如何强制spring只有一个活动配置文件？

Answer 1

spring_profiles_active环境变量实际上将设置活动概要文件。

如果希望获得活动概要文件，只需将环境添加到@SpringBootApplication类中，并引发任何类型的异常或在设置了多个概要文件的情况下关闭应用程序。

请看下面一个简单的实现。

import javax.annotation.PostConstruct;

import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.context.ApplicationContext;
import org.springframework.core.env.Environment;

@SpringBootApplication
public class SpringDemoApplication {

    private Environment environment;

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

    public SpringDemoApplication(Environment environment) {
        this.environment = environment;
    }

    @PostConstruct
    private void post() {
        if (!this.isThereJustOneActiveProfile()) {
            throw new RuntimeException("You must set just one profile.");
        }
    }

    private boolean isThereJustOneActiveProfile() {
        return (this.environment.getActiveProfiles().length == 1);
    }
}