diff --git a/src/main/java/com/kimgo/wepush/service/MonitorService.java b/src/main/java/com/kimgo/wepush/service/MonitorService.java
index 1b42196..e5386b8 100644
--- a/src/main/java/com/kimgo/wepush/service/MonitorService.java
+++ b/src/main/java/com/kimgo/wepush/service/MonitorService.java
@@ -9,7 +9,6 @@ import com.kimgo.wepush.request.SendQyWeChatMsgRequest;
 import com.kimgo.wepush.response.QyWeChatSendMessageApiResponse;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
-import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.scheduling.annotation.Scheduled;
 import org.springframework.stereotype.Service;
 
@@ -20,15 +19,18 @@ import java.util.List;
 
 @Service
 public class MonitorService {
-    @Autowired
-    private ApiSettingService apiSettingService;
-    @Autowired
-    private QyWeChatURLService qyWeChatURLService;
-    @Autowired
-    private TokenService tokenService;
+    private final ApiSettingService apiSettingService;
+    private final QyWeChatURLService qyWeChatURLService;
+    private final TokenService tokenService;
     private final Logger logger = LoggerFactory.getLogger(MonitorService.class);
-    @Autowired
-    private DeviceInfoDAOMapper deviceInfoDAOMapper;
+    private final DeviceInfoDAOMapper deviceInfoDAOMapper;
+
+    public MonitorService(ApiSettingService apiSettingService, QyWeChatURLService qyWeChatURLService, TokenService tokenService, DeviceInfoDAOMapper deviceInfoDAOMapper) {
+        this.apiSettingService = apiSettingService;
+        this.qyWeChatURLService = qyWeChatURLService;
+        this.tokenService = tokenService;
+        this.deviceInfoDAOMapper = deviceInfoDAOMapper;
+    }
 
     @Scheduled(fixedDelay = 480000)
     public void monitorOnlineDevices() {