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
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;
}
}
}
2.JSON帮助类 核心代码
/// <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;
}
3.调用
//1.对象-->JSONUserInfo 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);
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"}]}
PS:关于json操作,这里再为大家推荐几款比较实用的json在线工具供大家参考使用:
在线JSON代码检验、检验、美化、格式化工具:
http://tools.jb51.net/code/json
JSON在线格式化工具:
http://tools.jb51.net/code/jsonformat
在线XML/JSON互相转换工具:
http://tools.jb51.net/code/xmljson
json代码在线格式化/美化/压缩/编辑/转换工具:
http://tools.jb51.net/code/jsoncodeformat
在线json压缩/转义工具:
http://tools.jb51.net/code/json_yasuo_trans
更多关于C#相关内容还可查看本站专题:《C#字符串操作技巧总结》、《C#常见控件用法教程》、《WinForm控件用法总结》、《C#程序设计之线程使用技巧总结》、《C#中XML文件操作技巧汇总》、《C#数据结构与算法教程》、《C#数组操作技巧总结》及《C#面向对象程序设计入门教程》
希望本文所述对大家C#程序设计有所帮助。