基于java的搜索引擎的设计与实现，  “网络蜘蛛”或者说“网络爬虫”，是一种能访问网站并跟踪链接的程序，通过它，可快速地画出一个网站所包含的网页地图信息。本文主要讲述如何使用Java编程来构建一个“蜘蛛”-Design and implementation of java-based search engine, " spider"　or " web crawler" , is able to visit the site and follow the link for the program, through which can quickly draw Site Map Information contained in a website . This article describes how to build a " spider"　in the Java programming