c# - 如何将 JSON 输出转换为 c# 对象并将它们存储到数组中
问题描述
我正在尝试将 JSON 输出反序列化为 .net 对象，但将输出设为 null。
我编写了这段代码来获取 JSON 数据并对其进行反序列化。
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Net;
using System.IO;
using Newtonsoft.Json;
namespace ConsoleApp1
{
public enum httpverb
{
GET,
POST,
PUT,
DELETE
}
public class Item
{
public string item_id { get; set; }
public string name { get; set; }
public string item_name { get; set; }
public string hsn_or_sac { get; set; }
public string sku { get; set; }
public string image_name { get; set; }
public string status { get; set; }
public string source { get; set; }
public string description { get; set; }
public string cf_category { get; set; }
public string cf_maximum_retail_price_mrp { get; set; }
public DateTime created_time { get; set; }
public DateTime last_modified_time { get; set; }
public bool track_serial_number { get; set; }
}
class APIs
{
xxxxxcode goes here to fetch JSON from API and store into variable strResponseValue
string Jsoncontent = strResponseValue; //Jsoncontent holds json data
Item books = JsonConvert.DeserializeObject<Item>(Jsoncontent);
//how to access each object.
}
}
这是必须反序列化的 JSON 输出。
{
"code": 0,
"message": "success",
"items": [
{
"item_id": "519558000025988777",
"name": "0",
"image_document_id": "",
"item_name": "0",
"hsn_or_sac": "",
"sku": "",
"image_name": "",
"status": "active",
"source": "user",
"is_linked_with_zohocrm": false,
"zcrm_product_id": "",
"description": "",
"item_tax_preferences": [
{
"tax_specification": "inter",
"tax_type": 0,
"tax_name": "IGST18",
"tax_percentage": 18,
"tax_id": "519558000000076071"
},
{
"tax_specification": "intra",
"tax_type": 2,
"tax_name": "GST18",
"tax_percentage": 18,
"tax_id": "519558000000076077"
}
],
"rate": 1439.84,
"tax_id": "",
"reorder_level": "",
"tax_name": "",
"tax_percentage": 0,
"purchase_account_id": "",
"purchase_account_name": "",
"account_name": "Sales",
"unit": "",
"purchase_description": "",
"purchase_rate": 0,
"item_type": "sales",
"product_type": "goods",
"is_taxable": true,
"tax_exemption_id": "",
"tax_exemption_code": "",
"has_attachment": false,
"is_combo_product": false,
"created_time": "2019-04-25T17:31:13+0530",
"last_modified_time": "2019-04-25T17:31:13+0530",
"track_serial_number": false
},
{
"item_id": "519558000005300339",
"name": "Acer HA270 27\" Full HD IPS White Color Ultra Slim Monitor",
"image_document_id": "",
"item_name": "Acer HA270 27\" Full HD IPS White Color Ultra Slim Monitor",
"hsn_or_sac": "8528",
"sku": "HA270",
"image_name": "",
"status": "active",
"source": "user",
"is_linked_with_zohocrm": false,
"zcrm_product_id": "",
"description": "",
"item_tax_preferences": [
{
"tax_specification": "inter",
"tax_type": 0,
"tax_name": "IGST18",
"tax_percentage": 18,
"tax_id": "519558000000076071"
},
{
"tax_specification": "intra",
"tax_type": 2,
"tax_name": "GST18",
"tax_percentage": 18,
"tax_id": "519558000000076077"
}
],
"rate": 16999,
"tax_id": "",
"reorder_level": "",
"tax_name": "",
"tax_percentage": 0,
"purchase_account_id": "519558000000043003",
"purchase_account_name": "Cost of Goods Sold",
"account_name": "Sales",
"unit": "Unit",
"purchase_description": "",
"purchase_rate": 11300,
"item_type": "inventory",
"product_type": "goods",
"is_taxable": true,
"tax_exemption_id": "",
"tax_exemption_code": "",
"stock_on_hand": -1,
"has_attachment": false,
"is_combo_product": false,
"cf_category": "Monitor",
"cf_maximum_retail_price_mrp": "18500",
"created_time": "2019-02-13T18:08:37+0530",
"last_modified_time": "2019-04-28T16:16:11+0530",
"track_serial_number": false
},
{
"item_id": "519558000001595908",
"name": "Acer KA240H bd 24-inch Full HD (1920 x 1080) Display (VGA, DVI Ports)",
"image_document_id": "",
"item_name": "Acer KA240H bd 24-inch Full HD (1920 x 1080) Display (VGA, DVI Ports)",
"hsn_or_sac": "8528",
"sku": "KA240H",
"image_name": "",
"status": "active",
"source": "user",
"is_linked_with_zohocrm": false,
"zcrm_product_id": "",
"description": "",
"item_tax_preferences": [
{
"tax_specification": "inter",
"tax_type": 0,
"tax_name": "IGST18",
"tax_percentage": 18,
"tax_id": "519558000000076071"
},
{
"tax_specification": "intra",
"tax_type": 2,
"tax_name": "GST18",
"tax_percentage": 18,
"tax_id": "519558000000076077"
}
],
"rate": 9000,
"tax_id": "",
"reorder_level": "",
"tax_name": "",
"tax_percentage": 0,
"purchase_account_id": "519558000000043003",
"purchase_account_name": "Cost of Goods Sold",
"account_name": "Sales",
"unit": "Unit",
"purchase_description": "",
"purchase_rate": 6600,
"item_type": "inventory",
"product_type": "goods",
"is_taxable": true,
"tax_exemption_id": "",
"tax_exemption_code": "",
"stock_on_hand": 2,
"has_attachment": false,
"is_combo_product": false,
"cf_category": "Monitor",
"cf_maximum_retail_price_mrp": "0",
"created_time": "2018-08-31T12:53:35+0530",
"last_modified_time": "2018-12-13T21:01:59+0530",
"track_serial_number": false
},
{
"item_id": "519558000005612779",
"name": "ADATA XPG GAMMIX D10 8GB DDR4 RAM 2666MHz for Desktop RAM",
"image_document_id": "",
"item_name": "ADATA XPG GAMMIX D10 8GB DDR4 RAM 2666MHz for Desktop RAM",
"hsn_or_sac": "8473",
"sku": "AX4U266638G16-SRG",
"image_name": "",
"status": "active",
"source": "user",
"is_linked_with_zohocrm": false,
"zcrm_product_id": "",
"description": "",
"item_tax_preferences": [
{
"tax_specification": "inter",
"tax_type": 0,
"tax_name": "IGST18",
"tax_percentage": 18,
"tax_id": "519558000000076071"
},
{
"tax_specification": "intra",
"tax_type": 2,
"tax_name": "GST18",
"tax_percentage": 18,
"tax_id": "519558000000076077"
}
],
"rate": 4999,
"tax_id": "",
"reorder_level": "",
"tax_name": "",
"tax_percentage": 0,
"purchase_account_id": "519558000000043003",
"purchase_account_name": "Cost of Goods Sold",
"account_name": "Sales",
"unit": "Unit",
"purchase_description": "",
"purchase_rate": 3100,
"item_type": "inventory",
"product_type": "goods",
"is_taxable": true,
"tax_exemption_id": "",
"tax_exemption_code": "",
"stock_on_hand": 2,
"has_attachment": false,
"is_combo_product": false,
"cf_category": "RAM",
"cf_maximum_retail_price_mrp": "14999",
"created_time": "2019-03-01T18:06:05+0530",
"last_modified_time": "2019-04-27T17:08:53+0530",
"track_serial_number": false
}
],
"page_context": {
"page": 1,
"per_page": 200,
"has_more_page": true,
"report_name": "Items",
"applied_filter": "Status.All",
"custom_fields": [],
"sort_column": "name",
"sort_order": "A"
}
}
提供的 JSON 的输出必须反序列化为 C# 对象并存储到数组中。
解决方案
您必须在代码中添加此根类：
public class Root
{
public string code { get; set; }
public string message { get; set; }
public Item[] items { get; set; }
}
然后在您已经存在的Item类中添加或删除所需的属性。例如，在输入 JSON 中，属性比您的类中的要多，如果您需要更多，只需将它们添加到您的 Item 类中。我使用了您提供的课程。
然后你这样做：
var inputObj = JsonConvert.DeserializeObject<Root>(json);
您需要以下 NuGet 包：Newtonsoft.Json
上面代码中的json是保存整个 JSON 的字符串变量，由您提供。请注意，在您提供的 json 中，最后缺少“}”。
inputObj是 Root 类类型的对象，包含所有项目的数组。例如 inputObj.items
如果您需要更多帮助，请在下方评论。
干杯
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