如何将自定义消息记录到Azure门户网站分析监视日志 [英] how to log custom messages to azure portal analytics monitoring logs

问题描述

我正在尝试在我的C#ASP点网核心Web API中添加自定义日志.我可以在Azure门户中找到api调用日志->应用程序见解->日志.

但是我无法使用以下代码找到要输入的自定义日志.在哪里寻找它们.

 公共异步任务调用(HttpContext httpContext){//首先，获取传入的请求var request = await FormatRequest(httpContext.Request);//TODO:将日志保存到选定的数据存储区_logger.LogInformation('custommessage101');//------} 

在日志分析查询编辑器中，我使用了以下查询，但未获取任何内容.我正在查看的位置是否正确(Azure门户->应用程序见解->日志)?

 请求|搜索"custommessage101" 

解决方案

记录到 ILogger 界面的消息最终成为应用程序见解中的跟踪.查询示例为:

 痕迹|其中message =="custommessage101"； 

另一种选择是

发送给应用程序见解的消息的默认日志级别设置为警告.正如设拉子(Shiraz)指出的那样，您需要将其设置为参考.您可以使用Shiraz所示的代码或通过调整appsettings.json文件来做到这一点:

 <代码> {记录":{"LogLevel":{默认":信息"；}，"ApplicationInsights":{"LogLevel":{默认":信息"；}}}} 

I am trying to add custom logs in my c# asp dot net core web api. I am able to find the api calls logs in Azure portal -> application insights -> logs.

But i am not able to find the custom logs i am entering using below code. whats the place to search for them.

public async Task Invoke(HttpContext httpContext)
{
    // First, get the incoming request
    var request = await FormatRequest(httpContext.Request);

    // TODO: Save log to chosen datastore
    _logger.LogInformation('custommessage101');

    // ------
}

In log analytics query editor i used below query but it didnt fetch anything. Is it even the right place(Azure portal -> application insights -> logs) i am looking at ?

requests | search "custommessage101"

解决方案

Messages logged to the ILogger interface end up as traces in application insights. An example query would be:

traces | where message == "custommessage101"

Another option would be the Search:

The default log level for messages to application insights is set to Warning. As Shiraz point out, you need to set it to informational. You can do that using code as shown by Shiraz or by adjusting the appsettings.json file:

{
  "Logging": {
    "LogLevel": {
      "Default": "Information"
    },
    "ApplicationInsights": {
      "LogLevel": {
        "Default": "Information"
      }
    }
  }
}

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