11.3.3 “main”方法

The final part of our application is the main method. This is just a standard method that follows the Java convention for an application entry point. Our main method delegates to Spring Boot’s SpringApplication class by calling run. SpringApplication bootstraps our application, starting Spring, which, in turn, starts the auto-configured Tomcat web server. We need to pass Example.class as an argument to the run method to tell SpringApplication which is the primary Spring component. The args array is also passed through to expose any command-line arguments. 应用程序最后部分是 main方法。 这仅仅是一个标准方法，它遵循Java应用程序进入点的规范。 我们的main方法通过调用 run来委托SpringBoot的SpringApplication类。 SpringApplication引导启动应用程序，从Spring开始，依次启动自动配置的Tomcat Web服务器。 我们需要将 Example.class作为一个参数传递给 run 方法来告诉SpringApplication哪个是主要的Spring组件。（main方法）args数组同样被传递暴露于任意命令行的参数。