springboot 内置tomcat设置

@Configuration
public class TomcatConfig {

    @Bean
    public RestTemplate restTemplate(RestTemplateBuilder builder) {
        return builder.build();
    }

    @Bean
    public ConfigurableServletWebServerFactory configurableServletWebServerFactory() {
        TomcatServletWebServerFactory factory = new TomcatServletWebServerFactory();
        factory.addContextCustomizers(context -> {
            SecurityConstraint securityConstraint = new SecurityConstraint();
            securityConstraint.setUserConstraint("CONFIDENTIAL");
            SecurityCollection collection = new SecurityCollection();
            collection.addPattern("/*");
            collection.addMethod("PUT");
            collection.addMethod("DELETE");
            collection.addMethod("OPTIONS");
            collection.addMethod("TRACE");
            collection.addMethod("COPY");
            collection.addMethod("SEARCH");
            collection.addMethod("PROPFIND");
            securityConstraint.addCollection(collection);
            context.addConstraint(securityConstraint);
        });
        factory.addConnectorCustomizers(new MyTomcatConnectorCustomizer());
        return factory;
    }

    class MyTomcatConnectorCustomizer implements TomcatConnectorCustomizer {
        @Override
        public void customize(Connector connector) {
            // 禁用TRACE请求
            connector.setAllowTrace(true);
            Http11NioProtocol handler = (Http11NioProtocol) connector.getProtocolHandler();
            //handler.setAcceptCount(1000);// 排队数
            //handler.setMaxConnections(1000);// 最大连接数
            //handler.setMaxThreads(500);// 线程池的最大线程数
            //handler.setMinSpareThreads(50);// 最小线程数
            handler.setConnectionTimeout(8000);// 超时时间 20S

        }
    }

}