C#建立最简单的web服务，无需IIS

软件架构师何志丹

本程序仅仅是入门级程序。所以不考虑

1。多线程。

2，安全性。

3，不考虑端点下载文件。

4，Keep-Alive。

5，不考虑head。

6,为了简洁，删掉了catch的内容。



exe的祖父目录必须有wwwroot目录，且目录有index.htm，内容不限。　

开发环境： WinXP+VS2010C#



一。新建一个项目TestWeb。项目类型：Windows窗体应用程序。

二。新建类RequestProcessor。

 using System;

using System.IO;

using System.Net;

using System.Net.Sockets;

using System.Text;

using System.Threading;

using System.Diagnostics;



namespace TestWeb

{

    class RequestProcessor

    {

        public bool ParseRequestAndProcess(string[] RequestLines)//解析内容

        {

            for (int i = 0; i < RequestLines.Length; i++)

                System.Diagnostics.Trace.Write(RequestLines[i]);



            char[] sp = new Char[1] { ' ' };

            string[] strs = RequestLines[0].Split(sp);

            if (strs[0] == "GET")

            {

                Send(strs[1], 0, 0);

            }



            return false;

        }



        void Send(string filename, long start, long length)//发送文件（文件头和文件）

        {

            string strFileName = GetPathFileName(filename);

            FileStream fs = null;

            try

            {

                fs = new FileStream(strFileName, FileMode.Open, FileAccess.Read, FileShare.ReadWrite);



            }

            catch (IOException)// FileNotFoundException)

            {//不能将 e.Message,发给浏览器，否则会有安全隐患的

                SendHeadrAndStr("打开文件" + filename + "失败。

");

                return;

            }



            if (length == 0)

                length = fs.Length - start;



            SendHeader("text/html", (fs.Length == length), start, length);

            sendContent(fs, start, length);

        }



        public void SendHeadrAndStr(String str)//直接将str的内容发给html

        {

            byte[] sendchars = Encoding.Default.GetBytes((str).ToCharArray());

            SendHeader("text/html", true, 0, sendchars.Length);

            SendStr(Encoding.Default, str);

        }



        private void SendHeader(string fileType, bool bAll, long start, long length)//发送文件头

        {

            try

            {

                Encoding coding = Encoding.Default;

                string strSend;

                string strState = (bAll) ?

"HTTP/1.1 200 OK" : "HTTP/1.1 206 Partial Content";

                SendStr(coding, strState + "\r\n");

                SendStr(coding, "Date: \r\n");

                SendStr(coding, "Server: httpsrv/1.0\r\n");

                SendStr(coding, "MIME-Version: 1.0\r\n");

                SendStr(coding, "Content-Type: " + fileType + "\r\n");





                strSend = "Content-Length: " + length.ToString();

                SendStr(coding, strSend + "\r\n");



                //发送一个空行

                SendStr(coding, "\r\n");

            }

            catch (ArgumentException)//the request is WRONG

            {





            }



        }



        private void sendContent(FileStream fs, long start, long length)//发生文件内容

        {

            try

            {



                //报文头发送完成，開始发送正文

                const int SOCKETWINDOWSIZE = 8192;

                long r = SOCKETWINDOWSIZE;

                int rd = 0;

                Byte[] senddatas = new Byte[SOCKETWINDOWSIZE];

                fs.Seek(start, SeekOrigin.Begin);

                do

                {

                    r = start + length - fs.Position;

                    //fs.BeginRead(s,s,s,s,d) 以后使用的版本号。用以提高读取的效率                

                    if (r >= SOCKETWINDOWSIZE)

                        rd = fs.Read(senddatas, 0, SOCKETWINDOWSIZE);

                    else

                        rd = fs.Read(senddatas, 0, (int)r);

                    mSockSendData.Send(senddatas, 0, rd, SocketFlags.None);

                } while (fs.Position != start + length);



            }

            catch (SocketException e)

            {

                throw e;

            }

            catch (IOException e)

            {

                throw e;

            }

        }







        public Socket mSockSendData;//Notice: get from ClientSocketThread.s











        private string GetPathFileName(string filename)

        {

            const string strDefaultPage = "index.htm";

            const string strWWWRoot = "..\\..\\wwwroot\\";

            string strFileName = String.Copy(filename);

            if ("/" == strFileName)

                strFileName = strDefaultPage;

            return System.AppDomain.CurrentDomain.BaseDirectory + strWWWRoot + strFileName;

        }



        private void SendStr(Encoding coding, string strSend)//发送一个字符串

        {

            Byte[] sendchars = new Byte[512];

            sendchars = coding.GetBytes((strSend).ToCharArray());

            mSockSendData.Send(sendchars, 0, sendchars.Length, SocketFlags.None);

        }

    }

}



三，新建类ClientSocketThread。

using System;

using System.Net;

using System.Net.Sockets;

using System.Text;

using System.Threading;



namespace TestWeb

{

    class ClientSocketThread

    {

        public TcpListener tcpl;//Notice: get from SrvMain.tcpl

        private static Encoding ASCII = Encoding.ASCII;



        public void HandleThread()

        {

            Thread currentThread = Thread.CurrentThread;

            try

            {



                Socket s = tcpl.AcceptSocket();





                RequestProcessor aRequestProcessor = new RequestProcessor(); //Notice:

                aRequestProcessor.mSockSendData = s;//Notice: so that the processor can work





                const int BUFFERSIZE = 4096;//that's enough???

Byte[] readclientchar = new Byte[BUFFERSIZE];

                char[] sps = new Char[2] { '\r', '\n' };

                string[] RequestLines = new string[32];



                do

                {

                    //use BUFFERSIZE contral the receive data size to avoid the BufferOverflow attack

                    int rc = s.Receive(readclientchar, 0, BUFFERSIZE, SocketFlags.None);



                    string strReceive = ASCII.GetString(readclientchar, 0, rc);



                    RequestLines = strReceive.Split(sps);





                } while (aRequestProcessor.ParseRequestAndProcess(RequestLines));



                s.Close();

            }

            catch (SocketException)

            {



            }

        }





    }

}





四。主对话框中添加button，按键的对应函数加例如以下代码。

using System;

using System.Collections.Generic;

using System.ComponentModel;

using System.Data;

using System.Drawing;

using System.Linq;

using System.Text;

using System.Windows.Forms;



using System.IO;

using System.Net;

using System.Net.Sockets;

using System.Threading;



namespace TestWeb

{

    public partial class Form1 : Form

    {

        public Form1()

        {

            InitializeComponent();

        }



        private void button1_Click(object sender, EventArgs e)

        {

              try

            {

                //启动监听程序                

                TcpListener tcpl;

                IPAddress LocalIP = Dns.Resolve("localhost").AddressList[0];

                tcpl = new TcpListener(LocalIP, 80); // listen on port 80

                tcpl.Start();

                         



               // int ThreadID = 0;

                while (true)

                {

                    while (!tcpl.Pending())

                    {

                        Thread.Sleep(100);

                    }



                    //启动接受线程

                    ClientSocketThread myThreadHandler = new ClientSocketThread();

                    myThreadHandler.tcpl = tcpl;//Notice: dont forget do this

                    ThreadStart myThreadStart = new ThreadStart(myThreadHandler.HandleThread);

                    Thread myWorkerThread = new Thread(myThreadStart);      

                    myWorkerThread.Start();

                }

            }

            catch (SocketException )

            {

           

            }

            catch (FormatException)

            {

               

            }

            catch (Exception )

            {

               

            }

            //  Console.Read();

       

        }

    }

}

五，启动TestWeb.exe，并单击主对话框上的button。在浏览器中输入：http://127.0.0.1/ 或http://127.0.0.1:80。

源代码下载：

http://download.csdn.net/detail/he_zhidan/8884733