diff --git a/cctp-atu/atu-upper-computer/src/main/java/net/northking/cctp/upperComputer/deviceManager/screen/AndroidScreenResponseThread.java b/cctp-atu/atu-upper-computer/src/main/java/net/northking/cctp/upperComputer/deviceManager/screen/AndroidScreenResponseThread.java
index b7e7fd4..9ebd7b7 100644
--- a/cctp-atu/atu-upper-computer/src/main/java/net/northking/cctp/upperComputer/deviceManager/screen/AndroidScreenResponseThread.java
+++ b/cctp-atu/atu-upper-computer/src/main/java/net/northking/cctp/upperComputer/deviceManager/screen/AndroidScreenResponseThread.java
@@ -15,6 +15,7 @@ import javax.websocket.Session;
 import java.io.DataInput;
 import java.io.IOException;
 import java.util.HashMap;
+import java.util.Iterator;
 import java.util.Map;
 
 public class AndroidScreenResponseThread extends ImageScreenResponse {
@@ -109,7 +110,9 @@ public class AndroidScreenResponseThread extends ImageScreenResponse {
                         }
                         //有后端会话则给后端推送屏幕图片
                         if (!CollectionUtils.isEmpty(webSessions)) {
-                            for (Session webSession : webSessions) {
+                            Iterator<Session> iterator = webSessions.iterator();
+                            while (iterator.hasNext()) {
+                                Session webSession = iterator.next();
                                 if (webSession.isOpen()) {
                                     if (sendDeviceStatus) {
                                         Map<String, Object> result = new HashMap<>();
@@ -117,12 +120,10 @@ public class AndroidScreenResponseThread extends ImageScreenResponse {
                                         SessionUtils.sendMessageInitiative(webSession, ResponseCmd.DEVICE_STATUS, adbDevice.getSerial(), result, "设备连接失败");
                                         sendDeviceStatus = false;
                                     }
-                                    logger.info("设备【{}】发送图片到微服务：{}张",adbDevice.getSerial(),send++);
                                     SessionUtils.sendBinary(webSession, this.lastData);
-                                    logger.info("设备【{}】发送图片到微服务完成：{}张",adbDevice.getSerial(),send);
                                 } else {
                                     logger.warn("推送到web端的session已经断开，sessionId:{}",webSession.getId());
-                                    //todo:操作一下，去掉webSessions里面的无效session
+                                    iterator.remove();
                                 }
                             }
                         }