大屏数据展示平台怎么搭建

import React, { useEffect, useState } from 'react';
import * as echarts from 'echarts';

const Dashboard = () => {
  const [data, setData] = useState([]);

  useEffect(() => {
    // 模拟从后端获取数据
    const fetchData = async () => {
      const response = await fetch('/api/data');
      const result = await response.json();
      setData(result);
    };

    fetchData();

    // 设置定时器模拟实时更新
    const intervalId = setInterval(fetchData, 5000);

    return () => clearInterval(intervalId);
  }, []);

  useEffect(() => {
    const chart = echarts.init(document.getElementById('chart'));
    const option = {
      xAxis: {
        type: 'category',
        data: data.map(item => item.time)
      },
      yAxis: {
        type: 'value'
      },
      series: [{
        data: data.map(item => item.value),
        type: 'line'
      }]
    };
    chart.setOption(option);
  }, [data]);

  return (
    <div id="chart" style={{ width: '100%', height: '400px' }}></div>
  );
};

export default Dashboard;