npm install ali-oss

let OSS = require('ali-oss');
let client= new OSS.Wrapper({
 accessKeyId: 'your access key',
 accessKeySecret: 'your access secret',
 bucket: 'your bucket name',
 region: 'oss-cn-hangzhou'
});

let oss = require('ali-oss');
var client = oss({
 accessKeyId: 'your access key',
 accessKeySecret: 'your access secret',
 bucket: 'your bucket name',
 region: 'oss-cn-hangzhou'
});

let result = await client.multipartUpload('object-key', 'local-file', {
 progress: async function (p) {
 console.log('Progress: ' + p);
 }
 });

<template>
 <div>
 <el-upload
 :auto-upload="false"
 :action="uploadUrl"
 ref="upload"
 :before-upload="fnBeforeUpload"
 :on-success="fnUploadSuccess"
 :on-exceed="fnUploadExceed"
 :data="data_extra"
 :headers="uploadHeaders"
 :http-request="fnUploadRequest"
 drag
 :limit="files"
 :disabled="disabled"
 multiple>
 <i class="el-icon-upload"></i>
 <div class="el-upload__text">将文件拖到此处，或<em>点击上传</em></div>
 <div slot="tip" class="el-upload__tip">上传文件大小不能超过 1G</div>
 </el-upload>
 </div>
</template>
<script>
import UploadFileApi from '@/api/system/UploadFileApi'
import * as util from 'utils/common'
import OSS from 'ali-oss'
export default {
 name: 'fileUpload',
 props: {
 data_extra: {
 type: Object,
 required: true
 },
 accept: {
 type: Array,
 required: true
 }
 },
 data () {
 return {
 uploadUrl: '',
 uploadFileLength: 0,
 uploadFileSuccess: 0,
 uploadFileNames: [],
 uploadFileName: [],
 fileList: [],
 files: 10,
 uploadHeaders: {
 authorization: ''
 },
 disabled: false
 }
 },
 methods: {
 /**
 * @description [fnUploadRequest 覆盖默认的上传行为，实现自定义上传]
 * @author shanshuizinong
 * @param {object} option [上传选项]
 * @return {null} [没有返回]
 */
 async fnUploadRequest (option) {
 try {
 let vm = this
 vm.disabled = true
 // 获取OSS配置信息
 let uploadFileApi = new UploadFileApi()
 let ret = await uploadFileApi.fileOssParams()
 if (!(ret.data && ret.data.code === '0' && ret.data.data)) {
  throw new Error('获取OSS参数失败')
 }
 let ossData = JSON.parse(ret.data.data)
 let relativePath = ossData.relativePath
 let client = new OSS.Wrapper({
  policy: ossData.policy,
  accessKeyId: ossData.accessid,
  accessKeySecret: ossData.accesssecret,
  bucket: ossData.bucket,
  signature: ossData.signature
 })
 let file = option.file
 const point = file.name.lastIndexOf('.')
 let suffix = file.name.substr(point)
 let fileName = file.name.substr(0, point)
 let date = vm.$moment().format('YYYYMMDDHHmm')
 let fileNames = `${fileName}_${date}${suffix}`
 // 分片上传文件
 ret = await client.multipartUpload(relativePath + fileNames, file, {
  progress: async function (p) {
  let e = {}
  e.percent = p * 100
  option.onProgress(e)
  }
 })
 console.log(ret)
 if (ret.res.statusCode === 200) {
  // option.onSuccess(ret)
  return ret
 } else {
  vm.disabled = false
  option.onError('上传失败')
 }
 } catch (error) {
 console.error(error)
 this.disabled = false
 option.onError('上传失败')
 this.$error(error.message)
 }
 },
 /**
 * @description [fnUploadSuccess 文件上传成功的函数]
 * @author shanshuizinong
 * @return {null} [没有返回]
 */
 async fnUploadSuccess () {
 // TODO
 }
 }
}
</script>