将文件上载到.netcore中指定的路径

using Microsoft.AspNetCore.Http;
using Microsoft.AspNetCore.Mvc;
using System.IO;

[Route("api/[controller]")]
[ApiController]
public class FileUploadController : ControllerBase
{
    private readonly string _uploadPath = Path.Combine(Directory.GetCurrentDirectory(), "uploads");

    [HttpPost]
    public IActionResult UploadFile(IFormFile file)
    {
        if (file == null || file.Length == 0)
            return BadRequest("No file selected.");

        if (!Directory.Exists(_uploadPath))
        {
            Directory.CreateDirectory(_uploadPath);
        }

        var filePath = Path.Combine(_uploadPath, file.FileName);
        using (var stream = new FileStream(filePath, FileMode.Create))
        {
            file.CopyTo(stream);
        }

        return Ok(new { message = "File uploaded successfully." });
    }
}

{
  "Kestrel": {
    "Limits": {
      "MaxRequestBodySize": 10485760 // 10MB
    }
  }
}

if (!file.ContentType.StartsWith("image/"))
{
    return BadRequest("Invalid file type.");
}