JSON中JObject和JArray,JValue序列化(Linq)

一、JObject和JArray序列化

1.实例化JArray和JObject，然后序列化

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Data;
using GongHuiNewtonsoft.Json.Linq;

namespace JSONDemo
{
    class Program
    {
        static void Main(string[] args)
        {
            JArray array = new JArray();
            array.Add("GongHui Linq");
            array.Add(new DateTime(2015, 12, 14));

            JObject o = new JObject();
            o["myArray"] = array;

            string json = o.ToString();

            Console.WriteLine(json);
        }
    }
}

2.运行结果

  

二、JObject和JArray使用C#集合初始化语法序列化

1.使用C#集合初始化语法,并序列化

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Data;
using GongHuiNewtonsoft.Json.Linq;

namespace JSONDemo
{
    class Program
    {
        static void Main(string[] args)
        {
            JObject o = new JObject
            {
                {"CPU","Intel"},
                {"Memory",2048},
                {
                    "Drives",new JArray
                    {
                        "DVD",
                        "U盘"
                    }
                }
            };

            Console.WriteLine(o.ToString());
        }
    }
}

2.运行结果

三、使用Linq创建JObject和JArray序列化

1.创建一个Post对象，添加构造函数。

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;

namespace JSONDemo
{
    public class Post
    {
        public string Title { get; set; }
        public string Description { get; set; }
        public string Link { get; set; }
        public IList<string> Categories { get; set; }

        public Post()
        {
            Categories = new List<string>();
        }
    }
}

2.实例化Post，然后声明一个对象列表。

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Data;
using GongHuiNewtonsoft.Json.Linq;

namespace JSONDemo
{
    class Program
    {
        static void Main(string[] args)
        {
            Post p1=new Post();
            p1.Title="张五";
            p1.Description="张五的五一";
            p1.Link="http://www.zhuangwu.com";
            p1.Categories.Add("天地不仁");

            IList<Post> posts=new List<Post>();
            posts.Add(p1);

            JObject o = new JObject(
                new JProperty("channel",
                    new JObject(
                        new JProperty("title","龚辉"),
                        new JProperty("link","http://blog.csdn.net/lovegonghui/article/details/50293629"),
                        new JProperty("description","龚辉的博客"),
                        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("categories",
                                        new JArray(
                                            from c in p.Categories
                                            select new JValue(c)))
                                        )
                                )
                            )
                    )
                )
            );
            Console.WriteLine(o.ToString());
        }
    }
}

3.运行的结果

四、使用C#的dynamic序列化

1.创建一个对象Address.

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.ComponentModel;

namespace JSONDemo
{
    public class Address
    {
        public string Province { get; set; }
        public string City { get; set; }
        public string County { get; set; }
        public IList<string> Villages { get; set; }
    }
}

2.序列化

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Data;
using GongHuiNewtonsoft.Json.Linq;

namespace JSONDemo
{
    class Program
    {
        static void Main(string[] args)
        {

            dynamic address = new JObject();
            address.Province = "GuangDong";
            address.City = "GuangZhou";
            address.County = "PanYu";
            address.Villages = new JArray("大龙村", "小龙村");

            Console.WriteLine(address.ToString());
        }
    }
}

3.运行的结果

五、使用JTokenWriter序列化

1.首先使用JTokenWriter写入属性与值，数组。

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Data;
using GongHuiNewtonsoft.Json.Linq;

namespace JSONDemo
{
    class Program
    {
        static void Main(string[] args)
        {
            JTokenWriter writer = new JTokenWriter();
            writer.WriteStartObject();
            writer.WritePropertyName("Title");
            writer.WriteValue("薄谷开来案???");

            writer.WritePropertyName("Detail");

            writer.WriteStartArray();
            writer.WriteValue("Yes");
            writer.WriteValue("No");
            writer.WriteValue("Unknown");
            writer.WriteEndArray();

            writer.WriteEndObject();

            JObject o = (JObject)writer.Token;
            Console.WriteLine(o.ToString());
        }
    }
}

2.运行的结果

  

六、使用JToken.FromObject(object)把.NET值转换成JSON中Linq序列化

1.先创建一个Address对象.

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.ComponentModel;

namespace JSONDemo
{
    public class Address
    {
        public string Province { get; set; }
        public string City { get; set; }
        public string County { get; set; }
        public IList<string> Villages { get; set; }
    }
}

2.序列化操作

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Data;
using GongHuiNewtonsoft.Json.Linq;

namespace JSONDemo
{
    class Program
    {
        static void Main(string[] args)
        {
            JValue i = (JValue)JToken.FromObject(123);
            Console.WriteLine(i.Type);
            Console.WriteLine(i.ToString());

            JValue s = (JValue)JToken.FromObject("GongHui");
            Console.WriteLine(s.Type);
            Console.WriteLine(s.ToString());

            Address address = new Address
            {
                City = "GuangZhou",
                Province = "GuangDong",
                County = "ShiQiao",
                Villages = new List<string>
                {
                    "维和",
                    "防稳"
                }
            };

            JObject o = (JObject)JToken.FromObject(address);
            Console.WriteLine(o.ToString());
        }
    }
}

3.运行结果

七、匿名类型创建一个JObject序列化

1.先创建一个Post对象

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;

namespace JSONDemo
{
    public class Post
    {
        public string Title { get; set; }
        public string Description { get; set; }
        public string Link { get; set; }
        public IList<string> Categories { get; set; }
    }
}

2.实例化对象Post,然后使用JObject.FromObject(object)创建一个匿名类型对象channel

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Data;
using GongHuiNewtonsoft.Json.Linq;

namespace JSONDemo
{
    class Program
    {
        static void Main(string[] args)
        {
            List<Post> posts = new List<Post>
            {
                new Post
                {
                    Title="匿名类型",
                    Description="匿名类型创建一个JObject",
                    Link="http://write.blog.csdn.net/postedit/50293629",
                    Categories=new List<string>
                    {
                        "JObject",
                        "匿名类型"
                    }
                }
            };

            JObject o = JObject.FromObject(new
            {
                channel = new
                {
                    title = "Linq的测试",
                    link = "http://www.microsoft/Linq.com",
                    description = "这是JOSN在Linq在的测试",
                    item =
                     from p in posts
                     orderby p.Title
                     select new
                     {
                         title=p.Title,
                         link=p.Link,
                         description=p.Description,
                         categories=p.Categories
                     }
                }
            }
            );

            Console.WriteLine(o.ToString());
        }
    }
}

3.运行的结果

JSON源代码下载地址：http://download.csdn.net/detail/lovegonghui/9342751