引用uniapp插件市场的插件,使用的是视频上传 （阿里云 oss上传）
我只使用了H5和App端，需要后端配置跨域
yk-authpup详情请参考 》》【用户告知权限申请的目的】
【插件市场】阿里云存储OSS前端直接上传(全端通用) - 前端JASON

<template>
<view><view class="bg pd-20-30"><view class=""><view class="mg-tb-25 fbc">上传视频<view v-if="editVideo" @click="delVideo" class="c-d41 font-26">删除</view></view><view class="bg-f57 mg-t-20 h-600"><progress class="file-picker__progress-item" :percent="vProgress" stroke-width="4" /><view v-if="editVideo" class="relative wh-100p"><video :autoplay="false" class="wh-100p" :src="editVideo" :poster="editVideo+'?x-oss-process=video/snapshot,t_100,f_jpg'"></video></view><view v-if="!editVideo" @click="judgment('video')" class="t_c wh-100p fcc"><view class=""><uni-icons type="videocam" size="45" color="#d8d8d8"></uni-icons><view class="font-25 c-cc spa_1" style="margin-top: -15rpx;">上传效果视频</view></view></view></view></view></view><!-- 用户告知权限申请的目的，在App端上传视频图片等需要有权限提示（华为审核上架必备） --><yk-authpup ref="authpup" :permissionID="permissionID" @changeAuth="changeAuth"></yk-authpup>
</view>
</template><script>
import { ossUpload } from '@/js_sdk/alioss-upload/oss.js'
export default {data() {return {editVideo: '',vProgress: 0,// 用户告知权限申请的目的changeType: '',soIndex: 0,permissionID:''};},methods: {judgment(_type) { // 判断H5还是Appthis.changeType = _type;// #ifdef APP-PLUSlet that=this;that.permissionID = 'WRITE_EXTERNAL_STORAGE';if (plus.os.name == 'Android') setTimeout(()=>{ that.$refs['authpup'].open(); },200)if (plus.os.name == "iOS") that.changeAuth();// #endif// #ifdef H5this.changeAuth();// #endif},changeAuth() { //用户授权权限后的回调if(this.changeType =='video') this.chooseVideo();},chooseVideo() { // 上传视频let that=this;uni.chooseVideo({count: 1,sourceType: ['album'],success: async function (rey) {// console.log(rey)let _name;// #ifdef APP-PLUS_name = rey.tempFilePath;// #endif// #ifdef H5_name = rey.name;// #endifconst {success,data} = await ossUpload(rey.tempFilePath, _name, 'uploads/video/',function(_ret){that.vProgress=_ret.progress});if(success){that.editVideo=data;} else{that.toast(data)}returnuni.showLoading({ title: '上传中',mask: true });uni.uploadFile({url: that.uploadUrl,filePath: rey.tempFilePath,name: 'file',success: (uploadFileRes) => {let res = JSON.parse(uploadFileRes.data)uni.hideLoading();if(res.code==1){that.editVideo=res.data;} else{that.toast(res.msg)}},});},fail: (err) => { console.log(err)if(plus.os.name == "iOS"&&err["errMsg"]=="chooseVideo:fail No filming permission"){setTimeout(()=>{ that.$refs['authpup'].open(); },200)}}});},delVideo() {this.editVideo=''; this.vProgress=0;},}
};
</script><style>
image{ pointer-events: all; }
.video_cover{position: absolute; top: 0; left: 0; bottom: 0; z-index: 1;/* background-color: rgba(1,1,1,.5); */
}
</style>

js_sdk/alioss-upload文件下的js

oss.js

import { Base64 } from './base64.js'
import { util } from './crypto.js'
import { HMAC } from './hmac.js'
import { SHA1 } from './sha1.js'// ======下面这3个信息必填======
const url = '_您的URL_';
const OSSAccessKeyId = '_您的OSSAccessKeyId_';
const OssAccesskeySercet= '_您的OssAccesskeySercet_';
// console.log(uni.getStorageSync('aliossUp'))const policyText = {"expiration": "2034-01-01T12:00:00.000Z", // 设置Policy的有效期，格式为UTC时间。如果Policy失效，将无法上传文件。"conditions": [["content-length-range", 0, 1048576000] // 限制上传文件的大小，单位为字节，此处限制文件大小为1 GB。如果上传的文件大小超过此限制，文件将无法上传到OSS。如果未设置该限制，则默认文件大小最大为5 GB。]
}const policy = Base64.encode(JSON.stringify(policyText))
const bytes = HMAC(SHA1, policy, OssAccesskeySercet, { asBytes: true })
const signature = util.bytesToBase64(bytes)// 生成文件名随机字符串
function random_string(len) {const strLeng = len || 32;const chars = 'ABCDEFGHJKMNPQRSTWXYZabcdefhijkmnprstwxyz2345678';   const maxPos = chars.length;let pwd = '';for (let i = 0; i < strLeng; i++) {pwd += chars.charAt(Math.floor(Math.random() * maxPos));}return pwd;
}// 获取文件后缀
function get_suffix(filename) {const pos = filename.lastIndexOf('.')let suffix = ''if (pos != -1) {suffix = filename.substring(pos)}return suffix;
}// dir格式：'img/'
export const ossUpload = (filePath, name, dir,onUploadProgress) => {const key = dir + random_string(10) + get_suffix(name)return new Promise((resolve, reject) => {const uploadTask = uni.uploadFile({url,filePath,name: 'file',formData: {name,key,policy,OSSAccessKeyId,success_action_status: '200',signature},success: () => {resolve({success: true, data: url+key})},fail: () => {reject({success: false, data: '上传失败'})}})// ======做了一些修改加了一个上传进度======uploadTask.onProgressUpdate((res) => {onUploadProgress(res)// console.log('上传进度' + res.progress);// console.log('已经上传的数据长度' + res.totalBytesSent);// console.log('预期需要上传的数据总长度' + res.totalBytesExpectedToSend);});})
}