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cscの作法 その321

Last updated at Posted at 2023-05-29

概要

cscの作法、調べてみた。
サーバーサイドc#なwebserverを発明したので紹介する。

  • ポート40002
  • アドレスlocalhost
  • ブラウザからアクセス
  • サーバーサイドc#
  • じゃんけんを返す

写真

image.png

サンプルコード



using System;
using System.Net;
using System.Text;
using System.Globalization;

namespace App
{
	class Program {
		static void Main(string[] args) {
			try
			{
				HttpListener listener = new HttpListener();
				listener.Prefixes.Clear();
				listener.Prefixes.Add(@"http://localhost:40002/");
				listener.Start();
				Console.WriteLine("start");
				while (true)
				{
					HttpListenerContext context = listener.GetContext();
					HttpListenerRequest request = context.Request;
					HttpListenerResponse response = context.Response;
					Console.WriteLine(request.RawUrl);
					if (request.RawUrl.IndexOf("favicon") == -1)
					{
						string a = request.RawUrl.Replace("/index.html?q=", "");
						string b = "2";
						string name = "012";
						Random random = new Random();
						StringInfo nameInfo = new StringInfo(name);
						int newNameIndex = random.Next(nameInfo.LengthInTextElements);
						b = nameInfo.SubstringByTextElements(newNameIndex, 1);
						string str = "じゃんけん  0, グー 1, チョキ  2, パー";
						switch (a)
						{
						case "0":
							switch (b)
							{
							case "0":
								str = "グーとグーで、あいこ";
							break;
							case "1":
								str = "グーとチョキで、あなたの勝ち";
							break;
							case "2":
								str = "グーとパーで、あなたの負け";
							break;
							default:
							break;
							}
						break;
						case "1":
							switch (b)
							{
							case "0":
								str = "チョキとグーで、あなたの負け";
							break;
							case "1":
								str = "チョキとチョキで、あいこ";
							break;
							case "2":
								str = "チョキとパーで、あなたの勝ち";
							break;
							default:
							break;
							}
						break;
						case "2":
							switch (b)
							{
							case "0":
								str = "パーとグーで、あなたの勝ち";
							break;
							case "1":
								str = "パーとチョキで、あなたの負け";
							break;
							case "2":
								str = "パーとパーで、あいこ";
							break;
							default:
							break;
							}
						break;
						default:
						break;
						}
						string html0 = "<html><head><meta charset='utf-8'/></head><body><h1>server side c#</h1><form method='get' action='index.html'>入力:<input type='text' name='q' size='30'><input type='submit' value='送信'><br><textarea rows='15' cols='50'>";
						string html1 = "</textarea></form></body></html>";
						byte[] text = Encoding.UTF8.GetBytes(html0 + str + html1);
						response.OutputStream.Write(text, 0, text.Length);
						Console.WriteLine("ok");
					}
					else
					{
						response.StatusCode = 404;
						Console.WriteLine("404");
					}
					response.Close();
				}
			}
			catch (Exception e)
			{
				Console.WriteLine(e.Message);
			}
		}
	}
}





以上。

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