Socket,好像也挺简单,可是,真够烦

虽然思路简单,可是实现起来可真麻烦,因为要用到好多类来实现DNS解析,IP辨别,数据格式变换,解码等,比较烦呢

用到了

System.Text.Encoding
System.Net.Dns
System.Net.Sockets.Socket
System.Net.IPHostEntry
System.Net.IPAddress
System.Net.IPEndPoint
..

是不是很麻烦?下面的代码运用Socket建立加接,然后朝目标计算机的指定端口发送GET请求,然后将请求返回的头256数据返回

using System;
using System.Net.Sockets;
using System.Net;
using System.Text;

namespace MyControl
{
    /// <summary>
    /// SocketTest 的摘要说明。
    /// </summary>
    public class SocketTest
    {
        public SocketTest()
        {
            //
            // TODO: 在此处添加构造函数逻辑
            //            
        }
        /// <summary>
        /// 连接SOCKET
        /// </summary>
        /// <param name="Server">服务器名</param>
        /// <param name="Port">端口</param>
        /// <returns></returns>
        private Socket Connection(string Server, int Port)
        {
            Socket HttpSocket = null;
            IPHostEntry HostIp = null;
            HostIp = Dns.Resolve(Server);
            foreach (IPAddress TempIp in HostIp.AddressList)
            {
                IPEndPoint Iep = new IPEndPoint(TempIp, Port);
                Socket TempSocket = new Socket(Iep.AddressFamily, SocketType.Stream, ProtocolType.Tcp);
                TempSocket.Connect(Iep);
                if (TempSocket.Connected)
                {
                    HttpSocket = TempSocket;
                    break;
                }
                else
                {
                    continue;
                }
            }
            return (HttpSocket);
        }

        public string GetHomePageByeSocket(string Server, int Port)
        {
            string strHomePage = null;
            Encoding AscEncode = Encoding.ASCII;
            string strGetString = "GET / HTTP/1.1\r\nHost: " + Server + "\r\nConnection: Close\r\n\r\n";
            Byte[] BtGetByte = AscEncode.GetBytes(strGetString);
            Byte[] BtRevByte = new Byte[256];

            Socket HttpSocket = Connection(Server, Port);
            if (HttpSocket == null)
            {
                return ("Connection Fail!");
            }
            HttpSocket.Send(BtGetByte, BtGetByte.Length, SocketFlags.None);

            Int32 IntRevByte = HttpSocket.Receive(BtRevByte, BtRevByte.Length, SocketFlags.None);

            strHomePage += AscEncode.GetString(BtRevByte, 0, IntRevByte);
            return (strHomePage);
        }
    }
}