按照答案:
.NET Core 3 Worker Service Settings Dependency Injection
我可以在 Debug 或 Release 中的 Worker.cs 类中获取设置
但是当部署为 Windows 服务时,此值返回为 null
worker .cs
public class Worker : BackgroundService
{
private readonly ILogger<Worker> _logger;
private readonly ServiceSettings _serviceSettings;
private readonly ServiceConfigurations _serviceConfigurations;
public Worker(ILogger<Worker> logger, IOptions<ServiceConfigurations> serviceConfigurations, IOptions<ServiceSettings> serviceSettings)
{
_logger = logger;
_serviceConfigurations = serviceConfigurations.Value;
_logger.LogInformation($"Worker running at: {DateTime.Now}");
_serviceSettings = serviceSettings.Value;
string retornoPathLog = null;
string PathLog = _serviceSettings.PathLog;
if (!Directory.Exists(PathLog))
{
retornoPathLog = "Diretório de LOG " + PathLog;
Directory.CreateDirectory(PathLog);
}
//Configure Serilo for Logging
Log.Logger = new LoggerConfiguration()
.MinimumLevel.Information()
.Enrich.FromLogContext()
.WriteTo.File(PathLog + "log.txt", rollingInterval: RollingInterval.Day)
.CreateLogger();
if (string.IsNullOrEmpty(retornoPathLog) == false)
{
Log.Information("[WFoneService - Watch Event] " + retornoPathLog);
}
}
}
appsettings.json:
{
"ConnectionStrings": {
"WFoneConnection": ""
},
"ServiceConfigurations": {
"UrlSignalrNotification": "urlValue",
"WatchIp": "ipValue",
"WatchPort": "portValue"
},
"ServiceSettings": {
"PathLog": "C:\\Log\\"
},
"Logging": {
"LogLevel": {
"Default": "Information",
"Microsoft": "Warning",
"Microsoft.Hosting.Lifetime": "Information"
}
}
}
最佳答案
有几种方法可以处理这个问题。
dotnet new worker
<Project Sdk="Microsoft.NET.Sdk.Worker">
<ItemGroup>
<None Update="appsettings.json">
<CopyToOutputDirectory>Always</CopyToOutputDirectory>
</None>
</ItemGroup>
如果你有一个现有的项目,我建议 #2 将你的 csproj 转换为我们的 Worker Sdk,或者如果它简单地创建一个新项目使用 #1。 #3 只是将 appsettings.json 文件复制到您的输出中是一个可怕的技巧,我不推荐这样做。
关于c# - 发布为 Windows 服务后,在 .net core 3.0 工作服务上获取 appsettings.json 值,我们在Stack Overflow上找到一个类似的问题:https://stackoverflow.com/questions/58308476/