从数据库到前台页面显示不出来

# 示例代码：Python Flask 后端服务
from flask import Flask, jsonify
import mysql.connector

app = Flask(__name__)

@app.route('/data')
def get_data():
    try:
        conn = mysql.connector.connect(user='user', password='password', host='host', database='database')
        cursor = conn.cursor()
        cursor.execute("SELECT * FROM table")
        data = cursor.fetchall()
        cursor.close()
        conn.close()
        return jsonify(data)
    except Exception as e:
        return str(e), 500

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

// 示例代码：JavaScript 前端代码
fetch('/data')
    .then(response => response.json())
    .then(data => {
        const container = document.getElementById('data-container');
        data.forEach(item => {
            const div = document.createElement('div');
            div.textContent = item.name;
            container.appendChild(div);
        });
    })
    .catch(error => console.error('Error:', error));