我希望能够在发送一个请求后从服务器接收多个响应。这是全部扭曲的。 服务器:
class HandleReq(resource.Resource):
def __init__(self):
resource.Resource.__init__(self)
def render_GET(self, request):
"""
Here I basically connect to another server and get multiple
responses"""
d = defer.Deferred()
interface = RemoteService(request, i_deferred)
self._connect_to_RemoteService(bf_command, interface)
self.handleCallbacks(i_deferred, request)
return server.NOT_DONE_YET
def render_POST(self, request):
'''to make sure both GET/POST are handled'''
return self.render_GET(request)
def handleCallbacks(self, d, req):
msg = d.addCallback(self.getEvent)
d.addCallback(self.postResponse(req, msg))
return None
def getEvent(self, msg):
return msg
def postResponse(self, request, response):
def post(event):
request.setHeader('Content-Type', 'application/json')
request.write(response)
request.finish()
self.postResponse(request, response)
return server.NOT_DONE_YET
return post
客户:
from urllib2 import URLError, HTTPError
api_req = 'http://localhost:8000/req' + '?' + urllib.urlencode({"request": request})
req = urllib2.Request(api_req)
try:
response = urllib2.urlopen(api_req)
except HTTPError, e:
print 'Problem with the request'
print 'Error code: ', e.code
except URLError, e:
print 'Reason: ', e.reason
else:
j_response = json.loads(response.read())
基本上我想要的是服务器不要关闭连接(request.finish()),而是继续发送响应;并且客户端应该能够接收这些消息。
答案 0 :(得分:3)
HTTP不能以这种方式工作。 HTTP请求只有一个响应。 Twisted Web不允许您发送多个响应,因为这将违反HTTP规范,并且没有HTTP客户端能够弄清楚发生了什么。
可能有另一种方法可以实现您的基本目标,但无论如何,它都不会涉及向单个HTTP请求发送多个HTTP响应。