Pass one parameter in a Tornado HttpGet with several parameters

I want pass one parameter in a Url (to update one of many paramaters contained by my URL) like this:

httpGet.setURI(new URI(url/user?"nickname"="John") 

ServerSide in Python:

class GetInfo(BaseHandler):
  def Get(self):
        nickname = self.get_argument("nickname")
        gender = self.get_argument("gender")
        logging.info(nickname)
        logging.info(gender)

  application = tornado.web.Application([
  (r"/", MainHandler),
  (r"/user", GetInfo),
  ])

The server to开发者_如何学JAVAld me that I can't do this because the parameter "gender" is missing. How can I do?

Thanks

First your URI seems to be wrong.

httpGet.setURI(new URI(url + "/user?nickname=John") 

String url = "http://192.168.1.104";
httpGet.setURI(new URI(url + "/user?nickname=John");

Edit: The answer to this OP is below:

it seems from the example at tornadoweb.org/documentation that you can set a default value. So you can try something like gender = self.get_argument("gender",None) . So gender should be set to None if you dont pass any gender parameter in the query string