如何使用 NodeJS 提供多个 html 文件

Question

I created a mongoDB form with nodeJS and I can serve the signUp page, but when I click on any other links to go to other pages, it throws "Cannot GET /index.html" for example. I am unsure of how to serve multiple files using nodejs.

var express = require("express");
var app = express();
var port = 3000;
var bodyParser = require('body-parser');
app.use(bodyParser.json());
app.use(bodyParser.urlencoded({ extended: true }));

var mongoose = require("mongoose");
mongoose.Promise = global.Promise;
mongoose.connect("mongodb://localhost:27017/ClubArchive_Users");
var nameSchema = new mongoose.Schema({
     fname: String,
     lname: String,
     email: String, 
     uname: String,
     pwd :String
});
var User = mongoose.model("User", nameSchema);

app.get("/", (req, res) => {
    res.sendFile(__dirname + "/SignUp.html");
});

app.post("/addname", (req, res) => {
    var myData = new User(req.body);
    myData.save()
        .then(item => {
            res.sendFile(__dirname + "/index.html");
        })
        .catch(err => {
            res.status(400).send("Unable to save to database");
        });
});

app.listen(port, () => {
    console.log("Server listening on port " + port);
});

Answer 1

node.js by itself serves no content at all. So, any URL that you want your server to respond to must have a corresponding route in Express. You can code each of them individually with

app.get(someURLPath, someHandler);

Or, you can serve a group of static pages located in a directory hierarchy using express.static() middleware.

To help you more specifically, we'd need to:

1. See the overall list of pages you want to serve
2. Know which ones are static HTML pages vs. dynamic
3. Know where they are located in your local file system
4. See what URLs you want to be used for each page

You can see a general tutorial for express.static here and here .

when I click on any other links to go to other pages, it throws "Cannot GET /index.html" for example. I am unsure of how to serve multiple files using nodejs.

You will need to teach your node.js server how to respond to those other links. Either create a custom route for each one or, for static pages, use express.static() so that it can serve a bunch of static pages with one line of middleware.