spring boot-启动及配置文件

 public static void main(String[] args) {
        SpringApplication.run(UserServiceApplication.class, args);
    }

public static void main(String[] args) {
        new SpringApplicationBuilder(MyConfigApp.class).properties(
                "spring.config.location=classpath:/abc.properties").run(args);
    }

    public static void main(String[] args) {
        new SpringApplicationBuilder(MyConfigApp.class).properties(
                "spring.profiles.active=windows", "server.port=9999").run(args);
    }