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我有一个包含动态特性,简单的开放型:C#的OData v4的开放型原始值
public class Person {
[Key]
public string Uid { get; set; }
public IDictionary<string, object> DynamicProperties { get; set; }
}
在我的控制,我填的这些特性是这样的:
public IHttpActionResult Get([FromODataUri] string key) {
Person person;
// ...
person.DynamicProperties.Add("foo", "foo_value");
person.DynamicProperties.Add("bar", "bar_value");
// ...
return this.Ok(person);
}
我可以计算如何通过一个类似〜/ Person('uid')/ foo的URL来请求这些属性 - 感谢他们的密钥和此方法:
public IHttpActionResult GetDynamicProperty([FromODataUri] string key, [FromODataUri] string dynamicProperty) {
Person person;
// ...
// (string) for the example
return this.Ok((string)person.DynamicProperties[dynamicProperty]);
}
结果是这样的:
{
"@odata.context": "http://myServer/$metadata#Person('uid')/foo",
"value": "foo_value"
}
但我想不出如何获取这些属性的原始值,与像〜/人(“UID”)/富/ $值的URL
如果我尝试一下,结果是这样的:
{
"error": {
"code": "",
"message": "No HTTP resource was found that matches the request URI 'http://myServer/Person('uid')/foo/$value'.",
"innererror": {
"message": "No routing convention was found to select an action for the OData path with template '~/entityset/key/dynamicproperty/$value'.",
"type": "",
"stacktrace": ""
}
}
}
我该如何路由以访问这些原始值?还是有一种方法或其他方法可以处理它?
- Sam Xu的回答
感谢您的例子后编辑,它就像一个魅力。我已经按照你的点1和2点3个样品,如果它可以帮助别人,这是一个典型的Web API的注册方法的改编版:
public static void Register(HttpConfiguration config) {
// Custom routing for dynamic attributes raw values
var routings = ODataRoutingConventions.CreateDefault();
routings.Insert(0, new DynamicRawValueRoutingConvention());
// Our model
ODataModelBuilder builder = new ODataConventionModelBuilder();
builder.EntitySet<Person>("Person");
// ...
// Old way
//config.MapODataServiceRoute(
// routeName: "myDefaultRouteName",
// routePrefix: null,
// model: builder.GetEdmModel()
//);
// New way with Sam's samples
config.MapODataServiceRoute(
"myDefaultRouteName",
null,
configureAction =>
configureAction.AddService(ServiceLifetime.Singleton, sp => builder.GetEdmModel()).AddService<IEnumerable<IODataRoutingConvention>>(ServiceLifetime.Singleton, sp => routings)
);
var formatters = ODataMediaTypeFormatters.Create();
foreach (var oDataMediaTypeFormatter in formatters) {
oDataMediaTypeFormatter.MediaTypeMappings.Insert(0, new ODataDynamicValueMediaTypeMapping());
}
config.Formatters.InsertRange(0, formatters);
}
会'〜/人( 'UID')?$选择= foo'是否足够呢? – GWigWam
不幸的是没有,因为除非技术上不可行,否则(我无法回答这个问题),客户期望使用非经典动态属性的“经典”语法 –