预约系统源码解析：打造智能定制化预约服务的技术奇迹

news2024/9/21 4:22:01

在当今数字化时代，预约系统的重要性日益凸显，而预约系统源码的开放将为各行业带来更加灵活、智能的预约解决方案。本文将深入探讨预约系统源码的技术内幕，为开发者提供实用的代码示例，助力打造智能定制化的预约服务。

技术栈概览

预约系统源码采用了现代化的技术栈，其中包括前端使用React框架，后端采用Node.js和Express框架，而数据库则选用MongoDB。以下是源码的简单结构示例：

前端代码（React）

// App.js
import React, { useState, useEffect } from 'react';
import AppointmentForm from './AppointmentForm';
import AppointmentList from './AppointmentList';
import './App.css';

const App = () => {
  const [appointments, setAppointments] = useState([]);

  useEffect(() => {
    // Fetch appointments from the server
    // Example API call using fetch:
    fetch('/api/appointments')
      .then(response => response.json())
      .then(data => setAppointments(data))
      .catch(error => console.error('Error fetching appointments:', error));
  }, []);

  const addAppointment = newAppointment => {
    // Send new appointment to the server
    fetch('/api/appointments', {
      method: 'POST',
      headers: {
        'Content-Type': 'application/json',
      },
      body: JSON.stringify(newAppointment),
    })
      .then(response => response.json())
      .then(data => setAppointments([...appointments, data]))
      .catch(error => console.error('Error adding appointment:', error));
  };

  return (
    <div className="app-container">
      <h1>预约系统</h1>
      <AppointmentForm addAppointment={addAppointment} />
      <AppointmentList appointments={appointments} />
    </div>
  );
};

export default App;

后端代码（Node.js + Express）

// server.js
const express = require('express');
const bodyParser = require('body-parser');
const mongoose = require('mongoose');
const app = express();
const port = 3001;

app.use(bodyParser.json());

// Connect to MongoDB (replace 'mongodb://localhost:27017/appointments' with your MongoDB connection string)
mongoose.connect('mongodb://localhost:27017/appointments', { useNewUrlParser: true, useUnifiedTopology: true });

const appointmentSchema = new mongoose.Schema({
  name: String,
  date: Date,
  // Add more fields as needed
});

const Appointment = mongoose.model('Appointment', appointmentSchema);

app.get('/api/appointments', async (req, res) => {
  const appointments = await Appointment.find();
  res.json(appointments);
});

app.post('/api/appointments', async (req, res) => {
  const newAppointment = new Appointment(req.body);
  const savedAppointment = await newAppointment.save();
  res.json(savedAppointment);
});

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