Unity C# 简单的Chat 聊天功能的实现

目录

1、打开 VS 2017 ，新建一个控制台程序，具体如下图

2、 服务端 Main 程序

3、Unity 实现客户端代码

4、运行效果

---

 

在 Unity 和 VS 2017 ，使用C#开发简单的聊天程序，包括服务端和客服端。

 

1、打开 VS 2017 ，新建一个控制台程序，具体如下图

 

2、 服务端 Main 程序

using System;
using System.Net.Sockets;


namespace TestServer_XAN
{
    class Program
    {
        // 设置连接端口
        const int portNo = 500;

        /// 

        /// 聊天服务程序入口
        /// 
        /// 
        static void Main(string[] args)
        {
            // 服务器地址（根据自己的需要填写）
            System.Net.IPAddress localAdd = System.Net.IPAddress.Parse("127.0.0.1");

            // 绑定 IP 和端口号 开始监听客端户接入
            TcpListener listener = new TcpListener(localAdd,portNo);
            listener.Start();
            Console.WriteLine("Server is Starting...\n");

            // 死循环监听客户端连接服务器
            while (true) {
                ChatClient user = new ChatClient(listener.AcceptTcpClient());

                Console.WriteLine(user._clientIP + " is joined...\n");
            }
            
        }
    }
}

using System;
using System.Collections;
using System.Net.Sockets;


namespace TestServer_XAN
{
    public class ChatClient
    {
        /// 

        /// 客户端的集合
        /// 
        public static Hashtable AllClients = new Hashtable();

        /// 

        /// Tcp 客户端
        /// 
        private TcpClient _client;

        /// 

        /// 客户端 IP
        /// 
        public string _clientIP;

        /// 

        /// 客户端昵称
        /// 
        private string _clientNickname;
        
        /// 

        /// 客户端数据
        /// 
        private byte[] data;

        /// 

        /// 客户端连接的第一次
        /// 
        private bool ReceiveNick = true;

        /// 

        /// 构造函数u，初始化数据，并且绑定事件
        /// 
        /// 
        public ChatClient(TcpClient client) {
            this._client = client;
            this._clientIP = client.Client.RemoteEndPoint.ToString();
            AllClients.Add(this._clientIP, this);
            data = new byte[this._client.ReceiveBufferSize];

            client.GetStream().BeginRead(data,0,System.Convert.ToInt32(this._client.ReceiveBufferSize),ReceiveMessage,null);
        }

        /// 

        /// 接收消息
        /// 
        /// 
        public void ReceiveMessage(IAsyncResult ar) {
            int bytesRead;
            try {
                lock (this._client.GetStream()) {
                    bytesRead = this._client.GetStream().EndRead(ar);
                }

                if (bytesRead < 1)
                {
                    AllClients.Remove(this._clientIP);
                    Broadcast(this._clientNickname + " has left the chat");
                    return;
                }
                else {
                    string messageReceived = System.Text.Encoding.ASCII.GetString(data, 0, bytesRead);

                    // 连接服务器的时候
                    if (ReceiveNick)
                    {
                        this._clientNickname = messageReceived;
                        Broadcast(this._clientNickname + ">" + messageReceived);
                        ReceiveNick = false;
                    }
                    else {
                        Broadcast(this._clientNickname + ">" + messageReceived);
                    }
                }
                lock (this._client.GetStream()) {
                    this._client.GetStream().BeginRead(data,0,System.Convert.ToInt32(this._client.ReceiveBufferSize), ReceiveMessage,null);
                }
            }
            catch (Exception ex) {
                AllClients.Remove(this._clientIP);
                Broadcast(this._clientNickname + "has left ths chat.");
            }
        }

        /// 

        /// 发送消息
        /// 
        /// 
        public void SendMessage(string message) {
            try {
                System.Net.Sockets.NetworkStream ns;
                lock (this._client.GetStream()) {
                    ns = this._client.GetStream();
                }

                byte[] bytesTosend = System.Text.Encoding.ASCII.GetBytes(message);
                ns.Write(bytesTosend,0,bytesTosend.Length);
                ns.Flush();
            }
            catch (Exception ex) {

            }
        }

        /// 

        /// 广播消息
        /// 
        /// 
        public void Broadcast(string message) {
            Console.WriteLine(message);
            foreach (DictionaryEntry c in AllClients)
            {
                ((ChatClient)(c.Value)).SendMessage(message + Environment.NewLine);
            }
        }

    }
}

3、Unity 实现客户端代码

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

public class ClientHandler : MonoBehaviour
{
    const int portNo = 500;
    private TcpClient _client;

    byte[] data;


    public string nickName = "";
    public string message = "";
    public string sendMsg = "";

    /// 

    /// UI界面
    /// 
    void OnGUI() {
        nickName = GUI.TextField(new Rect(10,10,100,20),nickName);
        message = GUI.TextField(new Rect(10, 40, 300, 200), message);
        sendMsg = GUI.TextField(new Rect(10, 250, 210, 20), sendMsg);

        if (GUI.Button(new Rect(120,10,80,20),"connect")) {
            Connect();
        }

        if (GUI.Button(new Rect(230,250,80,20), "Send")) {
            Send();
        }
    }

    /// 

    /// 连接服务器
    /// 
    public void Connect() {
        //服务器的IP和端口号
        this._client = new TcpClient("127.0.0.1",portNo);
        data = new byte[this._client.ReceiveBufferSize];

        SendMessage(nickName);
        this._client.GetStream().BeginRead(data,0,System.Convert.ToInt32(this._client.ReceiveBufferSize), ReceiveMessage, null);

    }

    /// 

    /// 发送
    /// 
    private void Send() {
        SendMessage(sendMsg);
        sendMsg = "";
    }

    /// 

    /// 发送消息
    /// 
    /// 
    public void SendMessage(string message) {
        try {
            NetworkStream ns = this._client.GetStream();
            byte[] data = System.Text.Encoding.ASCII.GetBytes(message);
            ns.Write(data, 0, data.Length);
            ns.Flush();
        }
        catch (Exception ex) {

        }
    }

    /// 

    /// 接收消息
    /// 
    /// 
    public void ReceiveMessage(IAsyncResult ar) {
        try
        {
            int bytesRead;
            bytesRead = this._client.GetStream().EndRead(ar);

            if (bytesRead < 1)
            {
                return;
            }
            else {
                Debug.Log(System.Text.Encoding.ASCII.GetString(data,0,bytesRead));

                message += System.Text.Encoding.ASCII.GetString(data,0,bytesRead);
            }

            this._client.GetStream().BeginRead(data,0,System.Convert.ToInt32(this._client.ReceiveBufferSize),ReceiveMessage, null);
        }
        catch (System.Exception ex)
        {
        	
        }
    }
}

4、运行效果