快速搭建一个node服务，可以用于检查自己的单页应用是否有问题

app.js

var exppress = require("express");
const fs = require("fs");
var app = exppress();
app.use(exppress.static("dist"));
const port = 3000;
app.listen(port, () => {
  console.log(`服务已经启动 at http://localhost:${port}`);
});
//服务端端路由
app.use(function (req, res, next) {
  //每次返回index.html
  fs.readFile(__dirname + "/dist/index.html", function (err, data) {
    if (err) {
      console.log(err);
      res.send("后台错误");
    } else {
      res.writeHead(200, {
        "Content-type": "text/html",
        Connection: "keep-alive",
      });
      res.end(data);
    }
  });
});

每次替换dist文件即可，启动命令 node app.js