MyBatisPlus+Lombok实现分页功能的方法详解

<dependency> 
    <groupId>org.projectlombok</groupId> 
    <artifactId>lombok</artifactId> 
    <!--<version>1.18.12</version>--> 
</dependency>

@Data 
@AllArgsConstructor 
@NoArgsConstructor 
public class User { 
 
    private Long id; 
    private String name; 
    private String passWord; 
    private Integer age; 
    private String tel; 
 
}

IPage<T> selectPage (IPage<T> page, wrapper<T> querywrapper);

@springBootTest 
class mybatisplus01QuickstartApplicationTests { 
 
    @Autowired 
    private UserDao userDao; 
 
    //分页查询 
    @Test 
    void testSelectPage(){ 
        //1 创建IPage分页对象,设置分页参数,1为当前页码，3为每页显示的记录数 
        IPage<User> page=new Page<>(2,3); 
        //2 执行分页查询 
        userDao.selectPage(page,null); 
        //3 获取分页结果 
        System.out.println("当前页码值："+page.getCurrent()); 
        System.out.println("每页显示数："+page.getSize()); 
        System.out.println("一共多少页："+page.getPages()); 
        System.out.println("一共多少条数据："+page.getTotal()); 
        System.out.println("数据："+page.getRecords()); 
    } 
}

@Configuration 
public class MybatisPlusConfig { 
 
    @Bean 
    public MybatisPlusInterceptor mybatisPlusInterceptor(){ 
        //1 创建MybatisPlusInterceptor拦截器对象 
        MybatisPlusInterceptor mpInterceptor=new MybatisPlusInterceptor(); 
        //2 添加分页拦截器 
        mpInterceptor.addInnerInterceptor(new PaginationInnerInterceptor()); 
        return mpInterceptor; 
    } 
}

# 开启mp的日志（输出到控制台）
mybatis-plus:
  configuration:
    log-impl: org.apache.ibatis.logging.stdout.StdOutImpl