c# - asp.net core 中的网络请求

Question

我想在 asp.net 核心项目中做一个网络请求。我尝试了以下但它似乎没有在请求中发送数据:

using System.Net;

...

//encoder
UTF8Encoding enc = new UTF8Encoding();

//data
string data = "[\"some.data\"]";

//Create request
WebRequest request = WebRequest.Create(url);
request.Method = "POST";
request.ContentType = "application/json";
request.Credentials = new NetworkCredential(user, secret);

//Set data in request
Stream dataStream = await request.GetRequestStreamAsync();
dataStream.Write(enc.GetBytes(data), 0, data.Length); 


//Get the response
WebResponse wr = await request.GetResponseAsync();
Stream receiveStream = wr.GetResponseStream();
StreamReader reader = new StreamReader(receiveStream, Encoding.UTF8);
string content = reader.ReadToEnd();

我没有收到错误，请求已发送，但它似乎没有随请求发送数据。 我也无法随请求提供数据的长度。这是一个核心问题吗？ (ps:凭证发送正确)

谁能帮帮我？

Answer 1

您可能面临同步上下文问题。 尝试等待 GetRequestStreamAsync() 和 GetResponseAsync() 等异步方法，而不是获取 Result 属性。

//Set data in request
Stream dataStream = await request.GetRequestStreamAsync();

//Get the response
WebResponse wr = await request.GetResponseAsync();