如何使用 .Text var 序列化和反序列化 Json

Question

您好，我正在使用 Xamarin 对 android 进行应用程序。我编写了一个代码来从 WSO2 调用 API，它返回的答案取决于用户发送的 ID。它在 Content 中返回一个 JSON，如下所示：

{"consumerId":56704292158, “类别 ID”：1， “类别描述”： “佩索阿”， "firstName":"FN","lastName":"Last Name","fiscalDocuments":[{"fiscalDocument":{"documentType":"Brasil: nº CPF","cpf":199999992}}],"gender ":"M","emailAddress":"r****@*.com","optIns":[{"optIn":{"brandName":"consul","acceptanceStatus":false}},{ "optIn":{"brandName":"brastemp","acceptanceStatus":true}}],"communicationData":[{"communicationInfo":{"addressId":2****03,"phoneNumbers":[{ "phoneNumber":{"phoneType":"mobilePhone","phoneNumber":5555555555}}],"streetAddress":"ANY STREET","streetNumber":123,"streetComplement":null,"streetDistrict":"ANY TOWN","cityName":"ANY CITY","stateCode":"XX","zipCode":"12345"," locationReferences":[{"locationReference":"Mercado"}],"countryCode":"ZZ"}},{"communicationInfo":{"addressId":2.563244E+7,"phoneNumbers":[{"phoneNumber": {"phoneType":"mobilePhone","phoneNumber":5555555555}},{"phoneNumber":{"phoneType":"homePhone","phoneNumber":555555555}}],"streetAddress":"ANY STREET"," streetNumber":123,"streetComplement":"CASA","streetDistrict":"ANY TOWN","cityName":"ANY CITY","stateCode":"XX","zipCode":"12345","locationReferences" :[{"locationReference":"Ao lado do deposito lua nova"}],"countryCode":"ZZ"}}]}

我只想从这个字段中获取名字和姓氏。我正在尝试序列化它，但我认为我做错了什么。这是代码

using System;
using Android.App;
using Android.Widget;
using Android.OS;
using RestSharp;
using Newtonsoft.Json;
using Android.Util;
using App4.Resources;
using Newtonsoft.Json.Linq;

namespace App4
{
    [Activity(Label = "App4", MainLauncher = true, Icon = "@drawable/icon")]
    public class MainActivity : Activity
    {
        EditText edtcpf;
        Button btnConsumer;
        TextView txtcpf;
        RestRequest cpf { get; set; }
        public RestClient consumer { get; set; }
        IRestResponse mensagemConsumer;
        TextView txtresposta;
        RestClient orderId { get; set; }
        RestRequest requestorderId { get; set; }
        IRestResponse answer { get; set; }
        IRestResponse answerorder { get; set; }
        TextView txtnome;
        public string raika;
        private string teamname;
        private JToken primeironome;

       protected override void OnCreate(Bundle bundle)
       {
            base.OnCreate(bundle);

            // Set our view from the "main" layout resource
            SetContentView(Resource.Layout.Main);
            btnConsumer = FindViewById<Button>(Resource.Id.btnConsumer);
            edtcpf = FindViewById<EditText>(Resource.Id.edtcpf);
            txtcpf = FindViewById<TextView>(Resource.Id.txtcpf);
            txtresposta = FindViewById<TextView>(Resource.Id.txtresposta);
            txtnome = FindViewById<TextView>(Resource.Id.txtNome);
            btnConsumer.Click += BtnConsumer_Click;

        }

        private void BtnConsumer_Click(object sender, EventArgs e)
        {
            try
            {
                // API Consumer CPF

                consumer = new RestClient("https://qa.api-latam.whirlpool.com/v1.0/consumers");
                cpf = new RestRequest("/" + edtcpf.Text, Method.GET);
                cpf.AddHeader("Content-Type", "application/json; charset=utf-8");
                cpf.AddHeader("Authorization", "Bearer 70197e6c-d81b-384c-bb32-d69e8c10b101");
                mensagemConsumer = consumer.Execute(cpf);
                string nombre = Convert.ToString(mensagemConsumer.Content);
                Nome nome = new Nome();
                string json = JsonConvert.SerializeObject(mensagemConsumer.Content, Formatting.Indented);
                nome.firstName = mensagemConsumer.Content;

                Log.Info("info ",json);
                txtresposta.Text = json;

                //API Consumer Appliances
                orderId = new RestClient("https://qa.api-latam.whirlpool.com/v1.0/consumers/");
                requestorderId = new RestRequest("/"+ edtcpf.Text+ "/service-orders", Method.GET);
                requestorderId.AddHeader("Content-Type", "application/json; charset=utf-8");
                requestorderId.AddHeader("Authorization", "Bearer 70197e6c-d81b-384c-bb32-d69e8c10b101");
                answerorder = orderId.Execute(requestorderId);
                txtnome.Text = answerorder.Content;
                string respostaorder = Convert.ToString(answerorder);
                dynamic deserializado = JsonConvert.DeserializeObject(respostaorder);
            }
            catch (Exception)
            {
                throw;
            }
        }
    }
}

这是带有 get 和 set 的类

using System.Collections.Generic;
using System.Linq;
using System.Text;

using Android.App;
using Android.Content;
using Android.OS;
using Android.Runtime;
using Android.Views;
using Android.Widget;

namespace App4.Resources
{
    public class Nome
    {
         public string firstName { get; set;}
         public string lastName { get; set; }
    }
}

如何使用 JSON 序列化和反序列化它，该 JSON 使用依赖于 .Text 的 var，例如 edtcpf.Text 及其内容？

Answer 1

首先你需要检查这是否是一个有效的 json。根据我的分析，它有一些错误，例如姓氏。您可以使用本站验证https://jsonformatter.curiousconcept.com/

这个 json 的结构很奇怪，但是通过创建它所拥有的所有对象，您可以像这样使用它：

using System;
using System.Collections.Generic;
using Newtonsoft.Json;

namespace teste {
    class MainClass {
        public static void Main(string[] args) {

            var jsonString = @"{'consumerId':56704292158, 'categoryId':1, 'categoryDescription': 'Pessoa', 'firstName':'FN','lastName':'Last Name','fiscalDocuments':[{'fiscalDocument':{'documentType':'Brasil: nº CPF','cpf':199999992}}],'gender':'M','emailAddress':'r * ***@*.com','optIns':[{'optIn':{'brandName':'consul','acceptanceStatus':false}},{'optIn':{'brandName':'brastemp','acceptanceStatus':true}}],'communicationData':[{'communicationInfo':{'addressId':'2****03','phoneNumbers':[{'phoneNumber':{'phoneType':'mobilePhone','phoneNumber':5555555555}}],'streetAddress':'ANY STREET','streetNumber':123,'streetComplement':null,'streetDistrict':'ANY TOWN','cityName':'ANY CITY','stateCode':'XX','zipCode':'12345','locationReferences':[{'locationReference':'Mercado'}],'countryCode':'ZZ'}},{'communicationInfo':{'addressId':'2.563244','phoneNumbers':[{'phoneNumber':{'phoneType':'mobilePhone','phoneNumber':5555555555}},{'phoneNumber':{'phoneType':'homePhone','phoneNumber':555555555}}],'streetAddress':'ANY STREET','streetNumber':123,'streetComplement':'CASA','streetDistrict':'ANY TOWN','cityName':'ANY CITY','stateCode':'XX','zipCode':'12345','locationReferences':[{'locationReference':'Ao lado do deposito lua nova'}],'countryCode':'ZZ'}}]}";

            JsonSerializerSettings jsonSerializerSettings = new JsonSerializerSettings {
                NullValueHandling = NullValueHandling.Ignore,
                MissingMemberHandling = MissingMemberHandling.Ignore
            };

            Pessoa pessoa = JsonConvert.DeserializeObject<Pessoa>(jsonString, jsonSerializerSettings);

            Console.WriteLine(pessoa.FirstName);
            Console.WriteLine(pessoa.LastName);
        }
    }

    public class Pessoa {
        public long ConsumerId { get; set; }
        public int CategoryId { get; set; }
        public string CategoryDescription { get; set; }
        public string FirstName { get; set; }
        public string LastName { get; set; }
        public List<FiscalDocumentData> FiscalDocuments { get; set; }
        public string Gender { get; set; }
        public string EmailAddress { get; set; }
        public List<OptInData> OptIns { get; set; }
        public List<CommunicationData> CommunicationData { get; set; }
    }

    public class OptInData {
        public OptInInfo OptIn { get; set; }
    }

    public class OptInInfo {
        public string BrandName { get; set; }
        public bool AcceptanceStatus { get; set; }
    }

    public class FiscalDocumentData {
        public FiscalDocumentInfo FiscalDocument {get; set; }
    }

    public class FiscalDocumentInfo {
        public string DocumentType { get; set; }
        public long Cpf { get; set; }
    }

    public class CommunicationData {
        public CommunicationInfo CommunicationInfo { get; set; }
    }

    public class CommunicationInfo {
        public string AddressId { get; set; }
        public List<PhoneInfo> PhoneNumbers { get; set; }
        public string StreetAddress { get; set; }
        public int StreetNumber { get; set; }
        public string StreetComplement { get; set; }
        public string StreetDistrict { get; set; }
        public string CityName { get; set; }
        public string StateCode { get; set; }
        public string ZipCode { get; set; }
        public List<Reference> LocationReferences { get; set; }
        public string CountryCode { get; set; }
    }

    public class Reference {
        public string LocationReference { get; set; }
    }

    public class PhoneInfo {
        public PhoneNumberInfo PhoneNumber { get; set; }
    }

    public class PhoneNumberInfo {
        public string PhoneType { get; set; }
        public long PhoneNumber { get; set; }
    }
}

Answer 2

我只想从中获取 firstName 和 lastName 字段。

对于这个请求，你可以在你的项目中安装Newtonsoft.Json package，然后例如：

TextView tvfirst = FindViewById<TextView>(Resource.Id.firstname);
TextView tvlast = FindViewById<TextView>(Resource.Id.lastname);

Button btn = FindViewById<Button>(Resource.Id.btn);
btn.Click += (sender, e) =>
{
    var jsonstring = @"{'consumerId':56704292158, 'categoryId':1, 'categoryDescription': 'Pessoa', 'firstName':'FN','lastName':'Last Name','fiscalDocuments':[{'fiscalDocument':{'documentType':'Brasil: nº CPF','cpf':199999992}}],'gender':'M','emailAddress':'r****@*.com','optIns':[{'optIn':{'brandName':'consul','acceptanceStatus':false}},{'optIn':{'brandName':'brastemp','acceptanceStatus':true}}],'communicationData':[{'communicationInfo':{'addressId':'lalala','phoneNumbers':[{'phoneNumber':{'phoneType':'mobilePhone','phoneNumber':5555555555}}],'streetAddress':'ANY STREET','streetNumber':123,'streetComplement':null,'streetDistrict':'ANY TOWN','cityName':'ANY CITY','stateCode':'XX','zipCode':'12345','locationReferences':[{'locationReference':'Mercado'}],'countryCode':'ZZ'}},{'communicationInfo':{'addressId':2.563244E+7,'phoneNumbers':[{'phoneNumber':{'phoneType':'mobilePhone','phoneNumber':5555555555}},{'phoneNumber':{'phoneType':'homePhone','phoneNumber':555555555}}],'streetAddress':'ANY STREET','streetNumber':123,'streetComplement':'CASA','streetDistrict':'ANY TOWN','cityName':'ANY CITY','stateCode':'XX','zipCode':'12345','locationReferences':[{'locationReference':'Ao lado do deposito lua nova'}],'countryCode':'ZZ'}}]}";
    JToken token = JObject.Parse(jsonstring);

    var firstname = token.SelectToken("firstName");
    tvfirst.Text = firstname.ToString();
    var lastname = token.SelectToken("lastName");
    tvlast.Text = lastname.ToString();
};

我使用了两个TextView来显示名字和姓氏项目，并使用一个按钮来解析json字符串。

通过复制你的json文件，你的json文件中似乎有一个节点addressId的错误，你可以使用一些Json格式化程序来格式化你的json字符串，然后你就可以看到问题了。我将其更改为“lalala”以在我的示例中进行测试。