Asp.net核心rc2 web api文件上传

Question

需要帮助,我如何在ASP.NET核心rc2 web api上传文件.当我使用asp.net 4.5它使用此代码:

   @{
ViewBag.Title = "Home Page";
    }

 <div>
<input type="file" name="upload" id="uploadFile"  /><br />
<button id="submit">?????????</button>
</div>

 @section scripts{
<script type="text/javascript">

$('#submit').on('click', function (e) {
    e.preventDefault();
    var files = document.getElementById('uploadFile').files;
    if (files.length > 0) {
        if (window.FormData !== undefined) {
            var data = new FormData();
            for (var x = 0; x < files.length; x++) {
                data.append("file" + x, files[x]);
            }

            $.ajax({
type: "POST",
url: 'api/values/post',
contentType: false,
processData: false,
data: data,
success: function (result) {
    alert(result);
},
error: function (xhr, status, p3) {
    alert(status);
}
});
        } else {
            alert("??????? ?? ???????????? ???????? ?????? HTML5!");
        }
    }
});

}

public class ValuesController : ApiController
{
public async Task<IHttpActionResult> Post()  
{
    if (!Request.Content.IsMimeMultipartContent())
    {
        return BadRequest();
    }
    var provider = new MultipartMemoryStreamProvider();
    // ???? ? ????? ?? ???????
    string root = System.Web.HttpContext.Current.Server.MapPath("~/Files/");
    await Request.Content.ReadAsMultipartAsync(provider);

    foreach (var file in provider.Contents)
    {
        var filename = file.Headers.ContentDisposition.FileName.Trim('\"');
        byte[] fileArray = await file.ReadAsByteArrayAsync();

        using (System.IO.FileStream fs = new System.IO.FileStream(root + filename, System.IO.FileMode.Create))
        {
            await fs.WriteAsync(fileArray, 0, fileArray.Length);
        }
    }
    return Ok("????? ?????????");
}
}

现在,在asp.net核心rc2它不起作用,如果在没有ajax的mvc中使用IFromFile它可以工作,但我们使用js + ajax + webapi

Answer 1

我有同样的问题,我这样解决了:

[HttpPost]
public async Task<IActionResult> PostFile()
{   
   //Read all files from angularjs FormData post request
 var files = Request.Form.Files;
  .....
}

要获得完整的解决方案,您还可以查看我的问题

Answer 2

在我的asp.net核心程序中,我将控制器方法更改为

[HttpPost]
public async Task<IActionResult> Upload(ICollection<IFormFile> file)
{
     ...       
}

我添加了[HttpPost]注释并使用了新IFormFile界面.