C# tcp客户端字符串（图片名称）+ 图片数据打包，发送到服务端；服务端接收到数据后解析数据包

在C#中，要将字符串和图片数据打包发送到服务端，并在服务端解析这些数据，可以按照以下步骤进行：
客户端打包数据

1、创建一个自定义的数据结构来保存字符串和图片数据。
2、将字符串转换为字节数组。
3、将图片数据转换为字节数组。
4、将字符串和图片数据的字节数组合并，并发送到服务端。

客户端代码示例：

using System;
using System.IO;
using System.Net.Sockets;
using System.Text;public class TcpClientExample
{public static void Main(){using (Socket client = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp)){client.Connect("服务端IP", 服务端端口);using (NetworkStream stream = new NetworkStream(client)){using (BufferedStream bufferedStream = new BufferedStream(stream)){string message = "这是一条消息";byte[] messageBytes = Encoding.UTF8.GetBytes(message);byte[] imageBytes = File.ReadAllBytes("图片路径");// 创建一个数据包DataPackage dataPackage = new DataPackage{Message = messageBytes,ImageData = imageBytes};// 发送数据包bufferedStream.Write(dataPackage.ToBytes(), 0, dataPackage.ToBytes().Length);}}}}
}public class DataPackage
{public byte[] Message { get; set; }public byte[] ImageData { get; set; }public byte[] ToBytes(){byte[] totalData = new byte[Message.Length + ImageData.Length];Array.Copy(Message, totalData, Message.Length);Array.Copy(ImageData, 0, totalData, Message.Length, ImageData.Length);return totalData;}
}

服务端解析数据

1、接收客户端发送的数据。
2、根据数据包的结构，分割字符串和图片数据。
3、将分割后的数据转换回原始格式。

服务端代码示例：

using System;
using System.IO;
using System.Net.Sockets;
using System.Text;public class TcpServerExample
{public static void Main(){using (Socket server = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp)){server.Bind(new IPEndPoint(IPAddress.Loopback, 服务端端口));server.Listen(10);Console.WriteLine("服务器正在监听...");using (Socket client = server.Accept()){using (NetworkStream stream = new NetworkStream(client)){using (BufferedStream bufferedStream = new BufferedStream(stream)){byte[] buffer = new byte[1024];int read = bufferedStream.Read(buffer, 0, buffer.Length);// 创建一个数据包DataPackage receivedDataPackage = new DataPackage();receivedDataPackage.FromBytes(buffer, read);// 解析数据包string receivedMessage = Encoding.UTF8.GetString(receivedDataPackage.Message);byte[] receivedImageData = receivedDataPackage.ImageData;Console.WriteLine("接收到的消息： " + receivedMessage);// 这里可以保存图片数据或者进行其他处理}}}}}
}public class DataPackage
{public byte[] Message { get; set; }public byte[] ImageData { get; set; }public void FromBytes(byte[] data, int length)
{int messageLength = length - ImageData.Length;Message = new byte[messageLength];Array.Copy(data, 0, Message, 0, messageLength);ImageData = new byte[length - messageLength];Array.Copy(data, messageLength, ImageData, 0, length - messageLength);
}
}