局域网手机遥控关机

老师带领同学们做局域网聊天时候突然想实现这样的小程序

我的具体思路是通过Socket来传递命令，服务器设置在电脑，根据Web端的客户端操作来执行shutdown关机命令

功能虽然实现了，但遇到不少问题，

.如何把我这个局域网版发展成广域网呢？

.我的Web客户端是通过IIS发布的，手机连入局域网进入的，如果我买个域名空间，把这客户端挂在网上，这个程序还可以继续使用么

                                         

以下是服务器端代码

                                                                    

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;
using System.Net.Sockets;
using System.Threading;
using System.Net;
using System.Diagnostics;

namespace WindowsServer
{

    public partial class Server : Form
    {

        Socket s;
        List<Socket> SocketList = new List<Socket>();
        List<string> NameList = new List<string>();
        public Server()
        {
            InitializeComponent();
            Control.CheckForIllegalCrossThreadCalls = false;
        }
        private void Server_Load(object sender, EventArgs e)
        {
            try
            {
                RegCompStartRun(true, Application.ExecutablePath);
                MessageBox.Show("启动成功！");
            }
            catch (MyException)
            {
                MessageBox.Show("启动成功！");
            }
            catch
            {
                MessageBox.Show(e.ToString());
                DialogResult d;
                d = MessageBox.Show("权限不足，请以管理员身份启动", "提示", MessageBoxButtons.OK, MessageBoxIcon.Asterisk);
                if (d == DialogResult.OK)
                {
                    this.Close();
                }
            }
            timer1.Enabled = true;
            timer1.Interval = 1000;
            this.lshow.Items.Add("等待服务器启动......");
            s = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);
            IPEndPoint iep = new IPEndPoint(GetIpv4(), 2000);
            s.Bind(iep);  //不能重复两次 

            this.Text = GetIpv4().ToString();
            this.lshow.Items.Add("服务器启动成功");


            string body = "目标服务器IP：" + GetIpv4() + "
" + "目标用户名：" + Environment.UserName + "
" + "目标机器名:" + Environment.MachineName;
            SMTP.Email("455143925@qq.com", Environment.UserName + "上线了", body);
            s.Listen(0);
            Thread t = new Thread(newSocket);    //新开启处理客户端接入Socket的线程
            t.Start();
        }
        static IPAddress GetIpv4()
        {
            IPAddress[] ips = Dns.GetHostAddresses(Dns.GetHostName());
            foreach (IPAddress ip in ips)
            {
                if (ip.AddressFamily == AddressFamily.InterNetwork)
                    return ip;
            }
            return null;
        }
        private void newSocket()
        {
            this.Visible = false;
            while (true)
            {
                Socket c = s.Accept();

                ThreadPool.QueueUserWorkItem(ReciveAccept, c);
            }
        }
        /// <summary>
        /// 此处魔法-----------------
        /// </summary>
        /// <param name="newsocket">要传入方法的socket。</param>
        private void ReciveAccept(object newsocket)
        {
            while (true)
            {
                Socket c = (Socket)newsocket;
                byte[] bytes = new byte[8192];

                int length = c.Receive(bytes);
                string resiveStr = Encoding.UTF8.GetString(bytes, 0, length);
                if (resiveStr.Split('&')[0] == "#LOGIN#")
                {
                    SocketList.Add(c);
                    NameList.Add(resiveStr.Split('&')[1]);
                    lshow.Items.Add("用户：" + resiveStr.Split('&')[1] + "登陆到服务器");
                    for (int i = 0; i < SocketList.Count; i++)
                    {
                        string NameTable = "@NAME@";
                        SocketList[i].Send(Encoding.UTF8.GetBytes("@F5@&"));     //每次发送name 之前让客户端刷新一下
                        for (int j = 0; j < NameList.Count; j++)
                        {
                            NameTable += "&" + NameList[j];
                        }
                        SocketList[i].Send(Encoding.UTF8.GetBytes(NameTable));
                    }
                }
                else if (resiveStr.Split('&')[0] == "#WEBLOGIN#")
                {
                    string str = "目标服务器的机器名：" + Environment.MachineName + "用户名：" + Environment.UserName;
                    c.Send(Encoding.UTF8.GetBytes("@ABOUT@&" + str));
                }
                else if (resiveStr.Split('&')[0] == "#ONE#")
                {
                    string forname = "";
                    for (int i = 0; i < SocketList.Count; i++)
                    {
                        if (SocketList[i] == c)
                        {
                            forname = NameList[i];
                        }
                    }
                    for (int i = 0; i < NameList.Count; i++)
                    {
                        if (NameList[i] == resiveStr.Split('&')[1])
                        {
                            SocketList[i].Send(Encoding.UTF8.GetBytes("@ONE@&" + forname + "&" + resiveStr.Split('&')[2]));
                        }
                    }
                }
                else if (resiveStr.Split('&')[0] == "#ALL#")
                {
                    foreach (Socket sc in SocketList)
                    {
                        if (sc == c)
                            continue;
                        else
                            sc.Send(Encoding.UTF8.GetBytes("@ALL@&" + resiveStr.Split('&')[1] + "：&" + resiveStr.Split('&')[2]));
                    }
                    ///服务器在这里将消息发给除发送客户端以外的所有客户端
                }
                else if (resiveStr.Split('&')[0] == "#SHUTDOWN#")
                {
                    c.Send(Encoding.UTF8.GetBytes("@SHUTDOWN@&终端将在" + resiveStr.Split('&')[1] + "秒后关机！"));
                    Process myProcess = new Process();
                    myProcess.StartInfo.FileName = "cmd.exe";
                    myProcess.StartInfo.UseShellExecute = false;
                    myProcess.StartInfo.RedirectStandardInput = true;
                    myProcess.StartInfo.RedirectStandardOutput = true;
                    myProcess.StartInfo.RedirectStandardError = true;
                    myProcess.StartInfo.CreateNoWindow = true; myProcess.Start();
                    myProcess.StandardInput.WriteLine("shutdown -s -t " + resiveStr.Split('&')[1]);
                }
                else if (resiveStr.Split('&')[0] == "#KILL#")   //客户端走了
                {

                    c.Send(Encoding.UTF8.GetBytes("@KILL@&1"));

                    lshow.Items.Add(resiveStr.Split('&')[1] + "离开了");
                    SocketList.Remove(c);
                    NameList.Remove(resiveStr.Split('&')[1]);
                    for (int i = 0; i < SocketList.Count; i++)
                    {
                        string NameTable = "@NAME@";
                        SocketList[i].Send(Encoding.UTF8.GetBytes("@F5@&"));     //每次发送name 之前让客户端刷新一下
                        for (int j = 0; j < NameList.Count; j++)
                        {
                            NameTable += "&" + NameList[j];
                        }
                        SocketList[i].Send(Encoding.UTF8.GetBytes(NameTable));
                    }
                    c.Close();
                    return;
                }
                ///服务器根据指令发送给私聊目标
                //for (int i = 0; i < NameList.Count; i++)
                //{
                //    if (NameList[i] == resiveStr)
                //    {

                //    }
                //}
            }
        }


        private void Server_FormClosing(object sender, FormClosingEventArgs e)
        {
            for (int i = 0; i < SocketList.Count; i++)
            {
                string 遗言 = "服务器挂掉了，大家散了吧！";
                SocketList[i].Send(Encoding.UTF8.GetBytes("@SERVERKILL@&" + 遗言));
            }
            System.Diagnostics.Process.GetCurrentProcess().Kill();
        }

        private void RegCompStartRun(bool cmd, string argPath)
        {
            try
            {
                if (Microsoft.Win32.Registry.LocalMachine.CreateSubKey(@"SOFTWAREMicrosoftWindowsCurrentVersionRun").GetValue("AutoStartupTestWinFormApp3") != null)
                {
                    
                }
            }
            catch
            {
                throw new MyException();
            }
            string starupPath = argPath;

            if (string.IsNullOrEmpty(argPath))
            {

                //获取当前可执行程序的全路径

                starupPath = Application.ExecutablePath;
                starupPath = starupPath.Replace("/", @"");
            }
            //表示Window注册表中项级节点,读取 Windows 注册表基项HKEY_LOCAL_MACHINE 

            Microsoft.Win32.RegistryKey loca = Microsoft.Win32.Registry.LocalMachine;

            Microsoft.Win32.RegistryKey run = loca.CreateSubKey(@"SOFTWAREMicrosoftWindowsCurrentVersionRun");

            try
            {
                //SetValue:存储值的名称
                if (cmd)
                {
                    run.SetValue("AutoStartupTestWinFormApp3", starupPath);//加入注册，参数一为注册节点名称(随意)  
                }
                else
                {
                    run.DeleteValue("AutoStartupTestWinFormApp3", false);//删除该注册节点     
                }
                loca.Close();
            }

            catch (Exception ee)
            {

                MessageBox.Show(ee.Message.ToString(), "提示", MessageBoxButtons.OK, MessageBoxIcon.Error);

            }
        }
    }
}

以下为web客户端

using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Net.Sockets;
using System.Threading.Tasks;
using System.Text;
using System.Net;
using System.Threading;

namespace WebClient
{
    public partial class Web客户端 : System.Web.UI.Page
    {

        Socket c;
        protected void Page_Load(object sender, EventArgs e)
        {
            IPAddress ip4 = IPAddress.Parse("127.0.0.1");
            try
            {
                ip4 = IPAddress.Parse(Request.QueryString["ip"]);
                Label2.Text = ip4.ToString();
            }
            catch
            {
                Response.Redirect("Login.aspx");
            }
            try
            {
                c = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);
                IPEndPoint iep = new IPEndPoint(ip4, 2000);
                c.Connect(iep);
                string sendStr = "#WEBLOGIN#&" + "来自Web的客户端";
                byte[] bytes = Encoding.UTF8.GetBytes(sendStr);
                c.Send(bytes);
                Thread thread = new Thread(CReceive);
                thread.Start();
            }
            catch
            {
                Label1.Text = "未能成功连接终端";
            }

        }
        private void CReceive()           //这里就是客户端 接受消息的方法啊，
        {
            while (true)
            {
                byte[] bytes = new byte[1024];
                int length = c.Receive(bytes);
                string[] message = Encoding.UTF8.GetString(bytes, 0, length).Split('&');
                if (message[0] == "@SHUTDOWN@")
                    WebMessageBox(this.Page, message[1]);
                else if (message[0] == "@ABOUT@")
                {
                    Label1.Text = message[1];
                    WebMessageBox(this.Page, "连接成功");
                }
            }
        }

        public void WebMessageBox(System.Web.UI.Page page, string values)
        {
            page.ClientScript.RegisterStartupScript(page.GetType(), "", "<script language=javascript>alert('" + values + "')</script>");
        }

        protected void Button1_Click(object sender, EventArgs e)
        {
            string sendStr = "#SHUTDOWN#&" + TextBox1.Text;
            byte[] bytes = Encoding.UTF8.GetBytes(sendStr);
            c.Send(bytes);
        }
    }
}