nodejs使用excel-export模块获取mysql数据库中的数据并导出生成excel格式

使用nodejs将mysql数据库中的数据导出成excel格式

const express = require('express');
const nodeExcel = require('excel-export');
const app = express();
const dbUtils = require('./dbUtils');
const config = {
     
  host: "127.0.0.1",
    port: "3306",
    user: "root",
    password: "root",
    database: "million",
}
const pool = dbUtils.create(config);
const dbClient = new dbUtils.dbClient(pool);

app.use('/', function(req, res){
     
	//开启 promise 异步读取文件内容
    let promise = new Promise((resolve, reject) => {
     
        dbClient.listCols('test',['id', 'title', 'applicant_ch'], {
     'title': '0'}, function(err, data){
     
        	if(err)reject(err);
		    resolve(data);
	    })
    })

    promise.then(data => {
     
        let conf = {
     };
        if (data != '') {
     
            conf.name = 'mysheet';// sheet 名称
            //决定列名和类型
            conf.cols = [
                {
     
                    caption: 'id',
                    type: 'number'
                }, {
     
                    caption: 'title',
                    type: 'string'
                }, {
     
                    caption: 'applicant_ch',
                    type: 'string'
                }
            ];
            let tmpTotalArr = [];
            for (let k = 0; k < data.length; k++) {
     
                let el = data[k];
                let tmpArr = new Array();
                for(let i in el){
     
                	tmpArr.push(el[i]);
                }
                tmpTotalArr.push(tmpArr);
            }
            conf.rows = tmpTotalArr;//填充数据
        }
        let result = nodeExcel.execute(conf); // nodeExcel 生成的数据
        res.setHeader('Content-Type', 'application/vnd.openxmlformats');
        res.setHeader("Content-Disposition", "attachment; filename=" + "Report.xlsx");
        res.end(result, 'binary'); //返回给前台
    }).catch(err => {
     
        console.log(err);
    })
})

app.listen('3000', function(){
     
	console.log('server is running at http://127.0.0.1:3000');
})

完整数据如下：
https://download.csdn.net/download/mdsdnw/12704896