service 接口代码

PageInfo findByPage2(Integer currPage, Integer pageSize);

service实现类代码

public PageInfo findByPage2(Integer currPage, Integer pageSize) {

PageHelper.startPage(currPage,pageSize);

List productList = productDao.findAll();

PageInfo pageInfo = new PageInfo(productList,3);

return pageInfo;

}

controller控制层代码

@RequestMapping("/findAll2")

public ModelAndView findAll2(@RequestParam(value = "currPage", defaultValue = "1") Integer currPage,

@RequestParam(value = "pageSize", required = false, defaultValue = "3") Integer pageSize) {

// 准备分页数据

PageInfo pageInfo = productService.findByPage2(currPage, pageSize);

ModelAndView modelAndView = new ModelAndView();

modelAndView.addObject("pageInfo", pageInfo);

// 指定页面

modelAndView.setViewName("product-listhelper");

return modelAndView;

}