Can Spring.Net log what it's doing as it constructors objects?

问题

Is there anyway to get Spring.Net to log what it's doing as it constructs objects? Something on the order of

Constructing Object A
Constructing Object B
etc etc.....

I need to resolve a circular dependency within my application, and seeing the order in which Spring is creating the objects could be a huge help.

回答1:

This can easily be done. Spring uses Common.Logging. You can grab logging output from Spring.Objects.Factory.* classes and look for ... Creating instance of Object 'your-id-here' ... messages.

Note that you have to log at DEBUG level, which means you'll see quite a lot of other information too.

The following app.config would log creation calls to the console, using log4net:

<?xml version="1.0" encoding="utf-8"?>
<configuration>

 <configSections>
    <sectionGroup name="common">
      <section name="logging" type="Common.Logging.ConfigurationSectionHandler, Common.Logging" />
    </sectionGroup>

    <section name="log4net" type="log4net.Config.Log4NetConfigurationSectionHandler, log4net"/>
  </configSections>

  <common>
    <logging>
      <factoryAdapter type="Common.Logging.Log4Net.Log4NetLoggerFactoryAdapter, Common.Logging.Log4Net">
        <arg key="configType" value="INLINE" />
      </factoryAdapter>
    </logging>
  </common>

  <log4net>
    <appender name="ConsoleAppender" type="log4net.Appender.ConsoleAppender">
      <layout type="log4net.Layout.PatternLayout">
        <conversionPattern value="%date [%thread] %-5level %logger %ndc - %message%newline" />
      </layout>
    </appender>

<!-- this logger will catch creation messages -->

    <logger name="Spring.Objects.Factory">
      <level value="DEBUG" />
      <appender-ref ref="ConsoleAppender" />
    </logger>
  </log4net>

</configuration>

So most of this is boiler-plate Common.Logging and log4net configuration, which is well documented on the Common.Logging website. If you want to append to a file or something else, see the log4net docs.

来源：https://stackoverflow.com/questions/7475888/can-spring-net-log-what-its-doing-as-it-constructors-objects

标签

spring.net