selenium&phantom实战--获取代理数据

获取快代理网站的数据

注意：

#!/usr/bin/env python
# _*_ coding: utf-8 _*_
# __author__ ='kong'
# 导入模块
from selenium import webdriver

# 定义一个类用来存放代理数据
class Item(object):
    ip = None
    port = None
    anonymous = None
    type = None
    support = None
    local = None
    speed = None

# 主类
class GetProx(object):
    def __init__(self):
        self.startUrl = "http://www.kuaidaili.com/proxylist/"
        self.urls = self.getUrls()
        self.proxList = self.getProxyList(self.urls)
        self.fileName = 'proxy.txt'
        self.saveFile(self.fileName,self.proxList)

    # 获取所有要访问的url
    def getUrls(self):
        urls = []
        for i in xrange(1,11):
            url = self.startUrl + str(i)
            urls.append(url)
        return urls

    # 获取每个url的代理数据
    def getProxyList(self,urls):
        # 创建一个浏览器实例
        browser = webdriver.PhantomJS()
        proxyList = []
        item = Item()
        for url in urls:
            # 向指定的url发送请求
            browser.get(url)
            # 智能等待5秒
            browser.implicitly_wait(5)
            # 获取网页上的代理表格数据
            elements = browser.find_elements_by_xpath("//tbody/tr")
            for element in elements:
                item.ip = element.find_element_by_xpath("./td[1]").text.encode("utf8")
                item.port = element.find_element_by_xpath("./td[2]").text.encode("utf8")
                item.anonymous = element.find_element_by_xpath("./td[3]").text.encode("utf8")
                item.type = element.find_element_by_xpath("./td[4]").text.encode("utf8")
                item.support = element.find_element_by_xpath("./td[5]").text.encode("utf8")
                item.local = element.find_element_by_xpath("./td[6]").text.encode("utf8")
                item.speed = element.find_element_by_xpath("./td[7]").text.encode("utf8")
                proxyList.append(item)
        # 最后退出浏览器实例
        browser.quit()
        return proxyList

    # 代理数据写入文件中
    def saveFile(self,fileName,proxyList):
        with open(fileName,'w') as fp:
            for each in proxyList:
                fp.write(each.ip + "\t")
                fp.write(each.port + "\t")
                fp.write(each.anonymous +"\t")
                fp.write(each.type + "\t")
                fp.write(each.support + "\t")
                fp.write(each.local + "\t")
                fp.write(each.speed + "\t")
                fp.write("\n")

if __name__ == '__main__':
    gp = GetProx()