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读书笔记《自己动手写网络爬虫》，自己敲的代码。主要记录了网络爬虫的基本实现，网页去重的算法，网页指纹算法，文本信息挖掘

License: Apache License 2.0

Java 100.00%

codes-scratch-crawler's Introduction

爬虫相关知识代码

读书笔记《自己动手写网络爬虫》，自己敲的代码。主要记录了网络爬虫的基本实现，网页去重的算法，网页指纹算法，文本信息挖掘

  • ConsistentHash 一致hash算法

  • HashAlgorithms hash算法大全

  • MurmurHash MurMurHash算法，是非加密HASH算法，性能很高，碰撞率低

  • IPSeeker 封装了腾讯的ip库，提供一些工具,读取QQwry.dat文件，以根据ip获得好友位置

  • HITS HITS算法实现

  • PageRank PageRank算法实现

  • WebGraph Web图建模

  • WebGraphMemory 内存Web图

  • SimpleBloomFilter 布隆过滤器

  • BDBFrontier 使用Berkeley DB 来做爬虫的前端url爬取列表存储

  • Crawler 爬虫一只，采用了宽度优先的方式爬取网络，并且使用httpclien4.3来下载网页

  • CrawlUrl 一个封装了爬虫的url地址的对象，可以使用其layer变量控制限制层次的爬取

  • DownLoadFile 一个下载网页数据到本地的工具类

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