<dependencies>
    <!--分页插件-->
    <dependency>
        <groupId>com.github.pagehelper</groupId>
        <artifactId>pagehelper-spring-boot-starter</artifactId>
        <version>1.4.2</version>
    </dependency>
</dependencies>

@Service
public class EmpServiceImpl implements EmpService {
    @Autowired
    private EmpMapper empMapper;
    @Override
    public PageBean pageList(String name, Integer gender, LocalDate begin, LocalDate end, Integer page, Integer pageSize) {
        // 开启分页查询
        PageHelper.startPage(page,pageSize);
        // 查询
        List<Emp> empList = empMapper.pageList(name,gender,begin,end);
        // 放入查询结果
        Page<Emp> p = (Page<Emp>) empList;
        // 填充返回结果
        PageBean pageBean = new PageBean(p.getTotal(),p.getResult());
        return pageBean;
    }
}