JSON中JObject和JArray,JValue序列化(Linq)

http://blog.csdn.net/lovegonghui/article/details/50293629

一、JObject和JArray序列化

1.实例化JArray和JObject，然后序列化

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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

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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。

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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。

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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.

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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

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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。

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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.

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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

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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

[csharp] view plaincopy

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

[csharp] view plaincopy

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

转载于:https://www.cnblogs.com/zcm123/p/6144036.html