Spring Boot configuration file (i)

First, the code structure

Config in application.properties file

Personal.province=Jiangsu
personal.city=Nanjing

Personalproperties.java Content

@Component Public classpersonalproperties {@Value ("${personal.province}")    PrivateString Province; @Value ("${personal.city}")    PrivateString City;  PublicString getprovince () {returnProvince; }     Public voidsetprovince (String province) { This. Province =Province; }     PublicString getcity () {returnCity ; }     Public voidsetcity (String city) { This. City =City ; }}

Democontroller.java Content

@RestController  Public class Democontroller {    @Autowired    personalproperties personalproperties;        @RequestMapping ("/demo")    private  String demo () {        return   personalproperties.getcity () + "," + personalproperties.getprovince ();}    }

Start Demoapplicatiuon.java

Web page Open Http://localhost:8080/demo

Page display: Nanjing, Jiangsu

Spring Boot configuration file (i)