JavaScript反序列化无法反序列化JSON对象

Question

我正在 ASP.NET 应用程序中通过 AJAX 发布 JSON 对象。

{
    "SaveData" : "{
       "TransactionType":"2",
       "Date":"8/10/2016",
       "BankAccountID":"449",
       "PaidTo":"Cash",
       "Amount" :"1551",
       "CheckNumber":"51451",
       "SupportingDocNo":"51521",
       "Remarks":"This is a remarks & this contains special character",
       "CheckPaymentID":0
    }", 
    "Type" : "Save"
}

在服务器端（我正在使用处理程序）我将 ContentType 设置为 application/json 并将 SaveData 对象反序列化为

context.Request.ContentType = "application/json";
var data = new JavaScriptSerializer()
           .Deserialize<CheckPaymentsService>(context.Request["SaveData"]);

通过这样做，我的 SaveData 对象字符串在备注属性处意外终止，因为它包含 & 符号。

我应该如何处理这个特殊字符和其他特殊字符，如<、>等？

Answer 1

您提供的 json 无效。

这是正确的版本（您可以在 http://jsonlint.com/ 上查看）：

{
    "SaveData": {
        "TransactionType": "2",
        "Date": "8/10/2016",
        "BankAccountID": "449",
        "PaidTo": "Cash",
        "Amount": "1551",
        "CheckNumber": "51451",
        "SupportingDocNo": "51521",
        "Remarks": "This is a remarks & this contains special character",
        "CheckPaymentID": 0
    },
    "Type": "Save"
}

此外 json 中的非法字符是

‘ single quote
” quote
\ backslash

Answer 2

我认为你需要逃离你的 json。以下代码对我来说工作正常。

using System;
using System.Web.Script.Serialization;

namespace ConsoleApplication1
{
    class Program
    {
        private const string Json = @"{
        ""SaveData"": {
        ""TransactionType"": ""2"",
        ""Date"": ""8/10/2016"",
        ""BankAccountID"": ""449"",
        ""PaidTo"": ""Cash"",
        ""Amount"": ""1551"",
        ""CheckNumber"": ""51451"",
        ""SupportingDocNo"": ""51521"",
        ""Remarks"": ""This is a remarks & this contains special character"",
        ""CheckPaymentID"": 0
    },
    ""Type"": ""Save""}";

        static void Main(string[] args)
        {
            try
            {
                var data = new JavaScriptSerializer().Deserialize<CheckPaymentsService>(Json);
            }
            catch (Exception e)
            {
                Console.WriteLine(e);
            }
        }
    }

    public class CheckPaymentsService
    {
        public SaveData SaveData { get; set; }
        public string Type { get; set; }
    }

    public class SaveData
    {        
        public int TransactionType { get; set; }
        public DateTime Date { get; set; }
        public int BankAccountID { get; set; }
        public string PaidTo { get; set; }
        public int Amount { get; set; }
        public int CheckNumber { get; set; }
        public int SupportingDocNo { get; set; }
        public string Remarks { get; set; }
        public int CheckPaymentID { get; set; }
    }
}

JavaScript反序列化无法反序列化JSON对象

JavaScript Deserialize could not Deserialize JSON Object

c#

asp.net

ajax

asp.net-ajax

c#-4.0