Python3.x：访问带参数链接并且获取返回json串

Python3.x：访问带参数链接并且获取返回json串

示例一：

import json
import xml.dom.minidom
from urllib import request, parse
from sqlalchemy import func

url = "http://**********/queryTradingByProdTypeData.do"
headerDict = {'Host': 'query.sse.com.cn',
              'User-Agent': 'Mozilla/5.0 (Windows NT 6.1; Win64; x64; rv:54.0) Gecko/20100101 Firefox/54.0',
              'Accept': '*/*', 'Accept-Language': 'zh-CN,zh;q=0.8,en-US;q=0.5,en;q=0.3',
              'Accept-Encoding': 'gzip, deflate',
              'Referer': 'http://**************/funddata/overview/day/',
              'Connection': 'keep-alive'}
jsonName = 'jsonpCallback24028'
data = {'jsonCallBack': jsonName, 'searchDate': dataDate, 'prodType': 'jj'}
params = parse.urlencode(data).encode('utf-8')
req = request.Request(url, headers=headerDict)
page = str(request.urlopen(req, data=params).read(), encoding="utf-8")

rdata = page[len(jsonName) + 1:len(page) - 1]
jsondata = json.loads(rdata)
print("json>>:%s" %jsondata)

示例二：

# 获取主要指标概览表
def getChannelIdStr(channelFidStr):
    url = "http://www.*****/getSubChannel.action"
    headerDict = {'Host': 'www.*****.cn',
                  'User-Agent': 'Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/61.0.3163.31 Safari/537.36',
                  'Accept': 'application/json, text/javascript, */*; q=0.01',
                  'Accept-Language': 'zh-CN,zh;q=0.8',
                  'Accept-Encoding': 'gzip, deflate',
                  'Referer': 'http://www.******/monthview.action?action=china',
                  'Connection': 'keep-alive'}
    data = {'channelFidStr': channelFidStr}
    # psot 传递参数
    res = requests.post(url, data=data, headers=headerDict)
    # 获取跳转后的页面源码，返回json串
    soup = BeautifulSoup(res.content, "html.parser")
    print(soup)
    # 转换json格式
    jsonArr = json.loads(soup.text)
    # 遍历json数组
    channelId = []
    for jsonStr in jsonArr:
        channelId.append(jsonStr['channelId'])
        print(jsonStr['channelName'])
    return channelId