一、2 基於wsgiref定義自己的web框架
阿新 • • 發佈：2018-11-29
目錄結構：除了templates目錄下的html檔案，其他檔案都是屬於平行關係
C:.
│ index.html
│ url.py
│ views.py
│ wsgirefServer.py
├───templates
│ index.html
│ test.html
│ time.html
│ user.html
wsgirefServer.py
# make_server ： 類似下面的程式碼，把這些封裝好以後，成了 make_server
# import socket
# server=socket.socket()
# server.bind(('127.0.0.1',8001))
# server.listen(5)
# while True:
# conn,client_address=server.accept()
# data=conn.recv(1024)
from wsgiref.simple_server import make_server
# from url import urls
# from views import error
# env ：已經把下面這些封裝好以後，把類似my_diango.py 中的'/index' 路徑 從env中取出來即可，這個env 既是字典，也是對像。（把請求頭切分好以後，放進字典裡面）
# data = conn.recv(1024)
# conn.send(b'HTTP/1.1 200 OK\r\nContent-Type:text/html\r\n\r\n')
from url import urls
from views import error
def run(env, response):
print(env)
response("200 ok", [('Content-type', 'text/html')])
position = env['PATH_INFO']
func = None
for url in urls:
if position == url[0]:
func = url[1]
break
if func:
response = func(env)
else:
response = error(env)
return [response.encode('utf-8'), ]
if __name__ == '__main__':
server = make_server('127.0.0.1', 8003, run) # run 相當於一個裝飾器，在run函式之前做了件事，執行run 後，又在run函式之前做了件事，固定用法
server.serve_forever()url.py
from views import *
urls = [
('/index', index),
('/time', time),
('/test', test),
('/user', user),
]
views.py
import datetime
from jinja2 import Template
import pymysql
def index(env):
with open('templates/index.html', 'r') as f:
data = f.read()
return data
def time(env):
ctime = datetime.datetime.now().strftime('%Y-%m-%d %X')
with open('templates/time.html', 'r') as f:
data = f.read()
data = data.replace('@@
index.html
<!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <title>index</title> </head> <body> <h1>h1</h1> <h2>h2</h2> <img src="http://img4.imgtn.bdimg.com/it/u=1565006133,780611353&fm=26&gp=0.jpg"> </body> </html>
templates目錄下的html檔案
index.html
<!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <title>index</title> </head> <body> <h1>h1</h1> <h2>h2</h2> <img src="http://img4.imgtn.bdimg.com/it/u=1565006133,780611353&fm=26&gp=0.jpg"> </body> </html>
test.html
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>test</title>
</head>
<body>
{{user.name}}
{{user.age}}
</body>
</html>
time.html
<!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <title>time</title> </head> <body> @@[email protected]@ </body> </html>
user.html
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Title</title>
</head>
<body>
<table border="1">
<thead>
<tr>
<th>id</th>
<th>name</th>
<th>password</th>
</tr>
</thead>
<tbody>
{% for user in user_list%}
<tr>
<td>{{user.id}}</td>
<td>{{user.name}}</td>
<td>{{user.password}}</td>
</tr>
{% endfor %}
</tbody>
</table>
</body>
</html>