Json的序列化与反序列化

C#将Json字符串反序列化成List对象类集合

using System.IO;
using System.Web.Script.Serialization;
using System.Runtime.Serialization.Json;
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);
        }
}

好了，我们来测试下

string JsonStr = "[{Name:'苹果',Price:5.5},{Name:'橘子',Price:2.5},{Name:'柿子',Price:16}]";
List<Product> products = new List<Product>();
products = JSONStringToList<Product>(JsonStr);
//Response.Write(products.Count());
foreach (var item in products)
{
   Response.Write(item.Name + ":" + item.Price + "<br />");
}
public class Product
{
   public string Name { get; set; }
   public double Price { get; set; }
}

结果：

苹果:5.5
橘子:2.5
柿子:16

 

==============================

C#将对象序列化成JSON字符串

 

using System.Web.Script.Serialization;
public void ProcessRequest(HttpContext context)
        {
            context.Response.ContentType = "text/plain";
 
            List<Product> products = new List<Product>(){
            new Product(){Name="苹果",Price=5.5},
            new Product(){Name="橘子",Price=2.5},
new Product(){Name="干柿子",Price=16.00}
            };
            ProductList productlist = new ProductList();
            productlist.GetProducts = products;
            context.Response.Write(new JavaScriptSerializer().Serialize(productlist));
        }
public bool IsReusable
{
get
{
                return false;
}
}
 
        public class Product
        {
            public string Name { get; set; }
            public double Price { get; set; }
        }
 
        public class ProductList
        {
            public List<Product> GetProducts { get; set; }
        }
 

 

生成的JSON结果如下：

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

 

来源：
http://www.rczjp.cn/HTML/110126/20110226120213.html
http://www.rczjp.cn/HTML/101201/20104701014751.html