#!C:/Python27/python.exe -u
import tornado
import tornado.websocket
import tornado.wsgi
import tornado.web
import tornado.httpserver
import tornado.tcpserver
import json
from py2neo import neo4j, cypher
graph_db = neo4j.GraphDatabaseService()
class request(tornado.web.RequestHandler):
def sr():
self.set_header('Content-type','application/json')
class ChatWebSocket(tornado.websocket.WebSocketHandler):
clients = []
def open(self):
ChatWebSocket.clients.append(self)
def on_message(self, message):
query = "START a=node:node_auto_index(uid='twitter') CREATE a-[:ch]-(t{con:'"+message+"'}) RETURN a"
data, metadata = cypher.execute(graph_db, query)
for client in ChatWebSocket.clients:
print(client)
t=json.loads(message)
client.write_message('Content-type:application/json\n')
client.write_message(json.dumps({'a':t['b']}))
print(t['b'])
def on_close(self):
ChatWebSocket.clients.remove(self)
tornado_app = tornado.web.Application([
(r'/websocket', ChatWebSocket),
(r'.*', tornado.web.FallbackHandler)
])
tornado_app.listen(5094)
tornado.ioloop.IOLoop.instance().start()
这是我的代码示例,我在获取其实例 b 的消息中接受 json 并再次将 json 发送到客户端。但是客户端将标头视为普通字符串。