netcore2 控制台应用程序在应用程序设置中配置日志级别
netcore2 console app configure loglevel at appsettings
我尝试将记录器添加到我的控制台应用程序。所有配置都正确应用,除了 Logging
Program.cs:
private static void Main(string[] args)
{
var services = new ServiceCollection();
ConfigureServices(services);
var serviceProvider = services.BuildServiceProvider();
serviceProvider.GetService<App>().Run();
Console.ReadKey();
}
private static void ConfigureServices(ServiceCollection services)
{
var envName = Environment.GetEnvironmentVariable("MY_ENV") ?? DevelopmentEnvName;
var configuration = new ConfigurationBuilder()
.SetBasePath(Directory.GetCurrentDirectory())
.AddJsonFile("appsettings.json", false)
.AddJsonFile($"appsettings.{envName}.json", true, true)
.AddEnvironmentVariables()
.Build();
services.AddSingleton(configuration);
services.AddLogging(builder =>
{
builder.AddConfiguration(configuration)
.AddConsole()
.AddDebug();
});
ConfigureOptions(services, configuration);
ConfigureDependencies(services);
}
在 App.Run()
我尝试记录调试和信息消息
public void Run()
{
_logger.LogDebug("Debug");
_logger.LogDebug(_appOptions.Env); //print nothing
_logger.LogInformation("Info");
_logger.LogInformation(_appOptions.Env); //print Info and debug env lines
}
appsettings.json:
{
"Logging": {
"IncludeScopes": false,
"LogLevel": {
"Default": "Information"
}
},
"AppOptions": {
"Env": "none"
}
}
appsettings.Dev.json:
{
"Logging": {
"IncludeScopes": false,
"LogLevel": {
"Default": "Debug"
}
},
"AppOptions": {
"Env": "debug env"
}
}
我需要更改什么以通过 json 设置控制日志级别?
简短的回答是:您在 AddConfiguration
中错过了 GetSection
调用。
builder.AddConfiguration(configuration.GetSection("Logging"))...
这是我重构你的程序:
ConsoleApp1.csproj
<Project Sdk="Microsoft.NET.Sdk">
<PropertyGroup>
<OutputType>Exe</OutputType>
<TargetFramework>netcoreapp2.2</TargetFramework>
</PropertyGroup>
<ItemGroup>
<PackageReference Include="Microsoft.Extensions.Configuration" Version="2.2.0" />
<PackageReference Include="Microsoft.Extensions.Configuration.EnvironmentVariables" Version="2.2.4" />
<PackageReference Include="Microsoft.Extensions.Configuration.Json" Version="2.2.0" />
<PackageReference Include="Microsoft.Extensions.DependencyInjection" Version="2.2.0" />
<PackageReference Include="Microsoft.Extensions.Logging" Version="2.2.0" />
<PackageReference Include="Microsoft.Extensions.Logging.Configuration" Version="2.2.0" />
<PackageReference Include="Microsoft.Extensions.Logging.Console" Version="2.2.0" />
<PackageReference Include="Microsoft.Extensions.Logging.Debug" Version="2.2.0" />
</ItemGroup>
<ItemGroup>
<None Update="appsettings.Dev.json">
<CopyToOutputDirectory>Always</CopyToOutputDirectory>
</None>
<None Update="appsettings.json">
<CopyToOutputDirectory>Always</CopyToOutputDirectory>
</None>
</ItemGroup>
</Project>
Program.cs
using Microsoft.Extensions.Configuration;
using Microsoft.Extensions.DependencyInjection;
using Microsoft.Extensions.Logging;
using Microsoft.Extensions.Logging.Configuration;
using System;
using System.IO;
namespace ConsoleApp1
{
class Program
{
static void Main(string[] args)
{
var services = new ServiceCollection();
var envName = Environment.GetEnvironmentVariable("MY_ENV") ?? "Dev";
var configuration = new ConfigurationBuilder()
.SetBasePath(Directory.GetCurrentDirectory())
.AddJsonFile($"appsettings.{envName}.json", false, true)
.AddEnvironmentVariables()
.Build();
services.AddSingleton<IConfiguration>(configuration);
services.AddLogging(builder =>
{
builder.ClearProviders();
builder.AddConfiguration(configuration.GetSection("Logging"))
.AddConsole()
.AddDebug();
});
var provider = services.BuildServiceProvider();
var config = provider.GetService<IConfiguration>();
var appOptions = new AppOptions();
config.GetSection("AppOptions").Bind(appOptions);
var logger = provider.GetService<ILogger<Program>>();
logger.LogDebug("Debug");
logger.LogDebug(appOptions.Env); //print nothing
logger.LogInformation("Info");
logger.LogInformation(appOptions.Env); //print Info and debug env lines
Console.ReadLine();
}
}
public class AppOptions
{
public string Env { get; set; }
}
}
appSettings.json
{
"Logging": {
"LogLevel": {
"Default": "Information"
}
},
"AppOptions": {
"Env": "none"
}
}
appSettings.Dev.json
{
"Logging": {
"LogLevel": {
"Default": "Debug"
}
},
"AppOptions": {
"Env": "debug env"
}
}
我尝试将记录器添加到我的控制台应用程序。所有配置都正确应用,除了 Logging
Program.cs:
private static void Main(string[] args)
{
var services = new ServiceCollection();
ConfigureServices(services);
var serviceProvider = services.BuildServiceProvider();
serviceProvider.GetService<App>().Run();
Console.ReadKey();
}
private static void ConfigureServices(ServiceCollection services)
{
var envName = Environment.GetEnvironmentVariable("MY_ENV") ?? DevelopmentEnvName;
var configuration = new ConfigurationBuilder()
.SetBasePath(Directory.GetCurrentDirectory())
.AddJsonFile("appsettings.json", false)
.AddJsonFile($"appsettings.{envName}.json", true, true)
.AddEnvironmentVariables()
.Build();
services.AddSingleton(configuration);
services.AddLogging(builder =>
{
builder.AddConfiguration(configuration)
.AddConsole()
.AddDebug();
});
ConfigureOptions(services, configuration);
ConfigureDependencies(services);
}
在 App.Run()
我尝试记录调试和信息消息
public void Run()
{
_logger.LogDebug("Debug");
_logger.LogDebug(_appOptions.Env); //print nothing
_logger.LogInformation("Info");
_logger.LogInformation(_appOptions.Env); //print Info and debug env lines
}
appsettings.json:
{
"Logging": {
"IncludeScopes": false,
"LogLevel": {
"Default": "Information"
}
},
"AppOptions": {
"Env": "none"
}
}
appsettings.Dev.json:
{
"Logging": {
"IncludeScopes": false,
"LogLevel": {
"Default": "Debug"
}
},
"AppOptions": {
"Env": "debug env"
}
}
我需要更改什么以通过 json 设置控制日志级别?
简短的回答是:您在 AddConfiguration
中错过了 GetSection
调用。
builder.AddConfiguration(configuration.GetSection("Logging"))...
这是我重构你的程序:
ConsoleApp1.csproj
<Project Sdk="Microsoft.NET.Sdk">
<PropertyGroup>
<OutputType>Exe</OutputType>
<TargetFramework>netcoreapp2.2</TargetFramework>
</PropertyGroup>
<ItemGroup>
<PackageReference Include="Microsoft.Extensions.Configuration" Version="2.2.0" />
<PackageReference Include="Microsoft.Extensions.Configuration.EnvironmentVariables" Version="2.2.4" />
<PackageReference Include="Microsoft.Extensions.Configuration.Json" Version="2.2.0" />
<PackageReference Include="Microsoft.Extensions.DependencyInjection" Version="2.2.0" />
<PackageReference Include="Microsoft.Extensions.Logging" Version="2.2.0" />
<PackageReference Include="Microsoft.Extensions.Logging.Configuration" Version="2.2.0" />
<PackageReference Include="Microsoft.Extensions.Logging.Console" Version="2.2.0" />
<PackageReference Include="Microsoft.Extensions.Logging.Debug" Version="2.2.0" />
</ItemGroup>
<ItemGroup>
<None Update="appsettings.Dev.json">
<CopyToOutputDirectory>Always</CopyToOutputDirectory>
</None>
<None Update="appsettings.json">
<CopyToOutputDirectory>Always</CopyToOutputDirectory>
</None>
</ItemGroup>
</Project>
Program.cs
using Microsoft.Extensions.Configuration;
using Microsoft.Extensions.DependencyInjection;
using Microsoft.Extensions.Logging;
using Microsoft.Extensions.Logging.Configuration;
using System;
using System.IO;
namespace ConsoleApp1
{
class Program
{
static void Main(string[] args)
{
var services = new ServiceCollection();
var envName = Environment.GetEnvironmentVariable("MY_ENV") ?? "Dev";
var configuration = new ConfigurationBuilder()
.SetBasePath(Directory.GetCurrentDirectory())
.AddJsonFile($"appsettings.{envName}.json", false, true)
.AddEnvironmentVariables()
.Build();
services.AddSingleton<IConfiguration>(configuration);
services.AddLogging(builder =>
{
builder.ClearProviders();
builder.AddConfiguration(configuration.GetSection("Logging"))
.AddConsole()
.AddDebug();
});
var provider = services.BuildServiceProvider();
var config = provider.GetService<IConfiguration>();
var appOptions = new AppOptions();
config.GetSection("AppOptions").Bind(appOptions);
var logger = provider.GetService<ILogger<Program>>();
logger.LogDebug("Debug");
logger.LogDebug(appOptions.Env); //print nothing
logger.LogInformation("Info");
logger.LogInformation(appOptions.Env); //print Info and debug env lines
Console.ReadLine();
}
}
public class AppOptions
{
public string Env { get; set; }
}
}
appSettings.json
{
"Logging": {
"LogLevel": {
"Default": "Information"
}
},
"AppOptions": {
"Env": "none"
}
}
appSettings.Dev.json
{
"Logging": {
"LogLevel": {
"Default": "Debug"
}
},
"AppOptions": {
"Env": "debug env"
}
}