[WebApplicationSample] 升级到 netcoreapp2.2

samples/WebApplicationSample/Startup.cs

@@ -76,7 +76,7 @@ namespace WebApplicationSample
                 opt.TextEncoderSettings = new TextEncoderSettings(UnicodeRanges.All);
             });
 
-            services.AddMvc().SetCompatibilityVersion(CompatibilityVersion.Version_2_1);
+            services.AddMvc().SetCompatibilityVersion(CompatibilityVersion.Version_2_2);
         }
 
         // This method gets called by the runtime. Use this method to configure the HTTP request pipeline.

samples/WebApplicationSample/WebApplicationSample.csproj

@@ -1,14 +1,14 @@
 <Project Sdk="Microsoft.NET.Sdk.Web">
 
   <PropertyGroup>
-    <TargetFramework>netcoreapp2.1</TargetFramework>
+    <TargetFramework>netcoreapp2.2</TargetFramework>
     <UserSecretsId>a59ca38e-9b52-44fe-b3d2-8cb5a1641623</UserSecretsId>
     <Version>1.0.0</Version>
   </PropertyGroup>
 
   <ItemGroup>
     <PackageReference Include="Microsoft.AspNetCore.App" />
-    <PackageReference Include="Microsoft.VisualStudio.Web.CodeGeneration.Design" Version="2.1.6" />
+    <PackageReference Include="Microsoft.VisualStudio.Web.CodeGeneration.Design" Version="2.2.0" />
   </ItemGroup>
 
   <ItemGroup>