Serilog Additional Properties

问题

I work working with Serilog and logging events to SQL Server (using the Serilog, Serilog.Framework.Logging and Serilog.Sinks.MSSqlServer libraries).

As part of an MVC6 application, when I log events and set the option to include properties, I see some additional properties in the XML column.

If I issue something like the following statement:

Log.Information("{Property1}", "Value1");

I see something like the following in the Properties column:

<properties>
  <property key="Property1">Value1</property>
  <property key="SourceContext">WebApplication4.Controllers.BaseController</property>
  <property key="ActionId">1b9f9c7e-7c5c-4b14-a30d-99f2ebc88c51</property>
  <property key="RequestId">80000191-0001-f000-b63f-84710c7967bb</property>
</properties>

Where do these extra properties come from? Can I set additional properties similar to these? If so, where do I set them? I can set additional properties if I include them in the message (similar to Property1 above) but I might want to include additional properties that are not in the message.

回答1:

There are three ways to go about this.

The first is to use ForContext() to create a logger instance with specific properties attached:

var specific = Log.ForContext("SomeProperty", 42);
specific.Information("This has properties attached");

The second is using enrichers:

Log.Logger = new LoggerConfiguration()
    .Enrich.WithMachineName()
    // Other config...

The third is the LogContext.

using (LogContext.PushProperty("SomeProperty", 42))
{
    Log.Information("This has properties attached");
}

Some minor setup is required for this, check out the info on the Serilog wiki.

来源：https://stackoverflow.com/questions/32974560/serilog-additional-properties

标签

asp.net-core-mvc

serilog