如何处理 .net core 3.1 自包含单文件发布的 Appsettings [英] How to handle Appsettings for .net core 3.1 self contained single file publish

问题描述

我有一个作为 Windows 服务托管的新 .NET Core 3.1 工作程序类.我正在使用模板创建的默认 appsettings.json 和 appsettings.environment.json.在 ConfigureServices 期间从 hostContext 加载 appsettings

I have a new .NET Core 3.1 worker class that is hosted as a Windows Service. I am using the default appsettings.json and appsettings.environment.json that were created by the template. The appsettings is loaded from the hostContext during ConfigureServices

.ConfigureServices((hostContext, services) =>
   {
      services.AddHostedService<Worker>();
      services.Configure<BasicSettings>(hostContext.Configuration.GetSection("AppSettings"));
   });

我希望能够在部署后编辑 appsettings，以便我可以在生产中更改设置.它在我的机器上调试期间正常工作.我更新了 csproj 文件以使用以下代码来尝试使 appsettings.json 不包含在单个文件中.

I want to be able to edit the appsettings after it is deployed so that I can change settings in production. It works correctly during debugging on my machine. I updated the csproj file to have the following code to try and make the appsettings.json not get included in the Single file.

    <None Include="appsettings.json">
      <CopyToOutputDirectory>Always</CopyToOutputDirectory>
      <CopyToPublishDirectory>Always</CopyToPublishDirectory>
      <ExcludeFromSingleFile>true</ExcludeFromSingleFile>
    </None>
    <None Include="appsettings.Development.json;appsettings.Production.json;">
      <CopyToOutputDirectory>Always</CopyToOutputDirectory>
      <CopyToPublishDirectory>Always</CopyToPublishDirectory>
      <DependentUpon>appsettings.json</DependentUpon>
      <ExcludeFromSingleFile>true</ExcludeFromSingleFile>
    </None>
  </ItemGroup>

在添加这个之后，发布过程确实创建了单个 exe 以及 3 个 appsettings.json 文件，但没有解决它.

After adding this the publish process does create the single exe as well as the 3 appsettings.json files but does not solve it.

当 Windows 服务启动时，它会将单个 exe 扩展到文件夹 C:UsersServiceLogonUserAppDataLocalTemp.netServiceNameSomeRandomThing，其中包含发布时项目中存在的 appsettings.json.不是复制到 exe 旁边的 appsettings.json.如果我删除此文件夹，它会重新创建，但会再次使用发布时存在的 appsettings.json.如何使用单个 exe 发布它如何从同一文件夹中读取 appsettings.json 以便在发布后可以编辑该文件?

When the windows service starts up it expands the single exe to the folder C:UsersServiceLogonUserAppDataLocalTemp.netServiceNameSomeRandomThing and this has the appsettings.json that exists in the project at publish. Not the appsettings.json that is copied next to the exe. If I delete this folder, it is recreated but again with the appsettings.json that existed at publish. How with a single exe publish can it read the appsettings.json from the same folder so that the file can be edited in after publish?

推荐答案

我也遇到了同样的问题，并通过项目文件中的这个简单更改解决了.

I too faced the same problem and solved with this simple change in the project file.

<None Include="appsettings.json">
  <CopyToOutputDirectory>Always</CopyToOutputDirectory>
  <CopyToPublishDirectory>Always</CopyToPublishDirectory>
  <ExcludeFromSingleFile>false</ExcludeFromSingleFile>
</None>
<None Include="appsettings.Development.json;appsettings.Production.json;">
  <CopyToOutputDirectory>Always</CopyToOutputDirectory>
  <CopyToPublishDirectory>Always</CopyToPublishDirectory>
  <DependentUpon>appsettings.json</DependentUpon>
  <ExcludeFromSingleFile>false</ExcludeFromSingleFile>
</None>

这会将 appsettings.json 和其他配置 JSON 文件捆绑到单个文件中，并在运行时解压到临时位置.

This will bundle the appsettings.json and other configuration JSON files into the Single file and will be unpacked to the temp location when ran.

参考这里.

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