Question

我有一个ASP.NET Core 2.1应用程序，在几个.NET Standard 2.0项目的解决方案中引用。我想使用反射并使用实现的特定接口获取所有类型和过滤器，但它只返回通用接口，因此IsHandlerInterface方法永远不会返回true。

List<AssemblyName> allAssemblies = Assembly.GetExecutingAssembly()
                                                        .GetReferencedAssemblies()
                                                        .Where(p => p.FullName.StartsWith("Something"))
                                                        .ToList(); // I get 4 assemblies here with the correct results

List<Type> allAssembliesTypes = allAssemblies
                                      .Select(a => a.GetType())
                                      .ToList(); // Retrieving the types

List<Type> handlerTypes = allAssembliesTypes
                                            // typeof(ICommand).Assembly.GetTypes()
                                            .Where(x => x.GetInterfaces().Any(y => IsHandlerInterface(y))) // Here I don't see the handler interface, only the generic ones, see method below
                                            .Where(x => x.Name.EndsWith("Handler")) // Maybe redundant
                                            .ToList();

private static bool IsHandlerInterface(Type type)
        {
            if (!type.IsGenericType)
                return false;

            Type typeDefinition = type.GetGenericTypeDefinition();

            return typeDefinition == typeof(ICommandHandler<>) || typeDefinition == typeof(IQueryHandler<,>);
        }

下面的处理程序示例。

public sealed class SampleCommandHandler : ICommandHandler<SampleCommand>
    {
        public SampleCommandHandler() // inject services
        {
        }

        public Task<Result> HandleAsync(SampleCommand command)
        {
            // command logic
            // preconditions handle
            // trigger events
            throw new NotImplementedException();
        }
    }

Answer 1

此代码返回表示let str = " Name1, Name2, Name3 "; let arr = str.replace(/\s+/g,'').split(','); console.log(arr)和ICommandHandler<>的所有类型

IQueryHandler<>

Answer 2

我能够使用下面的代码来获得所有带有引用的程序集。

List<Assembly> all = Assembly.GetEntryAssembly()
                             .GetReferencedAssemblies()
                             .Select(Assembly.Load);

Answer 3

AppDomain.CurrentDomain.GetAssemblies().SelectMany(x => x.GetTypes()).Where(t => typeof(ResourceDictionary).IsAssignableFrom(t)).ToList();

获取项目中引用的所有程序集中的所有接口类型

3 个答案: