www.pxcodes.com python教程欄目介紹爬取Json數據實例

rKY少兒編程網-Scratch_Python_教程_免費兒童編程學習平臺

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本文中以爬取其中的AI流轉率數據為例。rKY少兒編程網-Scratch_Python_教程_免費兒童編程學習平臺

該地址返回的響應內容為Json類型，其中紅框標記的項即為AI流轉率值：rKY少兒編程網-Scratch_Python_教程_免費兒童編程學習平臺

rKY少兒編程網-Scratch_Python_教程_免費兒童編程學習平臺

實現代碼如下：rKY少兒編程網-Scratch_Python_教程_免費兒童編程學習平臺

import requests import json import csv # 爬蟲地址 url = 'https://databank.yushanfang.com/api/ecapi?path=/databank/crowdFullLink/flowInfo&fromCrowdId=3312&beginTheDate=201810{}&endTheDate=201810{}&toCrowdIdList[0]=3312&toCrowdIdList[1]=3313&toCrowdIdList[2]=3314&toCrowdIdList[3]=3315' # 攜帶cookie進行訪問 headers = { 'Host':'databank.yushanfang.com', 'Referer':'https://databank.yushanfang.com/', 'Connection':'keep-alive', 'User-Agent':'Mozilla/5.0 (Windows NT 10.0; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/63.0.3239.84 Safari/537.36', 'Cookie':'_tb_token_=iNkDeJLdM3MgvKjhsfdW; bs_n_lang=zh_CN; cna=aaj1EViI7x0CATo9kTKvjzgS; ck2=072de851f1c02d5c7bac555f64c5c66d; c_token=c74594b486f8de731e2608cb9526a3f2; an=5YWo5qOJ5pe25Luj5a6Y5pa55peX6Iiw5bqXOnpmeA%3D%3D; lg=true; sg="=19"; lvc=sAhojs49PcqHQQ%3D%3D; isg=BPT0Md7dE_ic5Ie3Oa85RxaMxbLK3UqJMMiN6o5VjH8C-ZRDtt7aRXb3fXGEAVAP', } rows = [] for n in range(20, 31): row = [] row.append(n) for m in range (21, 32): if m < n + 1: row.append("") else: # 格式化請求地址，更換請求參數 reqUrl = url.format(n, m) # 打印本次請求地址 print(url) # 發送請求，獲取響應結果 response = requests.get(url=reqUrl, headers=headers, verify=False) text = response.text # 打印本次請求響應內容 print(text) # 將響應內容轉換為Json對象 jsonobj = json.loads(text) # 從Json對象獲取想要的內容 toCntPercent = jsonobj['data']['interCrowdInfo'][1]['toCntPercent'] # 生成行數據 row.append(str(toCntPercent)+"%") # 保存行數據 rows.append(row) # 生成Excel表頭 header = ['AI流轉率', '21', '22', '23', '24', '25', '26', '27', '28', '29', '30', '31'] # 將表頭數據和爬蟲數據導出到Excel文件 with open('D:\res\pachong\tmall.csv', 'w', encoding='gb18030') as f : f_csv = csv.writer(f) f_csv.writerow(header) f_csv.writerows(rows)import csv import json import ssl import urllib.request # 爬蟲地址 url = 'https://databank.yushanfang.com/api/ecapi?path=/databank/crowdFullLink/flowInfo&fromCrowdId=3312&beginTheDate=201810{}&endTheDate=201810{}&toCrowdIdList[0]=3312&toCrowdIdList[1]=3313&toCrowdIdList[2]=3314&toCrowdIdList[3]=3315' # 不校驗證書 ssl._create_default_https_context = ssl._create_unverified_context # 攜帶cookie進行訪問 headers = { 'Host':'databank.yushanfang.com', 'Referer':'https://databank.yushanfang.com/', 'Connection':'keep-alive', 'User-Agent':'Mozilla/5.0 (Windows NT 10.0; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/63.0.3239.84 Safari/537.36', 'Cookie':'_tb_token_=iNkDeJLdM3MgvKjhsfdW; bs_n_lang=zh_CN; cna=aaj1EViI7x0CATo9kTKvjzgS; ck2=072de851f1c02d5c7bac555f64c5c66d; c_token=c74594b486f8de731e2608cb9526a3f2; an=5YWo5qOJ5pe25Luj5a6Y5pa55peX6Iiw5bqXOnpmeA%3D%3D; lg=true; sg="=19"; lvc=sAhojs49PcqHQQ%3D%3D; isg=BPT0Md7dE_ic5Ie3Oa85RxaMxbLK3UqJMMiN6o5VjH8C-ZRDtt7aRXb3fXGEAVAP', } rows = [] n = 20 while n <31: row = [] row.append(n) m =21 while m <32: if m < n + 1: row.append("") else: # 格式化請求地址，更換請求參數 reqUrl = url.format(n, m) # 打印本次請求地址 print(reqUrl) # 發送請求，獲取響應結果 request = urllib.request.Request(url=reqUrl, headers=headers) response = urllib.request.urlopen(request) text = response.read().decode('utf8') # 打印本次請求響應內容 print(text) # 將響應內容轉換為Json對象 jsonobj = json.loads(text) # 從Json對象獲取想要的內容 toCntPercent = jsonobj['data']['interCrowdInfo'][1]['toCntPercent'] # 生成行數據 row.append(str(toCntPercent) + "%") m = m+1 rows.append(row) n = n+1 # 生成Excel表頭 header = ['AI流轉率', '21', '22', '23', '24', '25', '26', '27', '28', '29', '30', '31'] # 將表頭數據和爬蟲數據導出到Excel文件 with open('D:\res\pachong\tmall.csv', 'w', encoding='gb18030') as f : f_csv = csv.writer(f) f_csv.writerow(header) f_csv.writerows(rows)

導出內容如下：rKY少兒編程網-Scratch_Python_教程_免費兒童編程學習平臺

rKY少兒編程網-Scratch_Python_教程_免費兒童編程學習平臺

到此這篇關于使用Python爬取Json數據的文章就介紹到這了。rKY少兒編程網-Scratch_Python_教程_免費兒童編程學習平臺

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rKY少兒編程網-Scratch_Python_教程_免費兒童編程學習平臺

以上就是Python爬取Json數據的示例的詳細內容，更多請關注少兒編程網其它相關文章！rKY少兒編程網-Scratch_Python_教程_免費兒童編程學習平臺