class tvSpider(scrapy.Spider):
name ='mangguo_tv'
allowed_domain = []
def __init__(self,*args,**kwargs):
super(tvSpider,self).__init__(*args,**kwargs)
self.now = time.time()
self.config = []
self.Index_Url = ""
def start_requests(self):
with open('config.json','r') as f:
data = json.load(f)
for i in data.iteritems():
if i[0].encode('utf-8') == self.name:
self.config.append(i)
f.close()
for v in self.config:
if len(v[1]) == 2:
self.Index_Url = v[1][0]['Index_Url']
Is_Json = v[1][0]['Is_Json']
Max_Page = v[1][0]['Max_Page']
Final_Xpath = v[1][1]['Final_Xpath']
if Is_Json == 1:
for url in self.Index_Url:
request = Request(url,self.parse_json)
request.meta['Index_Url'] = url
request.meta['Max_Page'] = Max_Page
request.meta['Final_Xpath'] = Final_Xpath
yield request
else:
for url in self.Index_Url:
request = Request(url,self.parse_splash,meta={
'splash':{
'endpoint':'render.html',
'args':{
'wait':0.5,
'images':0,
'render_all':1
}
}
})
request.meta['Index_Url'] = url
request.meta['Max_Page'] = Max_Page
request.meta['Final_Xpath'] = Final_Xpath
yield request
if len(v[1]) == 3:
self.Index_Url = v[1][0]['Index_Url']
Is_Json = v[1][0]['Is_Json']
Max_Page = v[1][0]['Max_Page']
All_Detail_Page = v[1][1]['All_Detail_Page']
Final_Xpath = v[1][2]['Final_Xpath']
if Is_Json == 1:
for url in self.Index_Url:
request = Request(url,self.parse_json)
request.meta['Index_Url'] = url
request.meta['Max_Page'] = Max_Page
request.meta['All_Detail_Page'] = All_Detail_Page
request.meta['Final_Xpath'] = Final_Xpath
yield request
else:
for url in self.Index_Url:
request = Request(url,self.parse_splash,meta={
'splash':{
'endpoint':'render.html',
'args':{
'wait':0.5,
'images':0,
'render_all':1
}
}
})
request.meta['Index_Url'] = url
request.meta['Max_Page'] = Max_Page
request.meta['All_Detail_Page'] = All_Detail_Page
request.meta['Final_Xpath'] = Final_Xpath
yield request
if len(v[1]) == 4:
self.Index_Url = v[1][0]['Index_Url']
Is_Json = v[1][0]['Is_Json']
Max_Page = v[1][0]['Max_Page']
All_Detail_Page = v[1][1]['All_Detail_Page']
Signal_Detail_Page = v[1][2]['Signal_Detail_Page']
Final_Xpath = v[1][3]['Final_Xpath']
if Is_Json == 1:
for url in self.Index_Url:
request = Request(url,callback = self.parse_json)
request.meta['Index_Url'] = url
request.meta['Max_Page'] = Max_Page
request.meta['All_Detail_Page'] = All_Detail_Page
request.meta['Signal_Detail_Page'] = Signal_Detail_Page
request.meta['Final_Xpath'] = Final_Xpath
yield request
else:
for url in self.Index_Url:
request = Request(url,callback = self.parse_splash,dont_filter=True,meta={
'splash':{
'endpoint':'render.html',
'args':{
'wait':0.5,
'images':0,
'render_all':1
}
}
})
request.meta['Index_Url'] = url
request.meta['Max_Page'] = Max_Page
request.meta['All_Detail_Page'] = All_Detail_Page
request.meta['Signal_Detail_Page'] = Signal_Detail_Page
request.meta['Final_Xpath'] = Final_Xpath
yield request
if len(v[1]) == 5:
self.Index_Url = v[1][0]['Index_Url']
Is_Json = v[1][0]['Is_Json']
Max_Page = v[1][0]['Max_Page']
All_Detail_Page = v[1][1]['All_Detail_Page']
Signal_Detail_Page = v[1][2]['Signal_Detail_Page']
Target_Detail_Page = v[1][3]['Target_Detail_Page']
Final_Xpath = v[1][4]['Final_Xpath']
if Is_Json == 1:
for url in self.Index_Url:
request = Request(url,callback = self.parse_json)
request.meta['Index_Url'] = url
request.meta['Max_Page'] = Max_Page
request.meta['All_Detail_Page'] = All_Detail_Page
request.meta['Signal_Detail_Page'] = Signal_Detail_Page
request.meta['Target_Detail_Page'] = Target_Detail_Page
request.meta['Final_Xpath'] = Final_Xpath
yield request
else:
for url in self.Index_Url:
request = Request(url,callback = self.parse_splash,meta={
'splash':{
'endpoint':'render.html',
'args':{
'wait':0.5,
'images':0,
'render_all':1
}
}
})
request.meta['Index_Url'] = url
request.meta['Max_Page'] = Max_Page
request.meta['All_Detail_Page'] = All_Detail_Page
request.meta['Signal_Detail_Page'] = Signal_Detail_Page
request.meta['Target_Detail_Page'] = Target_Detail_Page
request.meta['Final_Xpath'] = Final_Xpath
yield request
def parse_splash(self,response):
#这边就是管你有没有，我都接收，在使用的时候判断，如果不存在，说明要直接到final_parse处
Index_Url = response.meta.get('Index_Url',None)
Max_Page = response.meta.get('Max_Page',None)
All_Detail_Page = response.meta.get('All_Detail_Page',None)
Signal_Detail_Page = response.meta.get('Signal_Detail_Page',None)
Target_Detail_Page = response.meta.get('Target_Detail_Page',None)
Final_Xpath = response.meta.get('Final_Xpath',None)
max_pages = 2
try:
max_pages = re.search(Max_Page['re'],''.join(response.xpath(Max_Page['xpath']).extract())).group()
except Exception,e:
print Exception,":",e
#这里是替换末尾的\d+，记住，遇上其他情况，就扩展这个get_HeadUrl()
urls = get_HeadUrl(Index_Url,self.name)
try:
max_pages = Total_page_circulate(self.name,int(max_pages))
except Exception,e:
print Exception,":",e
Index_Url = response.meta.get('Index_Url',None)
Max_Page = response.meta.get('Max_Page',None)
All_Detail_Page = response.meta.get('All_Detail_Page',None)
Signal_Detail_Page = response.meta.get('Signal_Detail_Page',None)
Target_Detail_Page = response.meta.get('Target_Detail_Page',None)
Final_Xpath = response.meta.get('Final_Xpath',None)
res_json = json.loads(response.body_as_unicode())
depth = 0
try:
while depth < len(Max_Page['index']):
res_json = res_json.get(Max_Page['index'][depth])
depth += 1
except Exception,e:
print Exception,":",e
urls = get_HeadUrl(Index_Url,self.name)
print "now the res_json is %s"%res_json
max_pages = Total_page_circulate(self.name,int(res_json))
print "最大页数是:%d"%max_pages
if All_Detail_Page is None:
for i in range(1,max_pages+1):
i = Turn_True_Page(i,self.name)
url = urls.format(page=str(i))
request = Request(url,callback = self.parse_final,dont_filter=True,meta={
'splash':{
'endpoint':'render.html',
'args':{
'wait':0.5,
'images':0,
'render_all':1