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：

        

 1 　　　　 /// <summary>

 2         /// 点击上传照片

 3         /// </summary>

 4         /// <param name="sender"></param>

 5         /// <param name="e"></param>

 6         private void btn_Upload_Click(object sender, RoutedEventArgs e)

 7         {

 8             PhotoChooserTask task = new PhotoChooserTask();

 9             task.PixelHeight = 100;

10             task.PixelWidth = 100;

11             task.ShowCamera = true;

12             task.Completed += new EventHandler<PhotoResult>(task_Completed);

13             task.Show();

14 

15         }

16         //选择图片完成事件，上传图片操作

17         void task_Completed(object sender, PhotoResult e)

18         {

19             const int BLOCK_SIZE = 4096;

20 

21             //Code参数可以是存入服务器图片的命名

22             Uri uri = new Uri("http://localhost:58556/WebClientUpLoadHandler.ashx?Code=123456", UriKind.Absolute);

23             WebClient wc = new WebClient();

24             wc.AllowReadStreamBuffering = true;

25             wc.AllowWriteStreamBuffering = true;

26 

27             wc.OpenWriteCompleted += (s, args) =>

28             {

29                 using (BinaryReader br = new BinaryReader(e.ChosenPhoto))

30                 {

31                     using (BinaryWriter bw = new BinaryWriter(args.Result))

32                     {

33                         long bCount = 0;

34                         long fileSize = e.ChosenPhoto.Length;

35                         byte[] bytes = new byte[BLOCK_SIZE];

36                         do

37                         {

38                             bytes = br.ReadBytes(BLOCK_SIZE);

39                             bCount += bytes.Length;

40                             bw.Write(bytes);

41                         } while (bCount < fileSize);

42                     }

43                 }

44             };

45 

46             wc.WriteStreamClosed += (s, args) =>

47             {

48                 MessageBox.Show("上传成功！");

49             };

50 

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

52         }

 

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

代码为：

 1             string name = context.Request.Params["Code"].ToString();

 2             //获取从Silverlight客户端传来的信息

 3             int length = context.Request.ContentLength;

 4             byte[] bytes = context.Request.BinaryRead(length);

 5             string uploadFolder = System.AppDomain.CurrentDomain.BaseDirectory + "\\upload";

 6             

 7             //目录不存在则新建

 8             if (!Directory.Exists(uploadFolder))

 9             {

10                 Directory.CreateDirectory(uploadFolder);

11             }

12 

13             ////写入文件

14             try

15             {

16                 using (FileStream fs = new FileStream(uploadFolder + "\\" + name+".jpg", FileMode.Create, FileAccess.Write))

17                 {

18                     fs.Write(bytes, 0, bytes.Length);

19                 } 

20                 context.Response.Write("服务器端成功");

21             }

22             catch { context.Response.Write("写入失败"); }

23         }

24 

25         public bool IsReusable

26         {

27             get

28             {

29                 return false;

30             }

31         }

 

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。