[英]DI with ILogger in Azure webJob
I have an azure webjob project created in .net framework 4.6.我有一个在 .net framework 4.6 中创建的 azure webjob 项目。 i am trying to implement dependency injection with ILogger and log the information in application insights.
我正在尝试使用 ILogger 实现依赖注入并在应用程序洞察中记录信息。
class Program
{
private static IConfigurationRoot configuration;
// Please set the following connection strings in app.config for this WebJob to run:
// AzureWebJobsDashboard and AzureWebJobsStorage
public static void Main()
{
var config = new JobHostConfiguration();
if (config.IsDevelopment)
{
config.UseDevelopmentSettings();
}
var builder = new ConfigurationBuilder()
.SetBasePath(Directory.GetCurrentDirectory())
.AddJsonFile("appsettings.json", optional: false, reloadOnChange: true)
.AddEnvironmentVariables();
IServiceCollection serviceCollection = new ServiceCollection();
ConfigureServices(serviceCollection);
//config.JobActivator = new CustomJobActivator(serviceCollection.BuildServiceProvider());
config.LoggerFactory = new LoggerFactory()
.AddApplicationInsights(configuration.GetSection("ApplicationInsights")["InstrumentationKey"], null);
config.UseTimers();
var host = new JobHost(config);
// The following code ensures that the WebJob will be running continuously
host.RunAndBlock();
}
private static void ConfigureServices(IServiceCollection serviceCollection)
{
serviceCollection.AddTransient<Functions, Functions>();
serviceCollection.AddLogging();
}
}
appSettings.json应用设置.json
{
"ApplicationInsights": {
"InstrumentationKey": "8028437c-888-666-444-2cf3777106a8"
}
}
Functions.cs函数.cs
public class Functions
{
private readonly ILogger<Functions> _logger;
public Functions(ILogger<Functions> logger)
{
_logger = logger;
}
public void ProcessTimerMessage([TimerTrigger("0 */5 * * * *")]TimerInfo timerInfo, TextWriter log)
{
//LOG THIS IN APP INSIGHTS
_logger.LogError("Error");
}
}
I have also tried adding the below code in ConfigureServices method.我还尝试在 ConfigureServices 方法中添加以下代码。 But still no luck.
但仍然没有运气。
var telemetryClient = new TelemetryClient(new TelemetryConfiguration()
{
InstrumentationKey = "<< Instrumentation Key >>"
});
serviceCollection.AddSingleton(x => telemetryClient).AddLogging();
Only the trace logs gets logged in app insights whereas the logger object logs doesnot appear.只有跟踪日志会记录在应用洞察中,而记录器对象日志不会出现。 Please help
请帮忙
I created a webjob project from vs web job template, .net framework 4.6.1, steps as below:我从vs web job模板,.net framework 4.6.1创建了一个webjob项目,步骤如下:
step 1: create project第一步:创建项目
step 2: install the following package:第 2 步:安装以下软件包:
Install-Package Microsoft.Azure.WebJobs -version 2.2.0
Install-Package Microsoft.Extensions.Logging -version 2.0.1
Install-Package Microsoft.Extensions.Logging.Console -version 2.0.1
Install-Package Microsoft.Azure.WebJobs.Logging.ApplicationInsights -version 2.2.0
Install-Package System.Configuration.ConfigurationManager -version 4.4.1
step 3: in app.config, add following:第 3 步:在 app.config 中,添加以下内容:
step 4: my program.cs:第 4 步:我的 program.cs:
using Microsoft.Azure.WebJobs;
using Microsoft.Extensions.Logging;
using System.Configuration;
namespace WebJob7
{
class Program
{
static void Main()
{
var config = new JobHostConfiguration();
var instrumentationKey =
ConfigurationManager.AppSettings["APPINSIGHTS_INSTRUMENTATIONKEY"];
config.DashboardConnectionString = "";
config.LoggerFactory = new LoggerFactory()
.AddApplicationInsights(instrumentationKey, null)
.AddConsole();
if (config.IsDevelopment)
{
config.UseDevelopmentSettings();
}
var host = new JobHost(config);
host.RunAndBlock();
}
}
}
step 5: my code in Function.cs:第 5 步:我在 Function.cs 中的代码:
using Microsoft.Azure.WebJobs;
using Microsoft.Extensions.Logging;
namespace WebJob7
{
public class Functions
{
// This function will get triggered/executed when a new message is written
// on an Azure Queue called queue.
public static void ProcessQueueMessage([QueueTrigger("queue")] string message, ILogger logger)
{
//you can directly use this line of code.
//logger.LogError(new Exception(),"it is a test error...");
//or use the following code
try
{
int i = int.Parse("123er");
}
catch(Exception ex)
{
logger.LogError(ex,"it's a exception here 0927..........");
}
}
}
}
After execution, the logs are shown in azure portal -> go as Exception:执行后,日志显示在 azure 门户中 -> go as Exception:
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