diff --git a/.env.development b/.env.development
index b3a7114..422cd04 100644
--- a/.env.development
+++ b/.env.development
@@ -17,8 +17,8 @@ VITE_APP_RES_FILE_PATH = 'https://file.ysaix.com:7868/src/assets/textbook/booktx
 VITE_APP_BUILD_BASE_PATH = 'https://file.ysaix.com:7868/'
 
 # websocket 地址
-# VITE_APP_WS_URL = 'wss://file.ysaix.com:7868'
-VITE_APP_WS_URL = 'ws://192.168.2.16:7865'
+VITE_APP_WS_URL = 'wss://file.ysaix.com:7868'
+# VITE_APP_WS_URL = 'ws://192.168.2.16:7865'
 
 # 是否显示开发工具
 VITE_SHOW_DEV_TOOLS = 'true'
diff --git a/src/renderer/src/AixPPTist/src/App.vue b/src/renderer/src/AixPPTist/src/App.vue
index 77b800d..f90545d 100644
--- a/src/renderer/src/AixPPTist/src/App.vue
+++ b/src/renderer/src/AixPPTist/src/App.vue
@@ -27,8 +27,8 @@ import msgUtils from '@/plugins/modal' // 消息工具
 import * as API_entpcoursefile from '@/api/education/entpcoursefile' // 相关api
 import { PPTApi } from './api'
 import { sessionStore } from '@/utils/store' // electron-store 状态管理
-import './api/watcher' // 监听
 import './api/classcourse' // 课程相关
+import './api/watcher' // 监听
 
 const loading = ref(true)
 const _isPC = isPC()
diff --git a/src/renderer/src/AixPPTist/src/api/classcourse.ts b/src/renderer/src/AixPPTist/src/api/classcourse.ts
index ca162e1..efa8df9 100644
--- a/src/renderer/src/AixPPTist/src/api/classcourse.ts
+++ b/src/renderer/src/AixPPTist/src/api/classcourse.ts
@@ -2,20 +2,20 @@
  * @author zdg
  * @description 上课相关内容
  */
-import type { Classcourse } from './types'
+// import type { Classcourse } from './types'
 import { sessionStore } from '@/utils/store' // electron-store 状态管理
 import * as useStore from '../store' // pptist-状态管理
-import { ChatWs } from '@/plugins/socket' // 聊天socket
+import ChatWs from '@/plugins/socket' // 聊天socket
 const screenStore = useStore.useScreenStore() // 全屏-状态管理
 const classcourseStore = useStore.useClasscourseStore() // 课堂信息-状态管理
-const classcourse: Classcourse = sessionStore.get('curr.classcourse') // 课堂信息
+const classcourse = sessionStore.get('curr.classcourse') // 课堂信息
 
 // 如果课堂信息有值，则连接socket
 if (!!classcourse) {
   // 连接socket
-  const ws = new ChatWs()
-  console.log('ws- ',ws)
-  // ChatWs.connect(classcourse.id)
+  if (!ChatWs.ws) ChatWs.init()
+  ChatWs.id = classcourse.timgroupid // 群组id
+  console.log('ws- ',ws, classcourse)
   classcourseStore.setClasscourse(classcourse)
 }
 // 打开全屏
diff --git a/src/renderer/src/AixPPTist/src/api/index.ts b/src/renderer/src/AixPPTist/src/api/index.ts
index b0c8239..57bc29e 100644
--- a/src/renderer/src/AixPPTist/src/api/index.ts
+++ b/src/renderer/src/AixPPTist/src/api/index.ts
@@ -3,7 +3,7 @@
  * @author zdg
  * @date 2024-11-26
  */
-import { toRaw } from 'vue'
+import { toRaw, nextTick } from 'vue'
 import type { Result } from './types' // 接口类型
 import msgUtils from '@/plugins/modal' // 消息工具
 import * as API_entpcoursefile from '@/api/education/entpcoursefile' // 相关api
@@ -12,6 +12,8 @@ import * as useStore from '../store' // pptist-状态管理
 import { sessionStore } from '@/utils/store' // electron-store 状态管理
 import useUserStore from '@/store/modules/user' // 外部-用户信息
 
+import { toPng, toJpeg } from 'html-to-image' // 引入html-to-image库
+
 const slidesStore = useStore.useSlidesStore()
 const userStore = useUserStore()
 
@@ -142,6 +144,8 @@ export class PPTApi {
   // 更新幻灯片
   static updateSlide(data: object): Promise<Boolean> {
     return new Promise(async (resolve, reject) => {
+      const thumUrl = await this.getSlideThumUrl()
+      data.base64Code = thumUrl // 更新缩略图
       const res: Result = await API_entpcoursefile.updateEntpcoursefileNew(data)
       if (res.code === 200) {
         resolve(true)
@@ -184,6 +188,21 @@ export class PPTApi {
       else msgUtils.msgError(res.msg || '更新失败');return false
     })
   }
+  // thumbnail-slide thumbnail
+  static getSlideThumUrl(): Promise<Boolean> {
+    return nextTick().then(async() => {
+      const slideIndex = slidesStore.slideIndex
+      const elements = document.querySelectorAll('.thumbnail-slide')
+      if (elements.length && slideIndex >= 0) {
+        const element = elements[slideIndex]
+        return await toPng(element)
+      }
+      return null
+    })
+  //   return API_smarttalk.updateThumbnail().then(res => {
+  //     if (res.code === 200) return true
+  //     else msgUtils.msgError(res.msg || '更新失败');return false 
+  }
 }
 
 export default PPTApi
\ No newline at end of file
diff --git a/src/renderer/src/AixPPTist/src/api/types.ts b/src/renderer/src/AixPPTist/src/api/types.ts
index 8d4f81c..1f2de61 100644
--- a/src/renderer/src/AixPPTist/src/api/types.ts
+++ b/src/renderer/src/AixPPTist/src/api/types.ts
@@ -19,6 +19,7 @@ export interface Classcourse {
   entpcoursefileid?: number|string, // 课程文件id
   classid?: number|string, // 班级id
   entpcourseid?: number|string, // 章节中间表id
+  timgroupid?: number|string, // ws 群组id
   plandate?: string, // 计划时间
   opendate?: string, // 开课时间
 }
\ No newline at end of file
diff --git a/src/renderer/src/AixPPTist/src/api/watcher.ts b/src/renderer/src/AixPPTist/src/api/watcher.ts
index f1f21ba..f515b8e 100644
--- a/src/renderer/src/AixPPTist/src/api/watcher.ts
+++ b/src/renderer/src/AixPPTist/src/api/watcher.ts
@@ -6,6 +6,7 @@ import { watch } from 'vue'
 import { PPTApi } from './index'
 import * as store from '../store'
 import { sessionStore } from '@/utils/store' // electron-store 状态管理
+import ChatWs from '@/plugins/socket' // 聊天socket
 const slidesStore = store.useSlidesStore()
 const resource = sessionStore.get('curr.resource') // apt 资源
 const smarttalk = sessionStore.get('curr.smarttalk') // 备课资源
@@ -24,6 +25,19 @@ watch(() => slidesStore.title, (newVal, oldVal) => {
   updatePPT({title: newVal})
 })
 
+// 消息监听ws
+if (ChatWs.ws) {
+  ChatWs.watch((msg, e) => {
+    try {
+      handleMessage(JSON.parse(msg))
+    } catch (error) {
+      console.error('socket 解析异常 ', error, e)
+      handleMessage(msg)
+    }
+  })
+}
+
+// 更新ppt内容
 const updatePPT = async (data) => {
   if (!resource) return
   data.id = resource.id
@@ -36,4 +50,20 @@ const updatePPT = async (data) => {
     await PPTApi.updateSmarttalk(params) // 更新ppt内容
     sessionStore.set('curr.smarttalk.fileShowName', params.fileShowName)
   }
+}
+
+// ws消息处理
+const handleMessage = (msg) => {
+  if (typeof msg === 'object'){
+    const { head, content, ...other } = msg
+    console.log('ws-msg', head, content, other)
+    switch (head) {
+      case 'chat':
+        break
+      case 'update':
+        break
+      default:
+        break
+    }
+  }
 }
\ No newline at end of file
diff --git a/src/renderer/src/AixPPTist/src/store/classcourse.ts b/src/renderer/src/AixPPTist/src/store/classcourse.ts
index 7abd3fe..bd77fbd 100644
--- a/src/renderer/src/AixPPTist/src/store/classcourse.ts
+++ b/src/renderer/src/AixPPTist/src/store/classcourse.ts
@@ -2,7 +2,7 @@ import { defineStore } from 'pinia'
 import type { Classcourse } from '../api/types'
 
 export interface ClasscourseState {
-  classcourse: Classcourse
+  classcourse: Classcourse | any, // 课堂信息
 }
 
 export const useClasscourseStore = defineStore('classcourse', {
diff --git a/src/renderer/src/plugins/socket/index.js b/src/renderer/src/plugins/socket/index.js
index 968ac53..3edd643 100644
--- a/src/renderer/src/plugins/socket/index.js
+++ b/src/renderer/src/plugins/socket/index.js
@@ -8,6 +8,7 @@ import useUserStore from '@/store/modules/user' // 用户信息
 export class ChatWs {
   instance = null; // 实例
   id = null; // 群聊id || 单聊id-用户id(userId)
+  url = null; // ws地址
   closed = false; // 关闭状态
   onmessage = null; // 自定义处理
   errCount = 5; // 重连次数 (ms) 暂时不使用
@@ -19,12 +20,16 @@ export class ChatWs {
     beat: 'heart_beat', // 心跳
   }
   static base = 'wss://file.ysaix.com:7868'
-  constructor() {
+
+  // 构造函数 是否自动连接
+  constructor(bool = true) {
     if (!ChatWs.instance) {
-      const userStore = useUserStore() // 用户信息
-      const wsBase = import.meta.env.VITE_APP_WS_URL; // ws地址
-      const url = `${wsBase||ChatWs.base}/ws/websocket/${userStore.id}`;
-      this.init(url);
+      if (bool) { // 是否自动连接
+        const userStore = useUserStore() // 用户信息
+        const wsBase = import.meta.env.VITE_APP_WS_URL; // ws地址
+        this.url = `${wsBase||ChatWs.base}/ws/websocket/${userStore.id}`;
+        // this.init(url);
+      }
       ChatWs.instance = this;
     }
     return ChatWs.instance;
@@ -32,7 +37,7 @@ export class ChatWs {
 
   // 初始化
   init(url) {
-    this.url = url;
+    !!url && (this.url = url);
     this.ws = null;
     const _this = this
     this.heartCheck = {
@@ -78,10 +83,9 @@ export class ChatWs {
       // 拿到任何消息都说明当前连接是正常的
       const isBeat = e.data == 'pong'
       isBeat && self.heartCheck.reset().start();
-      const exts = ['sessionId', 'pong'] // 不处理的消息头
       const isEmpty = !e.data
-      const isExts = exts.some(item => e.data.includes(item))
-      if (isEmpty && isExts) return;
+      const isExts = e.data.includes('sessionId') || e.data == ('pong')
+      if (isEmpty || isExts) return;
       // 自定义处理
       self.onmessage && self.onmessage(e.data, e);
     };
@@ -137,7 +141,7 @@ export class ChatWs {
    * @param {*} id 群聊id || 单聊id-用户id(userId)
    */
   getMsgObj(msg, chatType = 'group', id) {
-    if (typeof msg === "object") msg = JSON.stringify(msg)
+    // if (typeof msg === "object") msg = JSON.stringify(msg)
     const res = {msg, chatType}
     // if (!id) throw new Error(`${type=='group'?'群ID':'用户ID'} is not null`)
     if (chatType == 'group') res.groupId = id || this.id || ''
@@ -160,5 +164,6 @@ export class ChatWs {
 }
 // 连接socket
 export const connect = () => new ChatWs()
+export const getInstance = () => new ChatWs(false)
 // 默认实例
 export default new ChatWs()
\ No newline at end of file
diff --git a/src/renderer/src/views/model/index.vue b/src/renderer/src/views/model/index.vue
index 3fe9bbc..b290275 100644
--- a/src/renderer/src/views/model/index.vue
+++ b/src/renderer/src/views/model/index.vue
@@ -199,8 +199,8 @@ const HTTP_SERVER_API = (type, params = {}) => {
     case 'addSmarttalk': { // 获取课程
       const def = {
         fileId: '', // 文件id - Entpcoursefile 对应id
-        fileFlag: 'aptist',
-        fileShowName: courseObj.coursetitle + '.aptist',
+        fileFlag: 'aippt',
+        fileShowName: courseObj.coursetitle + '.aippt',
         textbookId: courseObj.textbookId,
         levelFirstId: courseObj.levelFirstId,
         levelSecondId: courseObj.levelSecondId,
diff --git a/src/renderer/src/views/prepare/container/class-start.vue b/src/renderer/src/views/prepare/container/class-start.vue
index 77eb615..08b3b7f 100644
--- a/src/renderer/src/views/prepare/container/class-start.vue
+++ b/src/renderer/src/views/prepare/container/class-start.vue
@@ -267,10 +267,10 @@ const createClasscourse = async () => {
     setTimeout(() => {
       msgEl.close()
       msgEl = ElMessage.warning({message:'正在打开公屏，请稍后...',duration: 0})
-      setTimeout(() => {
+      setTimeout(async() => {
         msgEl.close()
-        const classcourse = {...params, id: teacherForm.form.classcourseid}
-        openPublicScreen(classcourse)
+        const res = await Http_Classcourse.getClasscourse(teacherForm.form.classcourseid)
+        openPublicScreen(res.data)
       }, 2000);
     }, 1000);
   }
@@ -303,9 +303,10 @@ const classTeachingStart = async () => {
     // 新版-pptList 打开公屏
     if (myClassActive.value.filetype == 'aptist') {
       const msgEl = ElMessage.warning({message:'正在打开公屏，请稍后...',duration: 0})
-      setTimeout(() => {
+      setTimeout(async () => {
         msgEl.close()
-        openPublicScreen({id})
+        const res = await Http_Classcourse.getClasscourse(teacherForm.form.classcourseid)
+        openPublicScreen(res.data)
       }, 2000);
     }else {
       const url = `/teaching/classteaching?classcourseid=${id}&actor=classTeachingOnPublicScreen`