#### 数据访问层，在sc-core这个模块中，和普通的SpringBoot工程一致
- 配置文件 application.yml
```
spring:
datasource:
druid:
driver-class-name: com.mysql.jdbc.Driver
connection-init-sqls: set names utf8mb4
url: jdbc:mysql://localhost:3306/dgsc?useUnicode=true&characterEncoding=utf-8&autoReconnect=true&zeroDateTimeBehavior=convertToNull&allowMultiQueries=true&useSSL=false&allowPublicKeyRetrieval=true
type: com.alibaba.druid.pool.DruidDataSource
username: root
password: 123456
```
- pom文件引入依赖
```
<!--springboot 集成Mybatis所需jar配置 start -->
<!--支持使用 JDBC 访问数据库 -->
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-jdbc</artifactId>
</dependency>
<!--mybatis-->
<dependency>
<groupId>org.mybatis.spring.boot</groupId>
<artifactId>mybatis-spring-boot-starter</artifactId>
<version>1.3.2</version>
<exclusions>
<exclusion>
<groupId>org.apache.tomcat</groupId>
<artifactId>tomcat-jdbc</artifactId>
</exclusion>
</exclusions>
</dependency>
<!--mapper-->
<dependency>
<groupId>tk.mybatis</groupId>
<artifactId>mapper-spring-boot-starter</artifactId>
<version>2.1.0</version>
<exclusions>
<exclusion>
<artifactId>mybatis-spring-boot-starter</artifactId>
<groupId>org.mybatis.spring.boot</groupId>
</exclusion>
</exclusions>
</dependency>
<!--pagehelper-->
<dependency>
<groupId>com.github.pagehelper</groupId>
<artifactId>pagehelper-spring-boot-starter</artifactId>
<version>1.2.3</version>
</dependency>
<!--mysql-->
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
<scope>runtime</scope>
</dependency>
<!--druid依赖添加-->
<dependency>
<groupId>com.alibaba</groupId>
<artifactId>druid-spring-boot-starter</artifactId>
<version>1.1.10</version>
</dependency>
<!--springboot 集成Mybatis所需jar配置 end -->
```
- 其他和普通项目差不多了
- 测试Bean
- mapper接口类
- service 类
- 最后在Controller类进行测试
- postman测试插入成功
- 数据库可以看到插入成功
