Path settings for Node EXPRESSJS server

First, the path of the dynamic page:

App. METHOD (PATH, HANDLER)
Where:

* App is an instance of Express.
* method is an HTTP request method. Get,post, Put,delete,
* Path is a path on the server.
* HANDLER is the function executed if the route is matched.

Cases:
1) App.get ("/", F1);
2) App.post ("/", F2);

Map the get/post operation of the URL path directly to a function with response,

F1: Can be a file in this module, or a file in another module, or it can be a router module

App.use ("/", separate router module)

Second, the static file routing:

App.use (Express.static ('./public '));

* * You can also define a virtual path

App.use ('/virtualpathname ', express.static ('./public '));

The directory must be based on the root directory of the Web site, regardless of the current JS file directory

var path = require (' path ');

App.use (Express.static (Path.join (__dirname, ' public '));

Example: Access to images/kitten.jpg:
App.use (express.static (' public '));
Http://localhost/images/kitten.jpg

If the virtual path is used:
App.use ('/static ', express.static (' public '));
Http://localhost/static/images/kitten.jpg

：

Http://expressjs.com/en/starter/static-files.html

Http://expressjs.com/en/guide/routing.html

Http://expressjs.com/en/4x/api.html#router

Path settings for Node EXPRESSJS server