json.net

json.net 是一个用C#写的Json的操作类库，可以在http://json.codeplex.com/ 下载

对象序列化为json字符串

public class Product
{
    public string Name { get; set; }
    public DateTime Expiry { get; set; }
    public decimal Price { get; set;}
    public string[] Sizes { get; set; }
}

static void Main(string[] args)
{
    Product product = new Product() { 
       Name ="android",
       Expiry =new DateTime (),
       Price =2000,
       Sizes =new  string[]{"1.5","2.2","4.1"}
    };

    Console.WriteLine(JsonConvert.SerializeObject(product));

    Console.Read();
}

输出 ：

{"Name":"android","Expiry":"\/Date(-62135596800000 0800)\/","Price":2000.0,"Size
s":["1.5","2.2","4.1"]}

设置时间类型的格式 两个用来序列化时间的对象IsoDateTimeConverter JavaScriptDateTimeConverter

Console.WriteLine(JsonConvert .SerializeObject (product,new IsoDateTimeConverter()));

Console.WriteLine(JsonConvert.SerializeObject(product, new JavaScriptDateTimeConverter()));

输出

{"Name":"android","Expiry":"2000-09-09T00:00:00","Price":2000.0,"Sizes":["1.5","
2.2","4.1"]}
{"Name":"android","Expiry":new Date(968428800000),"Price":2000.0,"Sizes":["1.5",
"2.2","4.1"]}

自定义输出时间格式

IsoDateTimeConverter iso = new IsoDateTimeConverter();
 iso.DateTimeFormat = "yyyy-MM-dd";//设置事件的格式

Console.WriteLine(JsonConvert.SerializeObject(product, iso));

输出

{"Name":"android","Expiry":"2000-09-09","Price":2000.0,"Sizes":["1.5","2.2","4.1
"]}

反序列化

Product p=(Product)JsonConvert.DeserializeObject(str, typeof(Product));

创建Jobject对象

JObject rss =
  new JObject(
    new JProperty("channel",
      new JObject(
        new JProperty("title", "James Newton-King"),
        new JProperty("link", "http://james.newtonking.com"),
        new JProperty("description", "James Newton-King's blog."),
        new JProperty("item",
          new JArray(
            from p in posts
            orderby p.Title
            select new JObject(
              new JProperty("title", p.Title),
              new JProperty("description", p.Description),
              new JProperty("link", p.Link),
              new JProperty("category",
                new JArray(
                  from c in p.Categories
                  select new JValue(c)))))))));
 
Console.WriteLine(rss.ToString());

直接用对象创建Jobject对象

JObject obj = JObject.FromObject(new Product()
             {
                 Name = "android",
                 Expiry = new DateTime(2000, 9, 9),
                 Price = 2000,
                 Sizes = new string[] { "1.5", "2.2", "4.1" }
             });