vue 获取视频时长的实例代码

直接通过element-ui自带的上传组件结合js即可，代码如下：

HTML：     

<el-upload class=\"upload-demo\" :action=\"actionUrl\" :show-file-list=\"false\" :on-success=\"handleAvatarSuccess\"
     :before-upload=\"beforeAvatarUpload\">
     <button class=\"ce-button not-hover primary\">
      <i class=\"ce-icon_upload\"></i>
      <span>重新上传</span>
     </button>
    </el-upload>

js：

 beforeAvatarUpload(file) {
    var fileName = file.name || \'\'
    var ext = fileName.split(\'.\')[fileName.split(\'.\').length - 1]
    if (ext !== \"doc\" && ext !== \"docx\" && ext !== \"xls\" && ext !== \"xlsx\"
     && ext !== \"ppt\" && ext !== \"pptx\" && ext !== \"pdf\" && ext !== \"mp4\") {
     this.$notify({
      title: \"失败\",
      message: \"上传资源只能是 doc/docx/xls/xlsx/ppt/pptx/pdf/mp4 格式!\",
      type: \"error\",
      duration: 3000
     });
     return false
    }
    // ppt(10MB)，word(10MB)，excel(5MB)
    if (ext == \"doc\" || ext == \"docx\" || ext == \"ppt\" || ext == \"pptx\") {
     debugger
     if (parseInt(file.size) > parseInt(\'10485760‬\')) {
      this.$notify({
       title: \"失败\",
       message: \"上传word、ppt文件上限为10MB!\",
       type: \"error\",
       duration: 3000
      });
      return false
     }
    }
    if (ext == \'mp4\') { // 获取视频时长
     var url = URL.createObjectURL(file);
     var audioElement = new Audio(url);
     var duration;
     audioElement.addEventListener(\"loadedmetadata\", function (_event) {
      duration = audioElement.duration; //时长为秒，小数，182.36
      this.$parent.$data.wDuration = parseInt(duration)
      console.log(duration);
     });
    }
    this.$parent.$data.wFileName = file.name
    this.$parent.$data.wSize = parseFloat(file.size / 1024).toFixed(2) //获取文件大小
   }

以上所述是小编给大家介绍的vue 获取视频时长的实例代码，希望对大家有所帮助，如果大家有任何疑问欢迎欢迎给我留言，小编会及时回复大家的！