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【C#】HttpListenerで簡易サーバー作成する

Last updated at 2019-08-21Posted at 2019-08-21

備忘録とMarkdown記法に慣れる練習兼ねて。

D01tsumaTask1.cs


using System;
using System.Diagnostics;
using System.Net;
using System.Text;

namespace D01tsumaTask1
{
    class Program
    {
        static void Main(string[] args)
        {
            try
            {
                // HTTPリスナー作成
                HttpListener listener = new HttpListener();

                // リスナー設定
                listener.Prefixes.Clear();
                listener.Prefixes.Add(@"http://+:8080/");

                // リスナー開始
                listener.Start();

                while (true)
                {
                    // リクエスト取得
                    HttpListenerContext context = listener.GetContext();
                    HttpListenerRequest request = context.Request;

                    // レスポンス取得
                    HttpListenerResponse response = context.Response;

                    // HTMLを表示する
                    if (request != null)
                    {
                        byte[] text = Encoding.UTF8.GetBytes("<html><head><meta charset='utf-8'/></head><body><h1>どいつま.com</h1></body></html>");
                        response.OutputStream.Write(text, 0, text.Length);
                    }
                    else
                    {
                        response.StatusCode = 404;
                    }
                    response.Close();
                }

            }
            catch (Exception e)
            {
                Console.WriteLine(e.Message);
            }
        }
    }
}

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