SpringApplication：SpringBoot程序启动的一站式解决方案
深入探索SpringApplication执行流程
因为书上的版本是1.2的，比较老，这里参考http://blog.csdn.net/zxzzxzzxz123/article/details/69941910
public ConfigurableApplicationContext run(String... args) {StopWatch stopWatch = new StopWatch();stopWatch.start();ConfigurableApplicationContext context = null;FailureAnalyzers analyzers = null;configureHeadlessProperty();SpringApplicationRunListeners listeners = getRunListeners(args);listeners.starting();try {ApplicationArguments applicationArguments = new DefaultApplicationArguments(args);ConfigurableEnvironment environment = prepareEnvironment(listeners,applicationArguments);Banner printedBanner = printBanner(environment);context = createApplicationContext();analyzers = new FailureAnalyzers(context);prepareContext(context, environment, listeners, applicationArguments,printedBanner);refreshContext(context);afterRefresh(context, applicationArguments);listeners.finished(context, null);stopWatch.stop();if (this.logStartupInfo) {new StartupInfoLogger(this.mainApplicationClass).logStarted(getApplicationLog(), stopWatch);}return context;}catch (Throwable ex) {handleRunFailure(context, listeners, analyzers, ex);throw new IllegalStateException(ex);}}
SpringApplicationRunListener
SpringApplicationRunListener是一个只有SpringBoot应用的main方法执行过程中接收不同执行时点时间通知的监听者
ApplicationListener
ApplicationContextInitializer
CommandLineRunner
