我有一个 azure 功能,它可以毫无问题地记录信息。
namespace aspnetcore_azurefun_blob
{
[StorageAccount("AzureWebJobsStorage")]
public class FileTrigger
{
#region Property
private readonly IFileProcessor fileProcessor;
#endregion
#region Constructor
public FileTrigger(IFileProcessor fileProcessor)
{
this.fileProcessor = fileProcessor;
}
#endregion
[FunctionName("FileTrigger")]
public void ProcessFilesFromSamplesContainer([BlobTrigger("samples-workitems/{name}")]Stream myBlob, string name, ILogger log, ExecutionContext context)
{
log.LogInformation("Function: ProcessFilesFromSamplesContainer is called");
log.LogInformation($"C# Blob trigger function Processed blob\n Name:{name} \n Size: {myBlob.Length} Bytes");
var result = fileProcessor.ProcessAsync(myBlob, name);
log.LogInformation($"Function Completed Successfully on {DateTime.Now.ToLongDateString()} @ {DateTime.Now.ToShortTimeString()}.\n.");
}
但是,我也使用 DI 实现了业务逻辑,下面是实现的摘录。
ServiceBase.cs
namespace BusinessService.Services.Common
{
public abstract class ServiceBase<T>
{
public static AppDbContext AppDbContext;
public static ILogger<T> Logger { get; set; }
public static AppConfigurator Configurator { get; set; }
public ServiceBase(AppDbContext appDbContext, ILogger<T> logger, IOptions<AppConfigurator> configurator)
{
AppDbContext = appDbContext ?? throw new ArgumentNullException(nameof(appDbContext));
Logger = logger ?? throw new ArgumentNullException(nameof(logger));
Configurator = configurator.Value ?? throw new ArgumentNullException(nameof(configurator));
}
}
}
FileProcessingService.cs
namespace BusinessService.Services
{
public interface IFileProcessingService
{
void Process(Stream myBlob, string name);
}
public class FileProcessingService : ServiceBase<FileProcessingService>, IFileProcessingService
{
#region Constructor
public FileProcessingService(AppDbContext appDbContext, ILogger<FileProcessingService> logger, IOptions<AppConfigurator> configurator)
: base(appDbContext, logger, configurator) { }
#endregion
#region Public Methods
public void Process(Stream myBlob, string name)
{
AppDbContext.FileRecords.Add(new FileRecords
{
FileName = name,
IsCompleted = DefaultValues.IsCompleted
});
AppDbContext.SaveChanges();
Logger.LogInformation("Reading configuration from the configuration settings file: {Configurator.AzureSQLServerConfigurator.ConnnectionString}");
Logger.LogInformation("Database is updated..!");
}
#endregion
}
}
第 34 行和第 35 行没有记录任何内容
Logger.LogInformation("Reading configuration from the configuration settings file: {Configurator.AzureSQLServerConfigurator.ConnnectionString}");
Logger.LogInformation("Database is updated..!");
DependencyRegistrar.cs
namespace CrossCutting.DependencyInjection
{
public static class DependencyRegistrar
{
public static void Intialize(this IServiceCollection services)
{
// Initialize App Settings from Configurator Settings Json file
services.AddOptions<AppConfigurator>()
.Configure<IConfiguration>((settings, configuration) =>
{
configuration.GetSection("AppConfigurator").Bind(settings);
})
.Validate((c) =>
{
return !new[] { c.AzureSQLServerConfigurator.ConnnectionString }.Any(s => String.IsNullOrWhiteSpace(s));
});
}
}
}
我缺少什么才能让 FileProcessingService.cs 记录信息?
最佳答案
我检查了你的代码,最后我可以获得日志信息。在您的代码中,我注意到您正在使用 Logger 而不是 logger。
因为在您的区域构造函数中您正在使用 ILogger<FileProcessingService> logger
从这里,您必须调用记录器,将日志信息推送到 Application Insights/函数执行面板(输出控制台窗口)
#region Constructor
public FileProcessingService(AppDbContext appDbContext, ILogger<FileProcessingService> logger, IOptions<AppConfigurator> configurator)
: base(appDbContext, logger, configurator) { }
#endregion
#region Public Methods
public void Process(Stream myBlob, string name)
{
AppDbContext.FileRecords.Add(new FileRecords
{
FileName = name,
IsCompleted = DefaultValues.IsCompleted
});
AppDbContext.SaveChanges();
# changed Logger into logger
logger.LogInformation("Reading configuration from the configuration settings file: {Configurator.AzureSQLServerConfigurator.ConnnectionString}");
logger.LogInformation("Database is updated..!");
}
#endregion
如果无法推送日志,您可以在 host.json 文件中添加您的命名空间,以避免丢失日志记录
{
"version": "2.0",
"logging": {
"logLevel": {
// Here you can use your Project namespace like BusinessService.Services
"<namespace>": "Information"
}
}
}
关于Azure Function - ILogger 不记录日志?,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/72418351/