How do you tell Spring Boot to send the embedded Tomcat's access logs to stdout?

Question

In a standalone Spring Boot web application (executable jar), how do you tell Spring Boot that we want the embedded Tomcat instance\'s HTTP access logs to be sent to stdout?

Answer 1

Here's the followup up on the great answer from JohanB, for Spring Boot 2.0.0+.

In Spring Boot 2.0.0, the EmbeddedServletContainerFactory was replaced with TomcatServletWebServerFactory. All other aspects of JohanB's answer still works correctly the factory bean creation just needs to be modified:

@Bean
public TomcatServletWebServerFactory servletContainer() {
    TomcatServletWebServerFactory tomcat = new TomcatServletWebServerFactory();
    // put logback-access.xml in src/main/resources/conf
    tomcat.addContextValves(new LogbackValve());
    return tomcat;
}