mybatis与mybatis-plus 基本初始化配置

引入 mybatis

maven依赖引入

<dependency>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-starter-jdbc</artifactId>
</dependency>
<dependency>
    <groupId>org.mybatis.spring.boot</groupId>
    <artifactId>mybatis-spring-boot-starter</artifactId>
    <version>2.2.2</version>
</dependency>
<dependency>
    <groupId>com.mysql</groupId>
    <artifactId>mysql-connector-j</artifactId>
    <scope>runtime</scope>
</dependency>

application.yml

server:
  port: 8080
spring:
  datasource:
    username: root
    password: root
    url: jdbc:mysql://localhost:3306/mybatis?serverTimezone=UTC&useUnicode=true&characterEncoding=utf-8&useSSL=false
    driver-class-name: com.mysql.cj.jdbc.Driver

mybatis:
  type-aliases-package: com.itcast.mybatis.entity
  mapper-locations: classpath:mybatis/mapper/*.xml

文件目录对应的位置

引入mybatis-plus

application.yml

server:
  port: 8080
spring:
  datasource:
    username: root
    password: root
    url: jdbc:mysql://localhost:3306/mybatis?serverTimezone=UTC&useUnicode=true&characterEncoding=utf-8&useSSL=false
    driver-class-name: com.mysql.cj.jdbc.Driver

mybatis-plus:
  configuration:
    log-impl: org.apache.ibatis.logging.stdout.StdOutImpl #开启sql日志
    map-underscore-to-camel-case: true
    # 该配置就是将带有下划线的表字段映射为驼峰格式的实体类属性
  type-aliases-package: com.itcast.mybatis.entity
  mapper-locations: classpath:mybatis/mapper/*.xml

mapper

@Mapper
public interface TeacherMapper extends BaseMapper<ScTeacher> {
}

service

public interface TeacherService extends IService<ScTeacher> {
    List<ScTeacher> getTeacherList();
}

serviceImpl

@Service
public class TeacherServiceImpl extends ServiceImpl<TeacherMapper, ScTeacher> implements TeacherService {

    @Autowired
    private TeacherMapper teacherMapper;

    @Override
    public List<ScTeacher> getTeacherList() {
        return teacherMapper.selectList(null);
    }
}