AugustLeo_cheng
AugustLeo_cheng
2015-09-02 02:14
采纳率: 100%
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爬虫 在网页定位验证码,然后显示出来,手动输入验证码,求代码

爬虫,在网页定位验证码,然后不管在哪里显示出来都行,然后手动输入验证码,继续爬,不需要登录,但是需要搜索功能,跪求完整代码,可以想象爬有验证码的百度。

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5条回答 默认 最新

  • AugustLeo_cheng
    AugustLeo_cheng 2015-09-06 02:39
    已采纳
    • - 我已经搞定了,直接复制图片链接, 放在img的src里 然后写个输入框 post一起提交过去
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  • wangchixiao
    Jason_WangG 2015-09-02 02:39

    验证码是可以机器识别的

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  • a73169482
    a73169482 2015-09-02 02:53

    如果别人在页面中只是显示图片,那么 你要用正则来获取对应的区域 将里面的图片输出流显示在你想显示的地方
    现在目前 要攻破验证码还是比较困难的,因为可以使用KEY来做 页面完全 不需要有验证码的数据 只是图片流而已

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  • dcxy0
    Q544471255 2015-09-02 05:56

    http://www.uuwise.com/

    识别验证码,你要拿到验证码的图片,然后发送给上面这个网址的地方,他们会返回一个字符串的验证码给你。

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  • wangyaninglm
    shiter 2015-09-02 09:32

    以下是部分python代码:

    
    
    #!usr/bin/env python
    
    
    #-*- coding: utf-8 -*-
    
    
    import os
    import urllib2
    import urllib
    import cookielib
    import xml.etree.ElementTree as ET
    
    
    #-----------------------------------------------------------------------------
    # Login in www.***.com.cn
    def ChinaBiddingLogin(url, username, password):
            # Enable cookie support for urllib2
            cookiejar=cookielib.CookieJar()
            urlopener=urllib2.build_opener(urllib2.HTTPCookieProcessor(cookiejar))
            urllib2.install_opener(urlopener)
    
            urlopener.addheaders.append(('Referer', 'http://www.chinabidding.com.cn/zbw/login/login.jsp'))
            urlopener.addheaders.append(('Accept-Language', 'zh-CN'))
            urlopener.addheaders.append(('Host', 'www.chinabidding.com.cn'))
            urlopener.addheaders.append(('User-Agent', 'Mozilla/5.0 (compatible; MISE 9.0; Windows NT 6.1); Trident/5.0'))
            urlopener.addheaders.append(('Connection', 'Keep-Alive'))
    
    
            print 'XXX Login......'
    
    
            imgurl=r'http://www.*****.com.cn/zbw/login/image.jsp'
            DownloadFile(imgurl, urlopener)
            authcode=raw_input('Please enter the authcode:')
            #authcode=VerifyingCodeRecognization(r"http://192.168.0.106/images/code.jpg")
    
    
            # Send login/password to the site and get the session cookie
            values={'login_id':username, 'opl':'op_login', 'login_passwd':password, 'login_check':authcode}
            urlcontent=urlopener.open(urllib2.Request(url, urllib.urlencode(values)))
            page=urlcontent.read(500000)
    
    
            # Make sure we are logged in, check the returned page content
            if page.find('login.jsp')!=-1:
                    print 'Login failed with username=%s, password=%s and authcode=%s' \
                                    % (username, password, authcode)
                    return False
            else:
                    print 'Login succeeded!'
                    return True
    
    
    #-----------------------------------------------------------------------------
    # Download from fileUrl then save to fileToSave
    # Note: the fileUrl must be a valid file
    def DownloadFile(fileUrl, urlopener):
            isDownOk=False
    
    
            try:
                    if fileUrl:
                            outfile=open(r'/var/www/images/code.jpg', 'w')
                            outfile.write(urlopener.open(urllib2.Request(fileUrl)).read())
                            outfile.close()
    
    
                            isDownOK=True
                    else:
                            print 'ERROR: fileUrl is NULL!'
            except:
                    isDownOK=False
    
    
            return isDownOK
    
    
    #------------------------------------------------------------------------------
    # Verifying code recoginization
    def VerifyingCodeRecognization(imgurl):
            url=r'http://192.168.0.119:800/api?'
            user='admin'
            pwd='admin'
            model='ocr'
            ocrfile='cbi'
    
    
            values={'user':user, 'pwd':pwd, 'model':model, 'ocrfile':ocrfile, 'imgurl':imgurl}
            data=urllib.urlencode(values)
    
    
            try:
                    url+=data
                    urlcontent=urllib2.urlopen(url)
            except IOError:
                    print '***ERROR: invalid URL (%s)' % url
    
    
            page=urlcontent.read(500000)
    
    
            # Parse the xml data and get the verifying code
            root=ET.fromstring(page)
            node_find=root.find('AddField')
            authcode=node_find.attrib['data']
    
    
            return authcode
    
    
    #------------------------------------------------------------------------------
    # Read users from configure file
    def ReadUsersFromFile(filename):
            users={}
            for eachLine in open(filename, 'r'):
                    info=[w for w in eachLine.strip().split()]
                    if len(info)==2:
                            users[info[0]]=info[1]
    
    
            return users
    
    
    #------------------------------------------------------------------------------
    def main():
            login_page=r'http://www.***.com.cnlogin/login.jsp'
            download_page=r'http://www.***.com.cn***/***?record_id='
    
    
            start_id=8593330
            end_id=8595000
    
    
            now_id=start_id
            Users=ReadUsersFromFile('users.conf')
            while True:
                    for key in Users:
                            if ChinaBiddingLogin(login_page, key, Users[key]):
                                    for i in range(3):
                                            pageUrl=download_page+'%d' % now_id
                                            urlcontent=urllib2.urlopen(pageUrl)
    
    
                                            filepath='./download/%s.html' % now_id
                                            f=open(filepath, 'w')
                                            f.write(urlcontent.read(500000))
                                            f.close()
    
    
                                            now_id+=1
                            else:
                                    continue
    #------------------------------------------------------------------------------
    
    
    if __name__=='__main__':
            main()
    
    
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