python爬虫post请求payload参数到底错在哪里


url3 = 'http://wdcs.cnsuning.com/api/lwms/order/query'
headers2 = {'User-Agent':'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/70.0.3538.110 Safari/537.36',
            'Content-Type': 'application/json;charset=UTF-8',
            'Host': 'wdcs.cnsuning.com'
}

data = {
    'historyOrder': 'false',
    'orderNo': 'OMS0023456253890101',
    'type': 'header'
}
jdata = json.dumps(data)

#res3 = session.post(url3,headers=headers2,data=jdata,cookies=cookies)
res3 =requests.post(url=url3, data=json.dumps(data), headers=headers2,cookies=cookies)
print(res3)
dumpJsonData = json.dumps(data)
print(f"dumpJsonData = {dumpJsonData}")

img

img


结果输出

img


一直没有找到错在哪里，请高人指点下

 
import requests  # 导入requests包
url = 'https://www.bqkan.com/3_3026/1343656.html'
strHtml = requests.get(url)  # Get方式获取网页数据
html = strHtml.text
print(html)

看HTML有没有