如果需要访问SpringApplication.run(…​)传入的参数，可以通过注解的形式注入
ApplicationArguments接口实例，该接口提供了一套访问String[]参数的方法和【不知道怎么翻译，原文是】as well as parsed option and non-option arguments:

import org.springframework.boot.*;
import org.springframework.beans.factory.annotation.*;
import org.springframework.stereotype.*;

@Component
public class MyBean {

    @Autowired
    public MyBean(ApplicationArguments args) {
        boolean debug = args.containsOption("debug");
        List<String> files = args.getNonOptionArgs();
        // if run with "--debug logfile.txt" debug=true, files=["logfile.txt"]
    }

}