[python]pyramid 学习4 (views)
Defining a View Callable as a Functionfrom pyramid.response import Response
def hello_world(request):
return Response('Hello world!')
Defining a View Callable as a Class
from pyramid.response import Response
class MyView(object):
def __init__(self, request):
self.request = request
def __call__(self):
return Response('hello')
HTTP异常 (pyramid.httpexceptions)
抛出401的第一种方法
from pyramid.httpexceptions import HTTPUnauthorized
def aview(request):
raise HTTPUnauthorized()
抛出401的第二种方法
from pyramid.httpexceptions import exception_response
def aview(request):
raise exception_response(401)
403
pyramid.httpexceptions.HTTPForbidden.
404
pyramid.httpexceptions.HTTPNotFound
自定义异常
class ValidationFailure(Exception):
def __init__(self, msg):
self.msg = msg
from pyramid.view import view_config
from helloworld.exceptions import ValidationFailure
@view_config(context=ValidationFailure)
def failed_validation(exc, request):
response =Response('Failed validation: %s' % exc.msg)
response.status_int = 500
return response
header重定向
from pyramid.httpexceptions import HTTPFound
def myview(request):
return HTTPFound(location='http://example.com')
获取POST数据
def myview(request):
firstname = request.params['firstname']
lastname = request.params['lastname']
def myview(request):
# the .decode('utf-8') will break below if there are any high-order
# characters in the firstname or lastname
firstname = request.params['firstname'].decode('utf-8')
lastname = request.params['lastname'].decode('utf-8')
复习一下 route中获取数据(GET)
request.matchdict['xxxx']
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