服务端:

using System;using System.Collections.Generic;using System.Linq;using System.Web;using System.Web.Mvc;using System.IO;namespace AA.Web.Controllers{    public class UploadController : Controller    {        //        // GET: /Upload/        public ActionResult Up()        {            var fname = Request.Form["fname"];            if (Request.Files.Count > 0)            {                var file = Request.Files[0];                var filename=Guid.NewGuid().ToString("N") +  Path.GetExtension(file.FileName);                file.SaveAs(Server.MapPath("/" + filename));            }            return Content(fname);        }    }}

客户端:

public static String uploadFile(String filename){        try {            // "http://192.168.1.7:7086/account/getUsers";//            String httpUrl = "http://192.168.1.7:7086/upload/up";            // HttpGet连接对象            HttpPost httpRequest = new HttpPost(httpUrl);            // 取得HttpClient对象            HttpClient httpClient = new DefaultHttpClient();                        MultipartEntity mEntity=new MultipartEntity();                         ContentBody cbFile=new FileBody(new File(filename));            mEntity.addPart("file1", cbFile);            mEntity.addPart("fname", new StringBody("这是一个几吧文件","text/plan", Charset.forName("utf-8")));                                    httpRequest.setEntity(mEntity);                                                // 请求HttpClient，取得HttpResponse            HttpResponse httpResponse = httpClient.execute(httpRequest,httpContext);                    // 请求成功            if (httpResponse.getStatusLine().getStatusCode() == HttpStatus.SC_OK) {                // 取得返回的字符串                String strResult = EntityUtils.toString(httpResponse.getEntity());                httpClient.getConnectionManager().shutdown();                return strResult;            }             throw new RuntimeException("网络请求执行错误!");                    } catch (Exception e) {            throw new RuntimeException(e);        }    }

需要添加httpmime-4.1.1.jar文件