js++计算网页累计访问量

// 当页面加载时发送请求
window.onload = function() {
    fetch('/api/increment-visit', { method: 'POST' })
        .then(response => response.json())
        .then(data => {
            console.log('Visit incremented:', data);
        })
        .catch(error => {
            console.error('Error incrementing visit:', error);
        });
};

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

mongoose.connect('mongodb://localhost/mydatabase', { useNewUrlParser: true, useUnifiedTopology: true });

const VisitSchema = new mongoose.Schema({
    count: Number
});

const VisitModel = mongoose.model('Visit', VisitSchema);

const app = express();

app.use(express.json());

app.post('/api/increment-visit', async (req, res) => {
    try {
        let visit = await VisitModel.findOne();
        if (!visit) {
            visit = new VisitModel({ count: 1 });
        } else {
            visit.count += 1;
        }
        await visit.save();
        res.json({ message: 'Visit incremented successfully', count: visit.count });
    } catch (error) {
        res.status(500).json({ error: 'Failed to increment visit' });
    }
});

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

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

const app = express();
const client = redis.createClient();

app.use(express.json());

app.post('/api/increment-visit', (req, res) => {
    client.incr('web:visit:count', (err, count) => {
        if (err) {
            return res.status(500).json({ error: 'Failed to increment visit' });
        }
        res.json({ message: 'Visit incremented successfully', count: count });
    });
});

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