Json序列化器为序列化及反序列化集合对象提供了良好的支持.

->Serializing

为了序列化一个集合---一个泛型的list,array,dictionary,或者自定义集合---简单地调用序列化器，使用您想要进行序列化的集合对象作为参数，Json.Net会序列化集合以及所有它包含的值。

示例：

public class Product
        {
            public string Name { get;    set; }
            public decimal Price { get;    set; }
            [JsonConverter(typeof(IsoDateTimeConverter))]
            public DateTime ExpiryDate {    get; set; }
        }

测试:

  Product p1 = new Product()
                {
                    Name = "Product    1",Price = 99.95m,ExpiryDate = new    DateTime(2010,12,19,DateTimeKind.Utc)
                };
                Product p2 = new Product
                {
                    Name = "Product    2",Price = 12.50m,ExpiryDate = new    DateTime(2011,1,DateTimeKind.Utc)
                };
                List<Product>    products = new List<Product>();
                products.Add(p1);
                products.Add(p2);
    
                string json =    JsonConvert.SerializeObject(products,Formatting.Indented);
                Console.WriteLine(json);

输出结果：

[
{
"Name": "Product 1",
"Price": 99.95,
"ExpiryDate": "2010-12-19T00:00:00Z"
},
{
"Name": "Product 2",
"Price": 12.50,
"ExpiryDate": "2011-01-01T00:00:00Z"
}
]

->Deserializing

为了反序列化Json到一个.Net集合中，只要指定一个您想要反序列化的集合类型就可以了，Json.Net支持多种类型的集合.

示例:

 string json2 = @"[
                                  {
                                       ""Name"": ""Product 1"",""ExpiryDate"":    ""2010-12-19T00:00:00Z"",""Price"": 99.95,""Sizes"": null
                                  },{
                                       ""Name"": ""Product 2"",""ExpiryDate"":    ""2011-01-01T00:00:00Z"",""Price"":    12.50,""Sizes"": null
                                  }
                                ]";
                List<Product>    productList =    JsonConvert.DeserializeObject<List<Product>>(json2);
                Console.WriteLine(productList.Count);//2
                Product product1 =    productList[0];
                Console.WriteLine(product1.Name);//Product 1

->Deserializing Dictionaries

使用Json.Net你也可以反序列化一个Json对象到一个.Net的泛型Dictionary中.Json对象的属性名和属性值将会被添加到Dictionary中.

示例:

  string jsonDictionary =    @"{""key1"":""value1"",""key2"":""value2""}";
  Dictionary<string,string> dic = JsonConvert.DeserializeObject<Dictionary<string,string>>(jsonDictionary);
  Console.WriteLine(dic.Count);//2
  Console.WriteLine(dic["key1"]);//value1