mybatis-plus配置

1.引入mybatis-plus依赖

<!--        mybatis-plus-->
<dependency>
    <groupId>com.baomidou</groupId>
    <artifactId>mybatis-plus-boot-starter</artifactId>
    <version>3.3.2</version>
</dependency>

2.配置(application.yml)
1.配置数据源
1)导入数据库的驱动

<!--    导入mysql驱动    -->
<!-- https://mvnrepository.com/artifact/mysql/mysql-connector-java -->
<dependency>
   		 	<groupId>mysql</groupId>
   			 <artifactId>mysql-connector-java</artifactId>
   		 	<version>8.0.17</version>
</dependency>

2)在application.yml中配置数据源相关信息

spring:
datasource:
    				username: username
    				password: password
    				url: jdbc:mysql://ip:3306/gulimall_sms
    				driver-class-name: com.mysql.cj.jdbc.Driver

3)配置Mybatis-Plus
1)使用MapperScan(“xx.xxx.xxx.dao”)
2)告诉Mybatis-Plus，sql映射文件的位置
mybatis-plus:

//指定xml文件位置
  			mapper-locations: classpath:/mapper/**/*.xml
//主键自增
  			global-config:
   			 	db-config:
      					id-type: auto**加粗样式**