[英]Set the order of JSON properties serialized from a third-party object
我将对象序列化为JSON,我没有代码(所以我不能在每个属性上设置[JsonProperty(Order = x)]
属性)。
我还需要仅指定要序列化的某些属性。
以下代码正在运行,但我还需要指定属性的顺序。
public class DynamicContractResolver : Newtonsoft.Json.Serialization.CamelCasePropertyNamesContractResolver
{
private IList<string> _propertiesToSerialize = null;
public DynamicContractResolver(IList<string> propertiesToSerialize)
{
_propertiesToSerialize = propertiesToSerialize;
}
protected override IList<JsonProperty> CreateProperties(Type type, Newtonsoft.Json.MemberSerialization memberSerialization)
{
IList<JsonProperty> properties = base.CreateProperties(type, memberSerialization); //.OrderBy(p => p.Order).ToList();
return properties.Where(p => _propertiesToSerialize.Contains(p.PropertyName)).ToList();
}
}
//...
List<string> propertiesToSerialize = new List<string>(new string[]
{
"name",
"masterString",
"cruiseMode",
"account"
});
DynamicContractResolver contractResolver = new DynamicContractResolver(propertiesToSerialize);
string json = Newtonsoft.Json.JsonConvert.SerializeObject(_objToSerialize, Newtonsoft.Json.Formatting.Indented,
new Newtonsoft.Json.JsonSerializerSettings { ContractResolver = contractResolver });
输出是:
{
"masterString": "Provider...",
"cruiseMode": 2,
"account": "xxx\yyy",
"name": "AdWorksName"
}
但我需要它:
{
"name": "AdWorksName",
"masterString": "Provider...",
"cruiseMode": 2,
"account": "xxx\yyy",
}
尽管JSON规范在技术上将对象定义为“一组无序的名称/值对”,但JSON.net仍允许您根据需要设置属性的顺序。 在解析器中,您只需要在每个JsonProperty
上设置Order
值,然后相应地返回它们。
protected override IList<JsonProperty> CreateProperties(Type type, Newtonsoft.Json.MemberSerialization memberSerialization)
{
IList<JsonProperty> properties = base.CreateProperties(type, memberSerialization)
.Where(p => _propertiesToSerialize.Contains(p.PropertyName)).ToList();
foreach (JsonProperty prop in properties)
{
prop.Order = _propertiesToSerialize.IndexOf(prop.PropertyName) + 1;
}
return properties.OrderBy(p => p.Order).ToList();
}
工作演示: https : //dotnetfiddle.net/OhfWHl
属性的顺序没有意义或在JSON中维护,原因相同,属性的顺序不是在XML中保存的......或者在Javascript本身中。 如果您想要订购,则必须将其序列化为列表。
声明:本站的技术帖子网页,遵循CC BY-SA 4.0协议,如果您需要转载,请注明本站网址或者原文地址。任何问题请咨询:yoyou2525@163.com.