C# CamelCasePropertyNamesContractResolver在MapHttpRoute之后不工作
我正试图在我的.NETAPI项目中实现JSON骆驼式外壳。在我的入门课程中,我添加了以下几行:C# CamelCasePropertyNamesContractResolver在MapHttpRoute之后不工作,c#,asp.net-web-api,C#,Asp.net Web Api,我正试图在我的.NETAPI项目中实现JSON骆驼式外壳。在我的入门课程中,我添加了以下几行: config.Formatters.JsonFormatter.SerializerSettings.ContractResolver = new CamelCasePropertyNamesContractResolver(); config.Formatters.JsonFormatter.UseDataContractJsonSerializer = false; 据我所知,这是在所
config.Formatters.JsonFormatter.SerializerSettings.ContractResolver =
new CamelCasePropertyNamesContractResolver();
config.Formatters.JsonFormatter.UseDataContractJsonSerializer = false;
据我所知,这是在所有路线上实施驼峰套管所需的。但是,当我添加以下内容时,这无法工作,响应返回为Pascal Case:
RouteTable.Routes.MapHttpRoute(
"DefaultApi",
"{controller}/{id}",
new {id = RouteParameter.Optional}
);
当我删除上面的MapHttpRoute行并在控制器中使用路由属性时,camel套管工作正常
有人知道这里发生了什么吗?在回答之前,您应该首先了解覆盖的驼峰案例API响应不会影响模型验证(我们将在回答结束时解决此问题) 对于您的问题: 您必须使用相同的HttpConfiguration变量,因此请尝试使用此变量
// config is an HttpConfiguration object
config.Routes.MapHttpRoute(
name: "API Default",
routeTemplate: "api/{controller}/{id}",
defaults: new { id = RouteParameter.Optional });
config.Formatters.JsonFormatter.SerializerSettings.ContractResolver = new CamelCasePropertyNamesContractResolver();
对于模型验证:
您必须创建一个所有其他控制器都应从中继承的基本控制器,然后通过创建一个新方法来替代ModelStateDictionary(ModelState是只读属性),如下所示(1):
1-我已经检查了许多与解决modelState中的camelCase问题相关的答案,即使是在.net core中,但non提供了一个默认配置解决方案。正如他们提到的,modelState不会受到我答案第一部分中使用的默认配置的影响问题在于,您需要调用!ModelState.IsValid,因此,不再使用[ApiController]进行自动处理。有一种更好的方法使用拦截器,我将尽快更新答案,以检查其他解决方案
public class BaseApiController : ApiController
{
public ModelStateDictionary ModelStateAsCamelCase()
{
var newModelStateDictionary = new ModelStateDictionary();
foreach (var element in ModelState)
{
if (!string.IsNullOrWhiteSpace(element.Key))
{
var keys = element.Key.Split('.');
List<string> camelKeys = new List<string>();
foreach (var key in keys)
{
camelKeys.Add(key.First().ToString().ToLowerInvariant() + key.Substring(1));
}
// You can (add a / change this) code if the returned key is not
// composed from the ObjectName.Property, such as when it is
// composed from the property name
var newKey = camelKeys.Aggregate((i, j) => i + "." + j);
newModelStateDictionary.Add(newKey, element.Value);
}
else
newModelStateDictionary.Add(element);
}
return newModelStateDictionary;
}
}
......
if (!ModelState.IsValid)
return BadRequest(ModelStateAsCamelCase());
......