可以JavaScriptSerializer排除性能与空/默认值吗？ [英] Can JavaScriptSerializer exclude properties with null/default values?

问题描述

我使用JavaScriptSerializer序列化一些实体对象。

I'm using JavaScriptSerializer to serialize some entity objects.

现在的问题是，许多的公共属性包含空值或默认值。有没有什么办法让JavaScriptSerializer与空或默认值排除属性？

The problem is, many of the public properties contain null or default values. Is there any way to make JavaScriptSerializer exclude properties with null or default values?

我想生成的JSON是更简洁。

I would like the resulting JSON to be less verbose.

推荐答案

这是为我工作的解决方案：

The solution that worked for me:

序列化的类和属性将被装饰成如下：

The serialized class and properties would be decorated as follows:

[DataContract]
public class MyDataClass
{
  [DataMember(Name = "LabelInJson", IsRequired = false)]
  public string MyProperty { get; set; }
}

IsRequired是关键项目。

IsRequired was the key item.

可以使用DataContractJsonSerializer做实际的序列化：

The actual serialization could be done using DataContractJsonSerializer:

public static string Serialize<T>(T obj)
{
  string returnVal = "";
  try
  {
    DataContractJsonSerializer serializer = new DataContractJsonSerializer(obj.GetType());
    using (MemoryStream ms = new MemoryStream())
    {
      serializer.WriteObject(ms, obj);
      returnVal = Encoding.Default.GetString(ms.ToArray());
    }
  }
  catch (Exception /*exception*/)
  {
    returnVal = "";
    //log error
  }
  return returnVal;
}

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