分字节传输

 Employee类

 

using System;
using System.Collections.Generic;
using System.Text;

namespace EmployeeClient
...{
    class Employee
    ...{
        public int EmployeeID;
        public int LastNameSize;
        public string LastName;
        public int FirstNameSize;
        public string FirstName;
        public int YearsService;
        public double Salary;
        public int size;
        public Employee()
        ...{

        }
        public Employee(byte[] data)
        ...{
            int place = 0;
            EmployeeID = BitConverter.ToInt32(data,place);
            place += 4;
            LastNameSize = BitConverter.ToInt32(data, place);
            place += 4;
            LastName = Encoding.ASCII.GetString(data, place, LastNameSize);
            place += 4;
            FirstNameSize = BitConverter.ToInt32(data, place);
            place += 4;
            FirstName = Encoding.ASCII.GetString(data, place, FirstNameSize);
            place += FirstNameSize;
            YearsService = BitConverter.ToInt32(data, place);
            place += 4;
            Salary = BitConverter.ToDouble(data, place);
        }
        public byte[] GetBytes()
        ...{
            byte[] data = new byte[1024];
            int place = 0;
            Buffer.BlockCopy(BitConverter.GetBytes(EmployeeID), 0, data, place, 4);
            place += 4;
            Buffer.BlockCopy(BitConverter.GetBytes(LastName.Length), 0, data, place, 4);
            place += 4;
            Buffer.BlockCopy(Encoding.ASCII.GetBytes(LastName), 0, data, place, LastName.Length);
            place += LastName.Length;
            Buffer.BlockCopy(BitConverter.GetBytes(FirstName.Length), 0, data, place, 4);
            place += 4;
            Buffer.BlockCopy(Encoding.ASCII.GetBytes(FirstName), 0, data, place, FirstName.Length);
            place += FirstName.Length;
            Buffer.BlockCopy(BitConverter.GetBytes(YearsService), 0, data, place, 4);
            place += 4;
            Buffer.BlockCopy(BitConverter.GetBytes(Salary), 0, data, place, 8);
            place += 8;

            size = place;
            return data;
        }
    }
}

 

服务器

using System;
using System.Collections.Generic;
using System.Text;

namespace EmployeeSrvr
...{
    class Employee
    ...{
        public int EmployeeID;
        public int LastNameSize;
        public string LastName;
        public int FirstNameSize;
        public string FirstName;
        public int YearsService;
        public double Salary;
        public int size;
        public Employee()
        ...{

        }
        public Employee(byte[] data)
        ...{
            int place = 0;
            EmployeeID = BitConverter.ToInt32(data,place);
            place += 4;
            LastNameSize = BitConverter.ToInt32(data, place);
            place += 4;
            LastName = Encoding.ASCII.GetString(data, place, LastNameSize);
            place += 4;
            FirstNameSize = BitConverter.ToInt32(data, place);
            place += 4;
            FirstName = Encoding.ASCII.GetString(data, place, FirstNameSize);
            place += FirstNameSize;
            YearsService = BitConverter.ToInt32(data, place);
            place += 4;
            Salary = BitConverter.ToDouble(data, place);
        }
        public byte[] GetBytes()
        ...{
            byte[] data = new byte[1024];
            int place = 0;
            Buffer.BlockCopy(BitConverter.GetBytes(EmployeeID), 0, data, place, 4);
            place += 4;
            Buffer.BlockCopy(BitConverter.GetBytes(LastName.Length), 0, data, place, 4);
            place += 4;
            Buffer.BlockCopy(Encoding.ASCII.GetBytes(LastName), 0, data, place, LastName.Length);
            place += LastName.Length;
            Buffer.BlockCopy(BitConverter.GetBytes(FirstName.Length), 0, data, place, 4);
            place += 4;
            Buffer.BlockCopy(Encoding.ASCII.GetBytes(FirstName), 0, data, place, FirstName.Length);
            place += FirstName.Length;
            Buffer.BlockCopy(BitConverter.GetBytes(YearsService), 0, data, place, 4);
            place += 4;
            Buffer.BlockCopy(BitConverter.GetBytes(Salary), 0, data, place, 8);
            place += 8;

            size = place;
            return data;
        }
    }
}

 

客户端

 

using System;
using System.Collections.Generic;
using System.Text;
using System.Net;
using System.Net.Sockets;

namespace EmployeeClient
...{
    class Program
    ...{
        static void Main(string[] args)
        ...{
            Employee emp1 = new Employee();
            Employee emp2 = new Employee();
            TcpClient client;
            emp1.EmployeeID = 1;
            emp1.LastName = "Blum";
            emp1.FirstName = "Katie Jane";
            emp1.YearsService = 12;
            emp1.Salary = 35000.50;

            emp2.EmployeeID = 2;
            emp2.LastName = "Blum";
            emp2.FirstName = "Jessica";
            emp2.YearsService = 9;
            emp2.Salary = 23700.30;
            try
            ...{
                client = new TcpClient("127.0.0.1", 9050);
            }
            catch (SocketException)
            ...{
                Console.WriteLine("Unable to connect to server");
                return;
            }
            NetworkStream ns = client.GetStream();
            byte[] data = emp1.GetBytes();
            int size = emp1.size;
            byte[] packsize = new byte[2];
            Console.WriteLine("packet size = {0}", size);
            packsize = BitConverter.GetBytes(size);
            ns.Write(packsize, 0, 2);
            ns.Write(data, 0, size);
            ns.Flush();

            data = emp2.GetBytes();
            size = emp2.size;
            packsize = new byte[2];
            Console.WriteLine("packet size={0}", size);
            packsize = BitConverter.GetBytes(size);
            ns.Write(packsize, 0, 2);
            ns.Write(data, 0, size);
            ns.Flush();
            client.Close();

        }
    }
}