提交：

-- 固件版本管理 功能 文件上传 文件类型判定 application/octet-stream (.bin)文件

src/views/iot/ota/index.vue

@@ -247,6 +247,7 @@
             <el-upload
               ref="upload"
               :show-file-list="false"
+              :before-upload="beforeAvatarUpload"
               :http-request="uploud"
               action
               drag
@@ -443,6 +444,14 @@ export default {
     this.getList();
   },
   methods: {
+    beforeAvatarUpload(file) {
+      console.log('oat-upload-file--', file, file.type === 'application/octet-stream');
+      const isBin = file.type === 'application/octet-stream';
+      if (!isBin) {
+        this.$message.error('上传文件类型错误，只能上传.bin文件!');
+      }
+      return isBin;
+    },
     copyOnClick(val) {
       let self = this;
       this.$copyText(val).then(
@@ -490,18 +499,6 @@ export default {
           console.log(e);
         });
     },
-    beforeAvatarUpload(file) {
-      const isJPG = this.fileType.indexOf(file.type) >= 0;
-      const isLt2M = file.size < this.fileSize;
-
-      if (!isJPG) {
-        this.$message.error("上传头像图片只能是 JPG 格式!");
-      }
-      if (!isLt2M) {
-        this.$message.error("上传头像图片大小不能超过 2MB!");
-      }
-      return isLt2M;
-    },
     // 打开厂商选择窗口 ——表格
     openModelTableSelectDialog() {
       this.selectResult = {};