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.$notify({
title: "失败",
message: "上传资源只能是 doc/docx/xls/xlsx/ppt/pptx/pdf/mp4 格式!",
type: "error",
duration: 3000
});
return false
}
// ppt(10MB)，word(10MB)，excel(5MB)
if (ext == "doc" || ext == "docx" || ext == "ppt" || ext == "pptx") {
debugger
if (parseInt(file.size) > parseInt('10485760"失败",
message: "上传word、ppt文件上限为10MB!",
type: "error",
duration: 3000
});
return false
}
}
if (ext == 'mp4') { // 获取视频时长
var url = URL.createObjectURL(file);
var audioElement = new Audio(url);
var duration;
audioElement.addEventListener("loadedmetadata", function (_event) {
duration = audioElement.duration; //时长为秒，小数，182.36
this.$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
}
总结
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！