springboot單元測試：java.lang.NoClassDefFoundError: org/springframework/core/annotation/MergedAnnotations$SearchStrategy

https://www.it610.com/article/1295998852888862720.htm

springboot 單元測試啟動時報錯，拋出如下異常：

java.lang.NoClassDefFoundError: org/springframework/core/annotation/MergedAnnotations$SearchStrategy 

無法加載到注解包，后來懷疑是測試依賴引錯了
原來的依賴是

<dependency> <groupId>org.springframework</groupId> <artifactId>spring-test</artifactId> <version>5.2.1.RELEASE</version> </dependency> 

這是spring框架的單元自測依賴，不適用springboot的單元自測，將依賴改成如下依賴即可：

<dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-test</artifactId> </dependency>