spring boot源码

Springboot30StartupApplication【10】->SpringApplication.run(Springboot30StartupApplication.class, args); SpringApplication【1332】->return run(new Class<?>[] { primarySource }, args); SpringApplication【1343】->return new SpringApplication(primarySources).run(args); SpringApplication【1343】->SpringApplication(primarySources) # 加载各种配置信息，初始化各种配置对象 SpringApplication【266】->this(null, primarySources); SpringApplication【280】->public SpringApplication(ResourceLoader resourceLoader, Class<?>... primarySources) SpringApplication【281】->this.resourceLoader = resourceLoader; # 初始化资源加载器 SpringApplication【283】->this.primarySources = new LinkedHashSet<>(Arrays.asList(primarySources)); # 初始化配置类的类名信息（格式转换） SpringApplication【284】->this.webApplicationType = WebApplicationType.deduceFromClasspath(); # 确认当前容器加载的类型 SpringApplication【285】->this.bootstrapRegistryInitializers = getBootstrapRegistryInitializersFromSpringFactories(); # 获取系统配置引导信息 SpringApplication【286】->setInitializers((Collection) getSpringFactoriesInstances(ApplicationContextInitializer.class)); # 获取ApplicationContextInitializer.class对应的实例 SpringApplication【287】->setListeners((Collection) getSpringFactoriesInstances(ApplicationListener.class)); # 初始化监听器，对初始化过程及运行过程进行干预 SpringApplication【288】->this.mainApplicationClass = deduceMainApplicationClass(); # 初始化了引导类类名信息，备用 SpringApplication【1343】->new SpringApplication(primarySources).run(args) # 初始化容器，得到ApplicationContext对象 SpringApplication【323】->StopWatch stopWatch = new StopWatch(); # 设置计时器 SpringApplication【324】->stopWatch.start(); # 计时开始 SpringApplication【325】->DefaultBootstrapContext bootstrapContext = createBootstrapContext(); # 系统引导信息对应的上下文对象 SpringApplication【327】->configureHeadlessProperty(); # 模拟输入输出信号，避免出现因缺少外设导致的信号传输失败，进而引发错误（模拟显示器，键盘，鼠标...） java.awt.headless=true SpringApplication【328】->SpringApplicationRunListeners listeners = getRunListeners(args); # 获取当前注册的所有监听器 SpringApplication【329】->listeners.starting(bootstrapContext, this.mainApplicationClass); # 监听器执行了对应的操作步骤 SpringApplication【331】->ApplicationArguments applicationArguments = new DefaultApplicationArguments(args); # 获取参数 SpringApplication【333】->ConfigurableEnvironment environment = prepareEnvironment(listeners, bootstrapContext, applicationArguments); # 将前期读取的数据加载成了一个环境对象，用来描述信息 SpringApplication【333】->configureIgnoreBeanInfo(environment); # 做了一个配置，备用 SpringApplication【334】->Banner printedBanner = printBanner(environment); # 初始化logo SpringApplication【335】->context = createApplicationContext(); # 创建容器对象，根据前期配置的容器类型进行判定并创建 SpringApplication【363】->context.setApplicationStartup(this.applicationStartup); # 设置启动模式 SpringApplication【337】->prepareContext(bootstrapContext, context, environment, listeners, applicationArguments, printedBanner); # 对容器进行设置，参数来源于前期的设定 SpringApplication【338】->refreshContext(context); # 刷新容器环境 SpringApplication【339】->afterRefresh(context, applicationArguments); # 刷新完毕后做后处理 SpringApplication【340】->stopWatch.stop(); # 计时结束 SpringApplication【341】->if (this.logStartupInfo) { # 判定是否记录启动时间的日志 SpringApplication【342】-> new StartupInfoLogger(this.mainApplicationClass).logStarted(getApplicationLog(), stopWatch); # 创建日志对应的对象，输出日志信息，包含启动时间 SpringApplication【344】->listeners.started(context); # 监听器执行了对应的操作步骤 SpringApplication【345】->callRunners(context, applicationArguments); # SpringApplication【353】->listeners.running(context); # 监听器执行了对应的操作步骤