计算机后台服务-更新下载，重启————未来之窗行业应用跨平台架构

一在教育中应用

1. 提高效率：能够快速收集大量学生的卷子，节省了传统人工收集和整理的时间。
2. 准确性：减少了人工收卷过程中可能出现的错漏和混乱，确保每份卷子都能准确无误地被收集和记录。
3. 即时性：可以实时接收学生提交的卷子，老师能够更快地开始批改和评估。
4. 自动化处理：自动对卷子进行初步分类、编号等处理，方便后续的管理和查找。
5. 数据安全：卷子以电子形式存储在后台服务器，相对更安全，降低了丢失或损坏的风险。
6. 便于统计分析：可以对收卷情况进行统计，例如提交时间、未提交人数等，为教学管理提供数据支持。
7. 环保节能：减少了纸张的使用，有利于环保。
8. 远程操作：支持学生在不同地点远程提交卷子，适应在线教育和混合教学模式。

二、代码

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Diagnostics;
using System.ServiceProcess;
using System.Text;
using System.Net;
using System.IO;
using System.Web;
using System.Collections.Specialized;
using System.Threading;
using System.Web;
using System.Net.Sockets;
using System.IO;
using System;

namespace CyberWin.Work.Qjcx.CloudDeploymentClientSvr
{
    public partial class Service1 : ServiceBase
    {
        private int Cyber_Port = 23415;
        private Thread CyberThread;
        private Thread CyberThread_bordcast_client;

        EndPoint ep;
        string receiveData;

        public Service1()
        {
            InitializeComponent();
        }

        protected override void OnStart(string[] args)
        {
            // TODO: Add code here to start your service.
            CyberThread = new Thread(new ThreadStart(cy_web));
            CyberThread_bordcast_client = new Thread(new ThreadStart(AcceptMessage));

          //  Process.Start("CyberWin.Work.Qjcx.Cloudonline.exe");

            CyberThread.Start();
            CyberThread_bordcast_client.Start();
            
           
           // CyberThread_bordcast_client = new Thread(new ThreadStart(AcceptMessage));
           // CyberThread_bordcast_client.Start();
        }

        protected override void OnStop()
        {
            // TODO: Add code here to perform any tear-down necessary to stop your service.
            CyberThread.Abort();
            CyberThread_bordcast_client.Abort();
        }
        //接受广播并回传数据
        #region
        //接收信息
        private void AcceptMessage()
        {
            try
            {
                //d定义socket对象
                Socket socket = new Socket(AddressFamily.InterNetwork, SocketType.Dgram, ProtocolType.Udp);
                IPEndPoint iep = new IPEndPoint(IPAddress.Any, 1244);
                socket.Bind(iep);
                ep = (EndPoint)iep;
                byte[] bytes = new byte[1024];
                while (true)
                {
                    socket.ReceiveFrom(bytes, ref ep);
                    receiveData = System.Text.Encoding.Unicode.GetString(bytes);
                    receiveData = receiveData.TrimEnd('\u0000');
                    Thread th = new Thread(new ThreadStart(Acc));
                    th.Start();
                    //th.Abort();

                }
                socket.Close();
            }catch(Exception ex){}
        }
        private void Acc()
        {
            try
            {
                //string message = "来自" + ep.ToString() + "的消息";
                //DialogResult result = MessageBox.Show(receiveData, message, MessageBoxButtons.AbortRetryIgnore);
                string ip = ep.ToString();
                int pos = ip.IndexOf(":");
                string ip_add = ip.Substring(0, pos);
                OpenReadWithHttps("http://" + ip_add + ":1214/未来之窗?client=" + cls_computer_operator.GetLocalIP(), "", "GB2312");
            }catch (Exception ex){
            }
        }

        ///<summary>

        ///采用https协议访问网络

        ///</summary>

        ///<param name="URL">url地址</param>

        ///<param name="strPostdata">发送的数据</param>

        ///<returns></returns>

        private  static string OpenReadWithHttps(string URL, string strPostdata, string strEncoding)
        {
            try
            {
                Encoding encoding = Encoding.Default;

                HttpWebRequest request = (HttpWebRequest)WebRequest.Create(URL);

                request.Method = "post";

                request.Accept = "text/html, application/xhtml+xml, */*";

                request.ContentType = "application/x-www-form-urlencoded";

                byte[] buffer = encoding.GetBytes(strPostdata);

                request.ContentLength = buffer.Length;

                request.GetRequestStream().Write(buffer, 0, buffer.Length);

                HttpWebResponse response = (HttpWebResponse)request.GetResponse();

                using (StreamReader reader = new StreamReader(response.GetResponseStream(), System.Text.Encoding.GetEncoding(strEncoding)))
                {

                    return reader.ReadToEnd();
                }
            }
            catch (Exception ex)
            {
                return "cyber_empty";
            }
        }

    
        #endregion
        //
        private void cy_web()
        {
            //AcceptMessage();

            using (HttpListener hl = new HttpListener())
            {
                hl.AuthenticationSchemes = AuthenticationSchemes.Anonymous;
                hl.Prefixes.Add("http://*:" + Cyber_Port + "/cyberwinsvr/");
                hl.Start();
                while (true)
                {
                    HttpListenerContext ctx = hl.GetContext();
                    ctx.Response.StatusCode = 200;
                    //ctx.Request.
                    string l = ctx.Request.QueryString["like"];
                    string m = ctx.Request.QueryString["m"];


                    

                  
                    using (StreamWriter w = new StreamWriter(ctx.Response.OutputStream, Encoding.UTF8))
                    {

                        string responseBody = cls_Cloud_Deployment_client.cyber_cmd(ctx.Request);
                        w.WriteLine(responseBody);
                        //w.WriteLine("hello2222刘7777" + System.Web.HttpUtility.UrlDecode(l, Encoding.ASCII) + "郭荣华第二：" + System.Web.HttpUtility.UrlDecode(ctx.Request.Url.ToString(), Encoding.ASCII) + "<br>mm==" + m);

                      
                        w.Flush();
                        w.Close();



                    }
                }
            }
        }
    }
}