spring.profiles.active分区配置

spring:
  profiles:
    active: dev

#开发
---
spring:
  profiles: dev
hello:
  name: liu

#正式
---
spring:
  profiles: prod
hello:
  name: liuk

@Component
public class Global {

    public static String name;

    public static String getName() {
        return name;
    }

    @Value("${hello.name}")
    public void setName(String name) {
        Global.name= name;
    }
}

private static String url;
 
// 记得去掉static
@Value("${mysql.url}")
public void setDriver(String url) {
     JdbcUtils.url= url;
}