vue中Excel导出的方法封装：

import { Loading } from 'element-ui';
import axios from '@/utils/request';
export default {
download(url,data,fileName) {
        let options = {
            lock: true,
            text: 'Loading...',
            spinner: 'el-icon-loading',
            background: 'rgba(0, 0, 0, 0.7)'
        }
        let loadingInstance = Loading.service(options);
        axios.post(url,data,'blob').then(res => {
            loadingInstance.close();
            if (!res) {return}
            let link = document.createElement('a');
            let blob = new Blob([res], {type: 'application/vnd.ms-excel'})
            link.style.display = 'none';
            link.href = URL.createObjectURL(blob)
            link.setAttribute('download',fileName);
            document.body.appendChild(link);
            link.click();
            document.body.removeChild(link)
        }).catch(err=>{
            loadingInstance.close();
        })
    },
}


//下载模板的实战应用：
import downloadUtil from '@/utils/download.js';
   downLoad() {
      //后端接口
      let url = '/oms/oms/afs/api/ps_afs_cc_week/upload_template';
      let fileName = 'Warranty Reserved Stock Template.xls';
      let data = {}
      downloadUtil.download(url, data, fileName)
    },



//实战中使用导出方法导出报表数据：
import downloadUtil from '@/utils/download.js';
    exportMethod() {
      let myDate = new Date()
      let month = myDate.getMonth() + 1
      //拼接年月日时分秒
      let date =myDate.getFullYear() +  '' +   month +   '' +   myDate.getDate() +    '' +  myDate.getHours() + '' +  myDate.getMinutes() + '' + myDate.getSeconds()
      let url = '/oms/oms/partSalesOrder/downloadDataFile'
      let obj = JSON.parse(JSON.stringify(this.queryForm));
      obj.orderType = this.tagLable;
      obj.createdDate.length > 0 ? obj.createdDateStart = obj.createdDate[0] : obj.createdDateStart = 0;
      obj.createdDate.length > 0 ? obj.createdDateEnd = obj.createdDate[1] : obj.createdDateEnd = 0;
      let fileName = 'Search_Order_list' + date + '.xlsx'
      downloadUtil.download(url,obj,fileName)
    },