C#将对象序列化成JSON字符串
- public string GetJsonString()
- {
- 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;
- return new JavaScriptSerializer().Serialize(productlist));
- }
- public class Product
- {
- public string Name { get; set; }
- public double Price { get; set; }
- }
- public class ProductList
- {
- public List<Product> 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<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);
- }
- }
- 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);
- 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; }
- }
在上面的例子中，可以很方便的将Json字符串转换成List对象，操作的时候就方便多了~