如何使用ASP.NET Core2.1和React JS创建下载功能？

[Route("api/[controller]")]
[ApiController]
public class DownloadController : ControllerBase
{
    [HttpGet]
    public IActionResult DownloadFile()
    {
        // 在这里编写下载文件的逻辑
        // 可以使用FileStreamResult或者PhysicalFileResult来返回文件
        // 示例代码：
        var filePath = "path_to_your_file";
        var fileName = "your_file_name";
        var mimeType = "application/octet-stream";
        return PhysicalFile(filePath, mimeType, fileName);
    }
}

import React from 'react';

class DownloadButton extends React.Component {
    handleDownload = () => {
        // 发送下载请求
        window.location.href = '/api/download';
    }

    render() {
        return (
            <button onClick={this.handleDownload}>下载文件</button>
        );
    }
}

export default DownloadButton;

import React from 'react';
import DownloadButton from './DownloadButton';

class App extends React.Component {
    render() {
        return (
            <div>
                <h1>React App</h1>
                <DownloadButton />
            </div>
        );
    }
}

export default App;