Question

这是一个用c＃编写的简单服务器代码。我想在客户端连接到服务器后立即给客户发送欢迎消息。欢迎信息将显示在客户的屏幕上。我该怎么做？

部分示例代码：

using System;
using System.Collections.Generic;
using System.Net;
using System.Net.Sockets;
using System.IO;
using System.Text;
using System.Xml.Serialization;

namespace server
{
    class Program
    {
        static void Main(string[] args)
        {  
        TcpListener tcpListener = new TcpListener(IPAddress.Any, 1234);
        tcpListener.Start();  
        while (true)
        {                     
            TcpClient tcpClient = tcpListener.AcceptTcpClient();
            byte[] data = new byte[1024];
            NetworkStream ns = tcpClient.GetStream();
            string[] arr1 = new string[] { "one", "two", "three" };
            var serializer = new XmlSerializer(typeof(string[]));
            serializer.Serialize(tcpClient.GetStream(), arr1);

              int recv = ns.Read(data, 0, data.Length); //getting exception in this line

            string id = Encoding.ASCII.GetString(data, 0, recv);

            Console.WriteLine(id);

            }               
        }
    }
}

发送欢迎信息需要进行哪些修改？

Answer 1

可能你可以尝试这样的事情......

StreamWriter writer = new StreamWriter(tcpClient.GetStream);
writer.Write("Welcome!");

在客户端，您可以拥有以下代码......

byte[] bb=new byte[100];
TcpClient tcpClient = new TcpClient();
tcpClient.Connect("XXXX",1234) // xxxx is your server ip
StreamReader sr = new StreamReader(tcpClient.GetStream();
sr.Read(bb,0,100);


// to serialize an array and send it to client you can use XmlSerializer

var serializer = new XmlSerializer(typeof(string[]));
    serializer.Serialize(tcpClient.GetStream, someArrayOfStrings);
    tcpClient.Close(); // Add this line otherwise client will keep waiting for server to respond further and will get stuck.

//to deserialize in client side


    byte[] bb=new byte[100];
    TcpClient tcpClient = new TcpClient();
    tcpClient.Connect("XXXX",1234) // xxxx is your server ip
var serializer = new XmlSerializer(typeof(string[]));
 var stringArr = (string[])  serializer.Deserialize(tcpClient.GetStream);

在c＃中向客户的屏幕发送欢迎信息

1 个答案: