如何让我的 .NET Core 3 单文件应用找到 appsettings.json 文件？
How can I get my .NET Core 3 single file app to find the appsettings.json file?
单文件 .Net Core 3.0 Web API 应用程序应如何配置以查找与单文件应用程序构建到的同一目录中的 appsettings.json 文件？
宁运行后
dotnet publish -r win-x64 -c Release /p:PublishSingleFile=true
目录如下所示：
XX/XX/XXXX XX:XX PM <DIR> .
XX/XX/XXXX XX:XX PM <DIR> ..
XX/XX/XXXX XX:XX PM 134 appsettings.json
XX/XX/XXXX XX:XX PM 92,899,983 APPNAME.exe
XX/XX/XXXX XX:XX PM 541 web.config
3 File(s) 92,900,658 bytes
但是，尝试 运行 APPNAME.exe 会导致以下错误
An exception occurred, System.IO.FileNotFoundException: The configuration file 'appsettings.json' was not found and is not optional. The physical path is 'C:\Users\USERNAME\AppData\Local\Temp\.net\APPNAME\kyl3yc02.5zs\appsettings.json'.
at Microsoft.Extensions.Configuration.FileConfigurationProvider.HandleException(ExceptionDispatchInfo info)
at Microsoft.Extensions.Configuration.FileConfigurationProvider.Load(Boolean reload)
at Microsoft.Extensions.Configuration.FileConfigurationProvider.Load()
at Microsoft.Extensions.Configuration.ConfigurationRoot..ctor(IList`1 providers)
at Microsoft.Extensions.Configuration.ConfigurationBuilder.Build()
at Microsoft.AspNetCore.Hosting.WebHostBuilder.BuildCommonServices(AggregateException& hostingStartupErrors)
at Microsoft.AspNetCore.Hosting.WebHostBuilder.Build()
...
我尝试了 的解决方案以及其他 Stack Overflow 问题。
我试图将以下内容传递给 SetBasePath()
Directory.GetCurrentDirectory()
environment.ContentRootPath
Path.GetDirectoryName(Assembly.GetEntryAssembly().Location)
每个都导致相同的错误。
问题的根源在于 PublishSingleFile 二进制文件被解压缩并且 运行 来自 temp 目录。
对于这个单文件应用程序，它查找的位置 appsettings.json 是以下目录：
C:\Users\USERNAME\AppData\Local\Temp\.net\APPNAME\kyl3yc02.5zs
以上所有方法都指向文件解压缩到的位置，这与 运行 来自的位置不同。
我在 GitHub here 上发现了一个标题为 PublishSingleFile excluding appsettings not working as expected 的问题。
这指向另一个问题 here 标题为 single file publish: AppContext.BaseDirectory doesn't point to apphost directory
其中，一个解决方案是尝试 Process.GetCurrentProcess().MainModule.FileName
以下代码将应用程序配置为查看 single-executable 应用程序 运行 来自的目录，而不是二进制文件被提取到的位置。
config.SetBasePath(GetBasePath());
config.AddJsonFile("appsettings.json", false);
GetBasePath() 实现：
private string GetBasePath()
{
using var processModule = Process.GetCurrentProcess().MainModule;
return Path.GetDirectoryName(processModule?.FileName);
}
如果您可以在可执行文件之外的运行时使用文件，那么您可以在 csproj 中标记您想要的文件。此方法允许在已知位置进行实时更改等。
<ItemGroup>
<None Include="appsettings.json">
<CopyToOutputDirectory>Always</CopyToOutputDirectory>
<CopyToPublishDirectory>Always</CopyToPublishDirectory>
<ExcludeFromSingleFile>true</ExcludeFromSingleFile>
</None>
<None Include="appsettings.Development.json;appsettings.QA.json;appsettings.Production.json;">
<CopyToOutputDirectory>Always</CopyToOutputDirectory>
<CopyToPublishDirectory>Always</CopyToPublishDirectory>
<DependentUpon>appsettings.json</DependentUpon>
<ExcludeFromSingleFile>true</ExcludeFromSingleFile>
</None>
</ItemGroup>
<ItemGroup>
<None Include="Views\Test.cshtml">
<CopyToOutputDirectory>Always</CopyToOutputDirectory>
<ExcludeFromSingleFile>true</ExcludeFromSingleFile>
</None>
</ItemGroup>
如果这是不可接受的，并且必须只有一个文件，我将单个文件提取的路径作为主机设置中的根路径传递。这允许配置和剃刀（我在之后添加）正常查找其文件。
// when using single file exe, the hosts config loader defaults to GetCurrentDirectory
// which is where the exe is, not where the bundle (with appsettings) has been extracted.
// when running in debug (from output folder) there is effectively no difference
var realPath = Directory.GetParent(System.Reflection.Assembly.GetExecutingAssembly().Location).FullName;
var host = Host.CreateDefaultBuilder(args).UseContentRoot(realPath);
请注意，要真正制作单个文件而不是 PDB，您还需要：
<DebugType>None</DebugType>
我的应用程序在 .NET Core 3.1 上，作为单个文件发布并作为 Windows 服务运行（这可能会或可能不会对问题产生影响）。
以 Process.GetCurrentProcess().MainModule.FileName 作为内容根的提议解决方案对我有用，但前提是我将内容根设置在正确的位置：
这个有效：
Host.CreateDefaultBuilder(args)
.UseWindowsService()
.ConfigureWebHostDefaults(webBuilder =>
{
webBuilder.UseContentRoot(...);
webBuilder.UseStartup<Startup>();
});
这不起作用：
Host.CreateDefaultBuilder(args)
.UseWindowsService()
.UseContentRoot(...)
.ConfigureWebHostDefaults(webBuilder =>
{
webBuilder.UseStartup<Startup>();
});
这是“搭载”答案区。
首先，通过我在此答案中引用的“RS”对上述答案投赞成票。这就是魔法。
简短的回答是“使用 RS 的回答并在所有正确的地方设置该值。”。我在下面显示了 2 个设置值的位置。
我的具体补充（其他地方未提及）是：
IConfigurationBuilder builder = new ConfigurationBuilder()
/* IMPORTANT line below */
.SetBasePath(realPath)
更长的答案是：
我需要以上答案，还有一些补充。
在我的输出中（我稍后会显示代码），这是上面两个答案之间的区别。
GetBasePath='/mybuilddir/myOut'
realPath='/var/tmp/.net/MyCompany.MyExamples.WorkerServiceExampleOne.ConsoleOne/jhvc5zwc.g25'
此处“/mybuilddir/myOut”是我发布单个文件的位置..在我的 docker 定义文件中。
GetBasePath 在使用 PublishSingleFile 时不起作用
“realPath”是我最终让它工作的方式。也就是上面的答案。 :
当您看到“realPath”的值时...那么一切都有意义了。 singleFile 正在某个地方被提取出来....并且 RS 找到了提取位置所在的神奇酱汁。
我将展示我的整个 Program.cs，这将为所有内容提供背景信息。
请注意，我必须在两个地方设置“realPath”。
我用
标记了重要的东西
/* IMPORTANT
下面的完整代码，（再次）借用了 RS 的答案：
using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using Microsoft.EntityFrameworkCore;
using Microsoft.Extensions.Configuration;
using Microsoft.Extensions.DependencyInjection;
using Microsoft.Extensions.Hosting;
using Microsoft.Extensions.Logging;
using Serilog;
namespace MyCompany.MyExamples.WorkerServiceExampleOne.ConsoleOne
{
public static class Program
{
public static async Task<int> Main(string[] args)
{
/* easy concrete logger that uses a file for demos */
Serilog.ILogger lgr = new Serilog.LoggerConfiguration()
.WriteTo.Console()
.WriteTo.File("MyCompany.MyExamples.WorkerServiceExampleOne.ConsoleOne.log.txt", rollingInterval: Serilog.RollingInterval.Day)
.CreateLogger();
try
{
/* look at the Project-Properties/Debug(Tab) for this environment variable */
string environmentName = Environment.GetEnvironmentVariable("ASPNETCORE_ENVIRONMENT");
Console.WriteLine(string.Format("ASPNETCORE_ENVIRONMENT='{0}'", environmentName));
Console.WriteLine(string.Empty);
string basePath = Directory.GetCurrentDirectory();
basePath = GetBasePath();
Console.WriteLine(string.Format("GetBasePath='{0}'", basePath));
Console.WriteLine(string.Empty);
// when using single file exe, the hosts config loader defaults to GetCurrentDirectory
// which is where the exe is, not where the bundle (with appsettings) has been extracted.
// when running in debug (from output folder) there is effectively no difference
/* IMPORTANT 3 lines below */
string realPath = Directory.GetParent(System.Reflection.Assembly.GetExecutingAssembly().Location).FullName;
Console.WriteLine(string.Format("realPath='{0}'", realPath));
Console.WriteLine(string.Empty);
IConfigurationBuilder builder = new ConfigurationBuilder()
/* IMPORTANT line below */
.SetBasePath(realPath)
.AddJsonFile("appsettings.json")
.AddJsonFile($"appsettings.{environmentName}.json", true, true)
.AddEnvironmentVariables();
IConfigurationRoot configuration = builder.Build();
IHost host = Host.CreateDefaultBuilder(args)
/* IMPORTANT line below */
.UseContentRoot(realPath)
.UseSystemd()
.ConfigureServices((hostContext, services) => AppendDi(services, configuration, lgr)).Build();
await host.StartAsync();
await host.WaitForShutdownAsync();
}
catch (Exception ex)
{
string flattenMsg = GenerateFullFlatMessage(ex, true);
Console.WriteLine(flattenMsg);
}
Console.WriteLine("Press ENTER to exit");
Console.ReadLine();
return 0;
}
private static string GetBasePath()
{
using var processModule = System.Diagnostics.Process.GetCurrentProcess().MainModule;
return Path.GetDirectoryName(processModule?.FileName);
}
private static string GenerateFullFlatMessage(Exception ex)
{
return GenerateFullFlatMessage(ex, false);
}
private static void AppendDi(IServiceCollection servColl, IConfiguration configuration, Serilog.ILogger lgr)
{
servColl
.AddSingleton(lgr)
.AddLogging();
servColl.AddHostedService<TimedHostedService>(); /* from https://docs.microsoft.com/en-us/aspnet/core/fundamentals/host/hosted-services?view=aspnetcore-3.1&tabs=visual-studio and/or https://github.com/dotnet/AspNetCore.Docs/blob/master/aspnetcore/fundamentals/host/hosted-services/samples/3.x/BackgroundTasksSample/Services/TimedHostedService.cs */
servColl.AddLogging(blder =>
{
blder.AddConsole().SetMinimumLevel(LogLevel.Trace);
blder.SetMinimumLevel(LogLevel.Trace);
blder.AddSerilog(logger: lgr, dispose: true);
});
Console.WriteLine("Using UseInMemoryDatabase");
servColl.AddDbContext<WorkerServiceExampleOneDbContext>(options => options.UseInMemoryDatabase(databaseName: "WorkerServiceExampleOneInMemoryDatabase"));
}
private static string GenerateFullFlatMessage(Exception ex, bool showStackTrace)
{
string returnValue;
StringBuilder sb = new StringBuilder();
Exception nestedEx = ex;
while (nestedEx != null)
{
if (!string.IsNullOrEmpty(nestedEx.Message))
{
sb.Append(nestedEx.Message + System.Environment.NewLine);
}
if (showStackTrace && !string.IsNullOrEmpty(nestedEx.StackTrace))
{
sb.Append(nestedEx.StackTrace + System.Environment.NewLine);
}
if (ex is AggregateException)
{
AggregateException ae = ex as AggregateException;
foreach (Exception aeflatEx in ae.Flatten().InnerExceptions)
{
if (!string.IsNullOrEmpty(aeflatEx.Message))
{
sb.Append(aeflatEx.Message + System.Environment.NewLine);
}
if (showStackTrace && !string.IsNullOrEmpty(aeflatEx.StackTrace))
{
sb.Append(aeflatEx.StackTrace + System.Environment.NewLine);
}
}
}
nestedEx = nestedEx.InnerException;
}
returnValue = sb.ToString();
return returnValue;
}
}
}
和我的 toplayer csproj 内容：
<Project Sdk="Microsoft.NET.Sdk">
<PropertyGroup>
<OutputType>Exe</OutputType>
<TargetFramework>netcoreapp3.1</TargetFramework>
</PropertyGroup>
<ItemGroup>
<!-- allows one line of code to get a txt file logger #simple #notForProduction -->
<PackageReference Include="Serilog" Version="2.9.0" />
<PackageReference Include="Serilog.Sinks.Console" Version="3.1.1" />
<PackageReference Include="Serilog.Sinks.File" Version="4.1.0" />
<PackageReference Include="Serilog.Extensions.Logging" Version="3.0.1" />
</ItemGroup>
<ItemGroup>
<PackageReference Include="Microsoft.Extensions.Logging.Console" Version="3.1.6" />
<PackageReference Include="Microsoft.EntityFrameworkCore.InMemory" Version="3.1.6" />
<PackageReference Include="Microsoft.Extensions.Configuration.EnvironmentVariables" Version="3.1.6" />
<PackageReference Include="Microsoft.Extensions.Configuration.Json" Version="3.1.6" />
<PackageReference Include="Microsoft.Extensions.Hosting.Systemd" Version="3.1.6" />
</ItemGroup>
<ItemGroup>
<None Update="appsettings.Development.json">
<CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
</None>
<None Update="appsettings.json">
<CopyToOutputDirectory>Always</CopyToOutputDirectory>
</None>
</ItemGroup>
</Project>
和我的 docker 踢球文件：
# See https://hub.docker.com/_/microsoft-dotnet-core-sdk/
FROM mcr.microsoft.com/dotnet/core/sdk:3.1 AS buildImage
WORKDIR /mybuilddir
# Copy sln and csprojs and restore as distinct layers
COPY ./src/Solutions/MyCompany.MyExamples.WorkerServiceExampleOne.sln ./src/Solutions/
COPY ./src/ConsoleOne/*.csproj ./src/ConsoleOne/
RUN dotnet restore ./src/Solutions/MyCompany.MyExamples.WorkerServiceExampleOne.sln
COPY ./src ./src
RUN dotnet publish "./src/ConsoleOne/MyCompany.MyExamples.WorkerServiceExampleOne.ConsoleOne.csproj" -c Release -o myOut -r linux-x64 /p:PublishSingleFile=true /p:DebugType=None --framework netcoreapp3.1
# See https://hub.docker.com/_/microsoft-dotnet-core-runtime/
FROM mcr.microsoft.com/dotnet/core/runtime:3.1 AS runtime
WORKDIR /myrundir
COPY --from=buildImage /mybuilddir/myOut ./
# this line is wrong for PublishSingleFile ### ENTRYPOINT ["dotnet", "MyCompany.MyExamples.WorkerServiceExampleOne.ConsoleOne.dll"]
#below is probably right...i was still working on this at time of posting this answer
./myOut/MyCompany.MyExamples.WorkerServiceExampleOne.ConsoleOne
单文件 .Net Core 3.0 Web API 应用程序应如何配置以查找与单文件应用程序构建到的同一目录中的 appsettings.json 文件？
宁运行后
dotnet publish -r win-x64 -c Release /p:PublishSingleFile=true
目录如下所示：
XX/XX/XXXX XX:XX PM <DIR> .
XX/XX/XXXX XX:XX PM <DIR> ..
XX/XX/XXXX XX:XX PM 134 appsettings.json
XX/XX/XXXX XX:XX PM 92,899,983 APPNAME.exe
XX/XX/XXXX XX:XX PM 541 web.config
3 File(s) 92,900,658 bytes
但是，尝试 运行 APPNAME.exe 会导致以下错误
An exception occurred, System.IO.FileNotFoundException: The configuration file 'appsettings.json' was not found and is not optional. The physical path is 'C:\Users\USERNAME\AppData\Local\Temp\.net\APPNAME\kyl3yc02.5zs\appsettings.json'.
at Microsoft.Extensions.Configuration.FileConfigurationProvider.HandleException(ExceptionDispatchInfo info)
at Microsoft.Extensions.Configuration.FileConfigurationProvider.Load(Boolean reload)
at Microsoft.Extensions.Configuration.FileConfigurationProvider.Load()
at Microsoft.Extensions.Configuration.ConfigurationRoot..ctor(IList`1 providers)
at Microsoft.Extensions.Configuration.ConfigurationBuilder.Build()
at Microsoft.AspNetCore.Hosting.WebHostBuilder.BuildCommonServices(AggregateException& hostingStartupErrors)
at Microsoft.AspNetCore.Hosting.WebHostBuilder.Build()
...
我尝试了
我试图将以下内容传递给 SetBasePath()
Directory.GetCurrentDirectory()environment.ContentRootPathPath.GetDirectoryName(Assembly.GetEntryAssembly().Location)
每个都导致相同的错误。
问题的根源在于 PublishSingleFile 二进制文件被解压缩并且 运行 来自 temp 目录。
对于这个单文件应用程序，它查找的位置 appsettings.json 是以下目录：
C:\Users\USERNAME\AppData\Local\Temp\.net\APPNAME\kyl3yc02.5zs
以上所有方法都指向文件解压缩到的位置，这与 运行 来自的位置不同。
我在 GitHub here 上发现了一个标题为 PublishSingleFile excluding appsettings not working as expected 的问题。
这指向另一个问题 here 标题为 single file publish: AppContext.BaseDirectory doesn't point to apphost directory
其中，一个解决方案是尝试 Process.GetCurrentProcess().MainModule.FileName
以下代码将应用程序配置为查看 single-executable 应用程序 运行 来自的目录，而不是二进制文件被提取到的位置。
config.SetBasePath(GetBasePath());
config.AddJsonFile("appsettings.json", false);
GetBasePath() 实现：
private string GetBasePath()
{
using var processModule = Process.GetCurrentProcess().MainModule;
return Path.GetDirectoryName(processModule?.FileName);
}
如果您可以在可执行文件之外的运行时使用文件，那么您可以在 csproj 中标记您想要的文件。此方法允许在已知位置进行实时更改等。
<ItemGroup>
<None Include="appsettings.json">
<CopyToOutputDirectory>Always</CopyToOutputDirectory>
<CopyToPublishDirectory>Always</CopyToPublishDirectory>
<ExcludeFromSingleFile>true</ExcludeFromSingleFile>
</None>
<None Include="appsettings.Development.json;appsettings.QA.json;appsettings.Production.json;">
<CopyToOutputDirectory>Always</CopyToOutputDirectory>
<CopyToPublishDirectory>Always</CopyToPublishDirectory>
<DependentUpon>appsettings.json</DependentUpon>
<ExcludeFromSingleFile>true</ExcludeFromSingleFile>
</None>
</ItemGroup>
<ItemGroup>
<None Include="Views\Test.cshtml">
<CopyToOutputDirectory>Always</CopyToOutputDirectory>
<ExcludeFromSingleFile>true</ExcludeFromSingleFile>
</None>
</ItemGroup>
如果这是不可接受的，并且必须只有一个文件，我将单个文件提取的路径作为主机设置中的根路径传递。这允许配置和剃刀（我在之后添加）正常查找其文件。
// when using single file exe, the hosts config loader defaults to GetCurrentDirectory
// which is where the exe is, not where the bundle (with appsettings) has been extracted.
// when running in debug (from output folder) there is effectively no difference
var realPath = Directory.GetParent(System.Reflection.Assembly.GetExecutingAssembly().Location).FullName;
var host = Host.CreateDefaultBuilder(args).UseContentRoot(realPath);
请注意，要真正制作单个文件而不是 PDB，您还需要：
<DebugType>None</DebugType>
我的应用程序在 .NET Core 3.1 上，作为单个文件发布并作为 Windows 服务运行（这可能会或可能不会对问题产生影响）。
以 Process.GetCurrentProcess().MainModule.FileName 作为内容根的提议解决方案对我有用，但前提是我将内容根设置在正确的位置：
这个有效：
Host.CreateDefaultBuilder(args)
.UseWindowsService()
.ConfigureWebHostDefaults(webBuilder =>
{
webBuilder.UseContentRoot(...);
webBuilder.UseStartup<Startup>();
});
这不起作用：
Host.CreateDefaultBuilder(args)
.UseWindowsService()
.UseContentRoot(...)
.ConfigureWebHostDefaults(webBuilder =>
{
webBuilder.UseStartup<Startup>();
});
这是“搭载”答案区。
首先，通过我在此答案中引用的“RS”对上述答案投赞成票。这就是魔法。
简短的回答是“使用 RS 的回答并在所有正确的地方设置该值。”。我在下面显示了 2 个设置值的位置。
我的具体补充（其他地方未提及）是：
IConfigurationBuilder builder = new ConfigurationBuilder()
/* IMPORTANT line below */
.SetBasePath(realPath)
更长的答案是：
我需要以上答案，还有一些补充。
在我的输出中（我稍后会显示代码），这是上面两个答案之间的区别。
GetBasePath='/mybuilddir/myOut'
realPath='/var/tmp/.net/MyCompany.MyExamples.WorkerServiceExampleOne.ConsoleOne/jhvc5zwc.g25'
此处“/mybuilddir/myOut”是我发布单个文件的位置..在我的 docker 定义文件中。
GetBasePath 在使用 PublishSingleFile 时不起作用
“realPath”是我最终让它工作的方式。也就是上面的答案。 :
当您看到“realPath”的值时...那么一切都有意义了。 singleFile 正在某个地方被提取出来....并且 RS 找到了提取位置所在的神奇酱汁。
我将展示我的整个 Program.cs，这将为所有内容提供背景信息。
请注意，我必须在两个地方设置“realPath”。
我用
标记了重要的东西/* IMPORTANT
下面的完整代码，（再次）借用了 RS 的答案：
using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using Microsoft.EntityFrameworkCore;
using Microsoft.Extensions.Configuration;
using Microsoft.Extensions.DependencyInjection;
using Microsoft.Extensions.Hosting;
using Microsoft.Extensions.Logging;
using Serilog;
namespace MyCompany.MyExamples.WorkerServiceExampleOne.ConsoleOne
{
public static class Program
{
public static async Task<int> Main(string[] args)
{
/* easy concrete logger that uses a file for demos */
Serilog.ILogger lgr = new Serilog.LoggerConfiguration()
.WriteTo.Console()
.WriteTo.File("MyCompany.MyExamples.WorkerServiceExampleOne.ConsoleOne.log.txt", rollingInterval: Serilog.RollingInterval.Day)
.CreateLogger();
try
{
/* look at the Project-Properties/Debug(Tab) for this environment variable */
string environmentName = Environment.GetEnvironmentVariable("ASPNETCORE_ENVIRONMENT");
Console.WriteLine(string.Format("ASPNETCORE_ENVIRONMENT='{0}'", environmentName));
Console.WriteLine(string.Empty);
string basePath = Directory.GetCurrentDirectory();
basePath = GetBasePath();
Console.WriteLine(string.Format("GetBasePath='{0}'", basePath));
Console.WriteLine(string.Empty);
// when using single file exe, the hosts config loader defaults to GetCurrentDirectory
// which is where the exe is, not where the bundle (with appsettings) has been extracted.
// when running in debug (from output folder) there is effectively no difference
/* IMPORTANT 3 lines below */
string realPath = Directory.GetParent(System.Reflection.Assembly.GetExecutingAssembly().Location).FullName;
Console.WriteLine(string.Format("realPath='{0}'", realPath));
Console.WriteLine(string.Empty);
IConfigurationBuilder builder = new ConfigurationBuilder()
/* IMPORTANT line below */
.SetBasePath(realPath)
.AddJsonFile("appsettings.json")
.AddJsonFile($"appsettings.{environmentName}.json", true, true)
.AddEnvironmentVariables();
IConfigurationRoot configuration = builder.Build();
IHost host = Host.CreateDefaultBuilder(args)
/* IMPORTANT line below */
.UseContentRoot(realPath)
.UseSystemd()
.ConfigureServices((hostContext, services) => AppendDi(services, configuration, lgr)).Build();
await host.StartAsync();
await host.WaitForShutdownAsync();
}
catch (Exception ex)
{
string flattenMsg = GenerateFullFlatMessage(ex, true);
Console.WriteLine(flattenMsg);
}
Console.WriteLine("Press ENTER to exit");
Console.ReadLine();
return 0;
}
private static string GetBasePath()
{
using var processModule = System.Diagnostics.Process.GetCurrentProcess().MainModule;
return Path.GetDirectoryName(processModule?.FileName);
}
private static string GenerateFullFlatMessage(Exception ex)
{
return GenerateFullFlatMessage(ex, false);
}
private static void AppendDi(IServiceCollection servColl, IConfiguration configuration, Serilog.ILogger lgr)
{
servColl
.AddSingleton(lgr)
.AddLogging();
servColl.AddHostedService<TimedHostedService>(); /* from https://docs.microsoft.com/en-us/aspnet/core/fundamentals/host/hosted-services?view=aspnetcore-3.1&tabs=visual-studio and/or https://github.com/dotnet/AspNetCore.Docs/blob/master/aspnetcore/fundamentals/host/hosted-services/samples/3.x/BackgroundTasksSample/Services/TimedHostedService.cs */
servColl.AddLogging(blder =>
{
blder.AddConsole().SetMinimumLevel(LogLevel.Trace);
blder.SetMinimumLevel(LogLevel.Trace);
blder.AddSerilog(logger: lgr, dispose: true);
});
Console.WriteLine("Using UseInMemoryDatabase");
servColl.AddDbContext<WorkerServiceExampleOneDbContext>(options => options.UseInMemoryDatabase(databaseName: "WorkerServiceExampleOneInMemoryDatabase"));
}
private static string GenerateFullFlatMessage(Exception ex, bool showStackTrace)
{
string returnValue;
StringBuilder sb = new StringBuilder();
Exception nestedEx = ex;
while (nestedEx != null)
{
if (!string.IsNullOrEmpty(nestedEx.Message))
{
sb.Append(nestedEx.Message + System.Environment.NewLine);
}
if (showStackTrace && !string.IsNullOrEmpty(nestedEx.StackTrace))
{
sb.Append(nestedEx.StackTrace + System.Environment.NewLine);
}
if (ex is AggregateException)
{
AggregateException ae = ex as AggregateException;
foreach (Exception aeflatEx in ae.Flatten().InnerExceptions)
{
if (!string.IsNullOrEmpty(aeflatEx.Message))
{
sb.Append(aeflatEx.Message + System.Environment.NewLine);
}
if (showStackTrace && !string.IsNullOrEmpty(aeflatEx.StackTrace))
{
sb.Append(aeflatEx.StackTrace + System.Environment.NewLine);
}
}
}
nestedEx = nestedEx.InnerException;
}
returnValue = sb.ToString();
return returnValue;
}
}
}
和我的 toplayer csproj 内容：
<Project Sdk="Microsoft.NET.Sdk">
<PropertyGroup>
<OutputType>Exe</OutputType>
<TargetFramework>netcoreapp3.1</TargetFramework>
</PropertyGroup>
<ItemGroup>
<!-- allows one line of code to get a txt file logger #simple #notForProduction -->
<PackageReference Include="Serilog" Version="2.9.0" />
<PackageReference Include="Serilog.Sinks.Console" Version="3.1.1" />
<PackageReference Include="Serilog.Sinks.File" Version="4.1.0" />
<PackageReference Include="Serilog.Extensions.Logging" Version="3.0.1" />
</ItemGroup>
<ItemGroup>
<PackageReference Include="Microsoft.Extensions.Logging.Console" Version="3.1.6" />
<PackageReference Include="Microsoft.EntityFrameworkCore.InMemory" Version="3.1.6" />
<PackageReference Include="Microsoft.Extensions.Configuration.EnvironmentVariables" Version="3.1.6" />
<PackageReference Include="Microsoft.Extensions.Configuration.Json" Version="3.1.6" />
<PackageReference Include="Microsoft.Extensions.Hosting.Systemd" Version="3.1.6" />
</ItemGroup>
<ItemGroup>
<None Update="appsettings.Development.json">
<CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
</None>
<None Update="appsettings.json">
<CopyToOutputDirectory>Always</CopyToOutputDirectory>
</None>
</ItemGroup>
</Project>
和我的 docker 踢球文件：
# See https://hub.docker.com/_/microsoft-dotnet-core-sdk/
FROM mcr.microsoft.com/dotnet/core/sdk:3.1 AS buildImage
WORKDIR /mybuilddir
# Copy sln and csprojs and restore as distinct layers
COPY ./src/Solutions/MyCompany.MyExamples.WorkerServiceExampleOne.sln ./src/Solutions/
COPY ./src/ConsoleOne/*.csproj ./src/ConsoleOne/
RUN dotnet restore ./src/Solutions/MyCompany.MyExamples.WorkerServiceExampleOne.sln
COPY ./src ./src
RUN dotnet publish "./src/ConsoleOne/MyCompany.MyExamples.WorkerServiceExampleOne.ConsoleOne.csproj" -c Release -o myOut -r linux-x64 /p:PublishSingleFile=true /p:DebugType=None --framework netcoreapp3.1
# See https://hub.docker.com/_/microsoft-dotnet-core-runtime/
FROM mcr.microsoft.com/dotnet/core/runtime:3.1 AS runtime
WORKDIR /myrundir
COPY --from=buildImage /mybuilddir/myOut ./
# this line is wrong for PublishSingleFile ### ENTRYPOINT ["dotnet", "MyCompany.MyExamples.WorkerServiceExampleOne.ConsoleOne.dll"]
#below is probably right...i was still working on this at time of posting this answer
./myOut/MyCompany.MyExamples.WorkerServiceExampleOne.ConsoleOne