<properties>
<junit.version>4.12</junit.version>
</properties>
<!-- 单元测试 -->
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>${junit.version}</version>
<scope>test</scope>
</dependency>
原文：https://www.cnblogs.com/yikuan-919/p/9704217.html