.Net创建监听http请求服务

.Net创建监听http请求服务

 服务端：

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class Program     {         static HttpListener httpobj;         static void Main(string[] args)         {             //提供一个简单的、可通过编程方式控制的 HTTP 协议侦听器。此类不能被继承。             httpobj = new HttpListener();             //定义url及端口号，通常设置为配置文件             httpobj.Prefixes.Add("http://+:8080/");             //启动监听器             httpobj.Start();             //异步监听客户端请求，当客户端的网络请求到来时会自动执行Result委托             //该委托没有返回值，有一个IAsyncResult接口的参数，可通过该参数获取context对象             httpobj.BeginGetContext(Result, null);             Console.WriteLine($"服务端初始化完毕，正在等待客户端请求,时间：{DateTime.Now.ToString()}\r\n");             Console.ReadKey();         }             private static void Result(IAsyncResult ar)         {             //当接收到请求后程序流会走到这里               //继续异步监听             httpobj.BeginGetContext(Result, null);             var guid = Guid.NewGuid().ToString();             Console.ForegroundColor = ConsoleColor.White;             Console.WriteLine($"接到新的请求:{guid},时间：{DateTime.Now.ToString()}");             //获得context对象             var context = httpobj.EndGetContext(ar);             var request = context.Request;             var response = context.Response;             ////如果是js的ajax请求，还可以设置跨域的ip地址与参数             //context.Response.AppendHeader("Access-Control-Allow-Origin", "*");//后台跨域请求，通常设置为配置文件             //context.Response.AppendHeader("Access-Control-Allow-Headers", "ID,PW");//后台跨域参数设置，通常设置为配置文件             //context.Response.AppendHeader("Access-Control-Allow-Method", "post");//后台跨域请求设置，通常设置为配置文件             context.Response.ContentType = "text/plain;charset=UTF-8";//告诉客户端返回的ContentType类型为纯文本格式，编码为UTF-8             context.Response.AddHeader("Content-type", "text/plain");//添加响应头信息             context.Response.ContentEncoding = Encoding.UTF8;             string returnObj = null;//定义返回客户端的信息             if (request.HttpMethod == "POST" && request.InputStream != null)             {                 //处理客户端发送的请求并返回处理信息                 returnObj = HandleRequest(request, response);             }             else             {                 returnObj = $"不是post请求或者传过来的数据为空";             }             var returnByteArr = Encoding.UTF8.GetBytes(returnObj);//设置客户端返回信息的编码             try             {                 using (var stream = response.OutputStream)                 {                     //把处理信息返回到客户端                     stream.Write(returnByteArr, 0, returnByteArr.Length);                 }             }             catch (Exception ex)             {                 Console.ForegroundColor = ConsoleColor.Red;                 Console.WriteLine($"网络蹦了：{ex.ToString()}");             }             Console.ForegroundColor = ConsoleColor.Yellow;             Console.WriteLine($"请求处理完成：{guid},时间：{ DateTime.Now.ToString()}\r\n");         }           private static string HandleRequest(HttpListenerRequest request, HttpListenerResponse response)         {             string data = null;             try             {                 var byteList = new List<byte>();                 var byteArr = new byte[2048];                 int readLen = 0;                 int len = 0;                 //接收客户端传过来的数据并转成字符串类型                 do                 {                     readLen = request.InputStream.Read(byteArr, 0, byteArr.Length);                     len += readLen;                     byteList.AddRange(byteArr);                 } while (readLen != 0);                 data = Encoding.UTF8.GetString(byteList.ToArray(),0, len);                   //获取得到数据data可以进行其他操作             }             catch (Exception ex)             {                 response.StatusDescription = "404";                 response.StatusCode = 404;                 Console.ForegroundColor = ConsoleColor.Red;                 Console.WriteLine($"在接收数据时发生错误:{ex.ToString()}");                 return $"在接收数据时发生错误:{ex.ToString()}";//把服务端错误信息直接返回可能会导致信息不安全，此处仅供参考             }             response.StatusDescription = "200";//获取或设置返回给客户端的 HTTP 状态代码的文本说明。             response.StatusCode = 200;// 获取或设置返回给客户端的 HTTP 状态代码。             Console.ForegroundColor = ConsoleColor.Green;             Console.WriteLine($"接收数据完成:{data.Trim()},时间：{DateTime.Now.ToString()}");             return $"接收数据完成";         }     }

客户端：

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class Program     {         static void Main(string[] args)         {             string operation;             do             {                 Console.WriteLine("按任意键发送数据到服务端");                 Console.ReadLine();                 var wc = new WebClient();                 var url = "http://127.0.0.1:8080";                 Console.WriteLine($"请求服务地址:{url}，时间：{DateTime.Now.ToString()}");                 //模拟一个json数据发送到服务端                 var data = new Data(1, "张三");                 var jsonModel = JsonConvert.SerializeObject(data);                 //发送到服务端并获得返回值                 var returnInfo = wc.UploadData(url, Encoding.UTF8.GetBytes(jsonModel));                 //把服务端返回的信息转成字符串                 var str = Encoding.UTF8.GetString(returnInfo);                 Console.ForegroundColor = ConsoleColor.Cyan;                 Console.WriteLine($"服务端返回信息：{str},时间：{DateTime.Now.ToString()}");                 Console.ForegroundColor = ConsoleColor.White;                 Console.WriteLine($"请问是否继续：继续 【y】,退出【n】");                 operation = Console.ReadLine();             } while (operation == "y");         }           class Data         {             public Data(int id, string name)             {                 this.ID = id;                 this.Name = name;             }             public int ID { get; set; }               public string Name { get; set; }         }     }

　　参考地址：https://www.cnblogs.com/yijiayi/p/9867502.html