How to Send HTTP POST Requests in .NET Using HttpClient, RestSharp, and Other Methods?

.NET platform sends a variety of methods to send HTTP post requests detailed

This article will fully explain how to send HTTP post requests under the .NET framework. This is a common method for sending data to the server for processing.

Recommended method: httpclient

In the .NET, using the

class is the preferred method for sending HTTP requests. It provides a high -performance asynchronous way to send requests and receiving responses. HttpClient

// 初始化
private static readonly HttpClient client = new HttpClient();

// POST 请求
var values = new Dictionary<string, string>()
{
    { "thing1", "hello" },
    { "thing2", "world" }
};

var content = new FormUrlEncodedContent(values);

var response = await client.PostAsync("http://www.example.com/recepticle.aspx", content);

var responseString = await response.Content.ReadAsStringAsync();

Method 2: The third party library

RESTSHARP

RESTSHARP is a popular third -party HTTP request library that provides convenient and easy -to -use APIs and rich functions.

Flurl.http

// POST 请求
var client = new RestClient("http://example.com");
var request = new RestRequest("resource/{id}");
request.AddParameter("thing1", "Hello");
request.AddParameter("thing2", "world");
var response = client.Post(request);
var content = response.Content; // 原始字符串内容

Flurl.http is a newer library, with smooth API and portable.

Method 3: httpwebrequest

// POST 请求
var responseString = await "http://www.example.com/recepticle.aspx"
    .PostUrlEncodedAsync(new { thing1 = "hello", thing2 = "world" })
    .ReceiveString();

<> abandoned

<一> is an older method. It is not recommended for new projects, because its performance is low and the function is not as good as .

Method 4: Webclient HttpWebRequest HttpClient <> abandoned

// POST 请求
var request = (HttpWebRequest)WebRequest.Create("http://www.example.com/recepticle.aspx");

var postData = "thing1=" + Uri.EscapeDataString("hello");
postData += "&thing2=" + Uri.EscapeDataString("world");
var data = Encoding.ASCII.GetBytes(postData);

request.Method = "POST";
request.ContentType = "application/x-www-form-urlencoded";
request.ContentLength = data.Length;

using (var stream = request.GetRequestStream())
{
    stream.Write(data, 0, data.Length);
}

var response = (HttpWebResponse)request.GetResponse();

var responseString = new StreamReader(response.GetResponseStream()).ReadToEnd();

is a

packaging device, which is usually not recommended for new projects.

The above is the detailed content of How to Send HTTP POST Requests in .NET Using HttpClient, RestSharp, and Other Methods?. For more information, please follow other related articles on the PHP Chinese website!