下面的代码得到了错误。为.Net Core 2.0控制台应用程序设置日志记录和配置管理的正确方法是什么?.Net核心2.0控制台应用程序的记录和配置?
错误CS1061“的LoggerFactory”不包含关于“AddConsole”的定义和没有扩展方法“AddConsole”接受类型为“的LoggerFactory”的第一参数可以找到(是否缺少using指令或程序集引用?)
错误CS1503参数2:无法从 'Microsoft.Extensions.Configuration.IConfigurationSection' 到 'System.Action'
class Program
{
static void Main(string[] args)
{
var services = new ServiceCollection();
ConfigureServices(services);
var serviceProvider = services.BuildServiceProvider();
var app = serviceProvider.GetService<Application>();
Task.Run(() => app.Run()).Wait();
}
private static void ConfigureServices(IServiceCollection services)
{
ILoggerFactory loggerFactory = new LoggerFactory()
.AddConsole() // Error!
.AddDebug();
services.AddSingleton(loggerFactory); // Add first my already configured instance
services.AddLogging(); // Allow ILogger<T>
IConfigurationRoot configuration = GetConfiguration();
services.AddSingleton<IConfigurationRoot>(configuration);
// Support typed Options
services.AddOptions();
services.Configure<MyOptions>(configuration.GetSection("MyOptions")); // Error!
services.AddTransient<Application>();
}
private static IConfigurationRoot GetConfiguration()
{
return new ConfigurationBuilder().SetBasePath(Directory.GetCurrentDirectory()).AddXmlFile("App.config", optional: true).Build();
}
public class MyOptions
{
public string Name { get; set; }
}
public class Application
{
ILogger _logger;
MyOptions _settings;
public Application(ILogger<Application> logger, IOptions<MyOptions> settings)
{
_logger = logger;
_settings = settings.Value;
}
public async Task Run()
{
try
{
_logger.LogInformation($"This is a console application for {_settings.Name}");
}
catch (Exception ex)
{
_logger.LogError(ex.ToString());
}
}
}
}
我加入相当几个参考文献和错误消失了。现在我运行'var app = serviceProvider.GetService()'时得到了空值。我已经更新了这个问题。 –
ca9163d9
我发布了一个新问题https://stackoverflow.com/questions/45928025/net-core-2-0-console-program-got-null-value-when-running-serviceprovider-getse。 – ca9163d9