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

灰太狼 2022-05-25 00:17 168阅读 0赞

### 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：

![70][]

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。

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl8zOTIyMDQ3Mg_size_16_color_FFFFFF_t_70][]

[70]: /images/20220525/162941b9a36c497faaf59e5884a80608.png
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl8zOTIyMDQ3Mg_size_16_color_FFFFFF_t_70]: /images/20220525/5e4861fb74384e51a9ceb73745f62594.png