C# 加载配置文件

//加载配置文件
var builder = new ConfigurationBuilder()
.SetBasePath(Directory.GetCurrentDirectory())
.AddJsonFile("appsettings.json", optional: false, reloadOnChange: true)
.AddEnvironmentVariables();
ConfigurationManager.Configuration = builder.Build();

#region 反射加载程序集dll到运行时，.net core 2.0不支持引用第三方DLL直接加载 TODO 升级2.0.3 或者Nuget加载
Assembly entry = Assembly.GetEntryAssembly();
string dir = Path.GetDirectoryName(entry.Location);
var dllPath = dir + "\\MongoRepository.Net45.dll";
AssemblyLoadContext.Default.LoadFromAssemblyPath(dllPath);
#endregion

//注册IOC=Autofac  类

public class IocManager

{

private static ILifetimeScope _container;

public static void Initialize(params string[] assemblyNamePattens)

{

ContainerBuilder builder = new ContainerBuilder();

_container = builder.Build();

Initialize(_container, assemblyNamePattens);

}

public static void Initialize(ILifetimeScope container, params string[] assemblyNamePattens)

{

container.Update(builder =>

{

//运行绝对路径=AppDomain.CurrentDomain.BaseDirectory

Directory.GetFiles(AppDomain.CurrentDomain.BaseDirectory, "*.dll")

.Where(it => Regex.IsMatch(it, $@"(OA|{assemblyNamePattens.Join("|")})\.[^\\]*\.dll"))

.Each(it => AppDomain.CurrentDomain.Load(Path.GetFileNameWithoutExtension(it)));

//注册IOC

var assembiles = AppDomain.CurrentDomain.GetAssemblies();

//组件筛选使用

/* var assembiles = AppDomain.CurrentDomain.GetAssemblies()//GetReferencingAssemblies()
                        .Where(it => Regex.IsMatch(Path.GetFileNameWithoutExtension(it.Location) + ".dll",
                        $@"(OA|{assemblyNamePattens.Join("|")})\.[^\\]*\.dll")).ToArray(); */

builder.RegisterAssemblyTypes(assembiles)

.Except<IDependencySingleton>()

.Except<IDependencyRequestSingleton>()

.As<IDependency>().AsSelf().AsImplementedInterfaces();

builder.RegisterAssemblyTypes(assembiles)

.Except<IDependencyRequestSingleton>()

.As<IDependencySingleton>().AsSelf().AsImplementedInterfaces().SingleInstance();

builder.RegisterAssemblyTypes(AppDomain.CurrentDomain.GetAssemblies())

.As<IDependencyRequestSingleton>().AsSelf().AsImplementedInterfaces()

.InstancePerLifetimeScope();

});

}

public static ILifetimeScope GetContainer()

{

return _container;

}

public static void SetContainer(ILifetimeScope container)
       {
             _container = container;
       }

}