不是的JavaScriptSerializer反序列化的DateTime /时间跨度正确 [英] JavaScriptSerializer not deserializing DateTime/TimeSpan Properly

问题描述

有一个问题，日期时间/时间跨度似乎不能用的JavaScriptSerializer正确反序列化。
当我反序列化的时间跨度后，即可获取对象后面是空的，如果我使用的DateTime那么时间均走出低谷。
没有找到这篇文章，但它并不能真正帮助我太多。
http://www.west-wind.com/weblog/ShowPost.aspx ？ID = 471402

任何人有什么想法？我应该也许尝试了json.net库？

 公共类JsonFilter：ActionFilterAttribute
{
    公共字符串参数{搞定;组; }
    公共类型JsonDataType {搞定;组; }
    公共覆盖无效OnActionExecuting（ActionExecutingContext filterContext）
    {
        如果（filterContext.HttpContext.Request.ContentType.Contains（应用/ JSON））
        {
            串inputContent;
            使用（VAR SR =新的StreamReader（filterContext.HttpContext.Request.InputStream））
            {
                inputContent = sr.ReadToEnd（）;
            }            串行的JavaScriptSerializer =新的JavaScriptSerializer（）;
            VAR的结果= serializer.Deserialize（inputContent，JsonDataType）;
            filterContext.ActionParameters [参数] =结果;
        }
    }
}公共类RosterItem
{
    公共RosterItem（）
    {
        评论=新的List＆LT; Form.Comment＆GT;（）;
    }
    公共布尔脏{搞定;组; }
    公众诠释ID {搞定;组; }
    公众诠释{STAFFID获得;组; }
    公共字符串描述{搞定;组; }
    公众诠释activityId {搞定;组; }
    公众的DateTime日期{搞定;组; }
    公共时间跨度的startTime {搞定;组; }
    公共时间跨度ENDTIME {搞定;组; }
    公开名单＆LT; Form.Comment＆GT;评论{搞定;组; }
}    [JsonFilter（参数=rosterItem，JsonDataType = typeof运算（RosterItem））]
    公众诠释SaveRosterEntry（RosterItem rosterItem）
    {
        RosterEntry rosterEntry = rosterEntryRepository.GetRosterEntry（rosterItem.id）;
        如果（rosterEntry == NULL）
        {
            rosterEntry =新RosterEntry（）;
            rosterEntryRepository.Add（rosterEntry）;
        }
        rosterEntry.ActivityID = rosterItem.activityId;
        rosterEntry.StartTime = rosterItem.startTime;
        rosterEntry.EndTime = rosterItem.endTime;
        rosterEntry.RosterDate = rosterItem.date;
        rosterEntry.RosterEmployeeID = rosterItem.staffId;
        rosterEntryRepository.Save（）;
        返回rosterEntry.RosterEntryID;
    }
 

解决方案

这将解决您的问题，如果你有同样的问题。

http://blog.devarchive.net/2008/ 02 /序列化，日期时间值，using.html

所有的DateTime对象需要显式地指定为UTC。

Having a problem where DateTime/TimeSpan doesn't seem to deserialize properly with JavaScriptSerializer. When I get the Object back after deserializing the TimeSpan is empty and if I use DateTime then the times are all out of whack. Did find this article but it didn't really help me too much. http://www.west-wind.com/weblog/ShowPost.aspx?id=471402

Anyone have any ideas? Should I maybe try the json.net library?

public class JsonFilter : ActionFilterAttribute
{
    public string Param { get; set; }
    public Type JsonDataType { get; set; }
    public override void OnActionExecuting(ActionExecutingContext filterContext)
    {
        if (filterContext.HttpContext.Request.ContentType.Contains("application/json"))
        {
            string inputContent;
            using (var sr = new StreamReader(filterContext.HttpContext.Request.InputStream))
            {
                inputContent = sr.ReadToEnd();
            }

            JavaScriptSerializer serializer = new JavaScriptSerializer();
            var result = serializer.Deserialize(inputContent, JsonDataType);
            filterContext.ActionParameters[Param] = result;
        }
    }
}

public class RosterItem
{
    public RosterItem()
    {
        comments = new List<Form.Comment>();
    }
    public Boolean dirty { get; set; }
    public int id { get; set; }
    public int staffId { get; set; }
    public String description { get; set; }
    public int activityId { get; set; }
    public DateTime date { get; set; }
    public TimeSpan startTime { get; set; }
    public TimeSpan endTime { get; set; }
    public List<Form.Comment> comments { get; set; }
}

    [JsonFilter(Param = "rosterItem", JsonDataType = typeof(RosterItem))]
    public int SaveRosterEntry(RosterItem rosterItem)
    {
        RosterEntry rosterEntry = rosterEntryRepository.GetRosterEntry(rosterItem.id);
        if (rosterEntry == null)
        {
            rosterEntry = new RosterEntry();
            rosterEntryRepository.Add(rosterEntry);
        }
        rosterEntry.ActivityID = rosterItem.activityId;
        rosterEntry.StartTime = rosterItem.startTime;
        rosterEntry.EndTime = rosterItem.endTime;
        rosterEntry.RosterDate = rosterItem.date;
        rosterEntry.RosterEmployeeID = rosterItem.staffId;            
        rosterEntryRepository.Save();
        return rosterEntry.RosterEntryID;
    }

解决方案

This will fix your issue if you ever have the same problem.

http://blog.devarchive.net/2008/02/serializing-datetime-values-using.html

All DateTime objects need to be specified explicitly as UTC.

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