如何使用C＃发送POST请求中的json数据
这个问题在这里已经有了答案：
您可以使用HttpClient而不是WebClient和HttpWebRequest 。 这是一个更新的实现。
string myJson = "{'Username': 'myusername','Password':'pass'}";
using (var client = new HttpClient())
{
var response = await client.PostAsync(
"http://yourUrl",
new StringContent(myJson, Encoding.UTF8, "application/json"));
}
你可以用HttpWebRequest来做到这一点：
var httpWebRequest = (HttpWebRequest)WebRequest.Create("http://yourUrl");
httpWebRequest.ContentType = "application/json";
httpWebRequest.Method = "POST";
ServicePointManager.SecurityProtocol = SecurityProtocolType.Tls12 | SecurityProtocolType.Tls11 | SecurityProtocolType.Tls;
using (var streamWriter = new StreamWriter(httpWebRequest.GetRequestStream()))
{
string json = new JavaScriptSerializer().Serialize(new
{
Username = "myusername",
Password = "pass"
});
streamWriter.Write(json);
streamWriter.Flush();
streamWriter.Close();
}
var httpResponse = (HttpWebResponse)httpWebRequest.GetResponse();
using (var streamReader = new StreamReader(httpResponse.GetResponseStream()))
{
var result = streamReader.ReadToEnd();
}
你可以使用HttpClient或RestSharp ，因为我不知道你的代码是什么，这里是一个使用httpclient的例子：
using (var client = new HttpClient())
{
//This would be the like http://www.uber.com
client.BaseAddress = new Uri("Base Address/URL Address");
//serialize your json using newtonsoft json serializer then add it to the StringContent
var content = new StringContent(YourJson, Encoding.UTF8, "application/json")
//method address would be like api/callUber:SomePort for example
var result = await client.PostAsync("Method Address", content);
string resultContent = await result.Content.ReadAsStringAsync();
}