问题
I am serializing a complex object with lot of properties of other Types and Lists to JSON form but the issue is with DateTime properties. I get the epoch time with JavascriptSerializer (rather than mm/dd/YYYY).
Is there any way I can get the datetime in mm/dd/YYYY : HH.MM.SS form without modifying the class defination of the object i am serialzing.
回答1:
This cannot be achieved using JavaScriptSerializer
and without modifying the underlying class. This could be achieved with Json.Net.
回答2:
There is a solution to this using the RegisterConverters method on the serializer object.
Custom DateTime JSON Format for .NET JavaScriptSerializer
You just create a class that inherit JavaScriptConverter and implement your own serialization of the DateTime object.
And then serialize like this:
var obj = new { date = DateTime.Now };
var ser = new JavaScriptSerializer();
ser.RegisterConverters(new[] { new DateTimeJavaScriptConverter() });
var result = ser.Serialize(obj);
result = {"date":"2019-10-25T11:49:58.7322411Z"}
Change the line
return new CustomString(((DateTime)obj).ToUniversalTime().ToString("O"));
for your custom version of the DateTime.
The class from the link:
public class DateTimeJavaScriptConverter : JavaScriptConverter
{
public override object Deserialize(IDictionary<string, object> dictionary, Type type, JavaScriptSerializer serializer)
{
return new JavaScriptSerializer().ConvertToType(dictionary, type);
}
public override IDictionary<string, object> Serialize(object obj, JavaScriptSerializer serializer)
{
if (!(obj is DateTime)) return null;
return new CustomString(((DateTime)obj).ToUniversalTime().ToString("O"));
}
public override IEnumerable<Type> SupportedTypes
{
get { return new[] { typeof(DateTime) }; }
}
private class CustomString : Uri, IDictionary<string, object>
{
public CustomString(string str)
: base(str, UriKind.Relative)
{
}
void IDictionary<string, object>.Add(string key, object value)
{
throw new NotImplementedException();
}
bool IDictionary<string, object>.ContainsKey(string key)
{
throw new NotImplementedException();
}
ICollection<string> IDictionary<string, object>.Keys
{
get { throw new NotImplementedException(); }
}
bool IDictionary<string, object>.Remove(string key)
{
throw new NotImplementedException();
}
bool IDictionary<string, object>.TryGetValue(string key, out object value)
{
throw new NotImplementedException();
}
ICollection<object> IDictionary<string, object>.Values
{
get { throw new NotImplementedException(); }
}
object IDictionary<string, object>.this[string key]
{
get
{
throw new NotImplementedException();
}
set
{
throw new NotImplementedException();
}
}
void ICollection<KeyValuePair<string, object>>.Add(KeyValuePair<string, object> item)
{
throw new NotImplementedException();
}
void ICollection<KeyValuePair<string, object>>.Clear()
{
throw new NotImplementedException();
}
bool ICollection<KeyValuePair<string, object>>.Contains(KeyValuePair<string, object> item)
{
throw new NotImplementedException();
}
void ICollection<KeyValuePair<string, object>>.CopyTo(KeyValuePair<string, object>[] array, int arrayIndex)
{
throw new NotImplementedException();
}
int ICollection<KeyValuePair<string, object>>.Count
{
get { throw new NotImplementedException(); }
}
bool ICollection<KeyValuePair<string, object>>.IsReadOnly
{
get { throw new NotImplementedException(); }
}
bool ICollection<KeyValuePair<string, object>>.Remove(KeyValuePair<string, object> item)
{
throw new NotImplementedException();
}
IEnumerator<KeyValuePair<string, object>> IEnumerable<KeyValuePair<string, object>>.GetEnumerator()
{
throw new NotImplementedException();
}
IEnumerator IEnumerable.GetEnumerator()
{
throw new NotImplementedException();
}
}
}
来源:https://stackoverflow.com/questions/4045710/javascriptserializer-date-format-issue