一、JSON使用JsonPropertyAttribute重命名属性名
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using GongHuiNewtonsoft.Json;
namespace JSONDemo
{
public class Movie
{
[JsonProperty("name")]
public string Name { get; set; }
[JsonProperty("Chinese Director")]
public string Director { get; set; }
public int ReleaseYear { get; set; }
}
}
二、JSON使用JsonPropertyAttribute序列化升序排序属性
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using GongHuiNewtonsoft.Json;
namespace JSONDemo
{
public class Movie
{
[JsonProperty(Order=4)]
public string Name { get; set; }
[JsonProperty(Order=0)]
public string Director { get; set; }
public int ReleaseYear { get; set; }
[JsonProperty(Order=-3)]
public string ChiefActor { get; set; }
[JsonProperty(Order=2)]
public string ChiefActress { get; set; }
}
三、JSON使用JsonPropertyAttribute反序列化属性时，Required指定属性性质
.创建一个Movie对象，给属性添加JsonProperty，并指定其Required的性质。属性Name必须有值，DateTime可以为空
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using GongHuiNewtonsoft.Json;
namespace JSONDemo
{
public class Movie
{
[JsonProperty(Required=Required.Always)]
public string Name { get; set; }
[JsonProperty(Required = Required.AllowNull)]
public DateTime? ReleaseDate { get; set; }
public string Director { get; set; }
}
}
四、JSON使用JsonPropertyAttribute序列化引用类型集合
1.创建一个Director对象，并声明一个本身类型的属性，指定JsonProperty中的IsReference为true.
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using GongHuiNewtonsoft.Json;
namespace JSONDemo
{
public class Director
{
public string Name { get; set; }
[JsonProperty(IsReference=true)]
public Director ExecuteDir { get; set; }
}
}
2.创建一个Movie对象，声明一个Director集合的属性，指定JsonProperty中的IsReference为true.
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using GongHuiNewtonsoft.Json;
namespace JSONDemo
{
public class Movie
{
public string Name { get; set; }
[JsonProperty(ItemIsReference=true)]
public IList<Director> Directors { get; set; }
}
}
3.序列化对象
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Data;
using GongHuiNewtonsoft.Json;
using GongHuiNewtonsoft.Json.Serialization;
using GongHuiNewtonsoft.Json.Converters;
namespace JSONDemo
{
class Program
{
static void Main(string[] args)
{
Director dir = new Director
{
Name = "冯小刚"
};
Director dir1 = new Director
{
Name = "张艺谋",
ExecuteDir = dir
};
Movie m = new Movie
{
Name = "满城尽带黄金甲",
Directors = new List<Director>
{
dir,
dir1
}
};
string json = JsonConvert.SerializeObject(m, Formatting.Indented);
Console.WriteLine(json);
}
}
}
五、JSON使用JsonPropertyAttribute序列化忽略属性null
1.创建一个Movie对象，并在属性上指定JsonProperty，添加NullValueHandling，忽略null
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using GongHuiNewtonsoft.Json;
namespace JSONDemo
{
public class Movie
{
public string Name { get; set; }
public string Director { get; set; }
[JsonProperty(NullValueHandling=NullValueHandling.Ignore)]
public DateTime? LaunchDate { get; set; }
}
}
2.实例化对象Movie对象，然后序列化
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Data;
using GongHuiNewtonsoft.Json;
using GongHuiNewtonsoft.Json.Serialization;
using GongHuiNewtonsoft.Json.Converters;
namespace JSONDemo
{
class Program
{
static void Main(string[] args)
{
Movie m = new Movie
{
Name = "爱情呼叫转移",
Director = "张建亚"
};
string json = JsonConvert.SerializeObject(m, Formatting.Indented);
Console.WriteLine(json);
}
}
}
