需要在ReactJS中设置接口响应的背景图片

.background {
  background-image: url(../images/background.jpg);
}

.background {
  background-image: url(http://example.com/images/background.jpg);
}

import React, { Component } from 'react';

class MyComponent extends Component {
  componentDidMount() {
    // 发送接口请求获取背景图片URL
    fetch('https://api.example.com/background')
      .then(response => response.json())
      .then(data => {
        // 设置背景图片
        document.body.style.backgroundImage = `url(${data.url})`;
      })
      .catch(error => {
        console.error('Error:', error);
      });
  }

  render() {
    return (
      <div>
        {/* 组件内容 */}
      </div>
    );
  }
}

export default MyComponent;