springboot之零碎小知识

1.springboot启动类加载yml配置项

主要是如下方法，读取了yml的配置项，赋值为类成员属性

@Autowired
    public void setEnvironment(Environment environment) {
        host = environment.getProperty("server.port");
    }

package com.shy;

import com.shy.iot.facerecognition2.tcp.Server;
import com.shy.iot.netty.server.NettyServer;
import org.apache.catalina.Context;
import org.apache.catalina.connector.Connector;
import org.apache.tomcat.util.descriptor.web.SecurityCollection;
import org.apache.tomcat.util.descriptor.web.SecurityConstraint;
import org.mybatis.spring.annotation.MapperScan;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.boot.context.embedded.tomcat.TomcatEmbeddedServletContainerFactory;
import org.springframework.cache.annotation.EnableCaching;
import org.springframework.context.ConfigurableApplicationContext;
import org.springframework.context.annotation.Bean;
import org.springframework.core.env.Environment;
import org.springframework.web.servlet.config.annotation.EnableWebMvc;
import org.springframework.web.servlet.config.annotation.WebMvcConfigurerAdapter;

@SpringBootApplication
@EnableCaching
@EnableWebMvc
@MapperScan("com.shy.iot.*.dao")
public class CentralPlatformApp extends WebMvcConfigurerAdapter {

    String host;

    public static void main(String[] args) throws InterruptedException {
        ConfigurableApplicationContext ctx = SpringApplication.run(CentralPlatformApp.class, args);
        String flag = ctx.getEnvironment().getProperty("netty.isStart");
        if ("start".equals(flag)) {//判断当前项目启动是否要启动智能家居模块
            NettyServer nettyServer = (NettyServer) ctx.getBean("nettyServer");
            nettyServer.start();
        }
        Server bean = ctx.getBean(Server.class);
        bean.run();
    }

    @Autowired
    public void setEnvironment(Environment environment) {
        host = environment.getProperty("server.port");
    }

    /**
     * it's for set http url auto change to https
     */
    @Bean
    public TomcatEmbeddedServletContainerFactory servletContainer() {
        TomcatEmbeddedServletContainerFactory tomcat = new TomcatEmbeddedServletContainerFactory() {
            @Override
            protected void postProcessContext(Context context) {
                SecurityConstraint securityConstraint = new SecurityConstraint();
                securityConstraint.setUserConstraint("CONFIDENTIAL");//confidential
                SecurityCollection collection = new SecurityCollection();
                collection.addPattern("/*");
                securityConstraint.addCollection(collection);
                context.addConstraint(securityConstraint);
            }
        };
        tomcat.addAdditionalTomcatConnectors(httpConnector());
        return tomcat;
    }

    @Bean
    public Connector httpConnector() {
        Connector connector = new Connector("org.apache.coyote.http11.Http11NioProtocol");
        connector.setScheme("http");
        connector.setPort(9000);
        connector.setSecure(true);
        connector.setRedirectPort(Integer.parseInt(host));
        return connector;
    }
}