spring boot 启动源码解析系列一：spring boot 启动概述

import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;


public class  {

    public static void main(String[] args) {
     SpringApplication.run(DemoApplication.class, args);
  }
}

public static ConfigurableApplicationContext run(Object source, String... args) {
    return run(new Object[]{source}, args);
}

public static ConfigurableApplicationContext run(Object[] sources, String[] args) {
    return (new SpringApplication(sources)).run(args);
}