C#手写http监听

在应用程序中有时需要一个http接口来与第三方通讯。

下面是个简单的代码示例：

 1  public async void StartHttpListener(string url) 
 2 {
 3    HttpListener httpListener=new HttpListener();
 4    httpListener.Prefixes.Add(url);
 5    httpListener.Start();
 6    while(true)
 7    {
 8     var requestinfo=await httpListener.GetContextAsync();
 9       if(requestinfo.Request.HttpMethod=="POST")
10        {
11          var requestEntity=await requestinfo.ReadFromJsonAsync<RequestEntityClass>();//json转为对象
12         if(requestEntity!=null)
13           {
14 
15            }
16           else
17            {
18              await requestinfo.WriteAsJsonAsync(new ResponseInfo{ code="2",message="error"});
19            }
20        }
21      request.Response.ContentType = "application/json";
22                 request.Response.ContentEncoding = Encoding.UTF8;
23                 request.Response.OutputStream.Flush();
24                 request.Response.OutputStream.Close();
25                 request.Response.OutputStream.Dispose();
26     }
27  }