyft/ms/app/front/cmd/business/MatrixSprayStart.java
+++ b/src/main/java/com/qyft/ms/app/front/cmd/business/MatrixSprayStart.java
@@ -3,7 +3,6 @@ package com.qyft.ms.app.front.cmd.business;
 import com.qyft.ms.app.device.status.SprayStatus;
 import com.qyft.ms.system.common.annotation.CommandMapping;
 import com.qyft.ms.system.common.constant.CommandStatus;
-import com.qyft.ms.system.common.constant.DeviceEventConstants;
 import com.qyft.ms.system.common.device.command.CommandFuture;
 import com.qyft.ms.system.common.device.command.DeviceCommandGenerator;
 import com.qyft.ms.system.common.device.command.FrontCommand;