Question

不确定在Azure Function中如何解析程序集引用，但以下代码在控制台应用程序中能正常工作（我已经尝试过使用.net核心控制台和.net 4.6.1控制台）。如果我尝试在功能应用程序中使用相同的代码，则会收到我在代码注释中提到的错误消息。我正在使用最新版本的（15.10.2046.0）函数和Web作业工具。

注意：我已经将myplugin.dll手动复制到了功能应用程序的bin文件夹中。我在控制台应用程序上执行的相同代码相同的事情。

var assemblyRoot = Path.GetDirectoryName(Assembly.GetExecutingAssembly().Location);
var pluginPath = Directory.GetFiles(assemblyRoot, $"myplugin.dll").FirstOrDefault();

var pluginAssembly = Assembly.LoadFile(pluginPath);

var builder = new ContainerBuilder(); // I am using Autofac
builder.RegisterAssemblyTypes(pluginAssembly).AsImplementedInterfaces().SingleInstance();

var container = builder.Build();
 // Here I am getting errors like "Unable to find assembly '<assembly>'. Are you missing a private assembly file?" for various referenced assemblies like automapper, MongoDB.Bson etc.

var plugIn = container.Resolve<IPlugin>(); 
// Here I am getting "'IPlugIn' has not been registered. To avoid this exception, either register a component to provide the service, check for service registration using IsRegistered(), or use the ResolveOptional() method to resolve an optional dependency.'"

任何帮助或见识将不胜感激。谢谢。

Answer 1

V1（NET 4.6）：

https://blog.wille-zone.de/post/azure-functions-dependency-injection/

https://blog.wille-zone.de/post/azure-functions-proper-dependency-injection/

http://codingsoul.de/2018/01/19/azure-function-dependency-injection-with-autofac/

V2（NET核心）：

https://blog.wille-zone.de/post/dependency-injection-for-azure-functions/

http://codingsoul.de/2018/06/12/azure-functions-dependency-injection-autofac-on-functions-nuget-package/

Autofac动态程序集绑定在Azure Functions中不起作用

1 个答案: