android中利用httpclient上传文件

          HttpParams parms = new BasicHttpParams();          parms.setParameter( "charset", "gbk");          HttpClient httpClient = new DefaultHttpClient(parms);          HttpPost httppost = new HttpPost(uploadURL);          File f= con.getFileStreamPath( fileName);          Log. e("my", f.getAbsolutePath());          MultipartEntity mpEntity = new MultipartEntity();          FileBody  file= new FileBody(f);          mpEntity.addPart( "file", file);          httppost.setEntity(mpEntity);