C# Json 序列化大全--任我行

public class JsonHelper
{
/// <summary>
/// 将Model转换为Json字符串
/// </summary>
/// <typeparam name="T"></typeparam>
/// <param name="obj"></param>
/// <returns></returns>
public static string GetJson<T>(T obj)
{
try
{
DataContractJsonSerializer json = new DataContractJsonSerializer(typeof(T));
using (MemoryStream ms = new MemoryStream())
{
json.WriteObject(ms, obj);
string strJson = Encoding.UTF8.GetString(ms.ToArray());

string p = @"\\/Date\((\d+)\+\d+\)\\/";
MatchEvaluator me = new MatchEvaluator(ConvertJsonDateToDateString);
Regex rg = new Regex(p);
strJson = rg.Replace(strJson, me);
return strJson;
}
}
catch (Exception ex)
{

}

return string.Empty;
}

/// <summary>
/// 将Json字符串转换为Model
/// </summary>
/// <typeparam name="T"></typeparam>
/// <param name="strJson"></param>
/// <returns></returns>
public static T ParseJson<T>(string strJson)
{
try
{
string p = @"\d{4}-\d{2}-\d{2}\s\d{2}:\d{2}:\d{2}[a-z,A-Z]";
MatchEvaluator me = new MatchEvaluator(ConvertDateTimeToJsonDate);
Regex rg = new Regex(p);
strJson = rg.Replace(strJson, me);

p = @"\d{4}-\d{2}-\d{2}\s\d{2}:\d{2}:\d{2}";
me = new MatchEvaluator(ConvertDateTimeToJsonDate);
rg = new Regex(p);
strJson = rg.Replace(strJson, me);

using (MemoryStream ms = new MemoryStream(Encoding.UTF8.GetBytes(strJson)))
{
DataContractJsonSerializer serializer = new DataContractJsonSerializer(typeof(T));
T obj = (T)serializer.ReadObject(ms);
return obj;
}
}
catch (Exception ex)
{

}

return default(T);
}

/// <summary>
/// 将Json序列化的时间由/Date(1294499956278+0800)转为字符串
/// </summary>
/// <param name="m"></param>
/// <returns></returns>
private static string ConvertJsonDateToDateString(Match m)
{
string result = string.Empty;
DateTime dt = new DateTime(1970, 1, 1);
dt = dt.AddMilliseconds(long.Parse(m.Groups[1].Value));
dt = dt.ToLocalTime();
result = dt.ToString("yyyy-MM-dd HH:mm:ss");
return result;
}

/// <summary>
/// 将时间字符串转化成json时间
/// </summary>
/// <param name="m"></param>
/// <returns></returns>
private static string ConvertDateTimeToJsonDate(Match m)
{
string result = string.Empty;
DateTime dt = DateTime.Parse(m.Groups[0].Value);
dt = dt.ToUniversalTime();
TimeSpan ts = dt - DateTime.Parse("1970-01-01");
result = string.Format("\\/Date({0}+0800)\\/", ts.TotalMilliseconds);
return result;
}
}

/// <summary>
/// 至爱甄选实体类
/// </summary>
[Serializable]
[DataContract]
public class FavoriteInfo
{
private int _id;
private string _title;/// <summary>
/// 至爱甄选Id
/// </summary>
[DataMember]
public int Id
{
set { _id = value; }
get { return _id; }
}

[DataMember]
/// <summary>
/// 标题
/// </summary>
public string Title
{
set { _title = value; }
get { return _title; }
}

}

//获取数据集，返回List<FavoriteInfo>
IList<FavoriteInfo> favoriteModelList = new PB.Favorite().GetFavoriteModelList(1, 1, "");
if (favoriteModelList!=null && favoriteModelList.Count>0)
{
string jsonString = JsonHelper.GetJson<IList<FavoriteInfo>>(favoriteModelList);
context.Response.Write(jsonString);
}