在react组件内等待来自非react源的请求

import React, { Component } from 'react';

class MyComponent extends Component {
  constructor(props) {
    super(props);
    this.state = {
      isLoading: true,
      data: null,
      error: null
    };
  }

  componentDidMount() {
    // 发起非React源的请求
    fetch('https://example.com/api/data')
      .then(response => response.json())
      .then(data => {
        // 请求成功，更新组件状态
        this.setState({
          isLoading: false,
          data: data,
          error: null
        });
      })
      .catch(error => {
        // 请求失败，更新组件状态
        this.setState({
          isLoading: false,
          data: null,
          error: error.message
        });
      });
  }

  render() {
    const { isLoading, data, error } = this.state;

    if (isLoading) {
      return <div>Loading...</div>;
    }

    if (error) {
      return <div>Error: {error}</div>;
    }

    return (
      <div>
        {/* 根据请求的结果显示内容 */}
        <p>Data: {data}</p>
      </div>
    );
  }
}

export default MyComponent;