Python——Web.py詳解

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ubuntu安裝Web.py

sudo pip install web.py

測試代碼：

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()

类似于flask模板，这里也可以使用文件读写返回html内容：

import web urls = (
'/(.*)','hello'
)
app = web.application(urls,globals()) class hello:
def GET(self,name):
return open(r'index.html','r').read() if __name__=='__main__':
app.run()

URL映射：

完全匹配： /index

模糊匹配 /post/\d+

带组匹配 /post/(\d+)

import web urls = (
'/blog/\d+','blog',
'/index','index',
'/(.*)','hello',
)
app = web.application(urls,globals()) class index:
def GET(self):
return 'index' class blog:
def GET(self):
return 'blog' class hello:
def GET(self,name):
return 'hello' if __name__=='__main__':
app.run()

请求处理：

请求参数获取： web.input()

hello.html源码：

<!DOCTYPE html>
<html lang="en"> <head>
<meta charset="UTF-8">
<title>User Login</title>
</head> <body>
<div>
<h6>User Login</h6>
</div>
<form action="/blog/123" method="POST">
<h6>用戶名：</h6>
<input type="text" name="username"><br>
<h6>密碼：</h6>
<input type="password" name="password"><br>
<input type="submit" name="submit"><br>
</form>
</body>
</html>

app.py源码：

import web urls = (
'/blog/\d+','blog',
'/index','index',
'/(.*)','hello',
)
app = web.application(urls,globals()) class index:
def GET(self):
r = web.input()
return r class blog:
def POST(self):
r = web.input()
return r class hello:
def GET(self,name):
return open(r'hello.html','r').read() if __name__=='__main__':
app.run()

运行结果：

请求头获取： web.ctx.env

app.py代码如下，hello.html代码如上相同

import web urls = (
'/blog/\d+','blog',
'/index','index',
'/(.*)','hello',
)
app = web.application(urls,globals()) class index:
def GET(self):
return web.ctx.env class blog:
def POST(self):
r = web.input()
return r class hello:
def GET(self,name):
return open(r'hello.html','r').read() if __name__=='__main__':
app.run()

运行结果：响应处理：

模板文件读取：render.index("参数")

在py文件同目录下要创建templates文件夹，存放模板。

index是指定模板的名称，参数是html中是所需参数。

import web render = web.template.render("templates") urls = (
'/blog/\d+','blog',
'/index','index',
'/(.*)','hello',
)
app = web.application(urls,globals()) class hello:
def GET(self,name):
return render.hello() if __name__=='__main__':
app.run()

采用模板就可以不用之前所用的open(r'hello.html','r').read()了。

结果数据获取：model.select("sql")

参考我之前的文章http://www.cnblogs.com/LexMoon/p/Flask_6.html

URL跳转：web.seeother("/")

import web urls = (
'/(.*)','hello',
)
app = web.application(urls,globals()) class hello:
def GET(self,name):
return web.seeother('http://www.cnblogs.com/LexMoon/') if __name__=='__main__':
app.run()