作者：ludewig 链接：https://blog.csdn.net/lordwish/article/details/86615077

    C#代码

    1. using System;
    2. using System.Collections.Generic;
    3. using System.IO;
    4. using System.Linq;
    5. using System.Net;
    6. using System.Text;
    8. namespace TestHttpListener
    9. {
    10.     class Program
    11.     {
    12.         static void Main(string[] args)
    13.         {
    14.             HttpListener listener = new HttpListener();
    15.             listener.AuthenticationSchemes = AuthenticationSchemes.Anonymous;
    16.             listener.Prefixes.Add("http://localhost:8899/");
    17.             listener.Start();
    18.             Console.WriteLine("HttpListener");
    19.             listener.BeginGetContext(ListenerHandle, listener);
    20.             Console.ReadKey();
    21.             listener.Stop();
    22.             listener.Close();
    23.         }
    24.         static int i = 0;
    25.         private static void ListenerHandle(IAsyncResult result)
    26.         {
    27.             HttpListener listener = result.AsyncState as HttpListener;
    28.             if (listener == null)
    29.             {
    30.                 return;
    31.             }
    32.             if (listener.IsListening)
    33.             {
    34.                 HttpListenerContext context = listener.EndGetContext(result);
    35.                 //解析Request请求
    36.                 HttpListenerRequest request = context.Request;
    37.                 switch (request.HttpMethod)
    38.                 {
    39.                     case "POST":
    40.                         break;
    41.                     case "GET":
    42.                         foreach (var item in request.QueryString.AllKeys)
    43.                         {
    44.                             Console.WriteLine($"Key={item},Value={request.QueryString[item]}");
    45.                         }
    46.                         //构造Response响应
    47.                         HttpListenerResponse response = context.Response;
    48.                         response.StatusCode = 200;
    49.                         response.ContentType = "application/json;charset=UTF-8";
    50.                         response.ContentEncoding = Encoding.UTF8;
    51.                         response.AppendHeader("Content-Type", "application/json;charset=UTF-8");
    52.                         StreamWriter writer = new StreamWriter(response.OutputStream, Encoding.UTF8);
    53.                         writer.Write("TestHttpListener " + i++);
    54.                         writer.Close();
    55.                         response.Close();
    56.                         break;
    57.                 }
    58.                 listener.BeginGetContext(ListenerHandle, result.AsyncState);
    59.             }
    60.         }
    61.     }
    62. }

    注1
    localhost可以改成本机IP地址

    注2
    启动失败显示拒绝访问时，使用管理员身份运行

    注3
    在另一台机器打开访问没反应时，检查双方的防火墙进行开放端口，或者直接关闭（不推荐）

    注4
    参数的获取

    浏览器输入 http://localhost:8899/?id=4567
    控制台显示
    image.png