前言
序列化大家都很常见，就是把一个对象序列化成一串Json 字符串。最近对接第三方的时候遇到了一个情况，我们C#都是用骆驼命名，而他们呢需要接收的Json字符串的 key 是 小写 的这时候要怎么处理呢！话不多说直接上代码开干
定义一个 Map 类
using Newtonsoft.Json;
using System;
namespace JsonLower
{
public class Map
{
[JsonProperty("id")]
public Guid ID { get; set; }
[JsonProperty("code")]
public string Code { get; set; }
[JsonProperty("name")]
public string Name { get; set; }
}
}
主程序初始化数据转Json字符串
using Newtonsoft.Json;
using System;
using System.Collections.Generic;
namespace JsonLower
{
class Program
{
static void Main(string[] args)
{
List<Map> maps = new List<Map>()
{
new Map{
ID = Guid.NewGuid(),
Code = "MD0001",
Name = "小明"
},
new Map{
ID = Guid.NewGuid(),
Code = "MD0002",
Name = "小红"
},
new Map{
ID = Guid.NewGuid(),
Code = "MD0003",
Name = "张三"
},
};
var jsonStr = JsonConvert.SerializeObject(maps);
Console.WriteLine(jsonStr);
Console.ReadLine();
}
}
}
看下效果
在属性上使用了 JsonProperty 特性，使得序列化时根据 JsonProperty 特性传入的字符串进行序列化，那我们有时候想忽略掉 JsonProperty 特性
using Newtonsoft.Json;
using Newtonsoft.Json.Serialization;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
namespace JsonLower
{
/// <summary>
/// Json 序列化
/// </summary>
public class JsonHelper
{
/// <summary>
/// 序列化是否按照JsonProperty显示Key
/// </summary>
/// <param name="obj"></param>
/// <param name="isJsonProperty"></param>
/// <returns></returns>
public static string SerializeObject(object obj, bool isJsonProperty = false)
{
var jsonSettings = new JsonSerializerSettings
{
DefaultValueHandling = DefaultValueHandling.Ignore
};
if (isJsonProperty)
jsonSettings.ContractResolver = new LongNameContractResolver();
return JsonConvert.SerializeObject(obj, jsonSettings);
}
}
public class LongNameContractResolver : DefaultContractResolver
{
protected override IList<JsonProperty> CreateProperties(Type type, MemberSerialization memberSerialization)
{
IList<JsonProperty> list = base.CreateProperties(type, memberSerialization);
foreach (JsonProperty prop in list)
{
prop.PropertyName = prop.UnderlyingName;
}
return list;
}
}
}
修改主程序代码
using Newtonsoft.Json;
using System;
using System.Collections.Generic;
namespace JsonLower
{
class Program
{
static void Main(string[] args)
{
List<Map> maps = new List<Map>()
{
new Map{
ID = Guid.NewGuid(),
Code = "MD0001",
Name = "小明"
},
new Map{
ID = Guid.NewGuid(),
Code = "MD0002",
Name = "小红"
},
new Map{
ID = Guid.NewGuid(),
Code = "MD0003",
Name = "张三"
},
};
//未忽略
{
var jsonStr = JsonConvert.SerializeObject(maps);
Console.WriteLine("未忽略JsonProperty:" + jsonStr);
}
{
var jsonStr = JsonHelper.SerializeObject(maps,true);
Console.WriteLine("忽略JsonProperty:" + jsonStr);
}
Console.ReadLine();
}
}
}
看一下效果图
