Unity使用webSocket与服务器通信（一）搭建一个简单地服务器和客户端

你想在unity WebGL里面使用TCP通信吗，那么你可以用一用webSocket。当然，桌面端也可以使用webSocket，这样Unity多平台发布的时候，业务层的通信代码可以使用一套，而不是桌面用socket，网页用http…

一、什么是webSocket？

顾名思义，它就是web版的socket？那什么是socket呢？…

二、Unity中webSocket相关的包有哪些？

endel/NativeWebSocket
项目链接

三、Unity客户端的实现

• 联网演示
  

• 绑定脚本
  

• 代码清单
  代码来自NativeWebSocket官网demo，略作修改

using System; using System.Collections; using System.Collections.Generic; using UnityEngine; using UnityEngine.UI; using NativeWebSocket;  public class Connection : MonoBehaviour {     WebSocket websocket;      public Text textLog;      // Start is called before the first frame update     async void Start()     {         websocket = new WebSocket("ws://192.168.0.146:8081");          websocket.OnOpen += () =>         {             Debug.Log("Connection open!");             textLog.text = $"Connection open! {Time.realtimeSinceStartup} \n {textLog.text}";         };          websocket.OnError += (e) =>         {             Debug.Log("Error! " + e);             textLog.text = $"Error:{e} {Time.realtimeSinceStartup} \n {textLog.text}";         };          websocket.OnClose += (e) =>         {             Debug.Log("Connection closed!");             textLog.text = $"Connection closed! {Time.realtimeSinceStartup} \n {textLog.text}";         };          websocket.OnMessage += (bytes) =>         {             Debug.Log("OnMessage!");             textLog.text = $"OnMessage! {Time.realtimeSinceStartup} \n {textLog.text}";             Debug.Log(bytes);              // getting the message as a string             var message = System.Text.Encoding.UTF8.GetString(bytes);             textLog.text = $"消息内容：{message} {Time.realtimeSinceStartup} \n {textLog.text}";             //Debug.Log("OnMessage! " + message);         };          // Keep sending messages at every 0.3s         InvokeRepeating("SendWebSocketMessage", 0.0f, 0.3f);          // waiting for messages         await websocket.Connect();     }      void Update()     { #if !UNITY_WEBGL || UNITY_EDITOR         websocket.DispatchMessageQueue(); #endif     }      async void SendWebSocketMessage()     {         if (websocket.State == WebSocketState.Open)         {             // Sending bytes             await websocket.Send(new byte[] { 10, 20, 30 });              // Sending plain text             await websocket.SendText("plain text message");         }     }      private async void OnApplicationQuit()     {         await websocket.Close();     }  } 

四、服务端的实现（C# WinForm）

1、服务器端用到的包

github链接

2、主要代码

代码来自官网Demo，略有修改

using System; using System.Collections.Generic; using System.ComponentModel; using System.Data; using System.Diagnostics; using System.Drawing; using System.Linq; using System.Text; using System.Threading.Tasks; using System.Windows.Forms; using Fleck;  namespace WinFormsApp1 {     public partial class Form1 : Form     {         public Form1()         {             InitializeComponent();         }          private void button1_Click(object sender, EventArgs e)         {             var server = new WebSocketServer("ws://192.168.0.146:8081");  //ws://localhost:8081    ws://127.0.0.0:8181             server.Start(socket =>             {                 socket.OnOpen = () =>                 {                     Debug.WriteLine($"有新用户连入：{socket.ConnectionInfo.ClientIpAddress}");                 };                 socket.OnClose = () =>                 {                     Debug.WriteLine($"用户断开连接：{socket.ConnectionInfo.ClientIpAddress}");                 };                 socket.OnMessage = message =>                 {                     socket.Send($"服务器收到消息 : {DateTime.Now.ToString()}");                     Debug.WriteLine($"收到一条消息，来自：{socket.ConnectionInfo.ClientIpAddress}");                 };             });              Debug.WriteLine("服务器已经启动！");         }     } } 

五、客户端的WebGL和Win 桌面测试

桌面和webGL都没问题、这样，可以一套代码打天下。
以前用socket在桌面(包括一体头盔)，在web端只能用http，现在可以统一了。