asp.netjson格式怎么轉換

在ASP.NET中，可以使用JavaScriptSerializer類來將對象轉換為JSON字符串，以及將JSON字符串轉換為對象。以下是一個示例代碼：

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

public class Person
{
    public string Name { get; set; }
    public int Age { get; set; }
}

public class JsonExample
{
    public static void Main()
    {
        Person person = new Person { Name = "John", Age = 30 };

        // 將對象轉換為JSON字符串
        JavaScriptSerializer serializer = new JavaScriptSerializer();
        string jsonString = serializer.Serialize(person);
        Console.WriteLine("JSON String: " + jsonString);

        // 將JSON字符串轉換為對象
        Person deserializedPerson = serializer.Deserialize<Person>(jsonString);
        Console.WriteLine("Deserialized Object: " + serializer.Serialize(deserializedPerson));
    }
}

輸出結果：

JSON String: {"Name":"John","Age":30}
Deserialized Object: {"Name":"John","Age":30}

請注意，JavaScriptSerializer類在.NET Framework中可用，但在.NET Core和.NET 5及更高版本中已被棄用。在這些新版本中，可以使用System.Text.Json命名空間中的JsonSerializer類來進行JSON序列化和反序列化。以下是一個使用System.Text.Json的示例代碼：

using System;
using System.Text.Json;

public class Person
{
    public string Name { get; set; }
    public int Age { get; set; }
}

public class JsonExample
{
    public static void Main()
    {
        Person person = new Person { Name = "John", Age = 30 };

        // 將對象轉換為JSON字符串
        string jsonString = JsonSerializer.Serialize(person);
        Console.WriteLine("JSON String: " + jsonString);

        // 將JSON字符串轉換為對象
        Person deserializedPerson = JsonSerializer.Deserialize<Person>(jsonString);
        Console.WriteLine("Deserialized Object: " + JsonSerializer.Serialize(deserializedPerson));
    }
}

輸出結果與前面的示例相同：

JSON String: {"Name":"John","Age":30}
Deserialized Object: {"Name":"John","Age":30}