錯誤 Newtonsoft.Json.JsonReaderException：'解析值時遇到意外字符：S. 路徑''，第 0 行，位置 0。

Question

我有這個問題，我相信這是 Json 中的問題，但我已經嘗試了一切，但我無法返回對象。

我的代碼：

        public List<Product> List()
        {
            var retorno = new List<Product>();
            try
            {
                using (var client = new HttpClient())
                {
                    using (var request = new HttpRequestMessage(new HttpMethod("GET"), "https://teste.teste1.com.br/app/Api/V1/Products/list"))
                    {
                        client.DefaultRequestHeaders.Add("x-user-email", "victor@teste.com.br");
                        client.DefaultRequestHeaders.Add("x-api-key", "eyJ0edsasa3121dasdas312dsa");
                        client.DefaultRequestHeaders.Add("x-store-key", "1");
                        request.Content = new StringContent("Content-Type", Encoding.UTF8, "application/json");
                        client.DefaultRequestHeaders.Add("accept", "application/json;charset=UTF-8");
                        var response = client.SendAsync(request);
                        //var response = client.GetStringAsync(uprApi + "app/Api/V1/Products/list");
                        response.Wait();
                        retorno = JsonConvert.DeserializeObject<Product[]>(response.Result.ToString()).ToList();
                    }
                }
            }
            catch (Exception)
            {
                throw;
            }
            return retorno;
        }

圖像錯誤：

編輯：

我的json：

{
    "success": true,
    "offset": 0,
    "result": {
        "error": false,
        "registers_count": 5,
        "pages_count": 1,
        "page": 1,
        "data": [
            {
                "product": {
                    "sku": "01",
                    "name": "Produto teste 01",
                    "description": "Produto de teste 01.",
                    "status": "enabled",
                    "qty": 30,
                    "price": 149.9,
                    "list_price": 199.9,
                    "weight_gross": 0.1,
                    "weight_liquid": 0.1,
                    "height": 1,
                    "width": 1,
                    "length": 1,
                    "items_per_package": "1",
                    "brand": "Colcci",
                    "ean": null,
                    "ncm": null,
                    "categories": [
                        {
                            "code": "339",
                            "name": "ESPORTES/Academia e Fitness/Roupas"
                        }
                    ]
                }
            },
            {
                "product": {
                    "sku": "3",
                    "name": "Produto DESATIVADO",
                    "description": "xyz",
                    "status": "disabled",
                    "qty": 0,
                    "price": 5.8,
                    "list_price": null,
                    "weight_gross": 0.1,
                    "weight_liquid": 0.1,
                    "height": 1,
                    "width": 1,
                    "length": 1,
                    "items_per_package": "1",
                    "brand": "Colcci",
                    "ean": null,
                    "ncm": null,
                    "categories": [
                        {
                            "code": null,
                            "name": null
                        }
                    ],
                    "variation_attributes": [
                        "UN"
                    ]
                }
            },
            {
                "product": {
                    "sku": "2",
                    "name": "Produto X",
                    "description": "xyz",
                    "status": "enabled",
                    "qty": 0,
                    "price": 5.8,
                    "list_price": null,
                    "weight_gross": 0.1,
                    "weight_liquid": 0.1,
                    "height": 1,
                    "width": 1,
                    "length": 1,
                    "items_per_package": "1",
                    "brand": "Colcci",
                    "ean": null,
                    "ncm": null,
                    "categories": [
                        {
                            "code": null,
                            "name": null
                        }
                    ],
                    "variation_attributes": [
                        "UN"
                    ]
                }
            },
            {
                "product": {
                    "sku": "1",
                    "name": "Produto",
                    "description": "Descrição do Produto Criado",
                    "status": "disabled",
                    "qty": 176,
                    "price": 5.9,
                    "list_price": 5.8,
                    "weight_gross": 0.1,
                    "weight_liquid": 0.1,
                    "height": 1,
                    "width": 1,
                    "length": 1,
                    "items_per_package": "1",
                    "brand": "Colcci",
                    "ean": "7896044963486",
                    "ncm": null,
                    "categories": [
                        {
                            "code": "3",
                            "name": "FEMININO/Roupas/Blusas e Camisas"
                        }
                    ],
                    "variations": [
                        {
                            "sku": "P_B",
                            "qty": 12,
                            "EAN": null,
                            "price": 5.8,
                            "list_price": 5.8,
                            "images": [],
                            "variant": [
                                {
                                    "size": "p"
                                },
                                {
                                    "color": "Branco"
                                }
                            ]
                        },
                        {
                            "sku": "M_P",
                            "qty": 14,
                            "EAN": null,
                            "price": 5.8,
                            "list_price": 5.8,
                            "images": [],
                            "variant": [
                                {
                                    "size": "m"
                                },
                                {
                                    "color": "Preto"
                                }
                            ]
                        },
                        {
                            "sku": "ABC1",
                            "qty": 150,
                            "EAN": null,
                            "price": 5.9,
                            "list_price": 5.8,
                            "images": [],
                            "variant": [
                                {
                                    "size": "p"
                                },
                                {
                                    "color": "Azul"
                                }
                            ]
                        }
                    ]
                }
            },
            {
                "product": {
                    "sku": "GG004",
                    "name": "Gabinete Gamer",
                    "description": "Gabinete Gamer com RGB",
                    "status": "enabled",
                    "qty": 6,
                    "price": 399.9,
                    "list_price": 399.9,
                    "weight_gross": 0.3,
                    "weight_liquid": 0.25,
                    "height": 9,
                    "width": 3,
                    "length": 5,
                    "items_per_package": "1",
                    "brand": "Colcci",
                    "ean": null,
                    "ncm": null,
                    "categories": [
                        {
                            "code": "276",
                            "name": "CELULARES & ELETRÔNICOS/Informática/Games"
                        }
                    ],
                    "images": [
                        "https://manairadigitalteste.conectala.com.br/app/assets/images/product_image/4B3451F8-C862-7884-D169-5F256FA31F91/16581443192118.jpg"
                    ],
                    "published_marketplace": {
                        "ManairaDigital": "5_ManairaDigital"
                    },
                    "marketplace_offer_links": [
                        {
                            "name": "ManairaDigital",
                            "href": "https://manairadigital.com.br/gabinete-gamer-29/p"
                        }
                    ]
                }
            }
        ]
    }
}

編輯2：標題：

             {"x-user-email", "victor@manairadigital.com.br"},
             {"x-api-key", "eyJ0eXAiOiJKV1QiLCJhbGciOiJIUzI1NiJ9.eyJjb2Rfc3RvcmUiOjMsImNvZF9jb21wYW55Ijo3fQ.E_sxhnwcmN5GtNGRYbVD66ciMi3JoJNjormS1q3mxYg"},
             {"x-store-key", "3"},
             {"Content-Type", "application/json"},
             {"accept", "application/json;charset=UTF-8"}

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編輯 3在此處輸入圖像描述

Answer 1

首先使用Wait你有一個同步代碼並且會阻塞線程直到任務完成。 您應該等待請求，以便異步等待任務完成。 試試這個，並將包裝這個請求的方法標記為異步：

public async Task GetAsync() 
{
     var httpRequestMessage = new HttpRequestMessage(
            HttpMethod.Get,
            "https://example.com/api/endpoint" // here goes your url
     
     {
         Headers = 
         {
             {"key", "value"}, // here goes your headers             
         }
     }

     var client = new HttpClient();
     using var response = await client.SendAsync(httpRequestMessage);
     response.EnsureSuccessStatusCode();
     var responseBody = await response.Content.ReadAsStringAsync();
     var root = JsonSerializer.Deserialize<Rootobject>(responseBody);
}

異步獲取 json 響應，然后從 Visual Studio Edit->Paste Special->Paste JSON as classes的菜單中將 json 粘貼為類。 如果你這樣做會得到這些類：

public class Rootobject
{
    public bool success { get; set; }
    public int offset { get; set; }
    public Result result { get; set; }
}

public class Result
{
    public bool error { get; set; }
    public int registers_count { get; set; }
    public int pages_count { get; set; }
    public int page { get; set; }
    public Datum[] data { get; set; }
}

public class Datum
{
    public Product product { get; set; }
}

public class Product
{
    public string sku { get; set; }
    public string name { get; set; }
    public string description { get; set; }
    public string status { get; set; }
    public int qty { get; set; }
    public float price { get; set; }
    public float? list_price { get; set; }
    public float weight_gross { get; set; }
    public float weight_liquid { get; set; }
    public int height { get; set; }
    public int width { get; set; }
    public int length { get; set; }
    public string items_per_package { get; set; }
    public string brand { get; set; }
    public string ean { get; set; }
    public object ncm { get; set; }
    public Category[] categories { get; set; }
    public string[] variation_attributes { get; set; }
    public Variation[] variations { get; set; }
    public string[] images { get; set; }
    public Published_Marketplace published_marketplace { get; set; }
    public Marketplace_Offer_Links[] marketplace_offer_links { get; set; }
}

public class Published_Marketplace
{
    public string ManairaDigital { get; set; }
}

public class Category
{
    public string code { get; set; }
    public string name { get; set; }
}

public class Variation
{
    public string sku { get; set; }
    public int qty { get; set; }
    public object EAN { get; set; }
    public float price { get; set; }
    public float list_price { get; set; }
    public object[] images { get; set; }
    public Variant[] variant { get; set; }
}

public class Variant
{
    public string size { get; set; }
    public string color { get; set; }
}

public class Marketplace_Offer_Links
{
    public string name { get; set; }
    public string href { get; set; }
}

Answer 2

你是對的。 反序列化課程時我遇到了同樣的問題。 反序列化對象時，問題出在您的 json 上。反序列化時使用此類。

public class Rootobject
    {
        public bool success { get; set; }
        public int offset { get; set; }
        public Result result { get; set; }
    }

    public class Result
    {
        public bool error { get; set; }
        public int registers_count { get; set; }
        public int pages_count { get; set; }
        public int page { get; set; }
        public Datum[] data { get; set; }
    }

    public class Datum
    {
        public Product product { get; set; }
    }

    public class Product
    {
        public string sku { get; set; }
        public string name { get; set; }
        public string description { get; set; }
        public string status { get; set; }
        public int qty { get; set; }
        public float price { get; set; }
        public float? list_price { get; set; }
        public float weight_gross { get; set; }
        public float weight_liquid { get; set; }
        public int height { get; set; }
        public int width { get; set; }
        public int length { get; set; }
        public string items_per_package { get; set; }
        public string brand { get; set; }
        public string ean { get; set; }
        public object ncm { get; set; }
        public Category[] categories { get; set; }
        public string[] variation_attributes { get; set; }
        public Variation[] variations { get; set; }
        public string[] images { get; set; }
        public Published_Marketplace published_marketplace { get; set; }
        public Marketplace_Offer_Links[] marketplace_offer_links { get; set; }
    }

    public class Published_Marketplace
    {
        public string ManairaDigital { get; set; }
    }

    public class Category
    {
        public string code { get; set; }
        public string name { get; set; }
    }

    public class Variation
    {
        public string sku { get; set; }
        public int qty { get; set; }
        public object EAN { get; set; }
        public float price { get; set; }
        public float list_price { get; set; }
        public object[] images { get; set; }
        public Variant[] variant { get; set; }
    }

    public class Variant
    {
        public string size { get; set; }
        public string color { get; set; }
    }

    public class Marketplace_Offer_Links
    {
        public string name { get; set; }
        public string href { get; set; }
    }