diff --git a/iot-machine-state-event-generator-job/src/main/java/com/qniao/iot/machine/event/generator/job/IotMachineEventGeneratorJob.java b/iot-machine-state-event-generator-job/src/main/java/com/qniao/iot/machine/event/generator/job/IotMachineEventGeneratorJob.java
index d8e91d0..db4d2ff 100644
--- a/iot-machine-state-event-generator-job/src/main/java/com/qniao/iot/machine/event/generator/job/IotMachineEventGeneratorJob.java
+++ b/iot-machine-state-event-generator-job/src/main/java/com/qniao/iot/machine/event/generator/job/IotMachineEventGeneratorJob.java
@@ -81,7 +81,7 @@ public class IotMachineEventGeneratorJob {
                     private ValueState<JSON> deviceState;
 
                     @Override
-                    public void open(Configuration parameters) throws SQLException, IOException {
+                    public void open(Configuration parameters) throws SQLException {
                         // 必须在 open 生命周期初始化
                         // 获取所有设备的最新状态
                         List<DeviceState> deviceStateList = Db.use().query(sql, DeviceState.class);