1、系統自動生成 SpringApplication.run(XX.class, args); 2、創建SpringApplication對象 SpringApplication app = new SpringApplication(DemoApplication.class); app.setBannerMode(Banner.Mode.OFF); app.run(); 3、Fluent Builder API 構造者模式 也可以把參數放在run中 1)new SpringApplicationBuilder(DemoApplication.class).bannerMode(Banner.Mode.CONSOLE).run(); 2)new SpringApplicationBuilder().sources(DemoApplication.class).bannerMode(Banner.Mode.OFF).run(); 3)new SpringApplicationBuilder().sources(DemoApplication.class).bannerMode(Banner.Mode.OFF).build(args).run();