使用Azure Function进行后台任务处理
使用定时触发器,你可以设置函数在特定时间自动执行。以下是一个简单的示例,展示了如何实现每天自动清理过期数据的功能。
using System;
using Microsoft.Azure.WebJobs;
using Microsoft.Azure.WebJobs.Host;
using Microsoft.Extensions.Logging;
using Microsoft.ApplicationInsights;
using Microsoft.ApplicationInsights.Extensibility;
using System;
namespace Azure_FunctionApp_Example
{
public class Function2
{
private static TelemetryClient telemetryClient = new TelemetryClient(new TelemetryConfiguration { InstrumentationKey = "65104760-9112-4574-b454-e4cf38daddc3" });
[FunctionName("Function2")]
public void Run([TimerTrigger("0 */5 * * * *")]TimerInfo myTimer, ILogger log)
{
log.LogInformation($"C# Timer trigger function executed at: {DateTime.Now}");
int deletedItems = CleanUpOldData();
log.LogInformation($"{deletedItems} items deleted.");
}
private static int CleanUpOldData()
{
Random random = new Random();
int randomNumber = random.Next(1, 10);
if (randomNumber <= 8)
{
TrackException(new Exception("Timer CleanDb Error"));
}
return randomNumber;
}
public static void TrackEvent(string eventName, string message)
{
telemetryClient.TrackEvent(eventName, new System.Collections.Generic.Dictionary<string, string> { { "Message", message } });
}
public static void TrackException(Exception exception)
{
telemetryClient.TrackException(exception);
}
}
}