使用CherryPY MethodDispatcher的动态URL

时间:2009-10-17 14:19:26

标签: python rest cherrypy

我需要配置支持以下URL方案的RESTful样式URL:

  • / parent /
  • / parent / 1
  • /父母/ 1 /儿童
  • /父母/ 1 / chidren / 1

我想使用MethodDispatcher,以便上面的每一个都可以有GET / POST / PUT / DELETE函数。我让它为第一个和第二个工作,但无法弄清楚如何配置子部分的调度程序。我有这本书,但它几乎没有涵盖这一点,我在网上找不到任何样本。

以下是我当前配置MethodDispatcher的方法。

root = Root()
conf = {'/' : {'request.dispatch': cherrypy.dispatch.MethodDispatcher()}}    

cherrypy.quickstart(root, '/parent', config=conf)

任何帮助都将不胜感激。

2 个答案:

答案 0 :(得分:9)

http://tools.cherrypy.org/wiki/RestfulDispatch可能就是你要找的东西。

在CherryPy 3.2中(刚刚发布测试版),将会有一个新的_cp_dispatch方法,您可以在对象树中使用它来执行相同的操作,甚至可以更改遍历,有点沿着吉诃德的_q_lookup_q_resolve行。见https://bitbucket.org/cherrypy/cherrypy/wiki/WhatsNewIn32#!dynamic-dispatch-by-controllers

答案 1 :(得分:2)

#!/usr/bin/env python
import cherrypy

class Items(object):
    exposed = True
    def __init__(self):
        pass

    # this line will map the first argument after / to the 'id' parameter
    # for example, a GET request to the url:
    # http://localhost:8000/items/
    # will call GET with id=None
    # and a GET request like this one: http://localhost:8000/items/1
    # will call GET with id=1
    # you can map several arguments using:
    # @cherrypy.propargs('arg1', 'arg2', 'argn')
    # def GET(self, arg1, arg2, argn)
    @cherrypy.popargs('id')
    def GET(self, id=None):
        print "id: ", id
        if not id:
            # return all items
        else:
            # return only the item with id = id

    # HTML5 
    def OPTIONS(self):                                                      
        cherrypy.response.headers['Access-Control-Allow-Credentials'] = True
        cherrypy.response.headers['Access-Control-Allow-Origin'] = cherrypy.request.headers['ORIGIN']
        cherrypy.response.headers['Access-Control-Allow-Methods'] = 'GET, PUT, DELETE'                                     
        cherrypy.response.headers['Access-Control-Allow-Headers'] = cherrypy.request.headers['ACCESS-CONTROL-REQUEST-HEADERS']

class Root(object):
    pass

root = Root()
root.items = Items()

conf = {
    'global': {
        'server.socket_host': '0.0.0.0',
        'server.socket_port': 8000,
    },
    '/': {
        'request.dispatch': cherrypy.dispatch.MethodDispatcher(),
    },
}
cherrypy.quickstart(root, '/', conf)