PageHelper采坑问题记录

 

 

关于PageHelper分页中当前页、每页数、总条数混乱问题

正确用法：

PageHelper.startPage(pageReq.getPage(), pageReq.getSize());

userList = userMapper.selectUserByOrgId(orgIdList, vo.getStatusList());

PageInfo pageInfo = new PageInfo<>(userList);

List<UserVo> list = new ArrayList<>();

list = userList.stream().map({

....

})

pageInfo.setList(list);

return pageInfo;

 

PageHelper.startPage(pageReq.getPage(), pageReq.getSize());

这个一定要直接放在mapper查询上方，不然传递当前页，每页数可能会有问题

PageInfo pageInfo = new PageInfo<>(userList);

userList查询的数据直接填充PageInfo

 

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错误用法

PageHelper.startPage(pageReq.getPage(), pageReq.getSize());

userList = userMapper.selectUserByOrgId(orgIdList, vo.getStatusList());

 

List<UserVo> list = new ArrayList<>();

list = userList.stream().map({

....

})

PageInfo pageInfo = new PageInfo<>(list);//放在后面填充list，会导致PageInfo当前页、每页数被覆盖。

return pageInfo;