加载不了bootstrap.properties只需要在common增加依赖
<dependency> <groupId>org.springframework.cloud</groupId> <artifactId>spring-cloud-starter-bootstrap</artifactId> <version>3.0.3</version></dependency>
Injection of autowired dependencies failed; nested exception is java.lang.IllegalArgumentException: Could not resolve placeholder 'coupon.username' in value "${coupon.username}"
原文：https://www.cnblogs.com/liaozk/p/14920805.html
