无法使用安全链接（即https：// ......）访问.NET Core API。使用不安全的链接（即http：// ....）访问相同的API时，可以访问该API

Question

我有一个.NET Core Controller API。

• 通过安全链接（即https：/// api / values）访问Web方法时，它不起作用

• 如果我使用不安全的链接（即http：/// api / values）访问它，则工作正常。

请告知我是否需要对Startup.cs或appsettings.json进行一些设置

访问API的示例代码：

try
        {

            string serviceUrl= "https://domainname/api/values";


            HttpClient client = new HttpClient();


            HttpResponseMessage response = client.GetAsync(serviceUrl).Result;
            string stringData = response.Content.ReadAsStringAsync().Result;
        }
        catch (Exception ex)
        {

            throw ex;
        }

Answer 1

添加ServicePointManager.SecurityProtocol = SecurityProtocolType.Tls12;

解决了问题，我从.NET Core API中获取了数据。

注意 ：我在通过Miscrosoft Word VSTO-AddIn访问.NET Core Controller API时遇到问题

try
        {
            /*This is the Line I added and it makes my .NET Core API Accessible in my VSTO-AddIn  */
            ServicePointManager.SecurityProtocol = SecurityProtocolType.Tls12;

            string serviceUrl= "https://domainname/api/values";

            HttpClient client = new HttpClient();

            HttpResponseMessage response = client.GetAsync(serviceUrl).Result;
            string stringData = response.Content.ReadAsStringAsync().Result;
        }
        catch (Exception ex)
        {
            throw ex;
        }