欲买桂花同载酒，终不似，少年游~

承接上篇，现在我在类中加入一个日期时间类型的字段：

public class Student{public string StudentId { get; set; }public string Name { get; set; }public int age { get; set; }public string Address { get; set; }public DateTime Birthday { get; set; }}

如果不对birthday这个类型处理的话，序列化之后就会出现这个问题：

{"Address":"北京朝阳区","Birthday":"\/Date(1434943392228+0800)\/","Name":"水田如雅","StudentId":"110","age":20}

现在我们在原来的方法上面进行一个改进：

public static class JsonConvert{/// <summary>/// Converts the obj to json./// </summary>/// <typeparam name="T"></typeparam>/// <param name="t">The t.</param>/// <returns>System.String.</returns>/// <remarks>Editor：v-liuhch CreateTime：2015/6/21 21:40:55</remarks>public static string ConvertObjToJson<T>(T t){DataContractJsonSerializer ser = new DataContractJsonSerializer(t.GetType());try{using (MemoryStream ms=new MemoryStream()){ser.WriteObject(ms,t);string strJson=Encoding.UTF8.GetString(ms.ToArray());//替换Json的date字符串string p = @"\\/Date\((\d+)\+\d+\)\\/";MatchEvaluator matchEvaluator = new MatchEvaluator(ConvertJsonDataToDateString);Regex reg = new Regex(p);strJson = reg.Replace(strJson, matchEvaluator);return strJson;}}catch (IOException){//自己处理异常吧return null;}}/// <summary>/// Jsons the deserialize./// </summary>/// <typeparam name="T"></typeparam>/// <param name="strJson">The STR json.</param>/// <returns>“0.</returns>/// <remarks>Editor：v-liuhch CreateTime：2015/6/21 21:46:37</remarks>public static T JsonDeserialize<T>(string strJson)where T:class //约束T为class,也可以放宽类型，这里只是个例子，写着玩儿的，欧巴们，此处可改{DataContractJsonSerializer ser = new DataContractJsonSerializer(typeof(T));try{//将"yyyy-MM-dd HH:mm:ss"格式的字符串转为"\/Date(1294499956278+0800)\/"格式string p = @"\d{4}-\d{2}-\d{2}\s\d{2}:\d{2}:\d{2}";MatchEvaluator matchEvaluator = new MatchEvaluator(ConvertDateStringToJsonDate);Regex reg = new Regex(p);strJson = reg.Replace(strJson, matchEvaluator);using (MemoryStream ms = new MemoryStream(Encoding.UTF8.GetBytes(strJson))){T obj = ser.ReadObject(ms) as T;return obj;}}catch (IOException e){//自己处理异常吧return null;}}/// <summary>/// Converts the json data to date string./// </summary>/// <param name="m">The m.</param>/// <returns>System.String.</returns>/// <remarks>Editor：v-liuhch CreateTime：2015/6/22 11:39:18</remarks>private static string ConvertJsonDataToDateString(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();//转换为本地时间result = dt.ToString("yyyy-MM-dd HH:mm:ss");return result;}/// <summary>/// Converts the date string to json date./// </summary>/// <param name="m">The m.</param>/// <returns>System.String.</returns>/// <remarks>Editor：v-liuhch CreateTime：2015/6/22 11:39:15</remarks>private static string ConvertDateStringToJsonDate(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;}}

当然，在序列化的时候，我们可以不对日期时间做单独处理，拿到前台JS之后，再对数据进行一个整合过滤，，这样，就不会固定死日期时间的返回格式，感觉这样比在后台处理好。

顺境的美德是节制，逆境的美德是坚韧，这后一种是较为伟大的德性。