本文共 5906 字，大约阅读时间需要 19 分钟。

django中有自带的分页模块Paginator,想Paginator提供对象的列表，就可以提供每一页上对象的方法。

这里的话不讲解Paginator,而是自定义一个分页类来完成需求：

class Pagination(object):    """用于Model字段值的选择"""     def __init__(self):        pass     @classmethod    def create_pagination(self, from_name='', model_name='',                          cur_page=1, start_page_omit_symbol = '...',                          end_page_omit_symbol = '...', one_page_data_size=10,                          show_page_item_len=9):        """通过给的model和分页参数对相关model进行分页        Args:             from_name: 导入模块的 from后面的参数                from {from_name} import model_name            mode_name: 需要导入的模块名                from from_name import {model_name}            cur_page: 当前显示的是第几页            start_page_omit_symbol: 超出的页数使用怎么样的省略号(前)                ... 2 3 4            end_page_omit_symbol: 超出的页数使用怎么样的省略号(后)                1 2 3 4 ...            one_page_data_size: 每一页显示几行            show_page_item_len: 显示几个能点击的页数        Return:             pagination: dict                    pagination = {                         'objs': objs, # 需要显示model数据                        'all_obj_counts': all_obj_counts, # 一共多少行数据                        'start_pos': start_pos, # 数据分页开始的数据                         'end_pos': end_pos, # 数据分页结束的数据                         'all_page': all_page, # 一共有多少页                        'cur_page': cur_page, # 当前的页码                        'pre_page': pre_page, # 上一页的页码                        'next_page': next_page, # 下一页的页码                        'page_items': page_items, 能点击的页数                        'start_page_omit_symbol': start_page_omit_symbol, # 开始的省略号                        'end_page_omit_symbol': end_page_omit_symbol, # 结束的省略号                    }          Raise: None        """        # 如果没有输入导入模块需要的相关信息直接退出        if not from_name or not model_name:            return None         import_str = 'from {from_name} import {model_name}'.format(                                          from_name = from_name,                                          model_name = model_name)        # 导入模块        exec import_str         start_pos = (cur_page - 1) * one_page_data_size          end_pos = start_pos + one_page_data_size           # 查找需要的model数据        find_objs_str = ('{model_name}.objects.all()'                         '[{start_pos}:{end_pos}]'.format(                                               model_name = model_name,                                               start_pos = start_pos,                                               end_pos = end_pos))        objs = eval(find_objs_str)             # 计算总共的页数        find_objs_count_str = '{model_name}.objects.count()'.format(                                               model_name = model_name)        all_obj_counts = eval(find_objs_count_str)        all_page = all_obj_counts / one_page_data_size        remain_obj = all_obj_counts % one_page_data_size        if remain_obj > 0:            all_page += 1         # 限制当前页不能小于1和并且大于总页数        cur_page = 1 if cur_page < 1 else cur_page        cur_page = all_page if cur_page > all_page else cur_page         # 获得显示页数的最小页        start_page = cur_page - show_page_item_len / 2        if start_page > all_page - show_page_item_len:            start_page = all_page - show_page_item_len + 1        start_page = 1 if start_page < 1 else start_page         # 获得显示页数的最大页        end_page = cur_page + show_page_item_len / 2        end_page = all_page if end_page > all_page else end_page        if end_page < show_page_item_len and all_page > show_page_item_len:            end_page = show_page_item_len         # 获得上一页        pre_page = cur_page - 1        pre_page = 1 if pre_page < 1 else pre_page         # 获得下一页        next_page = cur_page + 1        next_page = all_page if next_page > all_page else next_page         # 处理省略符，是否显示        if start_page <= 1:            start_page_omit_symbol = ''                 if end_page >= all_page:            end_page_omit_symbol = ''         # 创建能点击的展示页码        page_items = range(start_page, end_page + 1)         pagination = {            'objs': objs,            'all_obj_counts': all_obj_counts,            'start_pos': start_pos,            'end_pos': end_pos,            'all_page': all_page,            'cur_page': cur_page,            'pre_page': pre_page,            'next_page': next_page,            'page_items': page_items,            'start_page_omit_symbol': start_page_omit_symbol,            'end_page_omit_symbol': end_page_omit_symbol,        }         return pagination

def blogpage(request):        #ojt = BlogPost.object.all()        #p = Paginator(ojt,2)        #page_count = p.count        #page_data = p.page(page)        #template = 'blogpage.html'        #info = {'page_data':page_data,'page_count':page_count}        #return render(request,template,{'page_data':page_data,'page_count':page_count})        try:                cur_page = int(request.GET.get('cur_page', '1'))         except ValueError:                cur_page = 1        pagination = Pagination.create_pagination(                         from_name='blog.models',                          model_name='BlogPost',                         cur_page=cur_page,                         start_page_omit_symbol = '...',                          end_page_omit_symbol = '...',                         one_page_data_size=1,                          show_page_item_len=5)        return render(request, 'blogpage.html',{'pagination':pagination})