如何将日期时间变量从C＃代码传递给java webservice？

Question

getClients(LoginInfo user, long sysId, java.lang.String accNum, java.lang.String ClientNum, java.util.Calendar fromTime, java.util.Calendar toTime, boolean showDeactivated, boolean showDetails).

Above is java webservice method that I am calling from C# code.

I am passing fromTime and ToTime parameters with following values

 DateTime from = new DateTime(2012, 3, 1, 1, 1, 1, DateTimeKind.Unspecified);
 DateTime to = new DateTime(2012, 4, 1, 1, 1, 1, DateTimeKind.Unspecified);

Found an error date string can not be less than 19 charactors

Edit_ _ __ _ __ _ __ _ __ _ __ _ __ _ ___ * Below is method in proxy *

getClients([System.Xml.Serialization.XmlElementAttribute(IsNullable=true)] 
LoginInfo user, long sysId, [System.Xml.Serialization.XmlIgnoreAttribute()] bool sysdSpecified, 
[System.Xml.Serialization.XmlElementAttribute(IsNullable=true)] string accNum, 
[System.Xml.Serialization.XmlElementAttribute(IsNullable=true)] 
string ClientNum, [System.Xml.Serialization.XmlElementAttribute(IsNullable=true)] 
System.Nullable<System.DateTime> fromTime, [System.Xml.Serialization.XmlElementAttribute(IsNullable=true)] 
[System.Xml.Serialization.XmlIgnoreAttribute()] bool fromTimeSpecified,
 [System.Xml.Serialization.XmlElementAttribute(IsNullable=true)] System.Nullable<System.DateTime> toTime,
 [System.Xml.Serialization.XmlElementAttribute(IsNullable=true)] 
[System.Xml.Serialization.XmlIgnoreAttribute()] 
bool toTimeSpecified, 
bool showDeactivated, [System.Xml.Serialization.XmlIgnoreAttribute()]
 bool showDeactivatedSpecified, bool showDetails, 
[System.Xml.Serialization.XmlIgnoreAttribute()] bool showDetailsSpecified) {
}

Answer 1

Why don't you convert the value to a long? For example: minutes from 01/01/1990.

Answer 2

Send from C# as:

private static readonly DateTime Jan1st1970 = new DateTime
    (1970, 1, 1, 0, 0, 0, DateTimeKind.Utc);

public static long CurrentTimeMillis()
{
    return (long) (DateTime.UtcNow - Jan1st1970).TotalMilliseconds;
}

Recieve in Java as:

new Date(longValueFromAbove);

Answer 3

Have you tried using DateTimeKind.UTC?

The string is probably missing the time zone specifier, when you use DateTimeKind.Unspecified.

EDIT: OK, DateTime is not providing the timezone by any means, but DateTimeOffset does it. Try this:

  new DateTimeOffset(yourDateTime)