Python爬取数据保存为Json格式的代码示例

#encoding:'utf-8'import urllib.requestfrom bs4 import BeautifulSoupimport osimport timeimport codecsimport json#找到网址def getDatas():  # 伪装  header={'User-Agent':"Mozilla/5.0 (X11; CrOS i686 2268.111.0) AppleWebKit/536.11 (KHTML, like Gecko) Chrome/20.0.1132.57 Safari/536.11"}  # url="https://movie.douban.com/top250"  url="file:///E:/scrapy/2018-04-27/movie/movie.html"  ret=urllib.request.Request(url=url,headers=header)  # 打开网页  res=urllib.request.urlopen(ret)  # 转化格式  response=BeautifulSoup(res,'html.parser')  # 找到想要数据的父元素  datas=response.find_all('div',{'class':'item'})  # print(datas)  #创建存放数据的文件夹  folder_name="output"  if not os.path.exists(folder_name):      os.mkdir(folder_name)  # 定义文件  current_time=time.strftime('%Y-%m-%d',time.localtime())  file_name="move"+current_time+".json"  # 文件路径  file_path=folder_name+"/"+file_name  for item in datas:    # print(item)    dict1={}    dict1['rank']=item.find('div',{'class':'pic'}).find('em').get_text()    dict1['title']=item.find('div',{'class':'info'}).find('div',{'class':'hd'}).find('a').find('span',{'class':'title'}).get_text()    dict1['picUrl']=item.find('div',{'class':'pic'}).find('a').find('img').get('src')    # print(picUrl)    # 保存数据为json格式    try:      with codecs.open(file_path,'a',encoding="utf-8") as fp:        fp.write(json.dumps(dict1,ensure_ascii=False)+",/n")    except IOError as err:      print('error'+str(err))    finally:      fp.close()  passgetDatas()# 爬取数据