springboot 在配置文件写参数注入到类中

@Configuration
//配置文件位置
@PropertySource("classpath:city.properties")
//前缀
@ConfigurationProperties(prefix = "city")
public class CityProperties {

    private Map<String,Integer> map = new HashMap<>();

    public Map<String, Integer> getMap() {
        return map;
    }

    public void setMap( Map<String, Integer> map) {
        this.map = map;
    }
}

city.map.V0441201=350
city.map.V0350600=351
city.map.V0520100=358
city.map.V0441800=363
city.map.V0330100=373
city.map.V0430400=374
city.map.V0130600=390


另一种

　　

@Value(value = "${R.host}")
public String Rhost;

@Value(value = "${R.port}")
public String Rport;

在application中写  
　　　　　　

R.host=localhost
R.port=6311

转载于:https://www.cnblogs.com/CHWLearningNotes/p/10150315.html