request获取全域名

from flask import Flask, request

app = Flask(__name__)

@app.route('/')
def index():
    full_url = request.url
    return f'Full URL: {full_url}'

if __name__ == '__main__':
    app.run()

const express = require('express');
const app = express();

app.get('/', (req, res) => {
    const fullUrl = req.protocol + '://' + req.get('host') + req.originalUrl;
    res.send(`Full URL: ${fullUrl}`);
});

app.listen(3000, () => {
    console.log('Server is running on port 3000');
});

import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RestController;
import javax.servlet.http.HttpServletRequest;

@RestController
public class MyController {

    @GetMapping("/")
    public String index(HttpServletRequest request) {
        String fullUrl = request.getRequestURL().toString();
        return "Full URL: " + fullUrl;
    }
}