我正在尝试为我的Edmmodel添加备用键,以后可以使用oData url对其进行查询。我尝试在启动文件中配置RouteBuilder,并在模型构建器中添加了备用ksys。但是尽管做了所有的工作,当我尝试访问URL https://localhost:44357/odata/books(ISBN='978-0-321-87758-1'时,我仍然收到404 Not Found。 下面是详细信息
这是我的Startup.cs文件
public void Configure(IApplicationBuilder app, IHostingEnvironment env)
{
if (env.IsDevelopment())
{
app.UseDeveloperExceptionPage();
}
else
{
app.UseHsts();
}
app.UseHttpsRedirection();
app.UseMvc(routeBuilder =>
{
routeBuilder.Select().Expand().Filter().OrderBy().MaxTop(100).Count();
IEdmModel model = GetEdmModel();
routeBuilder.MapODataServiceRoute("odataRoute", "odata", containerBuilder =>
{
containerBuilder.AddDefaultODataServices()
.AddService<IEdmModel>(Microsoft.OData.ServiceLifetime.Singleton,
s => model)
.AddService<IEnumerable<IODataRoutingConvention>>(Microsoft.OData.ServiceLifetime.Singleton,
serviceProvider => ODataRoutingConventions.CreateDefaultWithAttributeRouting("odataRoute", routeBuilder))
.AddService<ODataUriResolver>(Microsoft.OData.ServiceLifetime.Singleton,
s => new AlternateKeysODataUriResolver(model));
});
});
}
private IEdmModel GetEdmModel()
{
ODataConventionModelBuilder builder = new ODataConventionModelBuilder();
builder.EntitySet<Book>("Books");
builder.EntitySet<Press>("Press");
var model = builder.GetEdmModel();
//Add alternate keys
// first, find entity type
IEdmEntityType booksEntityType = model.FindDeclaredEntitySet("Books").EntityType();
// now find the properties we want to use as alternateKey
var isbnEdmProp = booksEntityType.FindProperty("ISBN");
// and finally add the annotation
((EdmModel)model).AddAlternateKeyAnnotation(booksEntityType, new Dictionary<string, IEdmProperty> {
{
"ISBN", isbnEdmProp
}
});
return model;
}
BooksController.cs
[EnableQuery]
public IActionResult GetByISBN(string keyISBN)
{
return Ok(_db.Books.FirstOrDefault(c => c.ISBN == keyISBN));
}
我的问题
1. When I try to access using alternate key with the url
https://localhost:44357/odata/books(ISBN='978-0-321-87758-1') I am
receiving 404 Not Found response. Can someone tell me what am I missing here ?
2. What I also noticed that with these changes even the basic routes like simple GET https://localhost:44357/odata/books is also not working
更新
我能够隔离出以下变化正在打破所有现有路线。配置备用键的正确方法是什么?有人可以帮我以下配置有什么问题吗
.AddService(Microsoft.OData.ServiceLifetime.Singleton,
s =>新的AlternateKeysODataUriResolver(model));
答案 0 :(得分:0)
尝试以下选项之一:
调整网址中的大小写:https://localhost:44357/odata/ B ooks(ISBN ='978-0-321-87758-1')
在创建AlternateKeysODataUriResolver实例时显式管理区分大小写:
.AddService<ODataUriResolver>(Microsoft.OData.ServiceLifetime.Singleton, s =>
{
var resolver = new AlternateKeysODataUriResolver(model);
resolver.EnableCaseInsensitive = true;
return resolver;
})