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本帖最后由 itanium 于 2019-9-23 15:37 编辑
import requests
from lxml import etree
import re
import os
import pdfkit
def gethtml(url,encode):
r = requests.get(url)
r.encoding = encode
return r.text
def writehtml(path,str):
f = open(path,'w+',encoding='utf-8')
f.write(str)
f.close
def validateTitle(title):
rstr = r"[\/\\\:\*\"\<\>\|]"
new_title = re.sub(rstr, "_", title)
return new_title
def mkdir(path):
path = path.strip()
isExists = os.path.exists(path)
if not isExists:
os.makedirs(path)
return True
else:
print('文件夹已存在,请检查后再试!')
return False
def getdata(url,pdf):
print('开始获取,请稍候...')
c_url = url.split('/')[0] + '//' + url.split('/')[2] + '/'
html = gethtml(url,'utf-8')
ehtml = etree.HTML(html)
urll1 = ehtml.xpath('//*[@id="contents"]/dd/a/@href')
till1 = ehtml.xpath('//*[@id="contents"]/dd/a/text()')
s = ehtml.xpath('//*[@id="contents"]/dd/span/text()')
folder=validateTitle(ehtml.xpath('//*[@id="contents"]/dt/a/text()')[0])
if mkdir(savepath+folder):
m = 0
txt=''
for i in urll1:
html = gethtml(c_url + i,'utf-8')
ehtml = etree.HTML(html)
strs = ehtml.xpath('//*[@id="article"]')[-1]
txtl1 = etree.tostring(strs, encoding="utf-8", pretty_print=True, method="html").decode("utf-8")
fname = validateTitle(s[m] + ' ' + till1[m])
txtl1 = re.sub('<h1>.*</h1>','<h1>'+fname+'</h1>',txtl1)
txtl1 = re.sub('src="/','src="'+c_url+'/',txtl1)
txt=txt+txtl1
#writehtml(savepath+folder+'\\'+fname+'.html', txtl1) #每个章节生成一个html文件
s1 = ehtml.xpath('//*[@id="contents"]/dl/dd/text()')
s2 = ehtml.xpath('//*[@id="contents"]/dl/dd/a/text()')
urll2=ehtml.xpath('//*[@id="contents"]/dl/dd/a/@href')
print(fname)
n=0
for j in urll2:
html=gethtml(c_url+j,'utf-8')
ehtml = etree.HTML(html)
strs = ehtml.xpath('//*[@id="arc-body"]')[-1]
txtl2 = etree.tostring(strs, encoding="utf-8", pretty_print=True, method="html").decode("utf-8")
fname = validateTitle(s1[n]+' '+s2[n])
txtl2= re.sub('<h[2,4]>','<h3>',txtl2)
txtl2 = re.sub('</h[2,4]>', '</h3>', txtl2)
txtl2 = re.sub('src="/','src="'+c_url+'/',txtl2)
txtl2 = '<h2>' + fname + '</h2>'+txtl2
txt = txt + txtl2
#writehtml(savepath+folder+'\\'+fname + '.html', txtl2) #每个章节生成一个html文件
print(fname)
n+=1
m+=1
writehtml(savepath+folder+'\\'+folder + '.html',txt)
if pdf:
print('开始生成pdf,请稍候...')
path_wk = r'C:\Program Files\wkhtmltopdf\bin\wkhtmltopdf.exe' # wkhtmltopdf安装位置
config = pdfkit.configuration(wkhtmltopdf=path_wk)
options = {
'page-size': 'A4',
'margin-top': '0.75in',
'margin-right': '0.75in',
'margin-bottom': '0.75in',
'margin-left': '0.75in',
'encoding': "UTF-8",
'outline': None
}
pdfkit.from_file([savepath+folder+'\\'+folder + '.html'], savepath+folder+'\\'+folder+'.pdf',options=options,configuration=config)
print('任务完成!')
if __name__ == '__main__':
url = 'http://c.biancheng.net/shell/' #获取教程url地址
savepath='C:\\' #保存位置
getdata(url,True) #后面True表示生成PDF,False不生成
提示下面的错误,,那位大神看一下我那个地方弄错了,
D:\>python 1.py
开始获取,请稍候...
Traceback (most recent call last):
File "1.py", line 94, in <module>
getdata(url,True) #后面True表示生成PDF,False不生成
File "1.py", line 49, in getdata
fname = validateTitle(s[m] + ' ' + till1[m])
IndexError: list index out of range
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