我爬取的是Python相關職位,先po上代碼,(PS:本人小白,這是跟着B站教學視頻學習后,老師留的作業,因為騰訊招聘的網站變動比較大,老師的代碼已經無法運行,所以po上),一些想法和過程在后面。
1 from lxml import etree 2 import requests 3 4 HEADERS = { 5 'User-Agent': 'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/78.0.3904.108 Safari/537.36.36', 6 'Cookie': '__ga=GA1.2.212176558.1568885824; pgv_pvi=2298593280; _gcl_au=1.1.1370638257.1568885828; loading=agree', 7 'Referer': 'https://careers.tencent.com/search.html?keyword=python', 8 'Authority': 'careers.tencent.com', 9 "Dnt": "1" 10 } 11 12 13 #通過傳入的indexNum獲取Dict 14 def GetJsonByIndexUrl(indexNum): 15 base_url = "https://careers.tencent.com/tencentcareer/api/post/Query?timestamp=1575374831812&countryId=&cityId" \ 16 "=&bgIds=&productId=&categoryId=&parentCategoryId=&attrId=&keyword=python&pageIndex={" \ 17 "}&pageSize=10&language=zh-cn&area=cn" 18 url = base_url.format(indexNum) # 傳入indexNum的值,構造出完整的indexURL 19 response = requests.get(url, headers=HEADERS) 20 postDict = response.json() 21 return postDict 22 23 #通過獲取的Dict取得每個職位的Id 24 def GetPostIdByDict(postDict): 25 postIds = [] 26 data = postDict["Data"] 27 posts = data["Posts"] 28 for post in posts: 29 postId = post["PostId"] 30 postIds.append(postId) 31 return postIds 32 33 #取得Id后,再獲取職位詳情內容 34 # post_url="https://careers.tencent.com/jobdesc.html?postId="這是詳情頁面,但是數據也是在json里面,所以直接獲取json內容, 35 # 也就是下面的detail_url 36 def GetDetailByPostId(postIds): 37 detail_url = "https://careers.tencent.com/tencentcareer/api/post/ByPostId?timestamp=1575389747280&postId={}&language=zh-cn" 38 for id in postIds: 39 detail_url_byId = detail_url.format(id) 40 rsp = requests.get(detail_url_byId) 41 detailData = rsp.json() 42 print(detailData["Data"]) 43 44 45 if __name__ == '__main__': 46 for x in range(1, 11): # 獲取前10頁的信息 47 mydict = GetJsonByIndexUrl(x) 48 postIds = GetPostIdByDict(mydict) 49 print("第", x, "頁", "*" * 20) 50 GetDetailByPostId(postIds) 51 print("*" * 20)
一些想法和過程:
①一開始做的時候,發現職位的List不在當前頁面,所以爬取這個無法獲取信息,於是查看NetWork發現一個路徑才是列表信息,
我命名為base_url,通過requests.get可以獲得此List中的postId。
②點開一個職位的詳情頁面,發現其實詳情內容也不在當前頁面,內容又是一個新的路徑,我命名為detail_url,通過requests.get,
其實就可以獲得想得到的信息了。