C#实现JSON和对象之间互相转换功能示例

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; }  }}

/// <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;}

//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);