> For the complete documentation index, see [llms.txt](https://jack80342.gitbook.io/spring-boot/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://jack80342.gitbook.io/spring-boot/iv.-spring-boot-features/23.-springapplication/23.7.-accessing-application-arguments.md).

# 23.7. 访问应用参数

如果需要获取传递给`SpringApplication.run(…)`的应用参数，你可以注入一个`org.springframework.boot.ApplicationArguments`类型的bean。`ApplicationArguments`接口即提供对原始`String[]`参数的访问，也提供对解析成`option`和`non-option`参数的访问：

```java
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"]
    }

}
```

**注** Spring Boot也会注册一个包含Spring `Environment`属性的`CommandLinePropertySource`，这就允许你使用`@Value`注解注入单个的应用参数。