title: How to use custom logger to log access log in spring boot
body: <p>Currently in spring boot 1.3, we could only log access log to a file in the filesystem. Is there any way to actually use the custom logger (like log4j2) to log the access log?</p>
  
  <p>I am currently using undertow with spring boot, but after checking the spring boot source code, the undertow logger is initialized with DefaultAccessLogReceiver which is writing to file. I would like to use the AccessLogHandler if possible, and avoid writing a web filter which logs the access.</p>
  
  <p>Is there any easy way around this? (except writing a pull request)</p>