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~