Java PageHelper实现分页查询列表

@ApiOperation(value = "分页查询现金发放列表")
@GetMapping("/getCashGrantListByPage")
public ResponseBean getCashGrantListByPage(@Validated GetCashGrantListByPageEntity req) {
    try {
        PageInfo<CashGrantListDto> pageInfo = cashGrantService.getCashGrantListByPage(req);
        return ResponseBean.success(pageInfo);
    } catch (Exception e) {
        logger.error("分页查询现金发放列表出错", e);
        return ResponseBean.fail("分页查询现金发放列表出错");
    }
}

PageHelper.startPage(req.getCurrentPage(), req.getPageSize());