C#将对象序列化成JSON字符串

public string GetJsonString()  {      List
     
       products = new List
      
       (){      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;      return new JavaScriptSerializer().Serialize(productlist));  }   public class Product  {      public string Name { get; set; }      public double Price { get; set; }  }   public class ProductList  {      public List
       
         GetProducts { get; set; }  }
       
      
     

这里主要是使用JavaScriptSerializer来实现序列化操作，这样我们就可以把对象转换成Json格式的字符串，生成的结果如下：

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

如何将Json字符串转换成对象使用呢？

在实际开发中，经常有可能遇到用JS传递一个Json格式的字符串到后台使用，如果能自动将字符串转换成想要的对象，那进行遍历或其他操作时，就方便多了。那具体是如何实现的呢？

public static List
     
       JSONStringToList
      
       (this string JsonStr)  {      JavaScriptSerializer Serializer = new JavaScriptSerializer();      List
       
         objs = Serializer.Deserialize
        
         
          >(JsonStr);      return objs;  }   public static T Deserialize
          
           (string json) { T obj = Activator.CreateInstance
           
            (); using (MemoryStream ms = new MemoryStream(Encoding.UTF8.GetBytes(json))) { DataContractJsonSerializer serializer = new DataContractJsonSerializer(obj.GetType()); return (T)serializer.ReadObject(ms); } } string JsonStr = "[{Name:'苹果',Price:5.5},{Name:'橘子',Price:2.5},{Name:'柿子',Price:16}]"; List
            
              products = new List
             
              (); products = JSONStringToList
              
               (JsonStr); foreach (var item in products) { Response.Write(item.Name + ":" + item.Price + "
               
"); } public class Product { public string Name { get; set; } public double Price { get; set; } }
              
             
            
           
          
         
        
       
      
     

在上面的例子中，可以很方便的将Json字符串转换成List对象