public override MediaTypeFormatter GetPerRequestFormatterInstance(Type type, HttpRequestMessage request,MediaTypeHeaderValue mediaType)
{
//所需的对象属性
var includingFields = request.GetRouteData().Values["fields"];
if (includingFields != null && !string.IsNullOrEmpty(includingFields.ToString()))
{
FieldsJsonMediaTypeFormatter frmtr = new FieldsJsonMediaTypeFormatter();
frmtr.CurrentRequest = request;
var resolve = new Share.IncludableSerializerContractResolver(this.SerializerSettings.ContractResolver as Share.IgnorableSerializerContractResolver);
//type.IsAssignableFrom(typeof(IEnumerable<Model.dr_pre_visit>))
if (type.GetInterface("IEnumerable") != null)
{
resolve.Include(type.GenericTypeArguments[0], includingFields.ToString(), ',');
}
else
{
resolve.Include(type, includingFields.ToString(), ",");
}
frmtr.SerializerSettings = new JsonSerializerSettings
{
ContractResolver = resolve,
};
return frmtr;
}
else
{
return this;
}
}
public static void Register(HttpConfiguration config)
{
//----------- Web API configuration and services -----------
//如果不需要XML格式的数据,则去掉下面的注释
//config.Formatters.Remove(config.Formatters.XmlFormatter);
//JSON 格式化
config.Formatters.Remove(config.Formatters.JsonFormatter);
var jsonFormatter = new FieldsJsonMediaTypeFormatter();
#region SerializerSettings
var jsonResolve = new Share.IgnorableSerializerContractResolver();
jsonResolve.Ignore(typeof(Model.md_user), "loginpwd");
jsonResolve.Ignore(typeof(Model.dr_visit), "pkid");
jsonFormatter.SerializerSettings = new JsonSerializerSettings
{
ContractResolver = jsonResolve,
};
#endregion
config.Formatters.Add(jsonFormatter);
//----------- Web API routes -----------
config.MapHttpAttributeRoutes();
/* 注意
*
* 1)
* 只能定义（最多）一个符合以下条件的函数
* a）相同 GET/POST/PUT/DELETE动作的,
* b）只有一个名为id的参数
* 也就是,当定义类似SomeFunction(int id)的函数时,就需注意了。
*
* 2)
* 只能定义（最多一个）具有相同动作的无参函数,如Get()和GetSome() 会造成冲突
*
* 3)可空的参数也参与路由选择
* 例如 SomeFunction(int? p1)
* 如果 使用api/action/SomeFunction,不能进行路由
* 要使用api/action/SomeFunction?p1=10
* 或者 api/action/SomeFunction?p1
**/
config.Routes.MapHttpRoute(
name: "ActionMethod",
//如果使用 "api/{controller}/{action}",则DefaultApi就被覆盖
//所以使用了"api/{controller}/action/{action}"
//{fields}:指定返回所需对象的属性,多个属性用","（逗号）隔开
routeTemplate: "api/{controller}/action/{action}/{fields}",
defaults: new { action = RouteParameter.Optional, fields = RouteParameter.Optional }
);
config.Routes.MapHttpRoute(
name: "DefaultApi",
routeTemplate: "api/{controller}/{id}",
defaults: new { id = RouteParameter.Optional }
);
}
