Mybatis-plus使用分页进行分页查询

首先先配置配置文件

@Configuration
public class MybatisPlusConfig {
    @Bean
    public PaginationInterceptor paginationInterceptor() {
        return new PaginationInterceptor();
    }

}

2.进行分页查询

   @Test
    public void selectPage() {
        QueryWrapper<User> wrapper = new QueryWrapper<>();
        wrapper.ge("age",26);
        Page<User> page = new Page<>(1, 2);
        IPage<User> userIPage = userMapper.selectPage(page, wrapper);
        System.out.println("总条数"+userIPage.getTotal());
        System.out.println("总页数"+userIPage.getPages());

    }

   @Test
    public void selectPage() {
        QueryWrapper<User> wrapper = new QueryWrapper<>();
        wrapper.ge("age",26);
        Page<User> page = new Page<>(1, 2);
        IPage<Map<String,Object>> userIPage = userMapper.selectMapsPage(page, wrapper);
        System.out.println("总条数"+userIPage.getTotal());
        System.out.println("总页数"+userIPage.getPages());
    }