1、添加了一个人脸登记模块；

2、添加了一个人脸识别模块

src/components/TinyFaceDetector.vue

@@ -83,7 +83,9 @@ export default {
         .catch(this.error);
     },
     error(err) {
-      alert(`访问用户媒体设备失败!\n${err.name},${err.message}!`);
+      alert(
+        `打开摄像头失败！\n如设备不支持，可使用手机APP\n${err.name},${err.message}!`
+      );
     },
     success(stream) {
       // Older browsers may not have srcObject

src/views/FaceDetect.vue

@@ -199,7 +199,7 @@ export default {
     left: 50%;
     transform: translate(-50%, -50%);
     .detector-box {
-      width: 400px;
+      width: 900px;
       display: inline-block;
     }
     h4 {

src/views/FaceRegister.vue

@@ -198,7 +198,7 @@ export default {
     left: 50%;
     transform: translate(-50%, -50%);
     .detector-box {
-      width: 400px;
+      width: 900px;
       display: inline-block;
     }
     h4 {

src/views/PreviewPDF.vue

@@ -170,6 +170,7 @@ export default {
       pageIndex: 1, // pdf页码
       pageLength: null, // 总页码
       startTime: null,
+      is404: false,
       scale: 2, // 缩放比例
       borderSize: 9, // viewerContainer容器border大小
       shouldRenderHtml: false, // pdf预览时是否需要渲染成html
@@ -210,15 +211,27 @@ export default {
   methods: {
     async preview() {
       if (this.pdf === null) {
-        let pdf = await pdfJs.getDocument(
-          this.pdfUrl === ""
-            ? "http://b2b-flv.qida.com/product/20191105/23386fd7-5551-4fa2-81cc-025945a75eeb/out.pdf"
-            : this.pdfUrl
-        );
-        console.log("获取PDF", pdf);
-        this.pdf = pdf;
+        let that = this;
+        try {
+          let pdf = await pdfJs.getDocument(
+            this.pdfUrl === ""
+              ? "https://qida-videos.oss-cn-shenzhen.aliyuncs.com/404.pdf"
+              : this.pdfUrl
+          );
+          console.log("获取PDF", pdf);
+          this.pdf = pdf;
+        } catch (error) {
+          console.log(error);
+          that.pdfUrl = "";
+          that.is404 = true;
+          that.preview();
+          return;
+        }
       }
       this.pageLength = this.pdf._pdfInfo.numPages;
+      if (!this.is404) {
+        this.isOnePage();
+      }
       let page = await this.pdf.getPage(this.pageIndex);
       const devicePixelRatio = window.devicePixelRatio;
       const scale = this.pageSize * this.scale * devicePixelRatio;
@@ -272,6 +285,15 @@ export default {
       });
       return { bufferCanvas, textLayerDiv: textLayerDiv[0], bodyHeight };
     },
+    isOnePage() {
+      if (this.pageLength === 1) {
+        this.LMSSetLocationPoint();
+        this.LMSSetLessProgress();
+        this.LMSSetSessionTime();
+        this.LMSSetLessonStatus("completed");
+        this.LMSCommit();
+      }
+    },
     async renderCanvas(bufferCanvas, viewport, page) {
       let bufferContext = bufferCanvas.getContext("2d");
       let renderContext = {