How does Spring Boot control Tomcat cache?

Question

I\'m porting 5 years old Spring MVC application with JSPs to Spring Boot. Therefore, according to sample in http://docs.spring.io/spring-boot/docs/current-SNAPSHOT/reference

Answer 1

You can configure the cache size using a context customizer to configure the context with a customized StandardRoot:

Java 7:

@Bean
public TomcatEmbeddedServletContainerFactory tomcatFactory() {
    TomcatEmbeddedServletContainerFactory tomcatFactory = new TomcatEmbeddedServletContainerFactory();
    tomcatFactory.addContextCustomizers(new TomcatContextCustomizer() {

        @Override
        public void customize(Context context) {
            StandardRoot standardRoot = new StandardRoot(context);
            standardRoot.setCacheMaxSize(40 * 1024);
        }

    });
    return tomcatFactory;
}

Java 8:

@Bean
public TomcatEmbeddedServletContainerFactory tomcatFactory() {
    TomcatEmbeddedServletContainerFactory tomcatFactory = new TomcatEmbeddedServletContainerFactory();
    tomcatFactory.addContextCustomizers((context) -> {
        StandardRoot standardRoot = new StandardRoot(context);
        standardRoot.setCacheMaxSize(40 * 1024);
    });
    return tomcatFactory;
}