SpringBoot整合MyBatis实战

<dependency>
            <groupId>org.mybatis.spring.boot</groupId>
            <artifactId>mybatis-spring-boot-starter</artifactId>
            <version>2.3.0</version>
        </dependency>
        <dependency>
            <groupId>com.mysql</groupId>
            <artifactId>mysql-connector-j</artifactId>
            <scope>runtime</scope>
        </dependency>
        <dependency>
            <groupId>mysql</groupId>
            <artifactId>mysql-connector-java</artifactId>
            <scope>runtime</scope>
        </dependency>
        <dependency>
            <groupId>com.alibaba</groupId>
            <artifactId>druid-spring-boot-starter</artifactId>
            <version>1.1.23</version>
        </dependency>

spring:
  application:
    name: demoTest  # 项目名
  datasource:
    druid:
      driver-class-name: com.mysql.cj.jdbc.Driver
      url: jdbc:mysql://localhost:3306/peixun?serverTimezone=Asia/Shanghai&useUnicode=true&characterEncoding=utf-8&zeroDateTimeBehavior=convertToNull&useSSL=false&allowPublicKeyRetrieval=true
      username: root
      password: root
#上面是mysql 数据库连接配置 
  mybatis:
  configuration:
    map-underscore-to-camel-case: true                      #是否开启驼峰命名
    log-impl: org.apache.ibatis.logging.stdout.StdOutImpl   # mybatis 日志打印
  mapper-locations: classpath:mapper/*.xml                  # resources 目录下mapper.xml 对应的文件
  type-aliases-package: com.example.demotest.pojo           # 实体类所在的项目包路径