web.py需要使用python2.X，所以安装python版本2.7.9
web.py 是一个轻量级Python web框架，它简单而且功能强大
web.py安装
安装python
(1)使用pip
pip install web.py
安装的目录Python27Libsite-packages
(2) https://github.com/webpy/webpy下载release版本的web.py
下载下来之后，解压，打开cmd，cd到解压目录下，输入
python setup.py install
查看安装是否成功，pip list
web.py 测试
新建hello.py
import web
urls = (
'/(.*)', 'hello'
)
app = web.application(urls, globals())
class hello:
def GET(self, name):
if not name:
name = 'World'
return 'Hello, ' + name + '!'
if __name__ == "__main__":
app.run()
进入保存的目录
python hello.py
在浏览器输入http://127.0.0.1:8080/
命令窗口显示
第一部分（‘/’）是一个匹配URL 的正则表达式；第二部分（‘index’）是一个类名，匹配的请求将会被发送过去
若要制定另外的端口使用python code.py 后面添加IP 地址/端口
如：http://192.168.5.239:8080/aa
web.py的输出html页面
import web
urls = (
'/(.*)', 'hello'
)
app = web.application(urls, globals())
class hello:
def GET(self, name):
return open(r'aa.html','r').read()
if __name__ == "__main__":
app.run()
aa.html页面是已有的html页面
web.py学习
1.URL映射
完全匹配
模糊匹配
带组匹配
import web
urls = (
'/index','index',
'/blog/d+','blog',
'/(.*)', 'hello'
)
app = web.application(urls, globals())
class index:
def GET(self):
return 'index method'
class blog:
def GET(self):
return 'blog method'
class hello:
def GET(self, name):
if not name:
name = 'World'
return 'Hello, ' + name + '!'
if __name__ == "__main__":
app.run()
注：
范围大的要放在后面
2.请求处理
请求参数获取
web.input()
请求头获取
web.ctx.env
hello.py
import web
urls = (
'/index','index',
'/blog/d+','blog',
'/(.*)', 'hello'
)
app = web.application(urls, globals())
class index:
def GET(self):
query = web.input()
return query
class blog:
def POST(self):
data = web.input()
return data
class hello:
def GET(self, name):
return open(r'hello.html').read()
if __name__ == "__main__":
app.run()
hello.html
<html> <head> <title>hello</title> <head> <body> <form action="/blog/123" method="POST"> <input type="text" name="id" value="" /> <input type="text" name="name" value="" /> <input type="submit" value="submit"> </form> </body> </html>
表单提交后
修改代码获取请求头
import web
urls = (
'/index','index',
'/blog/d+','blog',
'/(.*)', 'hello'
)
app = web.application(urls, globals())
class index:
def GET(self):
query = web.input()
return query
class blog:
def POST(self):
data = web.input()
return data
def GET(self):
data1 = web.ctx.env
return data1
class hello:
def GET(self, name):
return open(r'hello.html').read()
if __name__ == "__main__":
app.run()
3.相应处理
（1）模板文件读取
render.index("参数")
hello.py
import web
render = web.template.render("templates")
urls = (
'/index','index',
'/blog/d+','blog',
'/(.*)', 'hello'
)
app = web.application(urls, globals())
class index:
def GET(self):
query = web.input()
return query
class blog:
def POST(self):
data = web.input()
return data
def GET(self):
data1 = web.ctx.env
return data1
class hello:
def GET(self, name):
return render.hello1(name)
if __name__ == "__main__":
app.run()
在hello.py同级目录下，存在templates/hello1.html
hello1.html
$def with(name) <html> <head> <title>hello1</title> <head> <body> <h1>hello1,$name</h1> <form action="/blog/123" method="POST"> <input type="text" name="id" value="" /> <input type="text" name="name" value="" /> <input type="submit" value="submit"> </form> </body> </html>
（2）结果数据处理
model.select("sql)
安装已编译版本 下载MySQldb ,安装已编译版本
goods.py
import web
import MySQLdb
import MySQLdb.cursors
render = web.template.render("templates")
urls = (
'/goods','goods'
)
app = web.application(urls, globals())
class goods:
def GET(self):
conn = MySQLdb.connect(host='127.0.0.1',user='root',passwd='root',db='mshop_dev',port=3306,charset="utf8",cursorclass=MySQLdb.cursors.DictCursor)
cur=conn.cursor()
cur.execute("select * from mshop_goods limit 5")
r=cur.fetchall()
cur.close()
conn.close()
print r
return render.goods(r)
if __name__ == "__main__":
app.run()
goods.html
$def with(r)
<html>
<head>
<meta charset="utf-8" />
<title>goods</title>
<head>
<body>
<h1>商品列表</h1>
<ul>
$for l in r:
<li>$l.get('goods_id'),$l.get('goods_name')=>$l.get('store_name')<li>
</ul>
</body>
</html>
（3）URL跳转
web.seeother("/")
import web
import MySQLdb
import MySQLdb.cursors
render = web.template.render("templates")
urls = (
'/index','index',
'/goods','goods',
'/(.*)', 'hello'
)
app = web.application(urls, globals())
class index:
def GET(self):
return web.seeother("/goods")
class goods:
def GET(self):
conn = MySQLdb.connect(host='127.0.0.1',user='root',passwd='root',db='mshop_dev',port=3306,charset="utf8",cursorclass=MySQLdb.cursors.DictCursor)
cur=conn.cursor()
cur.execute("select * from mshop_goods limit 5")
r=cur.fetchall()
cur.close()
conn.close()
print r
return render.goods(r)
class hello:
def GET(self, name):
return web.seeother("http://baidu.com")
if __name__ == "__main__":
app.run()
输入http://127.0.0.1/index跳转到http://127.0.0.1:8080/goods
输入http://127.0.0.1/hello跳转到https://www.baidu.com/
注:
web.py的静态文件必须放在static文件夹下面
web.py并不具备部署网站的能力，因此对于web.py程序只能在本地访问，如果要进行部署必须要使用apache、nginx、lighttped
通过FastCGI结合lighttpd是web.py，通过该方法可以处理百万次的点击