Spring boot 2: http request redirection to https method change

Spring boot version 2.0 has been launched for more than a month. This version has been upgraded greatly. Many configuration properties or classes in version 1.5 have been renamed or deleted, resulting in the previously used writing method no longer applicable, including http requests. Redirect to https request method change.

If you search for springboot to support http/https on a search engine, the approximate method you can find is this

    // 在某配置类中添加如下内容
    // 监听的http请求的端口,需要在application配置中添加http.port=端口号  如80
    @Value("${http.port}")
    Integer httpPort;

    //正常启用的https端口 如443
    @Value("${server.port}")
    Integer httpsPort;
    @Bean
	public EmbeddedServletContainerFactory servletContainer() {
		TomcatEmbeddedServletContainerFactory tomcat = new TomcatEmbeddedServletContainerFactory() {
			@Override
			protected void postProcessContext(Context  context) {
				SecurityConstraint constraint = new SecurityConstraint();
				constraint.setUserConstraint("CONFIDENTIAL");
				SecurityCollection collection = new SecurityCollection();
				collection.addPattern("/*");
				constraint.addCollection(collection);
				context.addConstraint(constraint);
			}
		};
		tomcat.addAdditionalTomcatConnectors(httpConnector());
		return tomcat;
	}

	@Bean
	public Connector httpConnector() {
		Connector connector = new Connector("org.apache.coyote.http11.Http11NioProtocol");
		connector.setScheme("http");
		//Connector监听的http的端口号
		connector.setPort(httpPort);
		connector.setSecure(false);
		//监听到http的端口号后转向到的https的端口号
		connector.setRedirectPort(httpsPort);
		return connector;
	}

However, in Spring boot 2.0, EmbeddedServletContainerFactory has been renamed to TomcatServletWebServerFactory, which makes the above code unavailable, so in version 2.0, we only need to rename EmbeddedServletContainerFactory to TomcatServletWebServerFactory. The modified code is roughly as follows

    // 在某配置类中添加如下内容
    // 监听的http请求的端口,需要在application配置中添加http.port=端口号  如80
    @Value("${http.port}")
    Integer httpPort;

    //正常启用的https端口 如443
    @Value("${server.port}")
    Integer httpsPort;

    // springboot2 写法
    @Bean
    public TomcatServletWebServerFactory servletContainer() {
        TomcatServletWebServerFactory tomcat = new TomcatServletWebServerFactory() {
            @Override
            protected void postProcessContext(Context context) {
                SecurityConstraint constraint = new SecurityConstraint();
                constraint.setUserConstraint("CONFIDENTIAL");
                SecurityCollection collection = new SecurityCollection();
                collection.addPattern("/*");
                constraint.addCollection(collection);
                context.addConstraint(constraint);
            }
        };
        tomcat.addAdditionalTomcatConnectors(httpConnector());
        return tomcat;
    }

    @Bean
    public Connector httpConnector() {
        Connector connector = new Connector("org.apache.coyote.http11.Http11NioProtocol");
        connector.setScheme("http");
        //Connector监听的http的端口号
        connector.setPort(httpPort);
        connector.setSecure(false);
        //监听到http的端口号后转向到的https的端口号
        connector.setRedirectPort(httpsPort);
        return connector;
    }