Flask routing framework

First, the view function routing rules

from flask Import the Flask, redirect, url_for 

# create application objects flask 
# __name__ behalf of the current module name 
# flask to the current directory List, static directory is a static directory, templates directory as a template 
App = the Flask ( __name__ ) 


@ app.route ( " / " )
 DEF index ():
     " "" Custom view function "" " 
    return  " Hello World " 


# by way of access methods defined 
@ app.route ( " / POST " , methods = [ " the POST " ])
 DEF POST () :
     return  "do post" 


@ App.route ( " / Hi1 " ) 
@ app.route ( " / HI2 " )
 DEF hi ():
     return  " hi Page " 

@ app.route ( " / the Login " )
 DEF the Login ():
     # Use url_for function find url path through the name of the view function 
    url = url_for ( " index " )
     return redirect (url) 

IF  __name__ == ' __main__ ' :
     # see all routes 
    Print (App.
    url_map) # start the application
    app.run(debug=True)

Second, the routing parameter extraction with a custom converter

from flask Import the Flask, redirect, url_for
 from werkzeug.routing Import BaseConverter 

# Create a flask application object 
# __name__ behalf of the current module name 
# flask to the current directory List, static directory is a static directory, templates directory as a template 
App = the Flask ( __name__ ) 


# routing switches int, a float, path 
# http://127.0.0.1:5000/goods/12 
@ app.route ( " / Goods / <int: goods_id> " )
 # @ app.route ( "/ Goods / < goods_id> ") may be 
DEF goods_detail (goods_id):
     return  " goods_detail_% S " % STR (goods_id)


# 1, a custom converter 
class RegexConvert (BaseConverter):
     DEF  the __init__ (Self, url_map, REGEX):
         # call the parent class initialization method 
        # Super (RegexConvert, Self) .__ the init __ (url_map) 
        BaseConverter. The __init__ (Self, url_map)
         # the regular expressions stored in the object attribute, the flask will be used to route the regular matching property 
        self.regex = REGEX 


# 2, from the conversion definition added to the flask 
app.url_map.converters [ " Re " ] = RegexConvert 


# 3, using 
@ app.route ( " / Send / <Re (R'1 [34578] \ {D}. 9 '): Mobile> " )
 #http://127.0.0.1:5000/send/18612345678 
DEF send_sms (Mobile):
     return  " Send SMS to% S " % Mobile 

@ app.route ( " / " )
 DEF index (): 
    URL = the url_for ( " send_sms " , Mobile = " 18,612,345,678 " )
     return redirect (url) 


IF  __name__ == ' __main__ ' :
     # see all routes 
    Print (app.url_map)
     # start the application 
    app.run (debug = True)