wp7图片上传服务器

做一个wp7手机上传图片到服务器的功能，具体丝路是在手机端做一个照相或者选择图片的功能，点击上传，在服务器端做一个一般处理程序，接受上传的文件，存入文件夹，下面是主要代码：

手机端代码：

        

　　　　 /// <summary>
        /// 点击上传照片
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void btn_Upload_Click(object sender, RoutedEventArgs e)
        {
            PhotoChooserTask task = new PhotoChooserTask();
            task.PixelHeight = 100;
            task.PixelWidth = 100;
            task.ShowCamera = true;
            task.Completed += new EventHandler<PhotoResult>(task_Completed);
            task.Show();

        }
        //选择图片完成事件，上传图片操作
        void task_Completed(object sender, PhotoResult e)
        {
            const int BLOCK_SIZE = 4096;

            //Code参数可以是存入服务器图片的命名
            Uri uri = new Uri("http://localhost:58556/WebClientUpLoadHandler.ashx?Code=123456", UriKind.Absolute);
            WebClient wc = new WebClient();
            wc.AllowReadStreamBuffering = true;
            wc.AllowWriteStreamBuffering = true;

            wc.OpenWriteCompleted += (s, args) =>
            {
                using (BinaryReader br = new BinaryReader(e.ChosenPhoto))
                {
                    using (BinaryWriter bw = new BinaryWriter(args.Result))
                    {
                        long bCount = 0;
                        long fileSize = e.ChosenPhoto.Length;
                        byte[] bytes = new byte[BLOCK_SIZE];
                        do
                        {
                            bytes = br.ReadBytes(BLOCK_SIZE);
                            bCount += bytes.Length;
                            bw.Write(bytes);
                        } while (bCount < fileSize);
                    }
                }
            };

            wc.WriteStreamClosed += (s, args) =>
            {
                MessageBox.Show("上传成功！");
            };

            wc.OpenWriteAsync(uri, "POST");
        }

在服务器端建一个一般处理程序WebClientUpLoadHandler.ashx

代码为：

            string name = context.Request.Params["Code"].ToString();
            //获取从Silverlight客户端传来的信息
            int length = context.Request.ContentLength;
            byte[] bytes = context.Request.BinaryRead(length);
            string uploadFolder = System.AppDomain.CurrentDomain.BaseDirectory + "\upload";
            
            //目录不存在则新建
            if (!Directory.Exists(uploadFolder))
            {
                Directory.CreateDirectory(uploadFolder);
            }

            ////写入文件
            try
            {
                using (FileStream fs = new FileStream(uploadFolder + "\" + name+".jpg", FileMode.Create, FileAccess.Write))
                {
                    fs.Write(bytes, 0, bytes.Length);
                } 
                context.Response.Write("服务器端成功");
            }
            catch { context.Response.Write("写入失败"); }
        }

        public bool IsReusable
        {
            get
            {
                return false;
            }
        }

成功实现了从手机端上传图片功能，在此基础上可以继续添加别的功能，在不同应用中用到。