.NET Core單文件發佈靜態編譯AOT CoreRT，將.NET Core應用打包成一個可執行文件幷包含運行時。html
支持Windows, MacOS and Linux x64 w/ RyuJIT codegen。git
示例項目：github
https://github.com/dotnet/corert/tree/master/samples/WebApiweb
下面來實際體驗。json
首先確保安裝C++編譯環境，以及.NET Core 2.0 以上版本SDK。api
新建WebAPI應用
打開命令提示符，輸入以下：併發
dotnet new webapi -o zeroapiapp
cd zeroapiasp.net
新建WebAPI應用。ide
添加CoreRT到項目
目前CoreRT仍是alpha版，在myget上有包。
首先添加一個nuget.config
dotnet new nuget
而後在 <packageSources> 節點添加以下：
<add key="dotnet-core" value="https://dotnet.myget.org/F/dotnet-core/api/v3/index.json" />
<add key="nuget.org" value="https://api.nuget.org/v3/index.json" protocolVersion="3" />
接着添加Microsoft.DotNet.ILCompiler包引用：
dotnet add package Microsoft.DotNet.ILCompiler -v 1.0.0-alpha-*
替換默認services並處理反射
打開Startup.cs ,將 services.AddMvc(); 替換成 services.AddMvcCore().AddJsonFormatters();
接着建立一個rd.xml 配置文件，用於反射處理運行時，確保反射程序集編譯到程序中。
rd.xml配置文件以下：
<Directives>
<Application>
<Assembly Name="zeroapi" Dynamic="Required All" />
<Assembly Name="Microsoft.AspNetCore.Server.Kestrel.Core">
<Type Name="Microsoft.AspNetCore.Server.Kestrel.Core.KestrelServer" Dynamic="Required All" />
<Type Name="Microsoft.AspNetCore.Server.Kestrel.Core.Internal.KestrelServerOptionsSetup" Dynamic="Required All" />
</Assembly>
<Assembly Name="Microsoft.AspNetCore.Server.Kestrel" Dynamic="Required All"/>
<Assembly Name="Microsoft.AspNetCore.Server.Kestrel.Transport.Libuv">
<Type Name="Microsoft.AspNetCore.Server.Kestrel.Transport.Libuv.LibuvTransportFactory" Dynamic="Required All" />
<Type Name="Microsoft.AspNetCore.Server.Kestrel.Transport.Libuv.LibuvTransportOptions" Dynamic="Required All" />
</Assembly>
<Assembly Name="Microsoft.Extensions.DependencyInjection" Dynamic="Required All">
<Type Name="Microsoft.Extensions.DependencyInjection.DefaultServiceProviderFactory" Dynamic="Required All" />
<Type Name="Microsoft.Extensions.DependencyInjection.ServiceLookup.CallSiteExpressionBuilder" Dynamic="Required All" />
<Type Name="Microsoft.Extensions.DependencyInjection.ServiceLookup.CallSiteRuntimeResolver" Dynamic="Required All" />
<Type Name="Microsoft.Extensions.DependencyInjection.ServiceLookup.CallSiteValidator" Dynamic="Required All" />
</Assembly>
<Assembly Name="Microsoft.Extensions.Options">
<Type Name="Microsoft.Extensions.Options.OptionsManager`1[[Microsoft.AspNetCore.Server.Kestrel.Core.KestrelServerOptions,Microsoft.AspNetCore.Server.Kestrel.Core]]" Dynamic="Required All" />
<Type Name="Microsoft.Extensions.Options.OptionsFactory`1[[Microsoft.AspNetCore.Server.Kestrel.Core.KestrelServerOptions,Microsoft.AspNetCore.Server.Kestrel.Core]]" Dynamic="Required All" />
<Type Name="Microsoft.Extensions.Options.OptionsMonitor`1[[Microsoft.Extensions.Logging.Console.ConsoleLoggerOptions,Microsoft.Extensions.Logging.Console]]" Dynamic="Required All" />
</Assembly>
<Assembly Name="Microsoft.AspNetCore.Mvc.Core" Dynamic="Required All" />
<Assembly Name="Microsoft.AspNetCore.Routing">
<Type Name="Microsoft.AspNetCore.Routing.Internal.RoutingMarkerService" Dynamic="Required All" />
<Type Name="Microsoft.AspNetCore.Builder.RouterMiddleware" Dynamic="Required All" />
<Type Name="Microsoft.AspNetCore.Routing.Tree.TreeRouteBuilder" Dynamic="Required All" />
<Type Name="Microsoft.AspNetCore.Routing.DefaultInlineConstraintResolver" Dynamic="Required All" />
<Type Name="Microsoft.AspNetCore.Routing.RouteOptions" Dynamic="Required All" />
</Assembly>
<Assembly Name="Microsoft.AspNetCore.Mvc.Formatters.Json">
<Type Name="Microsoft.AspNetCore.Mvc.Formatters.Json.Internal.MvcJsonMvcOptionsSetup" Dynamic="Required All" />
<Type Name="Microsoft.AspNetCore.Mvc.MvcJsonOptions" Dynamic="Required All" />
</Assembly>
<Assembly Name="Microsoft.AspNetCore.Authorization">
<Type Name="Microsoft.AspNetCore.Authorization.DefaultAuthorizationPolicyProvider" Dynamic="Required All" />
<Type Name="Microsoft.AspNetCore.Authorization.AuthorizationOptions" Dynamic="Required All" />
</Assembly>
<Assembly Name="Microsoft.AspNetCore.Http">
<Type Name="Microsoft.AspNetCore.Http.HttpContextFactory" Dynamic="Required All" />
</Assembly>
<Assembly Name="Microsoft.AspNetCore.Hosting" Dynamic="Required All">
<Type Name="Microsoft.AspNetCore.Hosting.Internal.ApplicationLifetime" Dynamic="Required All" />
</Assembly>
<Assembly Name="Microsoft.Extensions.Logging.Abstractions">
<Type Name="Microsoft.Extensions.Logging.Logger`1[[Microsoft.AspNetCore.Hosting.Internal.WebHost,Microsoft.AspNetCore.Hosting]]" Dynamic="Required All" />
</Assembly>
<Assembly Name="Microsoft.Extensions.Logging">
<Type Name="Microsoft.Extensions.Logging.LoggerFactory" Dynamic="Required All" />
</Assembly>
<Assembly Name="Microsoft.Extensions.Logging.Console">
<Type Name="Microsoft.Extensions.Logging.Console.ConsoleLoggerOptions" Dynamic="Required All" />
<Type Name="Microsoft.Extensions.Logging.Console.ConsoleLoggerProvider" Dynamic="Required All" />
</Assembly>
<Assembly Name="Microsoft.Extensions.Logging.Debug">
<Type Name="Microsoft.Extensions.Logging.Debug.DebugLogger" Dynamic="Required All" />
<Type Name="Microsoft.Extensions.Logging.Debug.DebugLoggerProvider" Dynamic="Required All" />
</Assembly>
<Assembly Name="System.Linq.Expressions">
<Type Name="System.Linq.Expressions.ExpressionCreator`1[[Newtonsoft.Json.Serialization.ObjectConstructor`1[[System.Object,System.Private.CoreLib]],Newtonsoft.Json]]" Dynamic="Required All" />
<Type Name="System.Linq.Expressions.ExpressionCreator`1[[System.Func`2[[System.Object,System.Private.CoreLib],[System.Object,System.Private.CoreLib]],System.Private.CoreLib]]" Dynamic="Required All" />
</Assembly>
<Assembly Name="Microsoft.Extensions.ObjectPool">
<Type Name="Microsoft.Extensions.ObjectPool.DefaultObjectPoolProvider" Dynamic="Required All" />
</Assembly>
<Assembly Name="Newtonsoft.Json">
<Type Name="Newtonsoft.Json.Serialization.ObjectConstructor`1[[System.Object,System.Private.CoreLib]]" Dynamic="Required All" />
</Assembly>
<Assembly Name="System.ComponentModel.TypeConverter">
<Type Name="System.ComponentModel.TypeConverter" Dynamic="Required All" />
<Type Name="System.ComponentModel.StringConverter" Dynamic="Required All" />
<Type Name="System.ComponentModel.Int32Converter" Dynamic="Required All" />
</Assembly>
<Assembly Name="Microsoft.Extensions.Configuration.Json">
<Type Name="Microsoft.Extensions.Configuration.Json.JsonConfigurationSource" Dynamic="Required All" />
</Assembly>
</Application>
</Directives>
其中若是你要替換成本身的程序，更改 <Assembly Name="zeroapi" Dynamic="Required All" /> 中的Name。
打開zeroapi.csproj
在<PropertyGroup>節點下將 <RdXmlFile>rd.xml</RdXmlFile> 加入。
接着將 <PackageReference Include="Microsoft.AspNetCore.All" Version="2.0.3" /> 替換成以下：
<PackageReference Include="Microsoft.AspNetCore" Version="2.0.1" /><PackageReference Include="Microsoft.AspNetCore.Mvc.Core" Version="2.0.1" /><PackageReference Include="Microsoft.AspNetCore.Mvc.Formatters.Json" Version="2.0.1" />
接着將 ValuesController 更改一下，確保功能正常，以下：
public class ValuesController
{
[HttpGet("/")]
public string Hello() => "Hello World! LineZero AOT";
// GET api/values
[HttpGet("/api/values")]
public IEnumerable<string> Get()
{
return new string[] { "AOT", "CoreRT" };
}
// GET api/values/5
[HttpGet("/api/values/{id}")]
public string Get(int id)
{
return "Your value is " + id;
}
}
程序改造完成，接着最重要的發佈。
還原併發布
發佈以前，使用dotnet run 確保功能正常運行。
發佈請打開 x64 Native Tools Command Prompt for VS 2017 ，注意必定在此命令行發佈。在開始菜單找到 Visual Studio 2017，打開就能找到。
發佈命令仍是 dotnet publish -r <RID> -c <Configuration>
這裏發佈Windows 64位 dotnet publish -r win-x64 -c release，初次的話會默認還原對應的包，須要一些時間。
發佈完成後，打開bin\x64\release\netcoreapp2.0\win-x64\publish 文件夾，裏面zeroapi.exe即爲最終文件，執行便可。
能夠看到最終大小爲21m左右。而後訪問http://localhost:5000/ 如圖：
控制檯Demo
新建一個控制檯應用，使用AOT發佈。
單純控制檯，沒有反射的內容，無須要rd.xml 文件。
代碼以下：
class Program
{
static void Main(string[] args)
{
Console.WriteLine("Hello World!");
Console.WriteLine("LineZero AOT Demo！");
Console.ReadKey();
}
}
最終 dotnet publish -r win-x64 -c release 發佈
最終單個文件大小不到4m！
目前該技術仍是早期版本，期待微軟最終帶到正式版。
GitHub：https://github.com/dotnet/corert