diff --git a/src/main/java/com/hisense/monitormanage/service/MonitorService.java b/src/main/java/com/hisense/monitormanage/service/MonitorService.java
index c5c1653..28e3e6d 100644
--- a/src/main/java/com/hisense/monitormanage/service/MonitorService.java
+++ b/src/main/java/com/hisense/monitormanage/service/MonitorService.java
@@ -227,8 +227,7 @@ public class MonitorService {
                     picture.setPicUrl(picUrl);
                     /*picture.setInsertTime(new Date());
                     channelPictureMapper.insert(picture);*/
-                    ChannelPicture id = channelPictureMapper.selectById(channelCode);
-                    if (id == null){
+                    if (channelCode == null){
                         channelPictureMapper.insert(picture);
                     }else {
                         QueryWrapper<ChannelPicture> queryWrapper = new QueryWrapper<>();
@@ -270,8 +269,7 @@ public class MonitorService {
                     picture.setPicUrl(picUrl);
                     /*picture.setInsertTime(new Date());
                     channelPictureMapper.insert(picture);*/
-                    ChannelPicture id = channelPictureMapper.selectById(channelCode);
-                    if (id == null){
+                    if (channelCode == null){
                         channelPictureMapper.insert(picture);
                     }else {
                         QueryWrapper<ChannelPicture> queryWrapper = new QueryWrapper<>();
@@ -313,8 +311,7 @@ public class MonitorService {
                     picture.setPicUrl(picUrl);
                     /*picture.setInsertTime(new Date());
                     channelPictureMapper.insert(picture);*/
-                    ChannelPicture id = channelPictureMapper.selectById(channelCode);
-                    if (id == null){
+                    if (channelCode == null){
                         channelPictureMapper.insert(picture);
                     }else {
                         QueryWrapper<ChannelPicture> queryWrapper = new QueryWrapper<>();
@@ -356,8 +353,7 @@ public class MonitorService {
                     picture.setPicUrl(picUrl);
                     /*picture.setInsertTime(new Date());
                     channelPictureMapper.insert(picture);*/
-                    ChannelPicture id = channelPictureMapper.selectById(channelCode);
-                    if (id == null){
+                    if (channelCode == null){
                         channelPictureMapper.insert(picture);
                     }else {
                         QueryWrapper<ChannelPicture> queryWrapper = new QueryWrapper<>();
@@ -399,8 +395,7 @@ public class MonitorService {
                     picture.setPicUrl(picUrl);
                     /*picture.setInsertTime(new Date());
                     channelPictureMapper.insert(picture);*/
-                    ChannelPicture id = channelPictureMapper.selectById(channelCode);
-                    if (id == null){
+                    if (channelCode == null){
                         channelPictureMapper.insert(picture);
                     }else {
                         QueryWrapper<ChannelPicture> queryWrapper = new QueryWrapper<>();
@@ -442,8 +437,7 @@ public class MonitorService {
                     picture.setPicUrl(picUrl);
                     /*picture.setInsertTime(new Date());
                     channelPictureMapper.insert(picture);*/
-                    ChannelPicture id = channelPictureMapper.selectById(channelCode);
-                    if (id == null){
+                    if (channelCode == null){
                         channelPictureMapper.insert(picture);
                     }else {
                         QueryWrapper<ChannelPicture> queryWrapper = new QueryWrapper<>();
@@ -485,8 +479,7 @@ public class MonitorService {
                     picture.setPicUrl(picUrl);
                     /*picture.setInsertTime(new Date());
                     channelPictureMapper.insert(picture);*/
-                    ChannelPicture id = channelPictureMapper.selectById(channelCode);
-                    if (id == null){
+                    if (channelCode == null){
                         channelPictureMapper.insert(picture);
                     }else {
                         QueryWrapper<ChannelPicture> queryWrapper = new QueryWrapper<>();
@@ -528,8 +521,7 @@ public class MonitorService {
                     picture.setPicUrl(picUrl);
                     /*picture.setInsertTime(new Date());
                     channelPictureMapper.insert(picture);*/
-                    ChannelPicture id = channelPictureMapper.selectById(channelCode);
-                    if (id == null){
+                    if (channelCode == null){
                         channelPictureMapper.insert(picture);
                     }else {
                         QueryWrapper<ChannelPicture> queryWrapper = new QueryWrapper<>();
@@ -570,8 +562,7 @@ public class MonitorService {
                     picture.setPicUrl(picUrl);
                     /*picture.setInsertTime(new Date());
                     channelPictureMapper.insert(picture);*/
-                    ChannelPicture id = channelPictureMapper.selectById(channelCode);
-                    if (id == null){
+                    if (channelCode == null){
                         channelPictureMapper.insert(picture);
                     }else {
                         QueryWrapper<ChannelPicture> queryWrapper = new QueryWrapper<>();
@@ -613,8 +604,7 @@ public class MonitorService {
                     picture.setPicUrl(picUrl);
                     /*picture.setInsertTime(new Date());
                     channelPictureMapper.insert(picture);*/
-                    ChannelPicture id = channelPictureMapper.selectById(channelCode);
-                    if (id == null){
+                    if (channelCode == null){
                         channelPictureMapper.insert(picture);
                     }else {
                         QueryWrapper<ChannelPicture> queryWrapper = new QueryWrapper<>();