演示如何通过 web api 上传文件

WebApiWebFormHost/UploadFileController.cs

/* * 通过 web api 上传文件 */using System;using System.Collections.Generic;using System.Linq;using System.Net;using System.Net.Http;using System.Threading.Tasks;using System.Web.Http;namespace MVC40.Controllers{    public class UploadFileController : ApiController    {        public async Task
     
       Post()        {            // 检查是否是 multipart/form-data            if (!Request.Content.IsMimeMultipartContent("form-data"))                throw new HttpResponseException(HttpStatusCode.UnsupportedMediaType);            // 设置上传目录            var provider = new MultipartFormDataStreamProvider(@"c:\\temp");                     // 接收数据，并保存文件            var bodyparts = await Request.Content.ReadAsMultipartAsync(provider);            string result = "";            // 获取表单数据            result += "formData txtName: " + bodyparts.FormData["txtName"];            result += "
      
";            // 获取文件数据            result += "fileData headers: " + bodyparts.FileData[0].Headers; // 上传文件相关的头信息            result += "
      
";            result += "fileData localFileName: " + bodyparts.FileData[0].LocalFileName; // 文件在服务端的保存地址，需要的话自行 rename 或 move            return result;        }    }}
     

WebApiWebFormHost/UploadDemo.cshtml

@{    Layout = null;}        @using (Html.BeginForm("UploadFile", "api", FormMethod.Post, new { enctype = "multipart/form-data" }))    {                 
     
      please select a file
     
                                }