请教一个tornado编码的问题，如果前端传输的是gbk的编码，会报错

[xueshi]

最近用Tornado搭建的一个小的server，处理前端传回来的url。
但是传回搜狗的结果的时候，因为url中有GBK编码，所以解析出错。
所以，我想问一下有没有什么好的办法，可以处理这样的情况

在搜狗搜索“编码”
http://localhost:8011/?url=http://www.sogou.com/web?query=%B1%E0%C2%EB&_ast=1338597120&_asf=null&w=01029901&p=40040100&dp=1&czgd=0&sut=3584&sst0=1338598003568

#!/usr/bin/env python
# coding=utf-8

import urlparse
import urllib
import tornado.web
import tornado.ioloop
import tornado.options
import tornado.database
import tornado.httpserver
import tornado.autoreload


# ------------ handler code ------------

class BaseHandler(tornado.web.RequestHandler):
    def get(self):        
        url = self.get_argument("url",'')
        print url
        return 0 
    
    def post(self):
        self.write('this post')
        
class HomeHandler(BaseHandler):
    pass


class InfoHandler(BaseHandler):
    def get(self):
	print "infoHnadler"
    pass

# ------------  main code -------------

settings = dict(
    title = u"Simple",
    xsrf_cookies = False,
    autoescape = None,
    login_url = "/login",
    gzip = True,
    debug = True)

handlers = [
        (r"/", HomeHandler),
        (r"/info", InfoHandler)
        ]

def get_application():
    application = tornado.web.Application(handlers,**settings)
    #application.db = get_engine('')  
    return application



def main():
    application = get_application()
    http_server = tornado.httpserver.HTTPServer(application, xheaders = True)
    http_server.bind(8011)
    http_server.start(1)
    loop = tornado.ioloop.IOLoop.instance()
    loop.start()

if __name__ == "__main__":
    total = 0
    main()

会提示下列错误信息

Traceback (most recent call last):
File "c:\Python26\lib\site-packages\tornado-2.2.1-py2.6.egg\tornado\web.py", line 988, in _execute
getattr(self, self.request.method.lower())(*args, **kwargs)
File "e:\simple_tornado.py", line 25, in get
url = self.get_argument("url",'')
File "c:\Python26\lib\site-packages\tornado-2.2.1-py2.6.egg\tornado\web.py", line 295, in get_argument
args = self.get_arguments(name, strip=strip)
File "c:\Python26\lib\site-packages\tornado-2.2.1-py2.6.egg\tornado\web.py", line 311, in get_arguments
v = self.decode_argument(v, name=name)
File "c:\Python26\lib\site-packages\tornado-2.2.1-py2.6.egg\tornado\web.py", line 334, in decode_argument
return _unicode(value)
File "c:\Python26\lib\site-packages\tornado-2.2.1-py2.6.egg\tornado\escape.py", line 174, in to_unicode
return value.decode("utf-8")
File "c:\Python26\lib\encodings\utf_8.py", line 16, in decode
return codecs.utf_8_decode(input, errors, True)
UnicodeDecodeError: 'utf8' codec can't decode byte 0xb1 in position 31: invalid start byte


在网上找了半天了，可能没有好的办法。

tornado又不太熟悉，请问有没有别的办法，可以预先处理一下。

[bugs2k]

字符串编解码：

str.decode('gbk').encode('utf-8')

[bugs2k]

最好用 gb18030 解码：

str.decode('gb18030').encode('utf-8')

[xueshi]

谢谢你的意思是 前端以utf-8编码传回来 而不是在服务器端做处理 对么？