c# – 如何使用HttpWebRequest发布数据？

我有这个HttpWebRequest：

var request = HttpWebRequest.Create("http://example.com/api/Phrase/GetJDTO");
request.ContentType = "application/json";
request.Method = "POST";

但我需要在请求正文中添加一个有效负载,如下所示：

Jlpt = 2

有人可以帮忙告诉我如何向POST添加数据吗？

解决方法

你可以做到这一点

var request = HttpWebRequest.Create("http://example.com/api/Phrase/GetJDTO");

var postData = "Jlpt = 2";
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,data.Length);
}

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

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

但我建议你在这种情况下使用HttpClient而不是HttpWebRequest