Python利用requests模块下载图片实例代码

本文主要介绍的是关于Python利用requests模块下载图片的相关，下面话不多说了，来一起看看详细的介绍吧

MySQL中事先保存好爬取到的图片链接地址。

然后使用多线程把图片下载到本地。

示例代码：

# coding: utf-8
import MySQLdb
import requests
import os
import re
from threading import Thread
import datetime

header = {'User-Agent': 'Mozilla/5.0 (Windows NT 6.1; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) '
     'Chrome/63.0.3239.132 Safari/537.36'}
file_path = 'F:\\mlu2'
if not os.path.exists(file_path):
os.mkdir(file_path)

class Spider(object):
def __init__(self, file_path, header):
 self.file_path = file_path
 self.header = header

@staticmethod
def timer(func):
 def time_count(*args):
  start_time = datetime.datetime.now()
  func(*args)
  end_time = datetime.datetime.now()
  day = (end_time - start_time).days
  times = (end_time - start_time).seconds
  hour = times / 3600
  h = times ％ 3600
  minute = h / 60
  m = h ％ 60
  second = m
  print "爬取完成"
  print "一共用时％s天％s时％s分％s秒" ％ (day, hour, minute, second)
 return time_count

def get_link(self):
 conn = MySQLdb.connect(host='localhost',
       port=3306,
       user='root',
       passwd='729814',
       db='mlu',
       charset='utf8')
 cur = conn.cursor()
 sql = 'select image from msg limit 100' # image为事先爬取存到MySQL的图片链接地址
 cur.execute(sql)
 img_link = cur.fetchall()
 return img_link

def download(self, link):
 filename = re.findall(r'.*/(.+)', link)[0]
 try:
  pic = requests.get(link, headers=self.header)
  if pic.status_code == 200:
   with open(os.path.join(self.file_path)+os.sep+filename, 'wb') as fp:
    fp.write(pic.content)
    fp.close()
  print "下载完成"
 except Exception as e:
  print e

@timer
def run_main(self):
 threads = []
 links = self.get_link()
 for link in links:
  img = str(link[0])
  t = Thread(target=self.download, args=[img])
  t.start()
  threads.append(t)
 for t in threads:
  t.join()

spider = Spider(file_path, header)
spider.run_main()

来源：https://www.cnblogs.com/delav/p/9398825.html