SpringBoot中Mybatis分頁插件PageHelper簡單使用

 

 

 

• 1.pom文件依賴

  <!--pagehelp分頁插件-->
          <dependency>
              <groupId>com.github.pagehelper</groupId>
              <artifactId>pagehelper-spring-boot-starter</artifactId>
              <version>1.2.5</version>
          </dependency>

   

• 2.Mapper層

    

public interface MobileMapper {

    @Select("select * from mobile_phone")
    public List<Mobile> getAllMobile();
}

• 3.Service層開發

@Transactional
@Service
public class MobileServiceImpl implements MobileService {

    @Autowired
    private MobileMapper mm;

    /**
     * 查詢手機分頁
     * @param page
     * @param size
     * @return
     */
    @Override
    public PageInfo getMobilePageInfo(Integer page, Integer size) {
        //開始分頁
        PageHelper.startPage(page,size);
        //查詢數據
        List<Mobile> list = mm.getAllMobile();
        //將查到的list放入PageInfo類中
        PageInfo<Mobile> info = new PageInfo<>(list);
        return info;
    }
}

• 4.Controller層

@CrossOrigin(origins = "*",maxAge = 3600)
@RestController
@RequestMapping("/mobile")
public class MobileController {


    @Autowired
   private MobileService ms;

    /**
     * 查詢手機分頁
     * @return
     */
    @RequestMapping("/getAllMobile/{page}")
    public PageInfo getAllMobile(@PathVariable Integer page){
        System.out.println("page="+page);
        return ms.getMobilePageInfo(page,3);
    }

}