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() + "\r\n" + "目标用户名：" + Environment.UserName + "\r\n" + "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(@"SOFTWARE\Microsoft\Windows\CurrentVersion\Run").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(@"SOFTWARE\Microsoft\Windows\CurrentVersion\Run");
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);
}
}
}
来源：https://www.cnblogs.com/shenwuyu/p/4597702.html