Maven依赖管理
Maven查找包:https://mvnrepository.com/
多个导入项目只能在一个dependencies中创建,不然会报错
<dependencies> <dependency> <groupId>junit</groupId> <artifactId>junit</artifactId> <version>4.11</version> <scope>test</scope> </dependency> <!--导入mysql--> <dependency> <groupId>mysql</groupId> <artifactId>mysql-connector-java</artifactId> <version>5.1.26</version> </dependency> </dependencies>