#!/usr/bin/env python
# -*- coding: utf-8 -*-
import tornado.ioloop
import tornado.web
listinfo = [{"username": "alex0", "email": "[email protected]"}, {"username": "alex1", "email": "[email protected]"},
{"username": "alex2", "email": "[email protected]"}]
for i in range(300):
temp = {"username": "hi" + str(i), "email": "[email protected]"+str(i)}
listinfo.append(temp) # create information
class LoginHandler(tornado.web.RequestHandler):
def get(self, page):
try:
page = int(page)
except:
page = 1
if page < 1:
page = 1
start = (page - 1) * 5
end = page * 5
current_list = listinfo[start:end] # show current page
all_page, c = divmod(len(listinfo), 5)
if c > 1:
all_page += 1
page2 = []
if all_page < 9:
s = 1
t = all_page
else:
if page < 5:
s = 1
t = 9
else:
if (page+5) > all_page:
s = all_page - 8
t = all_page
else:
s = page - 4
t = page + 5
head_page = "<a class = ‘active‘ href = ‘/login/1‘>首页</a>"
page2.append(head_page)
if page <= 1:
front_page = "<a class = ‘active‘ href = ‘javascript:void(0)‘;></a>"
else:
front_page = "<a class = ‘active‘ href = ‘/login/%s‘>上一页</a>" % (page - 1)
page2.append(front_page)
for p in range(s, t):
if p == page:
temp = "<a class = ‘active‘ href = ‘/login/%s‘>%s</a>" % (p, p)
page2.append(temp)
else:
temp = "<a href = ‘/login/%s‘>%s</a>" % (p, p)
page2.append(temp)
if page >= all_page:
next_page = "<a class = ‘active‘ href = ‘javascript:void(0);‘></a>"
else:
next_page = "<a class = ‘active‘ href = ‘/login/%s‘>下一页</a>" % (page + 1)
page2.append(next_page)
tail_page = ‘<a class = "active" href = "/login/%s ">尾页</a>‘ % all_page
page2.append(tail_page)
jump = """<input type=‘text‘/><a onclick=‘J(this);‘>GO</a>"""
script = """<script>
function J(ths)
{
var val = ths.previousElementSibling.value;
if(val.trim().length>0){
location.href = ‘/login/‘ + val;
}
}
</script>"""
page2.append(jump)
page2.append(script)
# use javascript
str_page1 = "".join(page2)
self.render(‘home.html‘, list_info=current_list, current=page,page2=str_page1)
def post(self, page):
username = self.get_argument("username", None)
email = self.get_argument("email", None)
data = {"username":username, "email": email}
listinfo.append(data)
self.redirect("/login/"+page) # stop current page
settings = {
‘template_path‘: ‘views‘,
}
application = tornado.web.Application([
(r"/login/(?P<page>\w*)", LoginHandler),
], **settings)
if __name__ == "__main__":
application.listen(8888)
tornado.ioloop.IOLoop.instance().start()
fenye.py
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Title</title>
<style >
.pager a{
display: inline-block;
padding:2px;
margin:5px;
background-color:red;
}
</style>
<style>
.pager a.active{
background-color:white;
color:blue;
}
</style>
</head>
<body>
<form method="post" action="/login/{{current}}">
<input type="text" name="username"/>
<input type="text" name="email"/>
<input type="submit" value="submit"/>
</form>
<h>show dataes as follow:</h>
<table border="1">
<thead>
<tr>
<th>user</th>
<th>email</th>
</tr>
</thead>
<tbody>
{% for line in list_info %}
<tr>
<td>{{line["username"]}}</td>
<td>{{line["email"]}}</td>
</tr>
{% end %}
</tbody>
</table>
<div class = "pager">
{% raw page2 %}
</div>
</body>
</html>
fenye.html
效果图片如下：
首页：
上一页：
尾页：
GO：
时间： 2024-10-25 13:11:00