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crawler.py
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crawler.py
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# -*- coding:utf-8 -*-
"""
Author：SPIDERMAN
Time: 2021/7/19
Software: PyCharm
"""
import json
from bs4 import BeautifulSoup as bs
import requests
from urllib.parse import unquote, quote
from concurrent import futures
"""
百度图片https://image.baidu.com/
360搜图：https://image.so.com/
微软：https://cn.bing.com/images/trending?FORM=ILPTRD
"""
def baidu_get_image_url(keywords, max_number=10000, use_proxy=None):
"""
获取百度图片urls
:param keywords: 关键词
:param max_number: 获取图片数量
:param use_proxy: 是否使用代理
:return:
"""
def decode_url(url):
in_table = '0123456789abcdefghijklmnopqrstuvw'
out_table = '7dgjmoru140852vsnkheb963wtqplifca'
translate_table = str.maketrans(in_table, out_table)
mapping = {'_z2C$q': ':', '_z&e3B': '.', 'AzdH3F': '/'}
for k, v in mapping.items():
url = url.replace(k, v)
return url.translate(translate_table)
base_url = "https://image.baidu.com/search/acjson?tn=resultjson_com&ipn=rj&ct=201326592" \
"&lm=7&fp=result&ie=utf-8&oe=utf-8&st=-1&face=0"
keywords_str = "&word={}&queryWord={}".format(
quote(keywords), quote(keywords))
query_url = base_url + keywords_str
init_url = query_url + "&pn=0&rn=30"
proxies = None
# if use_proxy:
# proxies = {"http": "{}://{}".format(proxy_type, proxy),
# "https": "{}://{}".format(proxy_type, proxy)}
headers = {
'Accept-Language': 'zh-CN,zh;q=0.8,zh-TW;q=0.7,zh-HK;q=0.5,en-US;q=0.3,en;q=0.2',
'User-Agent': 'Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:90.0) Gecko/20100101 Firefox/90.0',
'Connection': 'keep-alive',
'Upgrade-Insecure-Requests': '1'
}
response = requests.get(init_url, proxies=proxies, headers=headers)
init_json = json.loads(response.text)
# 全部图片数量
total_num = init_json['listNum']
print("目标网站搜索结果为:{}".format(total_num ))
crawl_num = min(max_number, total_num)
# 一页60个图片 接口一次30条
crawled_urls = list()
# 请求一次30条
batch_size = 30
with futures.ThreadPoolExecutor(max_workers=5) as executor:
future_list = list()
def get_image_urls(page, batch_size):
image_urls = list()
url = query_url + "&pn={}&rn={}".format(page * batch_size, batch_size)
try_time = 0
while True:
try:
response = requests.get(url, proxies=proxies, headers=headers)
break
except Exception as e:
try_time += 1
if try_time > 3:
print(e)
return image_urls
response.encoding = 'utf-8'
res_json = json.loads(response.text)
for data in res_json['data']:
if 'objURL' in data.keys():
image_urls.append(decode_url(data['objURL']))
elif 'replaceUrl' in data.keys() and len(data['replaceUrl']) == 2:
image_urls.append(data['replaceUrl'][1]['ObjURL'])
return image_urls
for page in range(0, int((crawl_num + batch_size - 1) / batch_size)):
future_list.append(executor.submit(get_image_urls, page, batch_size))
for future in futures.as_completed(future_list):
if future.exception() is None:
crawled_urls += future.result()
else:
print(future.exception())
crawled_urls = list(set(crawled_urls))
return crawled_urls[:min(len(crawled_urls), crawl_num)]
def bing_get_image_url(keywords, max_number=10000, use_proxy=None):
"""
获取必应图片urls
:param keywords: 关键词
:param max_number: 获取图片数量
:param use_proxy: 是否使用代理
:return:
"""
crawled_urls = list()
def find_image_url(html):
image_urls = list()
soup = bs(html, 'lxml')
image_elements = soup.find_all('a',attrs='iusc')
for image_element in image_elements:
m_json_str = image_element["m"]
m_json = json.loads(m_json_str)
image_urls.append(m_json["murl"])
return image_urls
base_url = "https://cn.bing.com/images/async?count=35&cw=1689&ch=249&relp=35&tsc=ImageBasicHover&datsrc=I&layout=RowBased_Landscape&mmasync=1&dgState=x*0_y*0_h*0_c*7_i*36_r*5&IG=9921BE4B40B941CB8078BE6F1F74599B&iid=images.5544"
keywords_str = "&q={}".format(quote(keywords))
query_url = base_url + keywords_str
proxies = None
# if use_proxy:
# proxies = {"http": "{}://{}".format(proxy_type, proxy),
# "https": "{}://{}".format(proxy_type, proxy)}
headers = {
'Accept-Language': 'zh-CN,zh;q=0.8,zh-TW;q=0.7,zh-HK;q=0.5,en-US;q=0.3,en;q=0.2',
'User-Agent': 'Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:90.0) Gecko/20100101 Firefox/90.0',
'Connection': 'keep-alive',
'Upgrade-Insecure-Requests': '1'
}
# 请求一次35条
batch_size = 35
with futures.ThreadPoolExecutor(max_workers=5) as executor:
future_list = list()
def get_image_urls(page, batch_size):
image_urls = list()
url = query_url + "&first={}&SFX={}".format(page * batch_size, page)
try_time = 0
while True:
try:
response = requests.get(url, proxies=proxies, headers=headers)
break
except Exception as e:
try_time += 1
if try_time > 3:
print(e)
return image_urls
first_data = find_image_url(response.text)
image_urls += first_data
return image_urls
for page in range(0, int((max_number+batch_size) / batch_size)+1):
future_list.append(executor.submit(get_image_urls, page, batch_size))
for future in futures.as_completed(future_list):
if future.exception() is None:
crawled_urls += future.result()
else:
print(future.exception())
crawled_urls = list(set(crawled_urls))
return crawled_urls[:min(len(crawled_urls), max_number)]
def i360_get_image_url(keywords, max_number=10000, use_proxy=None):
"""
获取360图片urls
:param keywords: 关键词
:param max_number: 获取图片数量
:param use_proxy: 是否使用代理
:return:
"""
base_url = "https://image.so.com/j?pd=1&pn=60&correct=%E4%B8%AD%E5%9B%BD%E5%9C%B0%E5%9B%BE&adstar=0&tab=all&sid=3d5cb4d00501224658973509860cbfc4&ras=0&cn=0&gn=0&kn=50&crn=0&bxn=20&cuben=0&pornn=0&manun=50&src=srp"
keywords_str = "&q={}".format(quote(keywords))
query_url = base_url + keywords_str
init_url = query_url + "&sn=0"
proxies = None
# if use_proxy:
# proxies = {"http": "{}://{}".format(proxy_type, proxy),
# "https": "{}://{}".format(proxy_type, proxy)}
headers = {
'Accept-Language': 'zh-CN,zh;q=0.8,zh-TW;q=0.7,zh-HK;q=0.5,en-US;q=0.3,en;q=0.2',
'User-Agent': 'Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:90.0) Gecko/20100101 Firefox/90.0',
'Connection': 'keep-alive',
'Upgrade-Insecure-Requests': '1'
}
response = requests.get(init_url, proxies=proxies, headers=headers)
init_json = json.loads(response.text)
# 全部图片数量
total_num = init_json['total']
print("目标网站搜索结果为:{}".format(total_num ))
# 一页60个图片 接口一次30条
crawl_num = min(max_number, total_num)
crawled_urls = list()
# 请求一次30条
batch_size = 50
with futures.ThreadPoolExecutor(max_workers=5) as executor:
future_list = list()
def get_image_urls(page, batch_size):
image_urls = list()
url = query_url + "&sn={}".format(page * 10)
try_time = 0
while True:
try:
response = requests.get(url, proxies=proxies, headers=headers)
break
except Exception as e:
try_time += 1
if try_time > 3:
print(e)
return image_urls
response.encoding = 'utf-8'
res_json = json.loads(response.text)
for data in res_json['list']:
image_urls.append(data['img'])
return image_urls
for page in range(0, int((crawl_num + batch_size - 1) / batch_size)):
future_list.append(executor.submit(get_image_urls, page, batch_size))
for future in futures.as_completed(future_list):
if future.exception() is None:
crawled_urls += future.result()
else:
print(future.exception())
crawled_urls = list(set(crawled_urls))
return crawled_urls[:min(len(crawled_urls), crawl_num)]
def crawl_image_urls(keywords, engine="baidu", max_number=10000,use_proxy=False):
"""
:param keywords:
:param engine:
:param max_number:
:param use_proxy:
:return:
"""
print("目标网站为:{}".format(engine))
print("关键词为: " + keywords)
if max_number <= 0:
print("目标抓取不能为0")
max_number = 10000
else:
print("抓取数量为:{}条".format(max_number))
image_urls = 0
if engine== "baidu":
image_urls = baidu_get_image_url(keywords, max_number=max_number,use_proxy=use_proxy)
elif engine == "bing":
image_urls = bing_get_image_url(keywords, max_number=max_number, use_proxy=use_proxy)
elif engine == "360":
image_urls = i360_get_image_url(keywords, max_number=max_number, use_proxy=use_proxy)
else: # Baidu
print('目前只支持baidu、360、bing')
if len(image_urls)>=0:
print("目标抓取:{0}条 已抓取:{1}条".format(max_number, len(image_urls)))
else:
print("抓取异常".format(max_number, len(image_urls)))
return image_urls
if __name__ == '__main__':
res = i360_get_image_url('中国地图',100)
# res = baidu_get_image_url('中国地图',100)
# res = bing_get_image_url('中国地图',100)
print(res)
print(len(res))
print(len(set(res)))