1.  <!--mybatis相关依赖-->
    2.         <dependency>
    3.             <groupId>org.mybatis.spring.boot</groupId>
    4.             <artifactId>mybatis-spring-boot-starter</artifactId>
    5.             <version>2.2.0</version>
    6.         </dependency>
    8.         <!--mysql-->
    9.         <dependency>
    10.             <groupId>mysql</groupId>
    11.             <artifactId>mysql-connector-java</artifactId>
    12.             <version>8.0.26</version>
    13.         </dependency>
    15.         <!--druid-->
    16.         <dependency>
    17.             <groupId>com.alibaba</groupId>
    18.             <artifactId>druid</artifactId>
    19.             <version>1.1.10</version>
    20.         </dependency>