包含时间的Json序列化
public static string ObjectToJson<T>(T t) { using (MemoryStream ms = new MemoryStream()) { DataContractJsonSerializer serializer = new DataContractJsonSerializer(typeof(T)); serializer.WriteObject(ms, t); ms.Position = 0; using (StreamReader reader = new StreamReader(ms)) { string json = reader.ReadToEnd(); string p = @"\\/Date\((\d+)\+\d+\)\\/"; MatchEvaluator evaluator = new MatchEvaluator(ConvertJsonDataToDataString); Regex reg = new Regex(p); json = reg.Replace(json, evaluator); return json; } } } public static T JsonToObject<T>(string json) { string p = @"\d{4}-\d{2}-\d{2}\s\d{2}:\d{2}:\d{2}"; MatchEvaluator evaluator = new MatchEvaluator(ConvertDateStringToJsonDate); //对时间进行处理 Regex reg = new Regex(p); json = reg.Replace(json, evaluator); using (MemoryStream ms = new MemoryStream(Encoding.Unicode.GetBytes(json))) { DataContractJsonSerializer serializer = new DataContractJsonSerializer(typeof(T)); T data = (T)serializer.ReadObject(ms); return data; } } /// <summary> /// 将Json时间转换为时间字符 /// </summary> /// <param name="m"></param> /// <returns></returns> private static string ConvertJsonDataToDataString(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> /// 将时间字符转换成JSON时间 /// </summary> 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; }
[DataContract] public class RecentVisitors { [DataMember] public long UserId { get; set; } [DataMember] public string UserName { get; set; } [DataMember] public DateTime Dt { get; set; } }
var jsonStr="[{\"UserId\":\"123123\",\"UserName\":\"小小苏\",\"Dt\":\"2012-09-25 10:50:00\"},{\"UserId\":\"456456\",\"UserName\":\"大头\",\"Dt\":\"2012-09-25 10:50:00\"}]";
调用:
1:JsonToObject<List<RecentVisitors>>(jsonStr)
2:ObjectToJson<List<RecentVisitors>>(new List<RecentVisitors);