SpringBoot读取properties文件，以及SpEL

最新推荐文章于 2025-08-02 23:29:06 发布

MyFreeIT

最新推荐文章于 2025-08-02 23:29:06 发布

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分类专栏： Spring 文章标签： spring boot java 后端 SpEL

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Spring Expression Language (SpEL)
用例参考

定义order.properties

order.id=1,2,3,4,5,6
order.name=TSL,奔驰,宝马,法拉利,保时捷,比亚迪
order.buyer={Smith:'55',Kevin:'33',Claire:'12',Cindy:'45',Char:'33',Michael:'18'}

定义Orders POJO

@Data
@Configuration                    
@PropertySource(value="classpath:order.properties",encoding="utf-8")
public class Orders {
	@Value("#{'${order.id}'.split('\\,')}")
	List<String> orderIds;
	@Value("#{'${order.name}'.split('\\,')}")
	List<String> orderNames;
	@Value("#{${order.buyer}}")
	Map<String,String> buyer;
	@Value("#{${order.buyer}['Michael']?:'unknown man'}")
	String buyName;
	@Value("#{systemProperties['java.home']}")
	String javaHome;
	@Value("#{systemProperties['user.dir']}")
	String userDir;}

测试用例

@Slf4j
@SpringBootTest
class LoadDataFromPropertiesTest {
	
	@Resource 
	Orders orders;
	
	@Test
		void test() {
		for (String orderID:orders.getOrderIds()) {
			log.info(orderID);
		}
		for(String orderName:orders.getOrderNames()) {
			log.info(orderName);
		}
		log.info(orders.getBuyer().toString());
		log.info(orders.getBuyName());
		log.info(orders.javaHome);
		log.info(orders.userDir);
	}
}