我正在学习如何在C#中使用xamarin,并且我有一个Android应用程序来向外部API发出Web请求,并且我收到以下错误;
System.Net.Http.HttpRequestException: An error occurred while sending the request ---> System.Net.WebException: Error: SecureChannelFailure (The authentication or decryption has failed.) ---> System.IO.IOException: The authentication or decryption has failed. ---> System.IO.IOException: The authentication or decryption has failed. ---> Mono.Security.Protocol.Tls.TlsException: The authentication or decryption has failed.
我的代码如下;
public async Task> GetList
(string url) { HttpClient client = new HttpClient(); var response = await client.GetAsync(new Uri(url)); response.EnsureSuccessStatusCode(); var content = await response.Content.ReadAsStringAsync(); return JsonConvert.DeserializeObject >(content); }
android中的MainClass调用核心类,它调用此服务类.
HttpClient的请求时,API不工作,不使用HTTPS,但每当我使用已启用HTTPS的API抛出此错误.
我也使用可移植类库来存储代码,因此无法使用HttpWebRequest进行Web请求.
我也尝试过;
ServicePointManager.ServerCertificateValidationCallback += (o, certificate, chain, errors) => true;
和;
System.Security.Cryptography.AesCryptoServiceProvider b = new System.Security.Cryptography.AesCryptoServiceProvider();
在我的应用程序OnCreate类(android)中.
我还将HttpClient实现更改为AndroidClientHandler,同时将SSL/TLS实现更改为1.1.在模拟器和设备上尝试此操作.
有人有建议吗?
试试这个:打开Android项目属性 - > Android选项 - >高级
将HttpClient实现设置从Default切换到Android
似乎默认的Mono客户端处理程序因HTTPS而中断.