Question

我有一个C＃应用程序。

它将图像上传到我的服务器并在必要时下载。

这是我的客户：

sb.Clear();
sb.Append(GeneralTags.ACTION_ADD);
sb.Append(Shared.DLE);
sb.Append("GALLERY");
sb.Append(Shared.DLE);
sb.Append(Shared.CurrentClientId);
sb.Append(Shared.DLE);
sb.Append(JsonConvert.SerializeObject(gallery));
sb.Append(Shared.DLE);
byte[] byteArray = System.Web.HttpUtility.UrlEncodeToBytes(sb.ToString());
int packetCount = 0;

using (TcpClient clientSocket = new TcpClient())
{
    clientSocket.Connect(GeneralTags.RASPBERRY_PI_IP_ADDRESS, GeneralTags.RASPBERRY_PI_PORT);
    using (NetworkStream serverStream = clientSocket.GetStream())
    {
        serverStream.Write(byteArray, 0, byteArray.Length);
        serverStream.Flush();

        List<byte> requestInBytes = new List<byte>();

        if (serverStream.CanRead)
        {
            int i = 0;
            Byte[] bytesIn = new Byte[1024];
            do
            {
                i = serverStream.Read(bytesIn, 0, bytesIn.Length);
                byte[] receivedBuffer = new byte[i];
                Array.Copy(bytesIn, receivedBuffer, i);

                if (packetCount == 0)
                {
                    packetCount = BitConverter.ToInt32(receivedBuffer, 0);
                }
                requestInBytes.AddRange(receivedBuffer);
            } while (packetCount < requestInBytes.Count);

            serverStream.Close();


            var json = Encoding.UTF8.GetString(requestInBytes.ToArray(), 0, requestInBytes.ToArray().Length);
            var galleryback = JsonConvert.DeserializeObject<Gallery>(json);

            using (MemoryStream ms = new MemoryStream())
            {
                System.Diagnostics.Debug.WriteLine("BACK: " + galleryback.ImageData.Length.ToString());
                ms.Write(galleryback.ImageData, 0, galleryback.ImageData.Length);
                Shared.ViewImage(Image.FromStream(ms, true));
            }
        }
        else
        {
            MessageBox.Show("Local Device Error");

        }
    }
}

这是我的类对象：

public class Gallery
{
    public string Title { get; set; }
    public string Description { get; set; }
    public byte[] ImageData { get; set; }
    public bool IsUploaded { get; set; }
    public Int64 GalleryId { get; set; }
    public string JobRef { get; set; }
}

如果我们假设我的服务器正在正确地发送整个数据阵列（我已经检查了服务器发送的字节与我的客户端收到的字节）...

我遇到了这些类型的错误：

Unterminated string. Expected delimiter: ". Path 'ImageData', line 1, position 5515.

Unexpected character encountered while parsing value: �. Path '', line 0, position 0.

我该如何解决这个问题？

感谢

Answer 1

看起来你发送一个带有序列化JSON的字节数组只是它的一部分（你将其他东西附加到字符串，如GeneralTags.ACTION_ADD等），但是当你收到数据时，你试图反序列化整个事物。当然，由于您没有JSON格式的数据，这导致DeserializeObject无法解析传递给它的数据。您需要以某种方式提取序列化对象，例如使用正则表达式或涉及子字符串的一些计算。

从我的服务器接收图像数据时出现随机错误

1 个答案: