PHP laravel前端如何上传/发送csv文件到后端api？

<form action="/api/upload-csv" method="post" enctype="multipart/form-data">
  <input type="file" name="csv_file">
  <button type="submit">上传</button>
</form>

Route::post('/api/upload-csv', 'CsvController@upload');

<?php

namespace App\Http\Controllers;

use Illuminate\Http\Request;

class CsvController extends Controller
{
    public function upload(Request $request)
    {
        if ($request->hasFile('csv_file')) {
            $file = $request->file('csv_file');
            
            // 处理上传文件，例如保存到服务器或解析数据等
            // 这里只是演示如何获取文件名和保存文件
            $filename = $file->getClientOriginalName();
            $file->storeAs('csv', $filename);
            
            return response()->json(['message' => '上传成功']);
        }
        
        return response()->json(['message' => '没有找到上传的文件'], 400);
    }
}