spring boot中如何根据配置文件动态注入依赖关系

myapp.dependency.url=http://example.com
myapp.dependency.username=admin
myapp.dependency.password=123456

@ConfigurationProperties(prefix = "myapp.dependency")
public class MyDependency {
    private String url;
    private String username;
    private String password;

    // 省略getter和setter方法
}

@SpringBootApplication
@EnableConfigurationProperties(MyDependency.class)
public class MyApp {
    public static void main(String[] args) {
        SpringApplication.run(MyApp.class, args);
    }
}

@Service
public class MyService {
    private final MyDependency myDependency;

    public MyService(MyDependency myDependency) {
        this.myDependency = myDependency;
    }

    // 使用myDependency进行业务操作
}