Springbootの起動プロセス

1.springbootプロジェクトの起動クラスは以下の通りです.
方式1

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

   run         ，

/**
 * Static helper that can be used to run a {@link SpringApplication} from the
 * specified source using default settings.
 * @param primarySource the primary source to load
 * @param args the application arguments (usually passed from a Java main method)
 * @return the running {@link ApplicationContext}
 */
public static ConfigurableApplicationContext run(Class> primarySource, String... args) {
   return run(new Class>[] { primarySource }, args);
}

      run       ，

/**
 * Static helper that can be used to run a {@link SpringApplication} from the
 * specified sources using default settings and user supplied arguments.
 * @param primarySources the primary sources to load
 * @param args the application arguments (usually passed from a Java main method)
 * @return the running {@link ApplicationContext}
 */
public static ConfigurableApplicationContext run(Class>[] primarySources, String[] args) {
   return new SpringApplication(primarySources).run(args);
}
     run()         ConfigurableApplicationContext。

          SpringBoot          new SpringApplication(primarySources).run(args);
                      。
  2

@SpringBootApplication
public class SpringbootZkLockApplication {

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

new SpringApplication(SpringbootZkLockApplication.class).run(args);      2     
  3

@SpringBootApplication
public class SpringbootZkLockApplication {

    public static void main(String[] args) {
        //SpringApplication.run(SpringbootZkLockApplication.class, args);
 SpringApplication application = new SpringApplication(SpringbootZkLockApplication.class);
        application.run(args);
    }
}

              ，      SpringBoot   。               ，  SpringBoot         。　

@EnableAutoConfiguration                    Tomcat   。

DispatcherServletAutoConfiguration ---》ServletWebServerFactoryAutoConfiguration     tomcat。

転載先:https://www.cnblogs.com/ming-blogs/p/11596870.html