springboot获取配置文件中的内容

代码:

GrilApplication.java

 @SpringBootApplication
 public class GrilApplication {

     public static void main(String[] args) {
         SpringApplication.run(GrilApplication.class, args);
     }
 }

application.yml

 server:
   port:
 gril:
   cupSize: B
   age: 

GrilProperties.java

 @Component
 @ConfigurationProperties(prefix = "gril")
 public class GrilProperties {
     private String cupSize;
     private Integer age;

     public String getCupSize() {
         return cupSize;
     }

     public void setCupSize(String cupSize) {
         this.cupSize = cupSize;
     }

     public Integer getAge() {
         return age;
     }

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

HelloController.java

@Controller
public class HelloController {

    @Autowired
    private GrilProperties grilProperties;
    @RequestMapping(value = "/hello",method = RequestMethod.GET)
    public  String say(){

        return grilProperties.getCupSize();
    }
}

访问地址http://127.0.0.1:8089/hello