【正文】 he requirement of customizing and the search engine maintenance is larger and larger. For dealing with such enormous work data, especially, how to store it and access our necessary information has bee so significant. However,web search engine can help us to solve this problem well.This acticle describes the principle of fulltext search engine,and the process for its design and implementation. This system adopts Java Web platform with B/S model, and also the relative frame of Nutch, including Nutch,Solr,Hadoop, and collection and inspection for whole work information based on Lucenethe foundation of Nutch. All in all, this text mainly elaborates the backgroud of relative frame, basical principle, and application for Nutch.The appearance of Nutch related framework, makes that building an personalized search engine based on Java platform to be an simple and reliable way. Nutch is mitted to make everyone configure a wordclass web search engine easily and low present, there are many big panies at home, like baidu, yahoo, are using such Nutch relative frame. Due to the fact that Nutch is opensource, reading its source code can let us have a more profound experience when realizing the search engine, and at the same time, can custojmize the needed details for realizing the seach engine deeply. At frist, this article introduces the background of research project. Then, it specifically describes the theoretical knowledge of system and the related theory of framework. Finally, it achieves the system function step by step according to the development method of software engineering.KeywordsNutch、Solr、Hadoop、Lucene、Search Engine 江漢大學(xué)本科畢業(yè)論文（設(shè)計）V目錄1 緒論 ...................................................................................1 課題背景及介紹 ......................................................................1 課題研究目的及應(yīng)用 ..................................................................1 課題研究范圍 ........................................................................1 小結(jié) ................................................................................22 搜索引擎相關(guān)理論研究 ...................................................................3 WEB搜索引擎原理和結(jié)構(gòu) ...............................................................3 搜索引擎三段式工作流程 ..........................................................3 搜索引擎整體結(jié)構(gòu) ................................................................4 網(wǎng)頁收集 ............................................................................5 爬蟲的工作流程 ..................................................................5 爬蟲的抓取策略 ..................................................................5 鏈接數(shù)據(jù)庫的建立 ................................................................6 鏈接數(shù)據(jù)庫的更新 ................................................................6 網(wǎng)頁預(yù)處理 ..........................................................................6 建立索引頁面庫 ..................................................................7 分詞 ............................................................................9 倒排索引 .......................................................................10 查詢服務(wù) ...........................................................................12 查詢方式和匹配 .................................................................12 結(jié)果排序 .......................................................................13 文檔摘要 .......................................................................14 小結(jié) ...............................................................................153 NUTCH 相關(guān)框架研究 .....................................................................16 LUCENE研究 .........................................................................16 Lucene 概述 ....................................................................16 Lucene 如何對索引進(jìn)行搜索 ......................................................16 Lucene 增刪改索引的 API.........................................................17 NUTCH研究 ..........................................................................21 Nutch 概述 .....................................................................21 研究 Nutch 的原因 ...............................................................21 研究 Nutch 的目標(biāo) ...............................................................22 Nutch 和 Lucene 比較 ............................................................22 Nutch 常用命令 .................................................................22 SOLR研究 ...........................................................................28 Solr 概述 ......................................................................28 Solr 索引 ......................................................................28 江漢大學(xué)本科畢業(yè)論文（設(shè)計）VI Solr 搜索 ......................................................................29 Lucene 索引查看工具 Luke........................................................31 HADOOP研究 .........................................................................32 Hadoop 概述 ....................................................................32 Hadoop 單機本地模式 ............................................................34 Hadoop 單機偽分布式模式 ........................................................34 小結(jié) ...............................................................................364 全文搜索引擎系統(tǒng)分析與技術(shù)選型 ........................................................37 系統(tǒng)目標(biāo)需求 .......................................................................37 系統(tǒng)功能項 .........................................................................37 可行性分析與決策 ...................................................................37 技術(shù)可行性 .....................................................................38 經(jīng)濟可行性 .....................................................................38 小結(jié) ......................................................................