newtonsoft.json 序列化和反序列化

using System; using System.Collections.Generic; using System.Linq; using System.Text; using System.IO; using System.Runtime.Serialization; using Newtonsoft.Json; using Newtonsoft.Json.Linq; using Newtonsoft.Json.Converters;

namespace ConsoleJsonDemo {     class Program {         static void Main(string[] args) {           //  JsonConvertDemo();            JsonConvertLinqDemo();             Console.ReadLine();          }                 public static void JsonConvertDemo()      {          User user = new User { UserId = 1, UserName = "李刚", CreateDate = DateTime.Now.AddYears(-30), Birthday = DateTime.Now.AddYears(-50), Priority = Priority.BelowNormal, Salary = 5000 };          //JsonConvert类在Newtonsoft.Json.Net35.dll中，注意到http://www.codeplex.com/json/下载这个dll并添加这个引用          //JSON序列化          string result = JsonConvert.SerializeObject(user);          Console.WriteLine("使用JsonConvert序列化后的结果：{0},长度：{1}", result, result.Length);          //JSON反序列化          user = JsonConvert.DeserializeObject<User>(result);          Console.WriteLine("使用JsonConvert反序列化后的结果：UserId:{0},UserName:{1},CreateDate:{2},Priority:{3}", user.UserId, user.UserName, user.CreateDate, user.Priority);      }        public static void JsonConvertLinqDemo()      {          User user = new User { UserId = 1, UserName = "周公", CreateDate = DateTime.Now.AddYears(-8), Birthday = DateTime.Now.AddYears(-32), Priority = Priority.Lowest, Salary = 500, Urls = new List<string> { "http://zhoufoxcn.blog.51cto.com", "http://blog.csdn.net/zhoufoxcn" } };          //JsonConvert类在Newtonsoft.Json.Net35.dll中，注意到http://www.codeplex.com/json/下载这个dll并添加这个引用          //JSON序列化          string result = JsonConvert.SerializeObject(user);          Console.WriteLine("使用JsonConvert序列化后的结果：{0},长度：{1}", result, result.Length);          //使用Linq to JSON          JObject jobject = JObject.Parse(result);          JToken token = jobject["Urls"];          List<string> urlList = new List<string>();          foreach (JToken t in token)          {              urlList.Add(t.ToString());          }          Console.Write("使用Linq to JSON反序列化后的结果：[");          //for (int i = 0; i < urlList.Count - 1;i++ )          //{          //    Console.Write(urlList[i] + ",");          //}          //Console.WriteLine(urlList[urlList.Count - 1] + "]");      }        }     [DataContract]  public class User  {      /// <summary>      /// 编号      /// </summary>      [DataMember]      public int UserId { get; set; }      /// <summary>      /// 用户名      /// </summary>      [DataMember]      public string UserName { get; set; }      /// <summary>      /// 创建时间      /// </summary>      [DataMember]      [JsonConverter(typeof(IsoDateTimeConverter))]      public DateTime CreateDate { get; set; }      /// <summary>      /// 生日      /// </summary>      [DataMember]      [JsonConverter(typeof(JavaScriptDateTimeConverter))]      public DateTime Birthday { get; set; }      /// <summary>      /// 相关URL      /// </summary>      [DataMember]      public List<string> Urls { get; set; }      /// <summary>      /// 薪水      /// </summary>    //  [ScriptIgnore]//使用JavaScriptSerializer序列化时不序列化此字段      [IgnoreDataMember]//使用DataContractJsonSerializer序列化时不序列化此字段      [JsonIgnore]//使用JsonConvert序列化时不序列化此字段      public int Salary { get; set; }      /// <summary>      /// 权利级别      /// </summary>      [DataMember]      public Priority Priority { get; set; }        public User()      {          Urls = new List<string>();      }  }  /// <summary>  /// 权利级别  /// </summary>  public enum Priority:byte  {      Lowest=0x1,      BelowNormal=0x2,      Normal=0x4,      AboveNormal=0x8,      Highest=0x16  }  }