unity Socket TCP连接案例（一）

非常清晰的demo

服务端

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using System; using System.Collections; using System.Collections.Generic; using System.Net; using System.Net.Sockets; using System.Text; using System.Threading; using UnityEngine;   public class SocketServer : MonoBehaviour {       // Use this for initialization     public void StartServer () {         bt_connnect_Click();     }           // Update is called once per frame     void Update () {               }       private void bt_connnect_Click()     {         try         {             int _port = 6000;             string _ip = "127.0.0.1";               //点击开始监听时 在服务端创建一个负责监听IP和端口号的Socket             Socket socketWatch = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);             IPAddress ip = IPAddress.Parse(_ip);             //创建对象端口             IPEndPoint point = new IPEndPoint(ip, _port);               socketWatch.Bind(point);//绑定端口号             Debug.Log("监听成功!");             socketWatch.Listen(10);//设置监听，最大同时连接10台               //创建监听线程             Thread thread = new Thread(Listen);             thread.IsBackground = true;             thread.Start(socketWatch);         }         catch { }       }       /// <summary>     /// 等待客户端的连接 并且创建与之通信的Socket     /// </summary>     Socket socketSend;     void Listen(object o)     {         try         {             Socket socketWatch = o as Socket;             while (true)             {                 socketSend = socketWatch.Accept();//等待接收客户端连接                 Debug.Log(socketSend.RemoteEndPoint.ToString() + ":" + "连接成功!");                 //开启一个新线程，执行接收消息方法                 Thread r_thread = new Thread(Received);                 r_thread.IsBackground = true;                 r_thread.Start(socketSend);             }         }         catch { }     }       /// <summary>     /// 服务器端不停的接收客户端发来的消息     /// </summary>     /// <param name="o"></param>     void Received(object o)     {         try         {             Socket socketSend = o as Socket;             while (true)             {                 //客户端连接服务器成功后，服务器接收客户端发送的消息                 byte[] buffer = new byte[1024 * 1024 * 3];                 //实际接收到的有效字节数                 int len = socketSend.Receive(buffer);                 if (len == 0)                 {                     break;                 }                 string str = Encoding.UTF8.GetString(buffer, 0, len);                 Debug.Log("服务器打印：" + socketSend.RemoteEndPoint + ":" + str);                 Send("我收到了");             }         }         catch { }     }       /// <summary>     /// 服务器向客户端发送消息     /// </summary>     /// <param name="str"></param>     void Send(string str)     {         byte[] buffer = Encoding.UTF8.GetBytes(str);         socketSend.Send(buffer);     } }

　　

客户端

using System;
using System.Collections;
using System.Collections.Generic;
using System.Net;
using System.Net.Sockets;
using System.Text;
using System.Threading;
using UnityEngine;
using UnityEngine.UI;

public class SocketClient : MonoBehaviour {

    public InputField input;

    // Use this for initialization
    public void StartClient () {
        bt_connect_Click();
    }
    
    // Update is called once per frame
    void Update () {
        
    }

    public void SendMsg()
    {
        bt_send_Click(input.text);
    }

    Socket socketSend;
    private void bt_connect_Click()
    {
        try
        {
            int _port = 6000;
            string _ip = "127.0.0.1";

            //创建客户端Socket，获得远程ip和端口号
            socketSend = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);
            IPAddress ip = IPAddress.Parse(_ip);
            IPEndPoint point = new IPEndPoint(ip, _port);

            socketSend.Connect(point);
            Debug.Log("连接成功!");
            //开启新的线程，不停的接收服务器发来的消息
            Thread c_thread = new Thread(Received);
            c_thread.IsBackground = true;
            c_thread.Start();
        }
        catch (Exception)
        {
            Debug.Log("IP或者端口号错误...");
        }

    }

    /// <summary>
    /// 接收服务端返回的消息
    /// </summary>
    void Received()
    {
        while (true)
        {
            try
            {
                byte[] buffer = new byte[1024 * 1024 * 3];
                //实际接收到的有效字节数
                int len = socketSend.Receive(buffer);
                if (len == 0)
                {
                    break;
                }
                string str = Encoding.UTF8.GetString(buffer, 0, len);
                Debug.Log("客户端打印：" + socketSend.RemoteEndPoint + ":" + str);
            }
            catch { }
        }
    }

    /// <summary>
    /// 向服务器发送消息
    /// </summary>
    /// <param name="sender"></param>
    /// <param name="e"></param>
    private void bt_send_Click(string str)
    {
        try
        {
            string msg = str;
            byte[] buffer = new byte[1024 * 1024 * 3];
            buffer = Encoding.UTF8.GetBytes(msg);
            socketSend.Send(buffer);
        }
        catch { }
    }
}

 

优化demo

https://github.com/yogioh123456/NetworkDemo