• C# JSON字符串序列化与反序列化常见模型举例


    C#中实体转Json常用的类JavaScriptSerializer,该类位于using System.Web.Script.Serialization;命名空间中,添加引用system.web.extensions。常见序列化和反序列化的方法如下:

    public static List<T> JSONStringToList<T>(this string JsonStr)  
    {  
        JavaScriptSerializer Serializer = new JavaScriptSerializer();  
        List<T> objs = Serializer.Deserialize<List<T>>(JsonStr);  
        return objs;  
    }  
     
    public static T Deserialize<T>(string json)  
    {  
        T obj = Activator.CreateInstance<T>();  
        using (MemoryStream ms = new MemoryStream(Encoding.UTF8.GetBytes(json)))  
        {  
            DataContractJsonSerializer serializer = new DataContractJsonSerializer(obj.GetType());  
            return (T)serializer.ReadObject(ms);  
        }  
    }  
     

    C#中实体转JSON常用的实例情况:

    第一种JSON格式:

    {"Name":"苹果","Price":5.5}

    该类型的json,对应的实体就是一个类,里面两个属性name和price,对应如下:

    public class Product  
    {  
        public string Name { get; set; }  
        public double Price { get; set; }  
    }  

    第二种JSON格式:

    {"GetProducts":[{"Name":"苹果","Price":5.5},{"Name":"橘子","Price":2.5},{"Name":"柿子","Price":16}]} 

    对应的类封装如下:

    public class Product  
    {  
        public string Name { get; set; }  
        public double Price { get; set; }  
    }  
     
    public class ProductList  
    {  
        public List<Product> GetProducts { get; set; }  
    } 

    封装的时候,只需要封装ProductList实例;

    第三种:
    {"GetProducts":["5841526","985423","23366368"]} 

    这种json对应的C#类如下:

    public class ProductList  
    {  
        public List<string> GetProductsname=new  List<string>(
        ){"5841526","985423","23366368"};
       
    } 

    第四种:

    {"GetProducts":[{"Name":"5841526"},{"Price",985423}]} 

    这种json有点难度,但是我们c#也能转化,对应的C#类如下:

     public class Product
        {
            public string Name { get; set; }
            
        }
    
        public class Pnum
        {
            public double Price { get; set; }  
        }
    
        public class ProductList
        {
            public List<object> GetProducts { get; set; }
        } 
    
         public static string GetJsonString()
            {
                List<object> products = new List<object>()
                {
                    new Product(){Name="苹果"},
                    new Pnum(){ Price=3.2}
                };
                ProductList pl = new ProductList() { GetProducts = products };
                return new JavaScriptSerializer().Serialize(pl);
            }

    这就是我总结的常见四种json对应的序列化方式。JavaScriptSerializer是一款不错的json序列化的工具,用好了就是神器,晚安!

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  • 原文地址:https://www.cnblogs.com/xibei666/p/4678918.html
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