C#Odata v4开放式原始值
我有一个包含动态属性的简单打开类型:C#Odata v4开放式原始值,c#,asp.net-web-api,odata,C#,Asp.net Web Api,Odata,我有一个包含动态属性的简单打开类型: public class Person { [Key] public string Uid { get; set; } public IDictionary<string, object> DynamicProperties { get; set; } } 我可以通过~/Person('uid')/foo这样的URL来单独请求这些属性,这要归功于它们的键和此方法: public IHttpActionResul
public class Person {
[Key]
public string Uid { get; set; }
public IDictionary<string, object> DynamicProperties { get; set; }
}
我可以通过~/Person('uid')/foo这样的URL来单独请求这些属性,这要归功于它们的键和此方法:
public IHttpActionResult GetDynamicProperty([FromODataUri] string key, [FromODataUri] string dynamicProperty) {
Person person;
// ...
// (string) for the example
return this.Ok((string)person.DynamicProperties[dynamicProperty]);
}
结果是:
{
"@odata.context": "http://myServer/$metadata#Person('uid')/foo",
"value": "foo_value"
}
但我不知道如何使用像~/Person('uid')/foo/$value这样的URL获取这些属性的原始值
如果我尝试一下,结果是:
{
"error": {
"code": "",
"message": "No HTTP resource was found that matches the request URI 'http://myServer/Person('uid')/foo/$value'.",
"innererror": {
"message": "No routing convention was found to select an action for the OData path with template '~/entityset/key/dynamicproperty/$value'.",
"type": "",
"stacktrace": ""
}
}
}
我应该如何路由以访问这些原始值?或者有没有一种方法或其他东西可以处理它
--在用户回答后编辑
谢谢你的例子,它很有魅力。我已经跟踪了你的样本的第1点和第2点。对于第3点,如果它可以帮助某人,这是一个经典Web API的注册方法的改编版本:
public static void Register(HttpConfiguration config) {
// Custom routing for dynamic attributes raw values
var routings = ODataRoutingConventions.CreateDefault();
routings.Insert(0, new DynamicRawValueRoutingConvention());
// Our model
ODataModelBuilder builder = new ODataConventionModelBuilder();
builder.EntitySet<Person>("Person");
// ...
// Old way
//config.MapODataServiceRoute(
// routeName: "myDefaultRouteName",
// routePrefix: null,
// model: builder.GetEdmModel()
//);
// New way with Sam's samples
config.MapODataServiceRoute(
"myDefaultRouteName",
null,
configureAction =>
configureAction.AddService(ServiceLifetime.Singleton, sp => builder.GetEdmModel()).AddService<IEnumerable<IODataRoutingConvention>>(ServiceLifetime.Singleton, sp => routings)
);
var formatters = ODataMediaTypeFormatters.Create();
foreach (var oDataMediaTypeFormatter in formatters) {
oDataMediaTypeFormatter.MediaTypeMappings.Insert(0, new ODataDynamicValueMediaTypeMapping());
}
config.Formatters.InsertRange(0, formatters);
}
公共静态无效寄存器(HttpConfiguration配置){
//动态属性原始值的自定义路由
var routings=ODataRoutingConventions.CreateDefault();
插入(0,新的DynamicRawValueRoutingConvention());
//我们的模型
ODataModelBuilder=新ODataConventionModelBuilder();
建造商实体集(“人”);
// ...
//老路
//config.MapODataServiceRoute(
//routeName:“myDefaultRouteName”,
//routePrefix:null,
//模型:builder.GetEdmModel()
//);
//山姆样品的新方法
config.MapODataServiceRoute(
“myDefaultRouteName”,
无效的
配置操作=>
configureAction.AddService(ServiceLifetime.Singleton,sp=>builder.GetEdmModel()).AddService(ServiceLifetime.Singleton,sp=>routings)
);
var formatters=ODataMediaTypeFormatters.Create();
foreach(格式化程序中的变量oDataMediaTypeFormatter){
oDataMediaTypeFormatter.MediaTypeMappings.Insert(0,新的ODataDynamicValueMediaTypeMapping());
}
config.Formatters.InsertRange(0,格式化程序);
}
@Max Xapi
OData没有内置逻辑来支持动态属性的$value
但是,您可以自己解决问题来完成它
这很简单,只需几个步骤:
$value
但是,您可以自己解决问题来完成它
这很简单,只需几个步骤:
-Sam是否将
~/Person('uid')?$select=foo
足够?不幸的是,否,因为除非在技术上尚不可行(我无法回答这个问题),否则客户端希望使用非动态属性的“经典”语法是否将~/Person('uid')?$select=foo
足够?不幸的是否,因为除非在技术上还不可能(我不能回答这个问题),客户机希望使用“经典”语法来处理非动态属性
public static void Register(HttpConfiguration config) {
// Custom routing for dynamic attributes raw values
var routings = ODataRoutingConventions.CreateDefault();
routings.Insert(0, new DynamicRawValueRoutingConvention());
// Our model
ODataModelBuilder builder = new ODataConventionModelBuilder();
builder.EntitySet<Person>("Person");
// ...
// Old way
//config.MapODataServiceRoute(
// routeName: "myDefaultRouteName",
// routePrefix: null,
// model: builder.GetEdmModel()
//);
// New way with Sam's samples
config.MapODataServiceRoute(
"myDefaultRouteName",
null,
configureAction =>
configureAction.AddService(ServiceLifetime.Singleton, sp => builder.GetEdmModel()).AddService<IEnumerable<IODataRoutingConvention>>(ServiceLifetime.Singleton, sp => routings)
);
var formatters = ODataMediaTypeFormatters.Create();
foreach (var oDataMediaTypeFormatter in formatters) {
oDataMediaTypeFormatter.MediaTypeMappings.Insert(0, new ODataDynamicValueMediaTypeMapping());
}
config.Formatters.InsertRange(0, formatters);
}