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Python27\Lib\site-packages
(2) 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
hello
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 webrender = 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
$def with(name)hello1 hello1,$name
（2）结果数据处理
model.select("sql)
安装已编译版本 ,安装已编译版本
goods.py
import webimport MySQLdbimport MySQLdb.cursorsrender = 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)goods 商品列表
- $for l in r:
- $l.get('goods_id'),$l.get('goods_name')=>$l.get('store_name')
（3）URL跳转
web.seeother("/")
import webimport MySQLdbimport MySQLdb.cursorsrender = 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