一文学会mybatisPlus分页对象IPage的使用

比较简单，不废话，直接上代码

首先引入maven依赖

com.baomidou

mybatis-plus-boot-starter

3.3.0

自己封装的PageList

@ApiModel

@Data

public class PageList implements Serializable {

private static final long serialVersionUID = 1412759446332294208L;

@ApiModelProperty(value = "每页数量")

private int pageSize;

@ApiModelProperty(value = "当前页")

private int curPage;

@ApiModelProperty(value = "数据总条数")

private long totalCount;

@ApiModelProperty(value = "总页数")

private int totalPage;

@ApiModelProperty(value = "数据LIST")

private List list = new ArrayList();

@ApiModelProperty(value = "数据合计")

private Object dataTotal;

public PageList() {

}

public PageList(int curPage, int pageSize, long totalItems) {

this.curPage = curPage;

this.pageSize = pageSize;

this.totalCount = totalItems;

this.totalPage = (int) Math.ceil((double) totalItems / pageSize);

}

public PageList(PageInfo page) {

this.list.addAll(page.getList());

this.totalCount = (int) page.getTotal();

this.pageSize = (int) page.getSize();

this.curPage = (int) page.getPageNum();

this.totalPage = page.getPages();

}

}

Controller层

@Autowired

private TestService testService;

/**

* 分页查询列表

* @param page

* @param pageSize

* @return

*/

@PostMapping(value = "getPageList")

public PageList getPageList(Integer page,Integer pageSize) {

IPage pageInfo = testService.getPageList(page,pageSize);

PageList pageList = new PageList(new Long(pageInfo.getCurrent()).intValue(),

new Long(pageInfo.getSize()).intValue(), pageInfo.getTotal());

pageList.setList(pageInfo.getRecords());

return pageList;

}

Service层

public interface TestService {

IPage getPageList(Integer page, Integer pageSize);

}

ServiceImpl层

@Autowired

private TestMapper testMapper;

@Override

public IPage getPageList(Integer page, Integer pageSize) {

Page page = new Page(page,pageSize);

List result = testMapper.getPageList(page);

page.setRecords(result);

return page;

}

mapper层代码暂时就不写在这了，都是sql语句，结合以上结构，添加自己业务的参数进去即可

PS：TestVo为自己要返回的实体类对象