1. Create a view
Go to the second mysite directory. Create a new view. py file.
The Code is as follows:
From Django. Http import httpresponse
Def Hello (request ):
Return httpresponse ('Hello World ')
You can see that the View File introduces the module HTTP from Django and imports the httpresponse function. A Hello function in the view. The reutrn httpresponse can be interpreted as response. Write in C.
2. Create a route
Match the view from the route using the address of the browser.
Configure the route in the URLs. py file.
From Django. conf. URLs import patterns, include, URL
From mysite. Views import *
Urlpatterns = patterns ('',
(R' ^ Hello/', hello ),
# Examples:
# URL (R' ^ $ ', 'mysite. Views. home', name = 'home '),
# URL (R' ^ mysite/', include ('mysite. Foo. urls ')),
# Uncomment the admin/DOC line below to enable admin documentation:
# URL (R' ^ admin/doc/', include ('django. contrib. admindocs. urls ')),
# Uncomment the next line to enable the admin:
# URL (R' ^ admin/', include (Admin. Site. URLs )),
)
The red lines on the second line above are the routes configured for the hellp view. (R' ^ Hello/', hello), R indicates ignoring escape characters, which is similar to @ in C. The red part indicates the address of the browser, which is supported by regular expressions. Use a regular expression to match the browser address. Then, if the matching address is successful, route the request from this address to the view in the blue section. That is, if the browser accesses hello, it will match the hello view. Note that the hello function in views. py is used, so the views. py module must be loaded first. That is, the first line in the Code is red.
3. access in the browser
Enter http: // 127.0.0.1: 8000/hello in the browser
The word "Hello world" is displayed.
4. Return the server time page
Same as above. Try to access time from a browser. There must be a Time Matching regular, namely (R' ^ time/$ ', current_datetime), in red. After Entering time in the browser, you should be able to find the matched route. If this route is found, a view should be called. You can name the view name as needed. The view name here is current_datetime. Now that the route is available, define the current_datetime view.
Open views. py. Create a function
Def current_datetime (request ):
Now = datetime. datetime. Now ()
Html = "<thml> <body> it is now % S. </body>
Return httpresponse (HTML)
Before using it, you must first import datetime.
Import datetime
Then, the access address in the browser is http: // 127.0.0.1: 8000/time/
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