spring&pom两种获取profile的方式

一、原理：

　　1、实现ApplicationContextAware（当一个类实现了ApplicationContextAware这个接口之后，这个类就可以通过setApplicationContext方法获得ApplicationContext中的上下文），获取context。通过方法：context.getEnvironment().getActiveProfiles()获取激活的profile。

　　2、通过service中成员变量上的注解：@Value("${spring.profiles.active}")，获取yaml中的profile

二、上代码：

通过context获取：

package com.test;

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.context.ApplicationContext;
import org.springframework.context.ApplicationContextAware;
import org.springframework.stereotype.Service;

@Service
public class SpringContextUtil implements ApplicationContextAware {
    private static final Logger logger = LoggerFactory.getLogger(SpringContextUtil.class);

    private static final String PRODUCTION_PROFILE = "production";
    private static final String STAGE_PROFILE = "stage";

    private static ApplicationContext context = null;

    public static <T> T getBean(String beanName) {
        return (T) context.getBean(beanName);
    }

    public static String[] getActiveProfileList() {
        return context.getEnvironment().getActiveProfiles();
    }

    /**
     * 判断当前环境是否是线上环境：production或stage
     * @return
     */
    public static boolean isProfileActived() {
        String[] profiles = context.getEnvironment().getActiveProfiles();
        if (profiles == null || profiles.length == 0) {
            return false;
        }
        for (String val : profiles) {
            logger.info("current profile from context is: {}", val);
            if (val.equalsIgnoreCase(PRODUCTION_PROFILE) || val.equalsIgnoreCase(STAGE_PROFILE)) {
                return true;
            }
        }
        return false;
    }

    @Override
    public void setApplicationContext(ApplicationContext applicationContext) {
        this.context = applicationContext;
    }

}

通过yaml(或properties)文件获取

package com.test;

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.stereotype.Service;

@Service
public class SpringProfileService {
    private static final Logger logger = LoggerFactory.getLogger(SpringProfileService.class);

    private static final String PRODUCTION_PROFILE = "production";
    private static final String STAGE_PROFILE = "stage";

    @Value("${spring.profiles.active}")
    private String profile;

    public boolean isProfileActived() {
        logger.info("current profile from yaml is: {}", profile);
        if (profile.equalsIgnoreCase(PRODUCTION_PROFILE) || profile.equalsIgnoreCase(STAGE_PROFILE)) {
            return true;
        }
        return false;
    }
}

单元测试代码：

package com.**.service;

import com.**.Application;
import com.test.SpringContextUtil;
import com.test.SpringProfileService;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.test.context.SpringBootTest;
import org.springframework.test.context.junit4.SpringRunner;

@SpringBootTest(classes = Application.class)
@RunWith(SpringRunner.class)
public class ServiceTest {
    private static final Logger logger = LoggerFactory.getLogger(ServiceTest.class);

    @Test
    public void test1() {
        Boolean actived = SpringContextUtil.isProfileActived();
        logger.info(actived.toString());
    }


    @Autowired
    SpringProfileService springProfileService;

    @Test
    public void test2() {
        Boolean actived = springProfileService.isProfileActived();
        logger.info(actived.toString());
    }
}

其他。pom的相关配置截图，yaml的相关配置截图