JavaScriptSerializer序列化成Json時DateTime類型數據的處理

JavaScriptSerializer在序列化時會將DateTime的數據序列化成類似\/Date(626543800000)\/這樣的值，找了很多方法都不如意，最後在一個博客找到了完美的解決方法，地址：http://blog.calyptus.eu/seb/2011/12/custom-datetime-json-serialization/，通過自定義類型轉換器的方式轉換成想要的格式，轉換器代碼如下：

public class DateTimeConverter : 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).ToString("yyyy-MM-dd"));
    }

    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();
        }
    }
}

 然後注冊一下就行了：

public JavaScriptSerializer serializer = new JavaScriptSerializer();
serializer.RegisterConverters(new JavaScriptConverter[] { new DateTimeConverter() });

這樣使用serializer序列化的對象中包含DateTime類型的值就會被轉化成yyyy-MM-dd格式的字符串