Nodejs creating a simple server

1. Create Package.jaon

1 {2   "name": "Application-name",3   "version": "0.0.1",4    "Dependencies": {5     "Express": "Latest"6  }7  }

2. Create Index.js

1 "use strict"; 2 Let router = require (' Express '). Router (); 3 4 function (req, res, next) {5     console.log (' index page '); 6     Res.redirect (' index.html '); 7 }); 8 9 module.exports = router;

3. Create App.js

1 /**2 * Created by Lenovo on 2017/8/1.3  */4"Use Strict";5 6Let Express = require (' Express ');7Let app =Express ();8Let Path = require ("path");9 TenLet routes = require ('./index ')); One /** A * Troubleshoot cross-domain issues -  */ -App.use (' * ',function(req, res, next) { theRes.header ("Access-control-allow-origin", "*"); -Res.header ("Access-control-allow-headers", "Content-type,content-length, Authorization, Accept,x-requested-with"); -Res.header ("Access-control-allow-methods", "Put,post,get,delete,options"); -Res.header ("x-powered-by", ' 3.2.1 '); +     if(req.method== "OPTIONS") res.send (200);/*get the options request back quickly*/ -     Elsenext (); + }); A  atApp.use ('/', routes); -  - //app.use ('/', Express.static (Path.resolve (". /") + '/static '); -  -Module.exports = app;

4. Create Www.js

1 "use strict"; 2 3 Let app = require ('./app '); 4 Let port = 8888; 5 6 App.listen (port, () = {7     console.log ("Listening port:" + port); 8 });

5. Installing node module

6. Node Www.js running Server

Nodejs creating a simple server