本文实例讲述了C#实现JSON和对象之间互相转换功能。分享给大家供大家参考，具体如下：
1.首先是声明用户信息对象，DataContract修饰类，表示可以被解析成JSON，DataMember修饰属性，Order表示 解析的顺序，另外Lover是数组列表，表示女朋友个数
Address 表示送货地址，DailyRecord 表示日常记录
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using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Runtime.Serialization;
namespace FunctionTest.Model
{
[DataContract]
public class UserInfo
{
[DataMember(Order =0)]
public string UserName { get; set; }
[DataMember(Order = 1)]
public int Age { get; set; }
[DataMember(Order = 2)]
public int Gender { get; set; }
[DataMember(Order =3)]
public List<string> Lover { get; set; }
[DataMember(Order = 4)]
public ContactAddress Address { get; set; }
[DataMember(Order = 5)]
public Dictionary<string, string> DailyRecord {
get; set;
}
}
[DataContract]
public class ContactAddress
{
[DataMember(Order =0)]
public string Province { get; set; }
[DataMember(Order = 1)]
public string City { get; set; }
[DataMember(Order = 2)]
public string Country { get; set; }
[DataMember(Order = 3)]
public string Details { get; set; }
}
}
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2.JSON帮助类 核心代码
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/// <summary>
/// Json转换成对象
/// </summary>
/// <typeparam name="T"></typeparam>
/// <param name="jsonText"></param>
/// <returns></returns>
public static T JsonToObject<T>(string jsonText)
{
DataContractJsonSerializer s = new DataContractJsonSerializer(typeof(T));
MemoryStream ms = new MemoryStream(Encoding.UTF8.GetBytes(jsonText));
T obj = (T)s.ReadObject(ms);
ms.Dispose();
return obj;
}
/// <summary>
/// 对象转换成JSON
/// </summary>
/// <typeparam name="T"></typeparam>
/// <param name="obj"></param>
/// <returns></returns>
public static string ObjectToJSON<T>(T obj)
{
DataContractJsonSerializer serializer = new DataContractJsonSerializer(typeof(T));
string result = string.Empty;
using (MemoryStream ms = new MemoryStream())
{
serializer.WriteObject(ms, obj);
ms.Position = 0;
using (StreamReader read = new StreamReader(ms))
{
result = read.ReadToEnd();
}
}
return result;
}
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3.调用
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//1.对象-->JSON
UserInfo info = new UserInfo
{
Age = 10,
Gender = 1,
UserName = "刘德华",
Lover = new List<string> { "美女1", "美女2", "美女3" },
Address = new ContactAddress
{
Province = "湖南省",
City = "长沙市",
Country = "望城县",
Details = "某旮旯快递找不到的地方"
},
DailyRecord = new Dictionary<string, string> { { "星期一", "吃饭" }, { "星期二", "洗衣服" }, { "星期三", "好事情" } }
};
string json = ObjectToJSON<UserInfo>(info);
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4.反序列化后的结果
复制代码 代码如下:
{"UserName":"刘德华","Age":10,"Gender":1,"Lover":["美女1","美女2","美女3"],"Address":{"Province":"湖南省","City":"长沙市","Country":"望城县","Details":"某旮旯快递找不到的地方"},"DailyRecord":[{"Key":"星期一","Value":"吃饭"},{"Key":"星期二","Value":"洗衣服"},{"Key":"星期三","Value":"好事情"}]}
希望本文所述对大家C#程序设计有所帮助。
原文链接：http://www.cnblogs.com/HCCZX/p/5238556.html