python在DWR框架下的post

使用requests.post，但一直要在headers中设置相应的Content-Type和Referer

# coding=utf-8
import urllib2
import requests

url='http://******/registerService.dwrValidateName.dwr'
postdata={
    "callCount":"1",
        "page":"/website/reg/regstep.htm",
        "httpSessionId":"",
        "scriptSessionId":"3CB34EBAAFDFBEB4EFA7B2052C8392F9622",
        "c0-scriptName":"registerService",
        "c0-methodName":"dwrValidateName",
        "c0-id":"0",
        "c0-param0":"string:admin",
        "batchId":"3"
    }
headers={"Content-Type":"text/plain",
'Referer': 'http://********/regstep.htm'}
html=requests.post(url,data=udata,headers=headers)
print html.text