Python Requests入门实践

最新推荐文章于 2024-01-06 11:58:32 发布

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本文介绍了一次使用Python爬取公司OA系统通讯录的实际操作过程。通过分析OA系统的MSSaction URL，利用requests库进行POST请求，并解决会话过期问题，成功获取并解析通讯录数据。

这几天查询了下Python3 的语法和一些类库，刚好也发现了公司oa通讯录一些隐藏的后门0.0

于是果断拿起来当练手项目了

首先先用开发者工具F12爬到OA 网站 MSS action的URL地址

url = 'http://mss.xxxx.com/lbsp/BaseAction.action'

获取headers

headers = {"Content-Type": "application/json;charset=utf-8",
	'User-Agent': 'Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:22.0) Gecko/20100101 Firefox/22.0',
	'Server':'Apache-Coyote/1.1',
	'Transfer-Encoding':'chunked'}

获取Post Data

data = {'type':'contactsInfo','act':'getSearchUser','dounid':'%25E7%258E%258B%25E5%25AE%259D%25E5%25A9%25B7'}

发起post请求

test=requests.post(url,data=data,cookies = cookies,headers = headers)
	print (test.text)
	jsonStr = test.text

 唔...结果返回值却不如意：
{"exceptionMsg":"会话对象为空，可能为会话已经过期！","exceptionType":"01"}
会话对象为空，可能为会话已经过期！

根据提示，可能是cookies没加入
测试了下网页模拟post请求添加cookie 发现需要带个cookie0.0

cookies={}#初始化cookies字典变量  
info_cookies ='JSESSIONID=4675FE422A936A3C1BEDCEA97D3E5945; usergoodsUnid=8214275298AE1C0A0D319FD5F9E56C1C; ys-lbspuserName=s%3Awdwdfi'
	for line in info_cookies.split(';'):
    		name,value=line.strip().split('=',1)  
    		cookies[name]=value  #为字典cookies添加内容

方法很土0.0 吐槽也就认了，添加cookie，返回 json 串

test=requests.post(url,data=data,cookies = cookies,headers = headers)

{"user_unid":"3F07A2EE9A85C990CDE8E1C8577813CE","user_sort":"","postname":"软件工程师","user_display_name":"王X琪","user_contact_tel":"151XXXXXX66","user_office_tel":"15XXXXX366","user_ext_num":"","user_mail":"whuaiqi@XXXwell.com","user_personphoto":"uploadPhoto/userphoto/3F07A2EE9A85C990CDE8E1C8577813CE.jpg","user_dept_sort":""}

jsonStr = test.text
ok,解析json 串

data = json.loads(jsonStr)

if 'exceptionMsg' in data:
		print (data.get('exceptionMsg'))
		return False
	for  i in range(0,len(data)):
	#{"user_unid":"37F03B0F7A5C7492069C6D9A22A61E36",
	# "user_sort":"1","postname":"集团董事长兼集团总裁",
	# "user_display_name":"吴雄",
	# "user_contact_tel":"13*****7666",
	# "user_office_tel":"0*****66",
	# "user_ext_num":"8866",
	# "user_mail":"w**@l***ell.com",
	# "user_personphoto":"uploadPhoto/userphoto/37F03B0F7A5C7492069C6D9A22A61E36_11.jpg",
	# "user_dept_sort":"1"}	
		if len(data[i]['user_personphoto'])>=1:
			down_img(data[i]['user_personphoto'],data[i]['user_display_name'],data[i]['user_unid'])
			# print ('http://mss.linewell.com/lbsp/'+data[i]['user_personphoto'])
		else:
			pass

嗯，加个错误json 验证

对对对，你看的没错，我只是为了爬个通讯录.jpg