How does vue do excel/table export?

Step 1: Create a new .js file in utils, the contents of which are as follows:

If you don't need npm i, or yarn, cnpm...

import { saveAs } from 'file-saver'
export const downloadFile = (fileStream, saveFileName) => {
    return new Promise((resolve, reject) => {
     const blob = new Blob([fileStream])
     if (navigator.msSaveBlob) {     // 兼容IE
     navigator.msSaveBlob(blob, saveFileName)
    } else {
     const url = window.URL.createObjectURL(blob)
    saveAs(url, saveFileName)
     }
    resolve()
     })
}

 My file is called this

Add something special to the interface:

//导出会员表格
export function exportExcel(data) {
  return request({
    url: 'xxxxx,
    method: 'post',
    responseType: 'blob',    //这里是重点
  	data:data
  })
}

Then import this method in the file that needs to be exported:

import {downloadFile} from '../../utils/exportExcel'

After clicking the button binding event --

 //导出会员
        exportExcel(){
            console.log(132);
            exportExcel().then(res =>{
                console.log(res);
                downloadFile(res,'会员收入.xls')  
            }).catch(err =>{
                console.log(err);
            })
        },

downloadFile() 

Two parameters are received here, the first parameter is res (the content returned by the interface), and the second parameter is the file name

Note: The suffix of the file name must be .xls