问题描述
我最近正在开发一个调用 API(使用 .NET Core 2.0 开发)的 ReactJS 应用程序.
I'm recently working on a ReactJS app that's calling an API (developed with .NET Core 2.0).
我的问题是如何在 .NET Core 2.0 API 中使用 HttpPostedFileBase 来获取文件内容并将其保存在数据库中.
My question is how to use HttpPostedFileBase in an .NET Core 2.0 API in order to get file content and save it in database.
推荐答案
你在 ASP.NET Core 2.0 中没有 HttpPostedFileBase，但是你可以使用 IFormFile.
You don't have HttpPostedFileBase in ASP.NET Core 2.0, but you can use IFormFile.
[HttpPost("UploadFiles")]
public async Task<IActionResult> Post(List<IFormFile> files)
{
long size = files.Sum(f => f.Length);
// full path to file in temp location
var filePath = Path.GetTempFileName();
foreach (var formFile in files)
{
if (formFile.Length > 0)
{
using (var stream = new FileStream(filePath, FileMode.Create))
{
await formFile.CopyToAsync(stream);
}
}
}
// process uploaded files
// Don't rely on or trust the FileName property without validation.
return Ok(new { count = files.Count, size, filePath});
}
更多:https://docs.microsoft.com/en-us/aspnet/core/mvc/models/file-uploads?view=aspnetcore-2.1
IFormFile 位于以下命名空间 Microsoft.AspNetCore.Http.
IFormFile is in the following namespace Microsoft.AspNetCore.Http.
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