• C#中使用Socket实现简单Web服务器


    最近有个web的小项目,但公司的电脑无法安装IIS,所以就想自己来实现个Web server服务器,原本想了下,也就是socket处理http请求,于是就在博客园中搜索了“socket实现web server”,结果还真搜索到一些文章,于是从中找了几个做参考,如下:

    C#中使用Socket实现简单Web服务器

    C#中使用Socket模拟请求Web服务器过程

    C#中自己动手创建一个Web Server(非Socket实现)

    其他的这里就不一一列出了,感兴趣的可以自己搜索看看。

    所以我根据他们的代码,然后自己在修改符合自己使用的情况,初次版本就出来了,代码如下:

    using System;
    using System.Collections.Generic;
    using System.Linq;
    using System.Text;
    using System.Net;
    using System.Net.Sockets;
    
    namespace socket_webServer
    {
        class Program
        {
            static Socket _socket = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);  //侦听socket
            static string webRoot = @"C:UsersjackDesktop";
            static string defaultPage = "index.html,home.html";
    
            static void Main(string[] args)
            {
                webRoot = @"C:\_jackDevCode";
                _socket.Bind(new IPEndPoint(IPAddress.Any, 8080));
                _socket.Listen(100);
                _socket.BeginAccept(new AsyncCallback(OnAccept), _socket);  //开始接收来自浏览器的http请求(其实是socket连接请求)
                writeLog("Socket Web Server 已启动监听!" + Environment.NewLine + "  监听端口:" + ((IPEndPoint)_socket.LocalEndPoint).Port);
                Console.ReadKey();
            }
    
            /// <summary>
            /// 接受处理http的请求
            /// </summary>
            /// <param name="ar"></param>
            static void OnAccept(IAsyncResult ar)
            {
                try
                {
                    Socket socket = ar.AsyncState as Socket;
                    Socket web_client = socket.EndAccept(ar);  //接收到来自浏览器的代理socket
                    //NO.1  并行处理http请求
                    socket.BeginAccept(new AsyncCallback(OnAccept), socket); //开始下一次http请求接收   (此行代码放在NO.2处时,就是串行处理http请求,前一次处理过程会阻塞下一次请求处理)
    
                    byte[] recv_Buffer = new byte[1024 * 640];
                    int recv_Count = web_client.Receive(recv_Buffer);  //接收浏览器的请求数据
                    string recv_request = Encoding.UTF8.GetString(recv_Buffer, 0, recv_Count);
                    writeLog("Data Request : " + recv_request);  //将请求显示到界面
    
                    //Resolve(recv_request, web_client);  //解析、路由、处理
    
                    byte[] cont = pageHandle(RouteHandle(recv_request));
                    sendPageContent(cont, web_client);
    
    
                    //NO.2  串行处理http请求
                }
                catch (Exception ex)
                {
                    writeLog("处理http请求时出现异常!" + Environment.NewLine + "	" + ex.Message);
                }
            }
    
    
    
            static void sendPageContent(byte[] pageContent, Socket response)
            {
    
                string statusline = "HTTP/1.1 200 OK
    ";   //状态行
                byte[] statusline_to_bytes = Encoding.UTF8.GetBytes(statusline);
    
                string content =
                "<html>" +
                    "<head>" +
                        "<title>socket webServer  -- Login</title>" +
                    "</head>" +
                    "<body>" +
                       "<div style="text-align:center">" +
                           "欢迎您!" + "" + ",今天是 " + DateTime.Now.ToLongDateString() +
                       "</div>" +
                    "</body>" +
                "</html>";  //内容
    
    
                byte[] content_to_bytes = pageContent;
    
                string header = string.Format("Content-Type:text/html;charset=UTF-8
    Content-Length:{0}
    ", content_to_bytes.Length);
                byte[] header_to_bytes = Encoding.UTF8.GetBytes(header);  //应答头
                
    
                response.Send(statusline_to_bytes);  //发送状态行
                response.Send(header_to_bytes);  //发送应答头
                response.Send(new byte[] { (byte)'
    ', (byte)'
    ' });  //发送空行
                response.Send(content_to_bytes);  //发送正文(html)
    
                response.Close();
    
            }
    
            /// <summary>
            /// 
            /// </summary>
            /// <param name="request"></param>
            /// <returns></returns>
            static string RouteHandle(string request)
            {
                string retRoute = "";
                string[] strs = request.Split(new string[] { "
    " }, StringSplitOptions.None);  //以“换行”作为切分标志
                if (strs.Length > 0)  //解析出请求路径、post传递的参数(get方式传递参数直接从url中解析)
                {
                    string[] items = strs[0].Split(' ');  //items[1]表示请求url中的路径部分(不含主机部分)
                    string pageName = items[1];
                    string post_data = strs[strs.Length - 1]; //最后一项
                    //Dictionary<string, string> dict = ParameterHandle(strs);
    
                    retRoute = pageName + (post_data.Length > 0 ? "?" + post_data : "");
                }
    
                return retRoute;
    
            }
    
    
            /// <summary>
            /// 按照HTTP协议格式,解析浏览器发送的请求字符串
            /// </summary>
            /// <param name="strs"></param>
            /// <returns></returns>
            static Dictionary<string, string> ParameterHandle(string[] strs)
            {
                Dictionary<string, string> param = new Dictionary<string, string>();
    
                if (strs.Length > 0)  //解析出请求路径、post传递的参数(get方式传递参数直接从url中解析)
                {
                    if (strs.Contains(""))  //包含空行  说明存在post数据
                    {
                        string post_data = strs[strs.Length - 1]; //最后一项
                        if (post_data != "")
                        {
                            string[] post_datas = post_data.Split('&');
                            foreach (string s in post_datas)
                            {
                                param.Add(s.Split('=')[0], s.Split('=')[1]);
                            }
                        }
                    }
                }
                return param;
            }
    
            static byte[] pageHandle(string pagePath)
            {
                byte[] pageContent = null;
                webRoot = webRoot.TrimEnd('/', '\');
                pagePath = pagePath.TrimEnd('/', '\');
                if (pagePath.Length==0)
                {
                    foreach (string page in defaultPage.Split(','))
                    {
                        if (System.IO.File.Exists(webRoot + page))
                        {
                            pagePath = page;
                            break;
                        }
                    }
                }
                if (System.IO.File.Exists(webRoot + pagePath))
                    pageContent = System.IO.File.ReadAllBytes(webRoot + pagePath);
                if (pageContent == null)
                {
    
                    string content = notExistPage();
                    pageContent = Encoding.UTF8.GetBytes(content);
    
                }
                return pageContent;
            }
    
    
            static void writeLog(string msg)
            {
                Console.WriteLine("  " + msg);
            }
    
    
            static string notExistPage()
            {
                string cont = @"<!DOCTYPE HTML>
    <html>
    
        <head>
            <link rel='stylesheet' type='text/css' href='NewErrorPageTemplate.css' >
    
            <meta http-equiv='Content-Type' content='text/html; charset=UTF-8'>
            <title>This page can&rsquo;t be displayed</title>
    
            <script src='errorPageStrings.js' language='javascript' type='text/javascript'>
            </script>
            <script src='httpErrorPagesScripts.js' language='javascript' type='text/javascript'>
            </script>
        </head>
    
        <body onLoad='javascript:getInfo();'>
            <div id='contentContainer' class='mainContent'>
                <div id='mainTitle' class='title'>This page can&rsquo;t be displayed</div>
                <div class='taskSection' id='taskSection'>
                    <ul id='cantDisplayTasks' class='tasks'>
                        <li id='task1-1'>Make sure the web address <span id='webpage' class='webpageURL'></span>is correct.</li>
                        <li id='task1-2'>Look for the page with your search engine.</li>
                        <li id='task1-3'>Refresh the page in a few minutes.</li>
                    </ul>
                    <ul id='notConnectedTasks' class='tasks' style='display:none'>
                        <li id='task2-1'>Check that all network cables are plugged in.</li>
                        <li id='task2-2'>Verify that airplane mode is turned off.</li>
                        <li id='task2-3'>Make sure your wireless switch is turned on.</li>
                        <li id='task2-4'>See if you can connect to mobile broadband.</li>
                        <li id='task2-5'>Restart your router.</li>
                    </ul>
                </div>
                <div><button id='diagnose' class='diagnoseButton' onclick='javascript:diagnoseConnectionAndRefresh(); return false;'>Fix connection problems</button></div>
            </div>
        </body>
    </html>";
    
                return cont;
            }
    
        }
    }

    这个web server的雏形就出来了,以后有需要的功能在慢慢往上添加吧

    参考文章:

     

    Socket网络编程--简单Web服务器各章节传送门

        Socket网络编程--简单Web服务器(1)  http://www.cnblogs.com/wunaozai/p/3926033.html
        Socket网络编程--简单Web服务器(2)  http://www.cnblogs.com/wunaozai/p/3936295.html
        Socket网络编程--简单Web服务器(3)  http://www.cnblogs.com/wunaozai/p/3943952.html
        Socket网络编程--简单Web服务器(4)  http://www.cnblogs.com/wunaozai/p/3945218.html
        Socket网络编程--简单Web服务器(5)  http://www.cnblogs.com/wunaozai/p/3946486.html
        Socket网络编程--简单Web服务器(6)  http://www.cnblogs.com/wunaozai/p/3949324.html
        源码下载: http://files.cnblogs.com/wunaozai/WebServer.zip

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  • 原文地址:https://www.cnblogs.com/mq0036/p/6656888.html
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