本篇内容主要讲解“solr4.7拼写检查怎么实现",感兴趣的朋友不妨来看看。本文介绍的方法操作简单快捷,实用性强。下面就让小编来带大家学习“solr4.7拼写检查怎么实现"吧!
拼写检查不同于其他域,它在建立索引时需要分词,但是检索时不需要分词,所以要建立一个特殊的域,以供拼写检查:
在schema.xml文件里设置所需的拼写检查域都有哪些字段:
字段名=“拼写”类型=“文本_拼写”索引=“真”存储=“假”多字符=“真”
copyfield source=' name ' dest='拼写"/
copyFieldsource='content'dest='拼写'/
字段TYPeNAmE=' text _拼写' class=' Solr .TextField ' positionincrementgap=' 100 '
analyzertype='index '
tokenizerclass=' org。沃尔特。分析仪。露西。iktokenizerfactory ' usesmart=' false ' conf=' ik。conf /
filterclass='solr .stop filter factory ' ignore case=' true ' words=' stop words。“txt”使能位置增量=“真”/
/分析仪
analyzertype='query '
tokenizerclass='solr .WhitespaceTokenizerFactory'/
/分析仪
/fieldType在solrconfig.xml文件里设置:
搜索组件名称='拼写错误' class=' Solr ."拼写检查组件"
strname=' querylyzerfieldtype ' text _拼写/str
!-作为索引的一部分-
lstname='拼写检查器'
strname='name'default/str
strname='field '拼写/str
strname=' class name ' Solr。directsolrspellicker/str
strnbs
p;name="distanceMeasure">internal</str>
<float name="accuracy">0.5</float>
<int name="maxEdits">2</int>
<int name="minPrefix">1</int>
<int name="maxInspections">5</int>
<int name="minQueryLength">2</int>
<float name="maxQueryFrequency">0.01</float>
</lst>
<lst name="spellchecker">
<str name="classname">solr.FileBasedSpellChecker</str>
<str name="name">file</str>
<str name="sourceLocation">spellings.txt</str>
<str name="characterEncoding">UTF-8</str>
<str name="spellcheckIndexDir">spellcheckerFile</str>
</lst>
</searchComponent>
<requestHandler name="/spell" class="solr.SearchHandler" startup="lazy">
<lst name="defaults">
<str name="df">spell</str>
<str name="spellcheck.dictionary">default</str>
<str name="spellcheck">on</str>
<!-- <str name="spellcheck.extendedResults">true</str>
<str name="spellcheck.count">10</str>
<str name="spellcheck.alternativeTermCount">5</str>
<str name="spellcheck.maxResultsForSuggest">5</str> -->
<str name="spellcheck.collate">true</str>
<str name="spellcheck.collateExtendedResults">true</str>
<!-- <str name="spellcheck.maxCollationTries">10</str>
<str name="spellcheck.maxCollations">5</str> -->
</lst>
<arr name="last-components">
<str>spellerror</str>
</arr>
</requestHandler>
③solrj里的代码
/** * @method: testSpellCheck * @Description: 拼写检查 * * @author: ChenYW * @date 2014-4-15 下午06:14:56 */ public String spellCheck(String word){ SolrQuery query = new SolrQuery(); query.set("defType","edismax");//加权 query.set("qf","name^20.0"); query.set("spellcheck", "true"); query.set("spellcheck.q", word); query.set("qt", "/spell"); query.set("spellcheck.build", "true");//遇到新的检查词,会自动添加到索引里面 query.set("spellcheck.count", 5); try { QueryResponse rsp = server.query(query); SpellCheckResponse re=rsp.getSpellCheckResponse(); if (re != null) { if(!re.isCorrectlySpelled()){ String t = re.getFirstSuggestion(word);//获取第一个推荐词 System.out.println("推荐词:" + t); return t; } } } catch (SolrServerException e) { e.printStackTrace(); } return null; }
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