JsonHelper

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

/// <summary>
///JSONHelper 的摘要说明
/// </summary>
public class JSONHelper
{
    public JSONHelper()
    {
    }
    //
    //TODO: 在此处添加构造函数逻辑
    //

    /// <summary>
    /// 生成Json格式
    /// </summary>
    /// <typeparam name="T"></typeparam>
    /// <param name="obj"></param>
    /// <returns></returns>
    public static string GetJson<T>(T obj)
    {
        DataContractJsonSerializer json = new DataContractJsonSerializer(obj.GetType());
        using (MemoryStream stream = new MemoryStream())
        {
            json.WriteObject(stream, obj);
            string szJson = Encoding.UTF8.GetString(stream.ToArray()); return szJson;
        }
    }
    /// <summary>
    /// 获取Json的Model
    /// </summary>
    /// <typeparam name="T"></typeparam>
    /// <param name="szJson"></param>
    /// <returns></returns>
    public static T ParseFromJson<T>(string szJson)
    {
        T obj = Activator.CreateInstance<T>();
        using (MemoryStream ms = new MemoryStream(Encoding.UTF8.GetBytes(szJson)))
        {
            DataContractJsonSerializer serializer = new DataContractJsonSerializer(obj.GetType());
            return (T)serializer.ReadObject(ms);
        }
    }
}