如何在Reactjs中控制img属性src从数据库获取数据

import React, { Component } from 'react';

class ImageComponent extends Component {
  constructor(props) {
    super(props);
    this.state = {
      imgUrl: null
    };
  }

  componentDidMount() {
    fetch('http://example.com/api/images') // 替换成实际的后端API地址
      .then(response => response.json())
      .then(data => this.setState({ imgUrl: data.url }))
      .catch(error => console.log(error));
  }

  render() {
    const { imgUrl } = this.state;

    return (
      <div>
        {imgUrl && <img src={imgUrl} alt="Database Image" />}
      </div>
    );
  }
}

export default ImageComponent;