解决异步接口不能取消问题

Helper/Http/HttpClientHelper.cs

@@ -6,6 +6,7 @@ using System.Net.Http;
 using System.Net.Http.Json;
 using System.Net.Security;
 using System.Security.Cryptography.X509Certificates;
+using System.Threading;
 using System.Threading.Tasks;
 using Microsoft.Extensions.Logging;
 using Newtonsoft.Json;
@@ -68,9 +69,9 @@ public class HttpClientHelper : IHttpHelper
 		}
 	}
 
-	public async Task<TOut?> PostAsync<TIn, TOut>(string url, TIn input, int timeOut = 3) where TIn : class where TOut : class
+
+    public async Task<TOut?> PostAsync<TIn, TOut>(string url, TIn input, int timeOut = 3, CancellationToken? cts = null) where TIn : class where TOut : class
 	{
-		_ = 2;
 		try
 		{
 			HttpClient httpClient = GetHttpClient();
@@ -93,9 +94,8 @@ public class HttpClientHelper : IHttpHelper
 		}
 	}
 
-	public async Task<TOut?> GetAsync<TOut>(string url, int timeOut = 10)
+    public async Task<TOut?> GetAsync<TOut>(string url, int timeOut = 10,CancellationToken? cts = null)
 	{
-		_ = 2;
 		try
 		{
 			HttpClient httpClient = GetHttpClient();
@@ -117,7 +117,8 @@ public class HttpClientHelper : IHttpHelper
 		}
 	}
 
-	public bool DownloadFile(string url, string localPath)
+
+    public bool DownloadFile(string url, string localPath)
 	{
 		ServicePointManager.ServerCertificateValidationCallback = (object sender, X509Certificate certificate, X509Chain chain, SslPolicyErrors errors) => true;
 		HttpWebRequest httpWebRequest = WebRequest.Create(url) as HttpWebRequest;

Helper/Http/IHttpHelper.cs

@@ -1,5 +1,6 @@
 using System.Collections.Generic;
 using System.Net.Http;
+using System.Threading;
 using System.Threading.Tasks;
 
 namespace Hua.DotNet.Code.Helper.Http;
@@ -10,9 +11,9 @@ public interface IHttpHelper
 
 	Dictionary<string, string> Headers { get; set; }
 
-	Task<TOut?> PostAsync<TIn, TOut>(string url, TIn input, int timeOut = 10) where TIn : class where TOut : class;
+	Task<TOut?> PostAsync<TIn, TOut>(string url, TIn input, int timeOut = 10,CancellationToken? cts = null) where TIn : class where TOut : class;
 
-	Task<TOut?> GetAsync<TOut>(string url, int timeOut = 10);
+	Task<TOut?> GetAsync<TOut>(string url, int timeOut = 10, CancellationToken? cts = null);
 
 	bool DownloadFile(string url, string fileFullName);
 }

Helper/Http/RestClientHttpHelper.cs

@@ -21,32 +21,29 @@ public class RestClientHttpHelper : IHttpHelper
 		_logger = logger;
 	}
 
-	public virtual RestClient GetHttpClient()
+    protected virtual RestClient GetHttpClient()
 	{
-		//IL_0016: Unknown result type (might be due to invalid IL or missing references)
+		var val = ((Handler == null) ? new RestClient() : new RestClient((HttpMessageHandler)Handler, true));
-		//IL_000f: Unknown result type (might be due to invalid IL or missing references)
-		//IL_001c: Expected O, but got Unknown
-		RestClient val = ((Handler == null) ? new RestClient() : new RestClient((HttpMessageHandler)Handler, true));
 		if (Headers == null)
 		{
 			return val;
 		}
 		foreach (KeyValuePair<string, string> header in Headers)
 		{
-			RestClientExtensions.AddDefaultHeader(val, header.Key, header.Value);
+			val.AddDefaultHeader(header.Key, header.Value);
 		}
 		return val;
 	}
 
-    public async Task<TOut> PostAsync<TIn, TOut>(string url, TIn input, int timeOut = 10) where TIn : class where TOut : class
+    public async Task<TOut> PostAsync<TIn, TOut>(string url, TIn input, int timeOut = 10, CancellationToken? cts = null) where TIn : class where TOut : class
     {
 		try
 		{
-			RestClient client = GetHttpClient();
+			var client = GetHttpClient();
-			RestRequest request = RestRequestExtensions.AddJsonBody<TIn>(new RestRequest(url, (Method)0), input, "application/json");
+			var request = new RestRequest(url, Method.Post).AddJsonBody<TIn>(input, "application/json");
 			request.Timeout = TimeSpan.FromSeconds(timeOut);
-			await RestClientExtensions.PostAsync(client, request, CancellationToken.None);
+			await client.PostAsync(request, cts ?? CancellationToken.None);
-			return await RestClientExtensions.PostAsync<TOut>(client, request, default(CancellationToken));
+			return await client.PostAsync<TOut>(request, cts??CancellationToken.None);
 		}
 		catch (Exception ex)
 		{
@@ -56,13 +53,13 @@ public class RestClientHttpHelper : IHttpHelper
 		}
 	}
 
-	public async Task<TOut?> GetAsync<TOut>(string url, int timeOut = 10)
+    public async Task<TOut?> GetAsync<TOut>(string url, int timeOut = 10, CancellationToken? cts = null)
 	{
 		try
 		{
-			RestClient httpClient = GetHttpClient();
+            using RestClient httpClient = GetHttpClient();
-			RestRequest val = new RestRequest(url, (Method)0);
+            var val = new RestRequest(url,Method.Get);
-			return await RestClientExtensions.GetAsync<TOut>(httpClient, val, default(CancellationToken));
+			return await httpClient.GetAsync<TOut>(val, cts ?? CancellationToken.None);
 		}
 		catch (Exception ex)
 		{
@@ -72,7 +69,8 @@ public class RestClientHttpHelper : IHttpHelper
 		}
 	}
 
-	public bool DownloadFile(string url, string fileFullName)
+
+    public bool DownloadFile(string url, string fileFullName)
 	{
 		throw new NotImplementedException();
 	}