openssl genrsa 1024 > /pathway/private.pem

 openssl req -new -key /pathway/private.pem -out csr.pem 

var express = require('express'); // 项目服务端使用express框架 
var app = express(); 
var path = require('path'); 
var fs = require('fs'); 
 
//使用nodejs自带的http、https模块 
var http = require('http'); 
var https = require('https'); 
 
//根据项目的路径导入生成的证书文件 
var privateKey = fs.readFileSync(path.join(__dirname, './certificate/private.pem'), 'utf8'); 
var certificate = fs.readFileSync(path.join(__dirname, './certificate/file.crt'), 'utf8'); 
var credentials = {key: privateKey, cert: certificate}; 
 
var httpServer = http.createServer(app); 
var httpsServer = https.createServer(credentials, app); 
 
//可以分别设置http、https的访问端口号 
var PORT = 8000; 
var SSLPORT = 8001; 
 
//创建http服务器 
httpServer.listen(PORT, function() { 
  console.log('HTTP Server is running on: http://localhost:%s', PORT); 
}); 
 
//创建https服务器 
httpsServer.listen(SSLPORT, function() { 
  console.log('HTTPS Server is running on: https://localhost:%s', SSLPORT); 
}); 
 
//可以根据请求判断是http还是https 
app.get('/', function (req, res) { 
  if(req.protocol === 'https') { 
    res.status(200).send('This is https visit!'); 
  } 
  else { 
    res.status(200).send('This is http visit!'); 
  } 
});