spring boot 配置文件（一）

一、代码结构

application.properties文件里配置

personal.province=JiangSu
personal.city=NanJing

PersonalProperties.java内容

@Component
public class PersonalProperties {


    @Value("${personal.province}")
    private String province;

    @Value("${personal.city}")
    private String city;

    public String getProvince() {
        return province;
    }

    public void setProvince(String province) {
        this.province = province;
    }

    public String getCity() {
        return city;
    }

    public void setCity(String city) {
        this.city = city;
    }
}

DemoController.java内容

@RestController
public class DemoController {

    @Autowired
    PersonalProperties personalProperties;
    
    @RequestMapping("/demo")
    private String demo() {
        return   personalProperties.getCity() + " ， "+ personalProperties.getProvince();
    }
}

启动DemoApplicatiuon.java

网页打开http://localhost:8080/demo

页面显示：NanJing , JiangSu