构建陪诊预约系统：技术实现与用户体验

在医疗服务不断创新的背景下，陪诊预约系统作为一种结合技术与人性化服务的应用，为患者提供了更为便捷和贴心的医疗体验。让我们通过简单的示例代码，了解一下如何构建一个基本的陪诊预约系统。

技术栈选择

在开始构建陪诊预约系统之前，我们需要选择合适的技术栈。以下是一个简单的技术栈示例：

前端：使用React.js构建用户界面。
后端：使用Node.js和Express构建服务器。
数据库：选择MongoDB作为数据库存储患者和陪诊人员信息。

前端代码示例（React.js）

// App.js

import React, { useState, useEffect } from 'react';
import AppointmentForm from './components/AppointmentForm';
import AppointmentList from './components/AppointmentList';
import axios from 'axios';

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

  useEffect(() => {
    // 获取预约列表数据
    axios.get('/api/appointments')
      .then(response => setAppointments(response.data))
      .catch(error => console.error('Error fetching data: ', error));
  }, []);

  const addAppointment = (newAppointment) => {
    // 添加新的预约
    axios.post('/api/appointments', newAppointment)
      .then(response => setAppointments([...appointments, response.data]))
      .catch(error => console.error('Error adding appointment: ', error));
  };

  return (
    <div>
      <h1>陪诊预约系统</h1>
      <AppointmentForm onAddAppointment={addAppointment} />
      <AppointmentList appointments={appointments} />
    </div>
  );
}

export default App;

后端代码示例（Node.js + Express）

// server.js

const express = require('express');
const mongoose = require('mongoose');
const bodyParser = require('body-parser');
const app = express();
const PORT = process.env.PORT || 3001;

// 连接到MongoDB数据库
mongoose.connect('mongodb://localhost:27017/appointments', { useNewUrlParser: true, useUnifiedTopology: true });

// 定义数据库模型
const Appointment = mongoose.model('Appointment', {
  patientName: String,
  companionName: String,
  date: Date,
});

// 解析请求体
app.use(bodyParser.json());

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

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

app.listen(PORT, () => {
  console.log(`Server is running on http://localhost:${PORT}`);
});