C# POST 请求到 webapi 使用控制台程序

Question

我有一个可以通过浏览器成功访问的 web api :-

https://127.0.0.1:8443/ncrApi

我正在尝试使用 VS2015 在 C# 中创建一个简单的控制台程序，以使用 http POST 发送数据和接收响应。

这是我目前所拥有的:-

using System;
using System.Net.Http;
using System.Net.Http.Headers;
using System.Threading.Tasks;

namespace WebSample
{

    class ApiSendData
    {
        public string ApiFunction { get; set; }
        public string DppName { get; set; }
        public string ClearData { get; set; }
        public string DppVersion { get; set; }
    }



    class Program
    {
        static void Main(string[] args)
        {
            // The Main function calls an async method named RunAsync 
            // and then blocks until RunAsyncc completes.
            RunAsync().Wait();
        }

        static async Task RunAsync()
        {
            using (var client = new HttpClient())
            {
                // This code sets the base URI for HTTP requests, 
                // and sets the Accept header to "application/json", 
                // which tells the server to send data in JSON format.
                client.BaseAddress = new Uri("https://localhost:8443/ncrApi");
                client.DefaultRequestHeaders.Accept.Clear();
                client.DefaultRequestHeaders.Accept.Add(new MediaTypeWithQualityHeaderValue("application/json"));


                // HTTP POST
                var datatobeSent = new ApiSendData()
                                    {
                                        ApiFunction ="NcrSecureData",
                                        DppName ="CSampleCustomer",
                                        DppVersion ="Latest",
                                        ClearData ="1234567890"
                                    };

                HttpResponseMessage response = await client.PostAsJsonAsync("ncrApi", datatobeSent);

                if (response.IsSuccessStatusCode)
                {
                    // Get the URI of the created resource.
                    Uri ncrUrl = response.Headers.Location;

                    // do whatever you need to do here with the returned data //


                }
            }
        }
    }
}

但是我在 HttpResonseMessage 响应语句中收到错误....{“发送请求时发生错误。”}{“请求被中止:无法创建 SSL/TLS 安全通道。”

我怀疑这是因为我没有正确理解 client.BaseAddress 和 HttpResponseMessage 响应语句。

这是我一直关注的内容:- http://www.asp.net/web-api/overview/advanced/calling-a-web-api-from-a-net-client

Answer 1

您可能收到错误，因为最终地址是您的基本地址 + 邮寄地址，即:http://localhost:8443/nrcApi/nrcApi , 不存在

尝试将您的 client.BaseAddress 更改为:

client.BaseAddress = new Uri("https://localhost:8443/");

对于 SSL 连接错误，请尝试生成受信任的证书: Make https call using httpclient