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| import threading
import requests
import re
import pymongo
import tkinter as tk
from tkinter import messagebox
import time
import xlsxwriter
import matplotlib.pyplot as plt
import numpy as np
import random
is_running = False
def get_html(url):
'''
访问url链接，取得html源码并返回
:param url: url链接地址
:return: 获取正常，返回html源码；出现异常，返回None
'''
try:
user_agent = 'Mozilla/5.0 (Windows NT 6.2; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/45.0.2454.101 Safari/537.36'
headers = {'User_agent': user_agent}
r = requests.get(url, headers=headers)
r.raise_for_status()
r.encoding = "utf-8"
return r.text
except Exception as e:
info = "获取html出现异常：\n" + str(e)
print(info)
print_info(info)
return None
def parse_data(result, html):
'''
从html中提取每个信息，并格式化为字典，存储在result这个列表中的同时，保存到数据库中去
:param result: 结果列表
:param html: html源码
'''
try:
titles = re.findall(r'\"raw_title\":\".*?\"', html)
prices = re.findall(r'\"view_price\":\"[\d.]*\"', html)
deals = re.findall(
r'\"view_sales\":\"[0-9]*[1-9][0-9]*[\u4e00-\u9fa5]+\"', html)
pics = re.findall(r'\"pic_url\":\".*?"', html)
detailurls = re.findall(r'\"detail_url":\".*?\"', html)
locations = re.findall(r'\"item_loc\":\"\D*?\"', html)
shops = re.findall(r'\"nick\":\".*?\"', html)
shopurls = re.findall(r'\"shopLink\":\".*?\"', html)
for i in range(len(titles)):
product = {
'title':
eval(str(titles[i].split(":")[1])),
'price':
eval(str(prices[i].split(":")[1])),
'deal':
eval(str(deals[i].split(":")[1]))[:-3],
'pic':
"https:" + eval(str(pics[i].split(":")[1])),
'detailurl':
("https:" + eval(str(detailurls[i].split(":")[1]))
).encode("unicode_escape").decode("unicode_escape"),
'location':
eval(str(locations[i].split(":")[1])),
'shop':
eval(str(shops[i].split(":")[1])),
'shopurl':
"https:" + eval(str(shopurls[i].split(":")[1])).encode(
"unicode_escape").decode("unicode_escape")
}
print(product)
result.append(product)
except Exception as e:
info = "提取信息出现异常：\n" + str(e)
print(info)
print_info(info)
def save_to_db(dburl, dbport, dbname, dbuser, dbpwd, dbtable, products):
info = "正在保存数据到数据库。"
print_info(info)
print(info)
client = pymongo.MongoClient(host=dburl, port=int(dbport))
if dbuser and dbpwd:
client['admin'].authenticate(dbuser, dbpwd, dbname, 'DEFAULT')
db = client[dbname]
try:
db[dbtable].insert_many(products)
except Exception as e:
info = "保存到数据库出现异常：\n" + str(e) + "\n"
print_info(info)
print(info)
info = "保存到数据库成功。"
print_info(info)
print(info)
def spider_crawl(dburl, dbport, dbname, dbuser, dbpwd, dbtable, keyword, depth, mode):
link = "https://s.taobao.com/search?q=" + keyword + "&sort=sale-desc"
products = []
for i in range(int(depth)):
info = "正在读取第 " + str(i + 1) + " 页。"
print_info(info)
print(info)
try:
url = link + "&s=" + str(44 * i)
html = get_html(url)
parse_data(products, html)
except Exception as e:
info = "spider_crawl出现异常：\n" + str(e)
print_info(info)
print(info)
continue
result_info = "爬取完毕，共获取到 " + str(len(products)) + " 条商品信息。"
print_info(result_info)
print(result_info)
if mode == 1:
save_to_db(dburl, dbport, dbname, dbuser, dbpwd, dbtable, products)
elif mode == 2:
write_to_excel(keyword, dbname, dbtable, products)
elif mode == 3:
save_to_db(dburl, dbport, dbname, dbuser, dbpwd, dbtable, products)
write_to_excel(keyword, dbname, dbtable, products)
info = "提示：此次爬取信息过程完整结束。"
print_info(info)
print(info)
is_running = False
def write_to_excel(keyword, dbname, dbtable, products):
info = "正在保存数据到Excel文件。"
print_info(info)
print(info)
filename = keyword + '_' + dbname + '_' + dbtable + '_' + time.strftime(
"%Y-%m-%d_%H-%M-%S",
time.localtime(time.time())) + '_' + str(len(products)) + '.xlsx'
workbook = xlsxwriter.Workbook(filename)
worksheet = workbook.add_worksheet()
headers = [
'_id', 'title', 'price', 'deal', 'shop', 'location', 'pic',
'detailurl', 'shopurl'
]
header_row = 0
for header in headers:
col = headers.index(header)
worksheet.write(header_row, col, header)
data_row = 1
for product in products:
for _key, _value in product.items():
col = headers.index(_key)
if _key == '_id' or _key == 'pic' or _key == 'detailurl' or _key == 'shopurl':
worksheet.write_rich_string(data_row, col, str(_value))
else:
worksheet.write(data_row, col, str(_value))
data_row += 1
workbook.close()
info = "成功保存数据到Excel文件。"
print_info(info)
print(info)
def crawl():
is_running = True
db_url = entry_db_url.get()
db_port = entry_db_port.get()
db_name = entry_db_name.get()
db_user = entry_db_user.get()
db_pwd = entry_db_pwd.get()
db_table = entry_db_table.get()
keyword = entry_keyword.get()
depth = entry_depth.get()
mode = var_radio.get()
if mode == 0:
messagebox.showerror(title='错误！', message='没有选择数据保存方式！')
elif mode == 1 or mode == 3:
if db_url and db_port and db_name and db_table and keyword and depth:
if int(depth) > 100:
depth = 100
elif int(depth) <= 0:
depth = 1
run_in_thread(spider_crawl, db_url, db_port, db_name, db_user, db_pwd, db_table,
keyword, depth, mode)
else:
messagebox.showerror(title='错误！', message='如果您的数据库不需要登录，则④⑤两项可以不填；否则，①~⑧项必须全部填写！')
elif mode == 2:
if keyword and depth:
run_in_thread(spider_crawl, db_url, db_port, db_name, db_table,
keyword, depth, mode)
else:
messagebox.showerror(title='错误！', message='⑦⑧项必须全部填写！')
def run_in_thread(func, *args):
t = threading.Thread(target=func, args=args)
t.setDaemon(True)
t.start()
def exit_app():
if is_running:
messagebox.showerror(title='不能退出！', message='程序还在运行，请等待程序运行完毕后再退出。')
else:
root.quit()
def print_info(info):
result_text.insert('end',
"\n" + info + "\n------------------------------------")
result_text.see("end")
def radio_selector():
return var_radio.get()
def read_from_db():
dburl = entry_db_url.get()
dbport = entry_db_port.get()
dbname = entry_db_name.get()
dbuser = entry_db_user.get()
dbpwd = entry_db_pwd.get()
dbtable = entry_db_table.get()
client = pymongo.MongoClient(host=dburl, port=int(dbport))
if dbuser and dbpwd:
client['admin'].authenticate(dbuser, dbpwd, 'admin', 'DEFAULT')
db = client[dbname]
items = db[dbtable].find({}, {'price': 1, 'deal': 1, '_id': 0})
results = {}
for item in items:
results[item['deal']] = item['price']
return results
def show_linear_chart():
datas = read_from_db()
max_deal = max(datas.keys(), key=lambda x: int(x))
min_deal = min(datas.keys(), key=lambda x: int(x))
max_price = max(datas.values(), key=lambda x: float(x))
min_price = min(datas.values(), key=lambda x: float(x))
y_ticks = np.linspace(int(min_deal), int(max_deal), 10, endpoint=False)
x_ticks = np.linspace(float(min_price), float(max_price), 10, endpoint=False)
plt.figure()
plt.title("线性图表",fontproperties='SimHei',fontsize=20,color='green')
plt.xlabel("商品价格（元）",fontproperties='SimHei',fontsize=15,color='green')
plt.ylabel("商品销量（件）",fontproperties='SimHei',fontsize=15,color='green')
ax = plt.gca()
ax.set_xticks(x_ticks)
ax.set_yticks(y_ticks)
new_list = zip(datas.values(), datas.keys())
new_datas = sorted(new_list, key=lambda x: float(x[0]))
x, y = zip(*new_datas)
plt.plot(x, y)
plt.show()
def show_scatter_chart():
datas = read_from_db()
max_deal = max(datas.keys(), key=lambda x: int(x))
min_deal = min(datas.keys(), key=lambda x: int(x))
max_price = max(datas.values(), key=lambda x: float(x))
min_price = min(datas.values(), key=lambda x: float(x))
y_ticks = np.linspace(int(min_deal), int(max_deal), 10, endpoint=False)
x_ticks = np.linspace(float(min_price), float(max_price), 10, endpoint=False)
plt.figure()
plt.title("散点图表",fontproperties='SimHei',fontsize=20,color='green')
plt.xlabel("商品价格（元）",fontproperties='SimHei',fontsize=15,color='green')
plt.ylabel("商品销量（件）",fontproperties='SimHei',fontsize=15,color='green')
ax = plt.gca()
ax.set_xticks(x_ticks)
ax.set_yticks(y_ticks)
new_list = zip(datas.values(), datas.keys())
new_datas = sorted(new_list, key=lambda x: float(x[0]))
x, y = zip(*new_datas)
plt.scatter(x, y, c='r')
plt.show()
def show_bar_chart():
datas = read_from_db()
max_deal = max(datas.keys(), key=lambda x: int(x))
min_deal = min(datas.keys(), key=lambda x: int(x))
max_price = max(datas.values(), key=lambda x: float(x))
min_price = min(datas.values(), key=lambda x: float(x))
y_ticks = np.linspace(int(min_deal), int(max_deal), 10, endpoint=False)
x_ticks = np.linspace(float(min_price), float(max_price), 10, endpoint=False)
plt.figure()
plt.title("柱状图表",fontproperties='SimHei',fontsize=20,color='green')
plt.xlabel("商品价格（元）",fontproperties='SimHei',fontsize=15,color='green')
plt.ylabel("商品销量（件）",fontproperties='SimHei',fontsize=15,color='green')
ax = plt.gca()
ax.set_xticks(x_ticks)
ax.set_yticks(y_ticks)
new_list = sorted(zip(datas.values(), datas.keys()), key=lambda x: float(x[0]))
sample = random.sample(new_list, int(len(new_list) * 0.3))
sorted_sample = sorted(sample, key=lambda x: float(x[0]))
print(sorted_sample)
x_list = []
y_list = []
for x, y in sorted_sample:
x_list.append(float(x))
y_list.append(int(y))
plt.bar(x_list, y_list, width=5.0, facecolor='blue', edgecolor='')
plt.show()
title = '淘宝商品定向爬虫'
author = 'Powered by 孙佳佳'
font_normal_size = 14
root = tk.Tk()
root.title(title)
root.geometry('820x700')
root.anchor('center')
root.resizable(0, 0)
label_title = tk.Label(root, text=title, font=('', 26))
label_title.pack(anchor='center')
label_author = tk.Label(root, text=author, font=('', 14), fg='blue')
label_author.place(x=300, y=50)
label_db_url = tk.Label(root, text='①数据库地址：', font=('', font_normal_size))
label_db_url.place(x=100, y=100)
entry_db_url = tk.Entry(root, show=None, font=('', font_normal_size))
entry_db_url.insert('end', '108.61.162.201')
entry_db_url.place(x=250, y=100)
label_db_port = tk.Label(root, text='②数据库端口：', font=('', font_normal_size))
label_db_port.place(x=100, y=150)
entry_db_port = tk.Entry(root, show=None, font=('', font_normal_size))
entry_db_port.insert('end', '10000')
entry_db_port.place(x=250, y=150)
label_db_name = tk.Label(root, text='③数据库名称：', font=('', font_normal_size))
label_db_name.place(x=100, y=200)
entry_db_name = tk.Entry(root, show=None, font=('', font_normal_size))
entry_db_name.insert('end', 'jack')
entry_db_name.place(x=250, y=200)
label_db_user = tk.Label(root, text='④数据库用户：', font=('', font_normal_size))
label_db_user.place(x=100, y=250)
entry_db_user = tk.Entry(root, show=None, font=('', font_normal_size))
entry_db_user.insert('end', 'jack')
entry_db_user.place(x=250, y=250)
label_db_pwd = tk.Label(root, text='⑤数据库密码：', font=('', font_normal_size))
label_db_pwd.place(x=100, y=300)
entry_db_pwd = tk.Entry(root, show=None, font=('', font_normal_size))
entry_db_pwd.insert('end', '1238912389')
entry_db_pwd.place(x=250, y=300)
label_db_table = tk.Label(root, text='⑥数据库表名：', font=('', font_normal_size))
label_db_table.place(x=100, y=350)
entry_db_table = tk.Entry(root, show=None, font=('', font_normal_size))
entry_db_table.insert('end', 'coffee')
entry_db_table.place(x=250, y=350)
label_keyword = tk.Label(root, text='⑦商品关键词：', font=('', font_normal_size))
label_keyword.place(x=100, y=400)
entry_keyword = tk.Entry(root, show=None, font=('', font_normal_size))
entry_keyword.insert('end', '黑咖啡')
entry_keyword.place(x=250, y=400)
label_depth = tk.Label(root, text='⑧深度≤100：', font=('', font_normal_size))
label_depth.place(x=100, y=450)
entry_depth = tk.Entry(root, show=None, font=('', font_normal_size))
entry_depth.insert('end', '10')
entry_depth.place(x=250, y=450)
result_text = tk.Text(root, font=('', font_normal_size), width=53, height=8)
result_text.place(x=100, y=500)
button_run = tk.Button(
root, text='开始爬取', font=('', font_normal_size), command=crawl)
button_run.place(x=520, y=250)
button_exit = tk.Button(
root, text='退出程序', font=('', font_normal_size), command=exit_app)
button_exit.place(x=640, y=250)
button_tu_1 = tk.Button(
root, text='线性图表', font=('', font_normal_size), command=show_linear_chart)
button_tu_1.place(x=520, y=300)
button_tu_2 = tk.Button(
root, text='散点图表', font=('', font_normal_size), command=show_scatter_chart)
button_tu_2.place(x=640, y=300)
button_tu_3 = tk.Button(
root, text='柱状图表', font=('', font_normal_size), command=show_bar_chart)
button_tu_3.place(x=520, y=350)
var_radio = tk.IntVar()
radio_db = tk.Radiobutton(
root,
text='保存到数据库',
variable=var_radio,
value=1,
font=('', font_normal_size))
radio_db.place(x=520, y=100)
radio_excel = tk.Radiobutton(
root,
text='导出到Excel文件',
variable=var_radio,
value=2,
font=('', font_normal_size))
radio_excel.place(x=520, y=150)
radio_both = tk.Radiobutton(
root,
text='两种方式同时执行',
variable=var_radio,
value=3,
font=('', font_normal_size))
radio_both.place(x=520, y=200)
root.mainloop()
|
