SpringBootConfiguration
    springboot注解 注解
    注解
    http://mp.weixin.qq.com/s?__biz=Mzg2MjEwMjI1Mg==&mid=2247517350&idx=1&sn=96ab31817c899bd12254dda46b5c7e2f

    public void refresh() throws BeansException, IllegalStateException {
    Object var1 = this.startupShutdownMonitor;
    synchronized(this.startupShutdownMonitor) {
    this.prepareRefresh();
    ConfigurableListableBeanFactory beanFactory = this.obtainFreshBeanFactory();
    this.prepareBeanFactory(beanFactory);

    1.     **try **{<br />            **this**.postProcessBeanFactory(beanFactory);<br />            **this**.invokeBeanFactoryPostProcessors(beanFactory);<br />            **this**.registerBeanPostProcessors(beanFactory);<br />            **this**.initMessageSource();<br />            **this**.initApplicationEventMulticaster();<br />            **this**.onRefresh();<br />            **this**.registerListeners();<br />            **this**.finishBeanFactoryInitialization(beanFactory);<br />            **this**.finishRefresh();<br />        } **catch **(BeansException var9) {<br />            **if **(**this**.logger.isWarnEnabled()) {<br />                **this**.logger.warn(**"Exception encountered during context initialization - cancelling refresh attempt: " **+ var9);<br />            }
    3.         **this**.destroyBeans();<br />            **this**.cancelRefresh(var9);<br />            **throw **var9;<br />        } **finally **{<br />            **this**.resetCommonCaches();<br />        }
    5. }<br />}
    1. public void refresh() throws BeansException, IllegalStateException {
    2.         Object var1 = this.startupShutdownMonitor;
    3.         synchronized(this.startupShutdownMonitor) {
    4.             this.prepareRefresh();
    5.             ConfigurableListableBeanFactory beanFactory = this.obtainFreshBeanFactory();
    6.             this.prepareBeanFactory(beanFactory);
    8.             try {
    9.                 this.postProcessBeanFactory(beanFactory);
    10.                 this.invokeBeanFactoryPostProcessors(beanFactory);
    11.                 this.registerBeanPostProcessors(beanFactory);
    12.                 this.initMessageSource();
    13.                 this.initApplicationEventMulticaster();
    14.                 this.onRefresh();
    15.                 this.registerListeners();
    16.                 this.finishBeanFactoryInitialization(beanFactory);
    17.                 this.finishRefresh();
    18.             } catch (BeansException var9) {
    19.                 if (this.logger.isWarnEnabled()) {
    20.                     this.logger.warn("Exception encountered during context initialization - cancelling refresh attempt: " + var9);
    21.                 }
    23.                 this.destroyBeans();
    24.                 this.cancelRefresh(var9);
    25.                 throw var9;
    26.             } finally {
    27.                 this.resetCommonCaches();
    28.             }
    30.         }
    31.     }

    refresh()—>onRefresh()—>createWebServer()—>

    1. private void createWebServer() {
    2.    WebServer webServer = this.webServer;
    3.    ServletContext servletContext = getServletContext();
    4.    if (webServer == null && servletContext == null) {
    5.       ServletWebServerFactory factory = getWebServerFactory();
    6.       this.webServer = factory.getWebServer(getSelfInitializer());
    7.    }
    8.    else if (servletContext != null) {
    9.       try {
    10.          getSelfInitializer().onStartup(servletContext);
    11.       }
    12.       catch (ServletException ex) {
    13.          throw new ApplicationContextException("Cannot initialize servlet context",
    14.                ex);
    15.       }
    16.    }
    17.    initPropertySources();
    18. }