通过AJAX传递要解析的数组

// 创建一个数组
let dataArray = [1, 2, 3, 4, 5];

// 将数组转换为JSON字符串
let jsonString = JSON.stringify(dataArray);

// 发起AJAX请求
let xhr = new XMLHttpRequest();
xhr.open('POST', '/your-endpoint', true);
xhr.setRequestHeader('Content-Type', 'application/json');

xhr.onreadystatechange = function () {
    if (xhr.readyState === 4 && xhr.status === 200) {
        // 解析服务器响应
        let response = JSON.parse(xhr.responseText);
        console.log('Server response:', response);
    }
};

xhr.send(jsonString);

const express = require('express');
const app = express();
app.use(express.json());

app.post('/your-endpoint', (req, res) => {
    let receivedArray = req.body;
    console.log('Received array:', receivedArray);

    // 处理数组...

    // 发送响应
    res.json({ message: 'Array received and processed successfully' });
});

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