How to send HTTP request network resources in. Net

Application Scenarios

It should be said that as long as it is necessary to send HTTP requests to obtain network resources in the place to use it, network resources can refer to a URI to represent the resources, such as the Web API interface.

HttpWebRequest

. net2.0 ~. net4.0 using HttpWebRequest

The code is as follows:

  1  //.net2.0 ~. net4.0 using HttpWebRequest   2  var request = (HttpWebRequest) webrequest.create (requesturl); 
   
     3  var response = Request. GetResponse ();  
     4  
    using  (StreamReader reader = 
    new  StreamReader (response. GetResponseStream (), Encoding.UTF8)) 
     5  {
     6< /span> Responsejson = reader. ReadToEnd ();    7 } 8   9  //serialization   var re Sult = responsejson.fromjson<tytrainstopresponse> (); 
   

View CodeHttpClient

. NET 4.5+ using HttpClient

The code is as follows:

  1//.net 4.5+ using HttpClient  2new HttpClient ();   3 Responsejson = Httpclient.getasync (Requesturl). Result.Content.ReadAsStringAsync (). Result;   4  5//Serialization   6 var result = responsejson.fromjson< Tytrainstopresponse> ();

View CodeDifference between the two

The most unusual thing about 1,httpclient is that the same httpclient instance can make multiple requests, and each request can be a completely different URL. And a HttpWebRequest instance corresponds to a request for a URL. This is the biggest difference between httpclient and HttpWebRequest.

2,httpclient is easier to use and less code.

Resources

Http://www.cnblogs.com/dudu/archive/2013/03/05/httpclient.html

How to send HTTP request network resources in. Net