diff --git a/web/src/main/java/com/zhehekeji/web/service/CameraService.java b/web/src/main/java/com/zhehekeji/web/service/CameraService.java
index dfba0e5..941fa1b 100644
--- a/web/src/main/java/com/zhehekeji/web/service/CameraService.java
+++ b/web/src/main/java/com/zhehekeji/web/service/CameraService.java
@@ -1,6 +1,7 @@
 package com.zhehekeji.web.service;
 
 import com.alibaba.excel.EasyExcel;
+import com.baomidou.mybatisplus.core.conditions.query.QueryWrapper;
 import com.github.pagehelper.PageHelper;
 import com.github.pagehelper.PageInfo;
 import com.zhehekeji.core.util.Assert;
@@ -171,33 +172,23 @@ public class CameraService {
      * @return
      */
     public List<Camera> allCameras1(){
-
-        List<Camera> cameras = cameraMapper.selectByMap(new HashMap<>());
-        return cameras.stream().filter(camera -> {
-            int index = Integer.parseInt(camera.getName().substring(2, 4));
-            boolean b = index >= 1 && index <= 5;
-            return b;
-        }).collect(Collectors.toList());
+        Integer num = configProperties.getVideoStyleConfig().getVideoStyleRow() *configProperties.getVideoStyleConfig().getVideoStyleColumn();
+        Integer count = cameraMapper.selectCount(new QueryWrapper<Camera>());
+        List<Camera> cameras = cameraMapper.selectList(new QueryWrapper<Camera>().last("limit "+num));
+        return cameras;
     }
 
     public List<Camera> allCameras2(){
-
-        List<Camera> cameras = cameraMapper.selectByMap(new HashMap<>());
-        return cameras.stream().filter(camera -> {
-            int index = Integer.parseInt(camera.getName().substring(2, 4));
-            boolean b = index >= 6 && index <= 10;
-            return b;
-        }).collect(Collectors.toList());
+        Integer num = configProperties.getVideoStyleConfig().getVideoStyleRow() *configProperties.getVideoStyleConfig().getVideoStyleColumn();
+        List<Camera> cameras = cameraMapper.selectList(new QueryWrapper<Camera>().last("limit "+num +","+num));
+        return cameras;
     }
 
     public List<Camera> allCameras3(){
+        Integer num = configProperties.getVideoStyleConfig().getVideoStyleRow() *configProperties.getVideoStyleConfig().getVideoStyleColumn();
+        List<Camera> cameras = cameraMapper.selectList(new QueryWrapper<Camera>().last("limit "+num*2+","+num));
 
-        List<Camera> cameras = cameraMapper.selectByMap(new HashMap<>());
-        return cameras.stream().filter(camera -> {
-            int index = Integer.parseInt(camera.getName().substring(2, 4));
-            boolean b = index >= 11 && index <= 15;
-            return b;
-        }).collect(Collectors.toList());
+        return cameras;
     }
 
     /**