asp.net的Restshap无效响应

问题描述 投票：0回答：2

我已经使用Visual Studio 2019开发了一个ConsoleApp C＃，可以在其中使用restsharp进行请求，并且运行良好。

这里有我用来发出请求的代码：

using RestSharp;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Web;
using System.Data;
using System.Data.SqlClient;



namespace RetailerUrlStatusChecker
{
    public class Program
    {

        static async Task Main(string[] args)
        {
            await ProcessRepositories();

        }

        private static async Task ProcessRepositories()
        {


            var client = new RestClient("https://api-developer.com/products");
            client.Timeout = -1;
            var request = new RestRequest(Method.POST);
            request.AddHeader("Content-Type", "application/json");
            request.AddHeader("Accept", "application/json");
            request.AddParameter("application/json", "{\"category\": \"all\"}", ParameterType.RequestBody);

            var response2 = await client.ExecuteTaskAsync<List>(request);
            List products= response2.Data; 

            //INSERT DATA INTO DB SQL SERVER
            string connectionString = "Data Source=utente-pc\\SQLEXPRESS;Initial Catalog=MYDB;Persist Security Info=True;User ID=user;Password=sa";
            SqlConnection connection = new SqlConnection(connectionString);

            try
            {

                SqlCommand cmd = new SqlCommand("INSERT INTO PRODUCT (code, name, description) VALUES (@code, @name, @description)", connection);
                cmd.Parameters.AddWithValue("@code", products.code);
                cmd.Parameters.AddWithValue("@name", products.name);
                cmd.Parameters.AddWithValue("@description", products.description);

                connection.Open();
                cmd.ExecuteNonQuery();
            }

            catch
            {
                //Label4.Text = "uh oh";
            }

        }
    }


    public class List
    {

        public string code{ get; set; }
        public string name{ get; set; }
        public string description{ get; set; }
    }






}

我需要在项目Web表单asp.net中实现此请求，我尝试编写相同的代码，但是它不起作用，我收到了响应null。

这是关于我的页面asp.net的代码

using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
using RestSharp;
using System.Data;
using System.Data.SqlClient;
using System.Threading.Tasks;

namespace WebApplication2
{
    public partial class _Default : Page
    {
        protected void Page_Load(object sender, EventArgs e)
        {
            RegisterAsyncTask(new PageAsyncTask(GetGizmosSvcAsync));
        }

        public async Task GetGizmosSvcAsync()
        {
            var client = new RestClient("https://api-developer.com/products");
            client.Timeout = -1;
            var request = new RestRequest(Method.POST);
            request.AddHeader("Content-Type", "application/json");
            request.AddHeader("Accept", "application/json");
            request.AddParameter("application/json", "{\"category\": \"all\"}", ParameterType.RequestBody);

            var response2 = await client.ExecuteTaskAsync<List>(request);
            List products= response2.Data; 

            //INSERT DATA INTO DB SQL SERVER
            string connectionString = "Data Source=utente-pc\\SQLEXPRESS;Initial Catalog=MYDB;Persist Security Info=True;User ID=user;Password=sa";
            SqlConnection connection = new SqlConnection(connectionString);

            try
            {

                SqlCommand cmd = new SqlCommand("INSERT INTO PRODUCT (code, name, description) VALUES (@code, @name, @description)", connection);
                cmd.Parameters.AddWithValue("@code", products.code);
                cmd.Parameters.AddWithValue("@name", products.name);
                cmd.Parameters.AddWithValue("@description", products.description);

                connection.Open();
                cmd.ExecuteNonQuery();
            }

            catch
            {
                //Label4.Text = "uh oh";
            }
        }
    }

    public class List
    {

        public string code{ get; set; }
        public string name{ get; set; }
        public string description{ get; set; }
    }

}

我已经在页面asp.net的

我不明白为什么相同的代码在consoleapp c＃上能很好地工作，但是在asp.net c＃上却不能工作

感谢您的帮助！

响应方案是：

{
   "code": {
      "type": "string"
    },     
    "name": {
      "type": "string"
    },
    "description": {
      "type": "string"
    }

}
c# asp.net restsharp
2个回答
0
投票

[不知道端点响应的结构如何，很难为您提供帮助。但是基于名称（“https://api-developer.com/产品”），假设它返回产品集合。因此，尝试将var response2 = await client.ExecuteTaskAsync<List>(request);语句修改为var response2 = await client.ExecuteTaskAsync<System.Collections.Generic.List<List>>(request);

<< [或根据您的下一条语句List products = response2.Data;假设请求返回一些对象，该对象包含的数据是List对象的集合，如下所示：

public class RootObject() { public System.Collections.Generic.List<List> Data { get; set; } } 
如果是这种情况，请尝试将var response2 = await client.ExecuteTaskAsync<List>(request);修改为var response2 = await client.ExecuteTaskAsync<RootObject>(request);
因此，您最终的GetGizmosSvcAsync方法如下所示：
public async Task GetGizmosSvcAsync()
{
    var client = new RestClient("https://api-developer.com/products");
    client.Timeout = -1;
    var request = new RestRequest(Method.POST);
    request.AddHeader("Content-Type", "application/json");
    request.AddHeader("Accept", "application/json");
    request.AddParameter("application/json", "{\"category\": \"all\"}", ParameterType.RequestBody);

    var response2 = await client.ExecuteTaskAsync<RootObject>(request);
    var products = response2.Data;  //List products = response2.Data; 

    //INSERT DATA INTO DB SQL SERVER
    string connectionString = "Data Source=utente-pc\\SQLEXPRESS;Initial Catalog=MYDB;Persist Security Info=True;User ID=user;Password=sa";
    SqlConnection connection = new SqlConnection(connectionString);

    try
    {

        SqlCommand cmd = new SqlCommand("INSERT INTO PRODUCT (code, name, description) VALUES (@code, @name, @description)", connection);
        connection.Open();

        foreach (var product in products)
        {
            cmd.Parameters.AddWithValue("@code", product.code);
            cmd.Parameters.AddWithValue("@name", product.name);
            cmd.Parameters.AddWithValue("@description", product.description);
            cmd.ExecuteNonQuery();
        }
    }

    catch
    {
        //Label4.Text = "uh oh";
    }
}
0
投票
我已经检查了请求的所有属性，并将其与其他方法（consoleapp，Web应用程序，邮递员）进行了比较。所有属性都是相同的。现在，我检查了对象“ client”的属性，并在控制台应用程序中查看了属性client.enconding = {System.Text.UTF8Encoding.UTF8EncodingSealed}，而不是在Web应用程序中查看了client.enconding = {System.Text.UTF8Encoding } ...

现在，我想尝试在Web应用程序属性中设置client.encondig = {System.Text.UTF8Encoding.UTF8EncodingSealed}，但我不知道如何更改此值...

与consoleapp和Web应用程序不同的请求仅是客户端。Encondif，我希望它可以解决我的问题。

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