SpringApplication: private void initialize(Object[] sources) { if (sources != null && sources.length > 0) { this.sources.addAll(Arrays.asList(sources)); } this.webEnvironment = deduceWebEnvironment(); // 从spring.factories里读取所有 ApplicationContextInitializer，并记入 SpringApplication setInitializers((Collection) getSpringFactoriesInstances( ApplicationContextInitializer.class)); // 从spring.factories里读取所有 ApplicationListener，并记入 SpringApplication setListeners((Collection) getSpringFactoriesInstances(ApplicationListener.class)); this.mainApplicationClass = deduceMainApplicationClass(); } public ConfigurableApplicationContext run(String... args) { StopWatch stopWatch = new StopWatch(); stopWatch.start(); ConfigurableApplicationContext context = null; FailureAnalyzers analyzers = null; configureHeadlessProperty(); // 从spring.factories里读取所有 SpringApplicationRunListener，监听springboot启动，参考：org.springframework.boot.context.event.EventPublishingRunListener SpringApplicationRunListeners listeners = getRunListeners(args); listeners.starting(); try { ApplicationArguments applicationArguments = new DefaultApplicationArguments( args); ConfigurableEnvironment environment = prepareEnvironment(listeners, applicationArguments); Banner printedBanner = printBanner(environment); // web环境下默认的 ApplicationContext： org.springframework.boot.context.embedded.AnnotationConfigEmbeddedWebApplicationContext // 非web环境下默认的 ApplicationContext： org.springframework.context.annotation.AnnotationConfigApplicationContext context = createApplicationContext(); analyzers = new FailureAnalyzers(context); // org.springframework.cloud.bootstrap.config.PropertySourceBootstrapProperties 会通过 ApplicationContextInitializer，准备 PropertySource // PropertySourceBootstrapProperties 收集 PropertySourceLocator 来获得PropertySource // 其中 org.springframework.cloud.config.client.ConfigServicePropertySourceLocator 是 Cloud Config Client 提供的 PropertySourceLocator prepareContext(context, environment, listeners, applicationArguments, printedBanner); // 调用 context.refresh 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); } }
转载于:https://www.cnblogs.com/wangdaijun/p/9026327.html
相关资源：数据结构—成绩单生成器
