C#socketに基づいてhttpリクエストをシミュレートする方法
3614 ワード
この例では、C#がsocketに基づいてhttpリクエストをシミュレートする方法について説明します.皆さんの参考にしてください.具体的な実現方法は以下の通りである.
本稿で述べたことが皆さんのC#プログラム設計に役立つことを願っています.
using System;
using System.Collections.Generic;
using System.Linq;
using System.Net;
using System.Net.Sockets;
using System.Text;
using System.Threading.Tasks;
class HttpHelper
{
#region socket
private static Socket ConnectSocket(string server, int port)
{
Socket s = null;
IPHostEntry hostEntry = null;
// Get host related information.
hostEntry = Dns.GetHostEntry(server);
// Loop through the AddressList to obtain the supported AddressFamily. This is to avoid
// an exception that occurs when the host IP Address is not compatible with the address family
// (typical in the IPv6 case).
foreach (IPAddress address in hostEntry.AddressList)
{
IPEndPoint ipe = new IPEndPoint(address, port);
Socket tempSocket =
new Socket(ipe.AddressFamily, SocketType.Stream, ProtocolType.Tcp);
tempSocket.Connect(ipe);
if (tempSocket.Connected)
{
s = tempSocket;
break;
}
else
{
continue;
}
}
return s;
}
#endregion
#region request http , ,server ip ,port http 80
public static string SocketSendReceive(string request, string server, int port)
{
try
{
Byte[] bytesSent = Encoding.ASCII.GetBytes(request);
Byte[] bytesReceived = new Byte[655350];
//
Socket s = ConnectSocket(server, port);
if (s == null)
return ("Connection failed");
// .
s.Send(bytesSent, bytesSent.Length, 0);
// Receive the server home page content.
int bytes = 0;
string page = "Default HTML page on " + server + ":\r
";
// .
do
{
bytes = s.Receive(bytesReceived, bytesReceived.Length, 0);
page = page + Encoding.UTF8.GetString(bytesReceived, 0, bytes);
}
while (bytes > 0);
return page;
}
catch
{
return string.Empty;
}
}
#endregion
}
using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Reflection;
class Program
{
public static string HeadlerInit() {
StringBuilder sb = new StringBuilder();
sb.AppendLine("GET http://www.baidu.com/ HTTP/1.1");
sb.AppendLine("Host: www.baidu.com");
sb.AppendLine("Connection: keep-alive");
sb.AppendLine("Accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,*/*;q=0.8");
sb.AppendLine("User-Agent: Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.90 Safari/537.36");
sb.AppendLine("Accept-Encoding:deflate, sdch");
sb.AppendLine("Accept-Language: zh-CN,zh;q=0.8");
sb.AppendLine("\r
");
//
return sb.ToString();
}
static void Main(string[] args)
{
string getStrs=HeadlerInit();
string getHtml = HttpHelper.SocketSendReceive(getStrs, "www.baidu.com", 80);
Console.WriteLine(getHtml);
}
}
本稿で述べたことが皆さんのC#プログラム設計に役立つことを願っています.