基本用法

1.pom.xml

<!--    mybatisPlus-->
<dependency>
  <groupId>com.baomidou</groupId>
  <artifactId>mybatis-plus-boot-starter</artifactId>
  <version>2.3</version>
</dependency>

2.实体类

@Data
@TableName("student")
public class Student {
    @TableId(value = "sid", type = IdType.AUTO)
    private Integer sid;

    @TableField("name")
    private String name;
    
    private Integer age;
}

3.mapper

public interface StudentMapper extends BaseMapper<Student> {
}

4.测试类

@SpringBootTest
@RunWith(SpringRunner.class)
public class TestStudent {
    @Resource
    private StudentMapper studentMapper;

    @Test
    public void test(){
        List<Student> list = studentMapper.selectList(null);
        list.forEach(System.out::println);
    }
}