How to configure the embedded Tomcat container in Spring Boot

gistfile1.txt

//in Application.java


  @Bean
	public EmbeddedServletContainerFactory servletContainer() {
		TomcatEmbeddedServletContainerFactory tomcat = new TomcatEmbeddedServletContainerFactory();
		tomcat.setProtocol("org.apache.coyote.http11.Http11Nio2Protocol");
		tomcat.addContextCustomizers((context) -> {
	        StandardRoot standardRoot = new StandardRoot(context);
	        standardRoot.setCacheMaxSize(64 * 1024);
	    });

		return tomcat;
	}