我的问题是,我希望通过ASP.NET MVC控制器方法(由JSON.NET序列化)通过ActionResult来返回camelCased(与标准PascalCase相反)JSON数据。
作为示例,请考虑以下C#类:
public class Person { public string FirstName { get; set; } public string LastName { get; set; } }
默认情况下,当从MVC控制器以JSON返回此类的实例时,它将以以下方式序列化:
{ "FirstName": "Joe", "LastName": "Public" }
我希望将其序列化(通过JSON.NET)为:
{ "firstName": "Joe", "lastName": "Public" }
我该怎么做呢?
我在Mats Karlsson的博客中找到了解决此问题的绝佳方法。解决方案是编写ActionResult的子类,该子类通过JSON.NET序列化数据,并将后者配置为遵循camelCase约定:
public class JsonCamelCaseResult : ActionResult { public JsonCamelCaseResult(object data, JsonRequestBehavior jsonRequestBehavior) { Data = data; JsonRequestBehavior = jsonRequestBehavior; } public Encoding ContentEncoding { get; set; } public string ContentType { get; set; } public object Data { get; set; } public JsonRequestBehavior JsonRequestBehavior { get; set; } public override void ExecuteResult(ControllerContext context) { if (context == null) { throw new ArgumentNullException("context"); } if (JsonRequestBehavior == JsonRequestBehavior.DenyGet && String.Equals(context.HttpContext.Request.HttpMethod, "GET", StringComparison.OrdinalIgnoreCase)) { throw new InvalidOperationException("This request has been blocked because sensitive information could be disclosed to third party web sites when this is used in a GET request. To allow GET requests, set JsonRequestBehavior to AllowGet."); } var response = context.HttpContext.Response; response.ContentType = !String.IsNullOrEmpty(ContentType) ? ContentType : "application/json"; if (ContentEncoding != null) { response.ContentEncoding = ContentEncoding; } if (Data == null) return; var jsonSerializerSettings = new JsonSerializerSettings { ContractResolver = new CamelCasePropertyNamesContractResolver() }; response.Write(JsonConvert.SerializeObject(Data, jsonSerializerSettings)); } }
然后在MVC控制器方法中按如下所示使用此类:
public ActionResult GetPerson() { return new JsonCamelCaseResult(new Person { FirstName = "Joe", LastName = "Public" }, JsonRequestBehavior.AllowGet)}; }