wsgi服务器
DRP原则：Don't repeat yourself
1、wsgi接口：全称 Web Server Gateway Interface （web服务器网关接口）
请求：request
响应：response
#author: wylkjj
#date:2019/6/6
from wsgiref.simple_server import make_server
def application(environ,start_response):
#通过environ封装成一个所有请求信息的对象
start_response('200 OK',[('Content-Type','text/html')])
return [b'<h1>Hellow,Web!</h1>']
#封装socket对象以及准备过程（socket，bind，listen）
httpd = make_server('',8080,application)
print('Serving HTTP on port 8000...')
#开始监听请求:
httpd.serve_forever()
页面跳转的流程
#author: wylkjj
#date:2019/6/8
from wsgiref.simple_server import make_server
def application(environ,start_response):
#ptint('environ',environ["PATH_INFO"])
start_response('200 OK', [('Content-Type', 'text/html')])
path=environ["PATH_INFO"]
if path=='/book':
return [b'<h1>hello book!</h1>']
elif path=='/web':
return [b'<h1>hello wed!</h1>']
else:
return ["<h1>404</h1>".encode("utf8")]
return [b'<h1>hello world!</h1>']
httpd=make_server('',8080,application)
print('Serving HTTP on port 8000...')
httpd.serve_forever()
最简版：
#author: wylkjj
#date:2019/6/8
from wsgiref.simple_server import make_server
def f1(request):
return [b'<h1>hello book!</h1>']
def f2(request):
return [b'<h1>hello wed!</h1>']
def routers():
urlpatterns=(
('/book',f1),
('/web',f2),
)
return urlpatterns
def application(environ,start_response):
#ptint('environ',environ["PATH_INFO"])
start_response('200 OK', [('Content-Type', 'text/html')])
path=environ["PATH_INFO"]
urlpatterns = routers()
func=None
for item in urlpatterns:
if item[0] == path:
func=item[1]
break
if func:
return func(environ)
else:
return ["<h1>404</h1>".encode("utf8")]
# if path=='/book':
# return f1(environ)
# elif path=='/web':
# return f2(environ)
# else:
# return ["<h1>404</h1>".encode("utf8")]
return [b'<h1>hello world!</h1>']
httpd=make_server('',8080,application)
print('Serving HTTP on port 8000...')
httpd.serve_forever()
2、动态显示时间：
.py:
#author: wylkjj
#date:2019/6/8
from wsgiref.simple_server import make_server
import time
def current_time(request):
# 模板
cur_time = time.ctime(time.time())
f = open("current_time.html", "rb")
data = f.read()
data = str(data, "utf8").replace("!cur_time!", str(cur_time))
return [data.encode("utf8")]
def routers():
urlpatterns=(
("/current_time",current_time),
)
return urlpatterns
def application(environ,start_response):
start_response('200 OK', [('Content-Type', 'text/html')])
path=environ["PATH_INFO"]
urlpatterns = routers()
func=None
for item in urlpatterns:
if item[0] == path:
func=item[1]
break
if func:
return func(environ)
else:
return ["<h1>404</h1>".encode("utf8")]
return [b'<h1>hello world!</h1>']
httpd=make_server('',8080,application)
print('Serving HTTP on port 8000...')
httpd.serve_forever()
html:
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Title</title>
</head>
<body>
<h1>current_time: !cur_time! </h1>
</body>
</html>
