# -*-encoding:utf-8 -*-
from DataOutput import DataOutput
from HtmlDownloader import HtmlDownloader
from HtmlParser import HtmlParse
from URLmanager import UrlManager
class SpiderMan(object):

def __init__(self):
    super(SpiderMan, self).__init__()


    self.manager = UrlManager()
    self.downloader = HtmlDownloader()
    self.parser = HtmlParse()
    self.output = DataOutput()

def crawl(self,root_url):
    #添加入口url
    self.manager.add_new_url(root_url)

    #判断url管理器中是否有新的url
    while(self.manager.has_new_url()and self.manager.old_url_size()<100):
        try:
            print("1")
            #从URL管理器获取新的url
            new_url = self.manager.get_new_url()
            print("2")
            #从HTML下载器下载网页
            html = self.downloader.download(new_url)
            print("3")
            #HTML解析器对网页进行解析
            new_urls,data = self.parser.parse(new_url,html)

            #将抽取的url添加到url管理器中
            print("4")
            self.manager.add_new_urls(new_urls)
            #数据存储器存储文件
            print("5")
            #print(data)
            self.output.store_data(data)
            print("已经抓取%s个链接"%self.manager.old_url_size())
        except Exception as e:
            print("crawl failed")
    self.output.output_html()

if __name__ == '__main__':

Spider_Man = SpiderMan()
Spider_Man.crawl("http://baike.baidu.com/view/284853.html")

由于在解析html页面时没有对获取到的超链接进行很好的提取所以能获取到的数据有限