使用Python从网页获取数据

想要使用Python从特定网站获取数据以上传到Google App Engine。这个想法是创建一个数据库数据来存储服务器上的信息，以检索并显示在Web应用程序中。使用Python从网页获取数据

from google.appengine.ext import webapp 
    from google.appengine.ext.webapp.util import run_wsgi_app 
    from google.appengine.ext import db 
    import os 
    import datetime 
    from google.appengine.ext.webapp import template 


# A class which creates all the pokemon on the server 
class Pokemondata(db.Model): 
number = db.IntegerProperty() 
pokemonname = db.StringProperty() 
description = db.StringProperty() 

newpoke = Pokemondata(number="001",pokemonname="Balbasuar",description="The grass  pokemon") 
newpoke = Pokemondata(number="002",pokemonname="Ivysaur",description="The seed pokemon") 
newpoke = Pokemondata(number="003",pokemonname="Venasaur",description="Another grass pokemon") 
newpoke.put() 

    # A class to put new pokemon in to the server ? 
class ApplyHandler(webapp.RequestHandler): 
    def post(self): 
    self.session = Session() 
    pnumber = self.request.get('number') 
    pname = self.request.get('pokemonname') 
    pdescription = self.request.get('description') 

    newpoke = Pokemondata(number=pnumber,pokemonname=pname,description=pdescription) 
newpoke.put() 
    self.session['pokemon'] = pname 
    doRender(self,"board.htm",{}) 

    # Construct a google table for this data 
    # to display 
    class JSONInterface(webapp.RequestHandler): 
    def get(self): 
     que = db.Query(Pokemondata) 
     listing = que.fetch(limit = 12) 
     doRender(self,'http://pokedexapp.appspot.com/[email protected]#input', 
     {'listing':listing}) 


    application = webapp.WSGIApplication([('/(.*html)?', ApplyHandler), 
    ('/json', JSONInterface)], debug=True) 


    def main(): 
    run_wsgi_app(application) 
    if __name__ == "__main__": 
     main()

当我部署应用程序来测试我得到服务器错误。任何人都可以告诉我这是否是正确方向的一步，需要修改哪些内容？

YAML的文件是目前

应用：pokedexapp 版本：1 运行：蟒蛇 API_VERSION：1

处理程序： - 网址：/.* 脚本：main.py

来源

2013-05-03 user2045126

我明白代码缩进是错误的。我目前正在尝试修复它 – user2045126 2013-05-03 02:55:06

你想发布你得到的错误。 – dragonx 2013-05-03 03:35:57

你可以发布.yaml文件吗？我在这里看到一些错误，在处理程序中使用的MainHandler，JSONInterface，SearchResult类在哪里？ – marcadian 2013-05-03 05:27:52

from google.appengine.ext import db 
from google.appengine.ext import webapp 
from google.appengine.ext.webapp import template 
# A class which creates all the pokemon on the server 
class Pokemondata(db.Model): 
number = db.IntegerProperty() 
pokemonname = db.StringProperty() 
description = db.StringProperty() 


def post(self): 
self.session = Session() 
pnumber = self.request.get('number') 
pname = self.request.get('pokemonname') 
pdescription = self.request.get('description') 


newpoke = Pokemondata(number=pnumber,pokemonname=pname,description=pdescription) 
newpoke.put() 
self.session['pokemon'] = pname 
doRender(self,"board.htm",{}) 


Page = """ 
<html manifest="my.manifest"> 
<head> 
     <!-- All the js and css header links go here --> 
</head> 
<body> 
     <!-- all the needed HTML markup --> 

     <!-- if there is a place you would need to embed values (e.g. a user name), just use %s in its place, e.g. --> 
<h1>%s's App Engine App</h> 
     <!-- you can now do a string substitution for the each %s (in order) - see end… 
</body> 
</html> 
    """  


# A class to get/put pokemon in to the server ? 
class ApplyHandler(webapp.RequestHandler): 
    def post(self): 
     self.session = Session() 
    pnumber = self.request.get('number') 
    pname = self.request.get('pokemonname') 
    pdescription = self.request.get('description') 

    newpoke = Pokemondata(number=pnumber,pokemonname=pname,description=pdescription) 
    newpoke.put() 
    self.session['pokemon'] = pname 
    doRender(self,"board.htm",{}) 

# Construct a google big ass table for this data 
# to display 

    def get(self): 
     que = db.Query(Pokemondata) 
    listing = que.fetch(limit = 12) 
    doRender(self,'http://pokedexapp.appspot.com/[email protected]#input', 
      {'listing':listing})  

    #self.response.out.write(page % "Fred Bloggs") 
    # This is standard Google App Engine stuff - create a WSGI application 
    # framework and set up the routing between URIs and Handlers... 
application = webapp.WSGIApplication([('/', Pokemondata), 
             ('/json', JSONInterface)], debug=True) 
def Addlist(): 
    run_wsgi_app(application) 

if __name__ == "__Addlist__": 
    main() 
    code here

来源

2013-05-03 17:55:46 user2336427

我试过使用该示例，但我仍然收到错误。 – user2045126 2013-05-03 18:12:24

这个例子应该做什么？ – FDinoff 2013-05-03 18:13:30

该示例应该获取代码中创建的数据并将其发布到服务器... Html已被排除用于格式化输出，但它只是显示数据库条目的结果 – user2336427 2013-05-03 18:48:19

from google.appengine.ext import db 

# A class which creates all the pokemon on the server 
class Pokemondata(db.Model): 
pokemonname = db.StringProperty() 

newpoke = Pokemondata(pokemonname="Balbasuar") 
newpoke.put() 

class JSONInterface(webapp.RequestHandler): 
    def post(self): 
     pkmname = self.request.get('pokemonname') 
     callback = self.request.get('callback') 
     # This line makes the Message object... 
     pkmname = Pokemondata(pokemonname=pkmname) 
     # This one pushes it to the database (a Big-Table)... 
     pkmname.put() 
     self.response.out.write(getJSONMessages(callback)) 

    def get(self): 
     callback = self.request.get('callback') 
     self.response.out.write(getJSONMessages(callback))

来源

2013-05-04 15:37:45 user2336427

from google.appengine.ext import db 
from google.appengine.ext import webapp 
from google.appengine.ext.webapp.util import run_wsgi_app 
from google.appengine.ext import db 
import os 
import datetime 
from google.appengine.ext.webapp import template 

# A class which creates all the pokemon on the server 
class Pokemondata(db.Model): 
    def get(self): 
     pokemonname = db.StringProperty() 
     newpoke = Pokemondata(pokemonname="Balbasuar") 
     newpoke.put() 

class JSONInterface(webapp.RequestHandler): 

    def post(self): 
     pkmname = self.request.get('pokemonname') 
     callback = self.request.get('callback') 
     # This line makes the Message object... 
     pkmname = Pokemondata(pokemonname=pkmname) 
     # This one pushes it to the database (a Big-Table)... 
     pkmname.put() 
     self.response.out.write(getJSONMessages(callback)) 

    def get(self): 
     callback = self.request.get('callback') 
     self.response.out.write(getJSONMessages(callback))

来源

2013-05-04 15:49:32 user2336427

使用Python从网页获取数据

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