using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Runtime.Serialization;
using System.Runtime.Serialization.Json;
using System.IO;
using System.Text.RegularExpressions;
using System.Web.Script.Serialization;

namespace HelpClass.TypeHelp
{
    /// <summary>
    /// 在VS中需要添加引用System.Web.Script.Serialization的时候，请先引用System.Web.Extensions
    /// </summary>
    public class JsonHelp
    {
        /// <summary>
        /// json序列化（非二进制方式）
        /// </summary>
        /// <typeparam name="T"></typeparam>
        /// <param name="t"></param>
        /// <returns></returns>
        public static string JsonSerializer<T>(T t)
        {
            JavaScriptSerializer jsonSerialize = new JavaScriptSerializer();
            return jsonSerialize.Serialize(t);
        }

        /// <summary>
        /// json反序列化（非二进制方式）
        /// </summary>
        /// <typeparam name="T"></typeparam>
        /// <param name="jsonString"></param>
        /// <returns></returns>
        public static T JsonDeserialize<T>(string jsonString)
        {
            JavaScriptSerializer jsonSerialize = new JavaScriptSerializer();
            return (T)jsonSerialize.Deserialize<T>(jsonString);
        }


        /// <summary>
        /// JSON序列化(二进制方式，实体类使用[Serializable])
        /// </summary>
        /// <typeparam name="T"></typeparam>
        /// <param name="t"></param>
        /// <returns></returns>
        public static string JsonSerializerIO<T>(T t)
        {
            DataContractJsonSerializer ser = new DataContractJsonSerializer(typeof(T));
            using (MemoryStream ms = new MemoryStream())
            {
                ser.WriteObject(ms, t);
                string jsonString = Encoding.UTF8.GetString(ms.ToArray());
                ms.Close();
                return jsonString;
            }          
        }

        /// <summary>
        /// JSON反序列化(二进制方法，实体类使用[Serializable])
        /// </summary>
        /// <typeparam name="T"></typeparam>
        /// <param name="jsonString"></param>
        /// <returns></returns>
        public static T JsonDeserializeIO<T>(string jsonString)
        {
            DataContractJsonSerializer ser = new DataContractJsonSerializer(typeof(T));
            using (MemoryStream ms = new MemoryStream(Encoding.UTF8.GetBytes(jsonString)))
            {
                T obj = (T)ser.ReadObject(ms);
                return obj;
            }
        }

    }
}

public class ddd
{
        public string d1 { get; set; }
        public string d2 { get; set; }
        public string d3 { get; set; }
}

ddd a = new ddd { d1 = "1", d2 = "2", d3 = "3" };
string stra = HelpClass.TypeHelp.JsonHelp.JsonSerializer<ddd>(a);
ddd dd2 = HelpClass.TypeHelp.JsonHelp.JsonDeserialize<ddd>(stra);

ddd a = new ddd { d1 = "1", d2 = "2", d3 = "3" };

ddd b = new ddd { d1 = "11", d2 = "12", d3 = "13" };

ddd c = new ddd { d1 = "21", d2 = "22", d3 = "23" };

List<ddd> abc = new List<ddd>();

abc.Add(a);

abc.Add(b);

abc.Add(c);

string strabc = HelpClass.TypeHelp.JsonHelp.JsonSerializer<List<ddd>>(abc);

List<ddd> ddabc =HelpClass.TypeHelp.JsonHelp.JsonDeserialize<List<ddd>>(strabc);

[DataContract]
public class ddd
{
            [DataMember(Name = "d1")]
            public string d1 { get; set; }
            [DataMember(Name = "d2")]
            public string d2 { get; set; }
            [DataMember(Name = "d3")]
            public string d3 { get; set; }
 }

ddd a = new ddd { d1 = "1", d2 = "2", d3 = "3" };
string stra = HelpClass.TypeHelp.JsonHelp.JsonSerializer<ddd>(a);
ddd dd2 = HelpClass.TypeHelp.JsonHelp.JsonDeserialize<ddd>(stra);
序列化类序列为json数组:
ddd a = new ddd { d1 = "1", d2 = "2", d3 = "3" };
ddd b = new ddd { d1 = "11", d2 = "12", d3 = "13" };
ddd c = new ddd { d1 = "21", d2 = "22", d3 = "23" };
List<ddd> abc = new List<ddd>();
abc.Add(a);
abc.Add(b);
abc.Add(c);
string strabc = HelpClass.TypeHelp.JsonHelp.JsonSerializer<List<ddd>>(abc);
List<ddd> ddabc =HelpClass.TypeHelp.JsonHelp.JsonDeserialize<List<ddd>>(strabc);