node服务器如何部署https证书

var http = require('http');

var https = require('https');

var path = require('path');

var fs = require('fs');

var options = {

    key: fs.readFileSync(''),

    cert: fs.readFileSync('')

};

var express = require('express');

var app = express();

app.set('trust proxy', 'loopback');

app.use(express.static(path.join(__dirname, 'public')));

require('./config/routes')(app);

app.use(function (req, res, next) {

    var err = new Error('Not Found');

    res.json({

        errormsg: err.status + ' Not Found '

    });

});

app.use(function (req, res, next) {

    res.status(err.status || 500);

    res.json({

        errormsg: err.status

    })

})

http.createServer(app).listen(80);

https.createServer(options, app).listen(443);

console.log('80')

console.log('443')