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C#中使用Socket实现简单Web服务器

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

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：

C#中使用Socket实现简单Web服务器

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:\Users\jack\Desktop</span>";
static string defaultPage = "index.html,home.html";
    </span><span >static</span> <span >void</span> Main(<span >string</span><span >[] args)
    {
        webRoot </span>= <span >@"</span><span >C:\_jack\DevCode</span><span >"</span><span >;
        _socket.Bind(</span><span >new</span> IPEndPoint(IPAddress.Any, <span >8080</span><span >));
        _socket.Listen(</span><span >100</span><span >);
        _socket.BeginAccept(</span><span >new</span> AsyncCallback(OnAccept), _socket);  <span >//</span><span >开始接收来自浏览器的http请求（其实是socket连接请求）</span>
        writeLog(<span >"</span><span >Socket Web Server 已启动监听！</span><span >"</span> + Environment.NewLine + <span >"</span><span >  监听端口：</span><span >"</span> +<span > ((IPEndPoint)_socket.LocalEndPoint).Port);
        Console.ReadKey();
    }

    </span><span >///</span> <span >&lt;summary&gt;</span>
    <span >///</span><span > 接受处理http的请求
    </span><span >///</span> <span >&lt;/summary&gt;</span>
    <span >///</span> <span >&lt;param name="ar"&gt;&lt;/param&gt;</span>
    <span >static</span> <span >void</span><span > OnAccept(IAsyncResult ar)
    {
        </span><span >try</span><span >
        {
            Socket socket </span>= ar.AsyncState <span >as</span><span > Socket;
            Socket web_client </span>= socket.EndAccept(ar);  <span >//</span><span >接收到来自浏览器的代理socket
            </span><span >//</span><span >NO.1  并行处理http请求</span>
            socket.BeginAccept(<span >new</span> AsyncCallback(OnAccept), socket); <span >//</span><span >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）</span>

            <span >byte</span>[] recv_Buffer = <span >new</span> <span >byte</span>[<span >1024</span> * <span >640</span><span >];
            </span><span >int</span> recv_Count = web_client.Receive(recv_Buffer);  <span >//</span><span >接收浏览器的请求数据</span>
            <span >string</span> recv_request = Encoding.UTF8.GetString(recv_Buffer, <span >0</span><span >, recv_Count);
            writeLog(</span><span >"</span><span >Data Request : </span><span >"</span> + recv_request);  <span >//</span><span >将请求显示到界面

            </span><span >//</span><span >Resolve(recv_request, web_client);  </span><span >//</span><span >解析、路由、处理</span>

            <span >byte</span>[] cont =<span > pageHandle(RouteHandle(recv_request));
            sendPageContent(cont, web_client);


            </span><span >//</span><span >NO.2  串行处理http请求</span>


            }
catch (Exception ex)

{

writeLog("处理http请求时出现异常！" + Environment.NewLine + "\t" + ex.Message);

}

}

    </span><span >static</span> <span >void</span> sendPageContent(<span >byte</span><span >[] pageContent, Socket response)
    {

        </span><span >string</span> statusline = <span >"</span><span >HTTP/1.1 200 OK\r\n</span><span >"</span>;   <span >//</span><span >状态行</span>
        <span >byte</span>[] statusline_to_bytes =<span > Encoding.UTF8.GetBytes(statusline);

        </span><span >string</span> content =
        <span >"</span><span >&lt;html&gt;</span><span >"</span> +
            <span >"</span><span >&lt;head&gt;</span><span >"</span> +
                <span >"</span><span >&lt;title&gt;socket webServer  -- Login&lt;/title&gt;</span><span >"</span> +
            <span >"</span><span >&lt;/head&gt;</span><span >"</span> +
            <span >"</span><span >&lt;body&gt;</span><span >"</span> +
               <span >"</span><span >&lt;div text-align:center\"&gt;</span><span >"</span> +
                   <span >"</span><span >欢迎您！</span><span >"</span> + <span >""</span> + <span >"</span><span >,今天是 </span><span >"</span> + DateTime.Now.ToLongDateString() +
               <span >"</span><span >&lt;/div&gt;</span><span >"</span> +
            <span >"</span><span >&lt;/body&gt;</span><span >"</span> +
        <span >"</span><span >&lt;/html&gt;</span><span >"</span>;  <span >//</span><span >内容</span>


        <span >byte</span>[] content_to_bytes =<span > pageContent;

        </span><span >string</span> header = <span >string</span>.Format(<span >"</span><span >Content-Type:text/html;charset=UTF-8\r\nContent-Length:{0}\r\n</span><span >"</span><span >, content_to_bytes.Length);
        </span><span >byte</span>[] header_to_bytes = Encoding.UTF8.GetBytes(header);  <span >//</span><span >应答头</span>

        response.Send(statusline_to_bytes);  </span><span >//</span><span >发送状态行</span>
        response.Send(header_to_bytes);  <span >//</span><span >发送应答头</span>
        response.Send(<span >new</span> <span >byte</span>[] { (<span >byte</span>)<span >'</span><span >\r</span><span >'</span>, (<span >byte</span>)<span >'</span><span >\n</span><span >'</span> });  <span >//</span><span >发送空行</span>
        response.Send(content_to_bytes);  <span >//</span><span >发送正文（html）</span>

            response.Close();

    }

    </span><span >///</span> <span >&lt;summary&gt;</span>
    <span >///</span> 
    <span >///</span> <span >&lt;/summary&gt;</span>
    <span >///</span> <span >&lt;param name="request"&gt;&lt;/param&gt;</span>
    <span >///</span> <span >&lt;returns&gt;&lt;/returns&gt;</span>
    <span >static</span> <span >string</span> RouteHandle(<span >string</span><span > request)
    {
        </span><span >string</span> retRoute = <span >""</span><span >;
        </span><span >string</span>[] strs = request.Split(<span >new</span> <span >string</span>[] { <span >"</span><span >\r\n</span><span >"</span> }, StringSplitOptions.None);  <span >//</span><span >以“换行”作为切分标志</span>
        <span >if</span> (strs.Length &gt; <span >0</span>)  <span >//</span><span >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)</span>


            {
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 : "");

}

        </span><span >return</span><span > retRoute;

    }


    </span><span >///</span> <span >&lt;summary&gt;</span>
    <span >///</span><span > 按照HTTP协议格式,解析浏览器发送的请求字符串
    </span><span >///</span> <span >&lt;/summary&gt;</span>
    <span >///</span> <span >&lt;param name="strs"&gt;&lt;/param&gt;</span>
    <span >///</span> <span >&lt;returns&gt;&lt;/returns&gt;</span>
    <span >static</span> Dictionary&lt;<span >string</span>, <span >string</span>&gt; ParameterHandle(<span >string</span><span >[] strs)
    {
        Dictionary</span>&lt;<span >string</span>, <span >string</span>&gt; param = <span >new</span> Dictionary&lt;<span >string</span>, <span >string</span>&gt;<span >();

        </span><span >if</span> (strs.Length &gt; <span >0</span>)  <span >//</span><span >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)</span>


            {
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;

}

    </span><span >static</span> <span >byte</span>[] pageHandle(<span >string</span><span > pagePath)
    {
        </span><span >byte</span>[] pageContent = <span >null</span><span >;
        webRoot </span>= webRoot.TrimEnd(<span >'</span><span >/</span><span >'</span>, <span >'</span><span >\\</span><span >'</span><span >);
        pagePath </span>= pagePath.TrimEnd(<span >'</span><span >/</span><span >'</span>, <span >'</span><span >\\</span><span >'</span><span >);
        </span><span >if</span> (pagePath.Length==<span >0</span><span >)
        {
            </span><span >foreach</span> (<span >string</span> page <span >in</span> defaultPage.Split(<span >'</span><span >,</span><span >'</span><span >))
            {
                </span><span >if</span> (System.IO.File.Exists(webRoot +<span > page))
                {
                    pagePath </span>=<span > page;
                    </span><span >break</span><span >;
                }
            }
        }
        </span><span >if</span> (System.IO.File.Exists(webRoot +<span > pagePath))
            pageContent </span>= System.IO.File.ReadAllBytes(webRoot +<span > pagePath);
        </span><span >if</span> (pageContent == <span >null</span><span >)
        {

            </span><span >string</span> content =<span > notExistPage();
            pageContent </span>=<span > Encoding.UTF8.GetBytes(content);

        }
        </span><span >return</span><span > pageContent;
    }


    </span><span >static</span> <span >void</span> writeLog(<span >string</span><span > msg)
    {
        Console.WriteLine(</span><span >"</span>  <span >"</span> +<span > msg);
    }


    </span><span >static</span> <span >string</span><span > notExistPage()
    {
        </span><span >string</span> cont = <span >@"</span><span >&lt;!DOCTYPE HTML&gt;


<html>

&lt;head&gt;
    &lt;link rel='stylesheet' type='text/css' href='NewErrorPageTemplate.css' &gt;

    &lt;meta http-equiv='Content-Type' content='text/html; charset=UTF-8'&gt;
    &lt;title&gt;This page can&amp;rsquo;t be displayed&lt;/title&gt;

    &lt;script src='errorPageStrings.js' language='javascript' type='text/javascript'&gt;
    &lt;/script&gt;
    &lt;script src='httpErrorPagesScripts.js' language='javascript' type='text/javascript'&gt;
    &lt;/script&gt;
&lt;/head&gt;

&lt;body onLoad='javascript:getInfo();'&gt;
    &lt;div  class='mainContent'&gt;
        &lt;div  class='title'&gt;This page can&amp;rsquo;t be displayed&lt;/div&gt;
        &lt;div class='taskSection' &gt;
            &lt;ul  class='tasks'&gt;
                &lt;li &gt;Make sure the web address &lt;span  class='webpageURL'&gt;&lt;/span&gt;is correct.&lt;/li&gt;
                &lt;li &gt;Look for the page with your search engine.&lt;/li&gt;
                &lt;li &gt;Refresh the page in a few minutes.&lt;/li&gt;
            &lt;/ul&gt;
            &lt;ul  class='tasks' &gt;
                &lt;li &gt;Check that all network cables are plugged in.&lt;/li&gt;
                &lt;li &gt;Verify that airplane mode is turned off.&lt;/li&gt;
                &lt;li &gt;Make sure your wireless switch is turned on.&lt;/li&gt;
                &lt;li &gt;See if you can connect to mobile broadband.&lt;/li&gt;
                &lt;li &gt;Restart your router.&lt;/li&gt;
            &lt;/ul&gt;
        &lt;/div&gt;
        &lt;div&gt;&lt;button  class='diagnoseButton' onclick='javascript:diagnoseConnectionAndRefresh(); return false;'&gt;Fix connection problems&lt;/button&gt;&lt;/div&gt;
    &lt;/div&gt;
&lt;/body&gt;


</html>";

        </span><span >return</span><span > cont;
    }

}


}
C#中使用Socket实现简单Web服务器
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：
自己写的Web服务器
自己写的Web服务器(续)
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: https://files.cnblogs.com/wunaozai/WebServer.zip
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：
C#中使用Socket实现简单Web服务器
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:\Users\jack\Desktop</span>";
static string defaultPage = "index.html,home.html";
    </span><span >static</span> <span >void</span> Main(<span >string</span><span >[] args)
    {
        webRoot </span>= <span >@"</span><span >C:\_jack\DevCode</span><span >"</span><span >;
        _socket.Bind(</span><span >new</span> IPEndPoint(IPAddress.Any, <span >8080</span><span >));
        _socket.Listen(</span><span >100</span><span >);
        _socket.BeginAccept(</span><span >new</span> AsyncCallback(OnAccept), _socket);  <span >//</span><span >开始接收来自浏览器的http请求（其实是socket连接请求）</span>
        writeLog(<span >"</span><span >Socket Web Server 已启动监听！</span><span >"</span> + Environment.NewLine + <span >"</span><span >  监听端口：</span><span >"</span> +<span > ((IPEndPoint)_socket.LocalEndPoint).Port);
        Console.ReadKey();
    }

    </span><span >///</span> <span >&lt;summary&gt;</span>
    <span >///</span><span > 接受处理http的请求
    </span><span >///</span> <span >&lt;/summary&gt;</span>
    <span >///</span> <span >&lt;param name="ar"&gt;&lt;/param&gt;</span>
    <span >static</span> <span >void</span><span > OnAccept(IAsyncResult ar)
    {
        </span><span >try</span><span >
        {
            Socket socket </span>= ar.AsyncState <span >as</span><span > Socket;
            Socket web_client </span>= socket.EndAccept(ar);  <span >//</span><span >接收到来自浏览器的代理socket
            </span><span >//</span><span >NO.1  并行处理http请求</span>
            socket.BeginAccept(<span >new</span> AsyncCallback(OnAccept), socket); <span >//</span><span >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）</span>

            <span >byte</span>[] recv_Buffer = <span >new</span> <span >byte</span>[<span >1024</span> * <span >640</span><span >];
            </span><span >int</span> recv_Count = web_client.Receive(recv_Buffer);  <span >//</span><span >接收浏览器的请求数据</span>
            <span >string</span> recv_request = Encoding.UTF8.GetString(recv_Buffer, <span >0</span><span >, recv_Count);
            writeLog(</span><span >"</span><span >Data Request : </span><span >"</span> + recv_request);  <span >//</span><span >将请求显示到界面

            </span><span >//</span><span >Resolve(recv_request, web_client);  </span><span >//</span><span >解析、路由、处理</span>

            <span >byte</span>[] cont =<span > pageHandle(RouteHandle(recv_request));
            sendPageContent(cont, web_client);


            </span><span >//</span><span >NO.2  串行处理http请求</span>


            }
catch (Exception ex)

{

writeLog("处理http请求时出现异常！" + Environment.NewLine + "\t" + ex.Message);

}

}

    </span><span >static</span> <span >void</span> sendPageContent(<span >byte</span><span >[] pageContent, Socket response)
    {

        </span><span >string</span> statusline = <span >"</span><span >HTTP/1.1 200 OK\r\n</span><span >"</span>;   <span >//</span><span >状态行</span>
        <span >byte</span>[] statusline_to_bytes =<span > Encoding.UTF8.GetBytes(statusline);

        </span><span >string</span> content =
        <span >"</span><span >&lt;html&gt;</span><span >"</span> +
            <span >"</span><span >&lt;head&gt;</span><span >"</span> +
                <span >"</span><span >&lt;title&gt;socket webServer  -- Login&lt;/title&gt;</span><span >"</span> +
            <span >"</span><span >&lt;/head&gt;</span><span >"</span> +
            <span >"</span><span >&lt;body&gt;</span><span >"</span> +
               <span >"</span><span >&lt;div text-align:center\"&gt;</span><span >"</span> +
                   <span >"</span><span >欢迎您！</span><span >"</span> + <span >""</span> + <span >"</span><span >,今天是 </span><span >"</span> + DateTime.Now.ToLongDateString() +
               <span >"</span><span >&lt;/div&gt;</span><span >"</span> +
            <span >"</span><span >&lt;/body&gt;</span><span >"</span> +
        <span >"</span><span >&lt;/html&gt;</span><span >"</span>;  <span >//</span><span >内容</span>


        <span >byte</span>[] content_to_bytes =<span > pageContent;

        </span><span >string</span> header = <span >string</span>.Format(<span >"</span><span >Content-Type:text/html;charset=UTF-8\r\nContent-Length:{0}\r\n</span><span >"</span><span >, content_to_bytes.Length);
        </span><span >byte</span>[] header_to_bytes = Encoding.UTF8.GetBytes(header);  <span >//</span><span >应答头</span>

        response.Send(statusline_to_bytes);  </span><span >//</span><span >发送状态行</span>
        response.Send(header_to_bytes);  <span >//</span><span >发送应答头</span>
        response.Send(<span >new</span> <span >byte</span>[] { (<span >byte</span>)<span >'</span><span >\r</span><span >'</span>, (<span >byte</span>)<span >'</span><span >\n</span><span >'</span> });  <span >//</span><span >发送空行</span>
        response.Send(content_to_bytes);  <span >//</span><span >发送正文（html）</span>

            response.Close();

    }

    </span><span >///</span> <span >&lt;summary&gt;</span>
    <span >///</span> 
    <span >///</span> <span >&lt;/summary&gt;</span>
    <span >///</span> <span >&lt;param name="request"&gt;&lt;/param&gt;</span>
    <span >///</span> <span >&lt;returns&gt;&lt;/returns&gt;</span>
    <span >static</span> <span >string</span> RouteHandle(<span >string</span><span > request)
    {
        </span><span >string</span> retRoute = <span >""</span><span >;
        </span><span >string</span>[] strs = request.Split(<span >new</span> <span >string</span>[] { <span >"</span><span >\r\n</span><span >"</span> }, StringSplitOptions.None);  <span >//</span><span >以“换行”作为切分标志</span>
        <span >if</span> (strs.Length &gt; <span >0</span>)  <span >//</span><span >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)</span>


            {
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 : "");

}

        </span><span >return</span><span > retRoute;

    }


    </span><span >///</span> <span >&lt;summary&gt;</span>
    <span >///</span><span > 按照HTTP协议格式,解析浏览器发送的请求字符串
    </span><span >///</span> <span >&lt;/summary&gt;</span>
    <span >///</span> <span >&lt;param name="strs"&gt;&lt;/param&gt;</span>
    <span >///</span> <span >&lt;returns&gt;&lt;/returns&gt;</span>
    <span >static</span> Dictionary&lt;<span >string</span>, <span >string</span>&gt; ParameterHandle(<span >string</span><span >[] strs)
    {
        Dictionary</span>&lt;<span >string</span>, <span >string</span>&gt; param = <span >new</span> Dictionary&lt;<span >string</span>, <span >string</span>&gt;<span >();

        </span><span >if</span> (strs.Length &gt; <span >0</span>)  <span >//</span><span >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)</span>


            {
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;

}

    </span><span >static</span> <span >byte</span>[] pageHandle(<span >string</span><span > pagePath)
    {
        </span><span >byte</span>[] pageContent = <span >null</span><span >;
        webRoot </span>= webRoot.TrimEnd(<span >'</span><span >/</span><span >'</span>, <span >'</span><span >\\</span><span >'</span><span >);
        pagePath </span>= pagePath.TrimEnd(<span >'</span><span >/</span><span >'</span>, <span >'</span><span >\\</span><span >'</span><span >);
        </span><span >if</span> (pagePath.Length==<span >0</span><span >)
        {
            </span><span >foreach</span> (<span >string</span> page <span >in</span> defaultPage.Split(<span >'</span><span >,</span><span >'</span><span >))
            {
                </span><span >if</span> (System.IO.File.Exists(webRoot +<span > page))
                {
                    pagePath </span>=<span > page;
                    </span><span >break</span><span >;
                }
            }
        }
        </span><span >if</span> (System.IO.File.Exists(webRoot +<span > pagePath))
            pageContent </span>= System.IO.File.ReadAllBytes(webRoot +<span > pagePath);
        </span><span >if</span> (pageContent == <span >null</span><span >)
        {

            </span><span >string</span> content =<span > notExistPage();
            pageContent </span>=<span > Encoding.UTF8.GetBytes(content);

        }
        </span><span >return</span><span > pageContent;
    }


    </span><span >static</span> <span >void</span> writeLog(<span >string</span><span > msg)
    {
        Console.WriteLine(</span><span >"</span>  <span >"</span> +<span > msg);
    }


    </span><span >static</span> <span >string</span><span > notExistPage()
    {
        </span><span >string</span> cont = <span >@"</span><span >&lt;!DOCTYPE HTML&gt;


<html>

&lt;head&gt;
    &lt;link rel='stylesheet' type='text/css' href='NewErrorPageTemplate.css' &gt;

    &lt;meta http-equiv='Content-Type' content='text/html; charset=UTF-8'&gt;
    &lt;title&gt;This page can&amp;rsquo;t be displayed&lt;/title&gt;

    &lt;script src='errorPageStrings.js' language='javascript' type='text/javascript'&gt;
    &lt;/script&gt;
    &lt;script src='httpErrorPagesScripts.js' language='javascript' type='text/javascript'&gt;
    &lt;/script&gt;
&lt;/head&gt;

&lt;body onLoad='javascript:getInfo();'&gt;
    &lt;div  class='mainContent'&gt;
        &lt;div  class='title'&gt;This page can&amp;rsquo;t be displayed&lt;/div&gt;
        &lt;div class='taskSection' &gt;
            &lt;ul  class='tasks'&gt;
                &lt;li &gt;Make sure the web address &lt;span  class='webpageURL'&gt;&lt;/span&gt;is correct.&lt;/li&gt;
                &lt;li &gt;Look for the page with your search engine.&lt;/li&gt;
                &lt;li &gt;Refresh the page in a few minutes.&lt;/li&gt;
            &lt;/ul&gt;
            &lt;ul  class='tasks' &gt;
                &lt;li &gt;Check that all network cables are plugged in.&lt;/li&gt;
                &lt;li &gt;Verify that airplane mode is turned off.&lt;/li&gt;
                &lt;li &gt;Make sure your wireless switch is turned on.&lt;/li&gt;
                &lt;li &gt;See if you can connect to mobile broadband.&lt;/li&gt;
                &lt;li &gt;Restart your router.&lt;/li&gt;
            &lt;/ul&gt;
        &lt;/div&gt;
        &lt;div&gt;&lt;button  class='diagnoseButton' onclick='javascript:diagnoseConnectionAndRefresh(); return false;'&gt;Fix connection problems&lt;/button&gt;&lt;/div&gt;
    &lt;/div&gt;
&lt;/body&gt;


</html>";

        </span><span >return</span><span > cont;
    }

}


}
C#中使用Socket实现简单Web服务器
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：
自己写的Web服务器
自己写的Web服务器(续)
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: https://files.cnblogs.com/wunaozai/WebServer.zip
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