仔细观察后,似乎可以(更容易)使用操作过滤器。
这方面的一些东西应该可以工作(未经测试,只是确保没有编译错误)。
using System;
using System.Collections.Generic;
using System.Linq;
using System.Reflection;
using System.Text;
using System.Threading.Tasks;
using Microsoft.AspNetCore.Mvc.Controllers;
using Swashbuckle.AspNetCore.Swagger;
using Swashbuckle.AspNetCore.SwaggerGen;
namespace MyCompany.Common.Web.Swagger.OperationFilters
{
public class GenericOperationFilter : IOperationFilter
{
public void Apply(Operation operation, OperationFilterContext context)
{
if (context.ApiDescription.ActionDescriptor is ControllerActionDescriptor controllerDescriptor)
{
var baseType = controllerDescriptor.ControllerTypeInfo.BaseType?.GetTypeInfo();
// Get type and see if its a generic controller with a single type parameter
if (baseType == null || (!baseType.IsGenericType && baseType.GenericTypeParameters.Length == 1))
return;
if (context.ApiDescription.HttpMethod == "GET" && !operation.Responses.ContainsKey("200"))
{
var typeParam = baseType.GenericTypeParameters[0];
// Get the schema of the generic type. In case it's not there, you will have to create a schema for that model
// yourself, because Swagger may not have added it, because the type was not declared on any of the models
string typeParamFriendlyId = typeParam.FriendlyId();
if (!context.SchemaRegistry.Definitions.TryGetValue(typeParamFriendlyId, out Schema typeParamSchema))
{
// Schema doesn't exist, you need to create it yourself, i.e. add properties for each property of your model.
// See OpenAPI/Swagger Specifications
typeParamSchema = context.SchemaRegistry.GetOrRegister(typeParam);
// add properties here, without it you won't have a model description for this type
}
// for any get operation for which no 200 response exist yet in the document
operation.Responses.Add("200", new Response
{
Description = "Success",
Schema = new Schema { Ref = typeParamFriendlyId }
});
}
}
}
}
}
它做什么?
IOperationFilter
ControllerActionDescriptor
如果是,请检查控制器类型。
如果您愿意,可以将其缩小到一种特定类型。我刚刚获取了从另一个类继承的每个控制器,它的基类型是泛型的
一个
通用参数。
最后,它检查它是否是“Get”操作(post、put、delete通常不返回模型,只返回状态代码/错误响应),然后检查类型是否已经在Swagger/OpenAPI模式定义中。如果模型在那里,请阅读它的模式并在响应中引用它。
如果模型未在模式注册表中注册,则会变得更复杂。您需要使用反射并构建模式文件,将其添加到存储库(在
context.SchemaRegistry.GetOrRegister(typeParam)
打电话),然后像上面那样引用它。
您可以获得有关OpenAPI 2.0规范的更多信息。