springboot的5种读取配置方式（4）：通过application.yml读取

4.通过application.yml读取:

/**
 * 学生实体类
 * Created by ASUS on 2018/5/4
 */

@Component("Student")
public class Student {
    @Value("${student.name}")
    private String name;
    @Value("${student.age}")
    private  int age;

    public String getName() {
        return name;
    }

    public void setName(String name) {
        this.name = name;
    }

    public int getAge() {
        return age;
    }

    public void setAge(int age) {
        this.age = age;
    }

    public Student(String name, int age) {
        this.name = name;
        this.age = age;
    }

    public Student() {
    }

    @Override
    public String toString() {
        return "Student{" +
                "name='" + name + '\'' +
                ", age=" + age +
                '}';
    }
}

/**
 * springboot启动类
 *
 */

@SpringBootApplication
//读取resources目录下的application.yml
@PropertySource("classpath:application.yml")
public class Application
{
    public static void main( String[] args )
    {
        ApplicationContext applicationContext= SpringApplication.run(Application.class,args);
        Student student= (Student) applicationContext.getBean(Student.class);
        System.out.println("message:"+student.toString());

    }


}

application.yml内容：

#yml文件的配置格式是key:value
student:
  name: 小明
  age : 25

测试结果：

我的座右铭：不会，我可以学；落后，我可以追赶；跌倒，我可以站起来；我一定行。