diff --git a/src/main/java/com/telpo/iotgateway/server/IotCommunication.java b/src/main/java/com/telpo/iotgateway/server/IotCommunication.java
index 6a51cd5..0fda5b8 100644
--- a/src/main/java/com/telpo/iotgateway/server/IotCommunication.java
+++ b/src/main/java/com/telpo/iotgateway/server/IotCommunication.java
@@ -9,18 +9,12 @@ import com.aliyuncs.exceptions.ClientException;
 import com.aliyuncs.exceptions.ServerException;
 import com.aliyuncs.profile.DefaultProfile;
 import lombok.extern.slf4j.Slf4j;
-import okhttp3.OkHttpClient;
 import org.apache.commons.codec.binary.Base64;
-import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.core.env.ConfigurableEnvironment;
 import org.springframework.stereotype.Component;
 
 import javax.crypto.Mac;
 import javax.crypto.spec.SecretKeySpec;
-import javax.jms.*;
-import javax.naming.NamingException;
-import java.time.LocalDateTime;
-import java.util.Map;
 import com.aliyuncs.http.MethodType;
 
 /**