Question

我有处理文件上传请求的WebApi控制器。流式传输以进行文件上载的数据位于表单数据集合中。请求中还有另一个表单，其中包含我需要的会话信息。

------WebKitFormBoundarya0caUzBoIAiZmKpk
Content-Disposition: form-data; name="sessionInfo"

{"sessionId":"CC58F82D-DD87-4EA7-8DEF-42CABA045251","client":"","originalUserId":0,"group":0,"cluster":0}
------WebKitFormBoundarya0caUzBoIAiZmKpk
Content-Disposition: form-data; name="file"; filename="import.csv"
Content-Type: application/vnd.ms-excel

    "Name","Gender","Company"
    "John Smith","male","TestIcon"
    "Jane Doe","female","FastTrucks"
------WebKitFormBoundarya0caUzBoIAiZmKpk--

我的问题是如何在c＃中分离表单数据集合以获取正确的数据？

现在我有解析导入文件的代码。但我不知道如何访问name="sessionInfo"表单数据。

Answer 1

-JS

var files = document.getElementById('uploadFile').files

var data = new FormData(); for (var x = 0; x < files.length; x++) { data.append("file" + x, files[x]); }

-WebApi

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();
}

}

解析2个表单数据集合c＃和文件上载

1 个答案: