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处理分页

场景

对分页来说，我们最感兴趣的是下面几个信息

  • 总共有多少页
  • 当前是第几页
  • 是否可以上一页和下一页

代码

下面的代码演示了如何获取分页的总数以及当前是第几页

pagination.html

	<html>
		<head>
			<meta http-equiv="content-type" content="text/html;charset=utf-8" />
			<title>Pagination</title>		
			<script type="text/javascript" async="" src="http://ajax.googleapis.com/ajax/libs/jquery/1.9.1/jquery.min.js"></script>
			<link href="http://netdna.bootstrapcdn.com/twitter-bootstrap/2.3.2/css/bootstrap-combined.min.css" rel="stylesheet" />		
			<script type="text/javascript">
				$(document).ready(function(){
					$('.pagination').find('li').click(function(){
						$(this).parent().find('li').removeClass('active');
						$(this).addClass('active');
					});
				});
			</script>
		</head>
			
		<body>
			<h3>Pagination</h3>
			<div class="row-fluid">
				<div class="span6">		
					<div class="pagination pagination-large">
						<ul>
							<li><a href="#">Prev</a></li>
							<li class="active"><a href="#">1</a></li>
							<li><a href="#">2</a></li>
							<li><a href="#">3</a></li>
							<li><a href="#">4</a></li>
							<li><a href="#">5</a></li>
							<li><a href="#">Next</a></li>
						</ul>
					</div>
				</div>		
			</div>		
		</body>
		<script src="http://netdna.bootstrapcdn.com/twitter-bootstrap/2.3.2/js/bootstrap.min.js"></script>
	</html>

pagination.py

# -*- coding: utf-8 -*- 
from selenium import webdriver
from time import sleep
import os
if 'HTTP_PROXY'in os.environ: del os.environ['HTTP_PROXY']

dr = webdriver.Chrome()
file_path = 'file:///' + os.path.abspath('pagination.html')

dr.get(file_path)

# 获得所有分页的数量
# -2是因为要去掉上一个和下一个
total_pages = len(dr.find_element_by_class_name('pagination').find_elements_by_tag_name('li')) - 2
print "total page is %s" %(total_pages)

# 获取当前页面的url以及当前页面是第几页
current_page = dr.find_element_by_class_name('pagination').find_element_by_class_name('active')
print "current page is %s" %(current_page.text)

dr.quit()