Lucene搜索匹配词组中的任何单词 [英] Lucene search match any word at phrase

问题描述

我想搜索包含许多单词的字符串，并检索与其中任何一个匹配的文档.我的索引方法是:

i wanna search a string with lots of words, and retrieves documents that matches with any of them. My indexing method is the folowing:

 Document document = new Document();
 document.add(new TextField("termos", text, Field.Store.YES));
 document.add(new TextField("docNumber",fileNumber,Field.Store.YES));

 config = new IndexWriterConfig(analyzer);
 Analyzer analyzer = CustomAnalyzer.builder()
            .withTokenizer("standard")
            .addTokenFilter("lowercase")
            .addTokenFilter("stop")
            .addTokenFilter("porterstem")
            .addTokenFilter("capitalization")
            .build();
 config = IndexWriterConfig(analyzer);
 writer = new IndexWriter(indexDirectory, config);
 writer.addDocument(document);
 writer.commit();

这是我的搜索方法.我不想寻找特定的词组，但是其中的任何单词.用于搜索的分析器与用于索引的分析器相同.

And here is my search method. I dont wanna look for specific phrase, but any of word in that. The analyzer for search is the same that for index.

Query query = new QueryBuilder(analyzer).createPhraseQuery("termos","THE_PHRASE");
String indexDir = rootProjectFolder + "/indexDir/";
IndexReader reader = DirectoryReader.open(indexDir);
IndexSearcher searcher = new IndexSearcher(reader);
TopScoreDocCollector collector = TopScoreDocCollector.create(1000,1000);
searcher.search(query,collector);

我是Lucene的新手.有人可以帮助我吗?

Im new on Lucene. Someone can help me?

推荐答案

使用createPhraseQuery("termos", "list of words")将精确地尝试将短语单词列表"与短语坡度0匹配.

Using createPhraseQuery("termos", "list of words") will precisely try to match the phrase "list of words" with a phrase slop of 0.

如果要在单词列表中匹配任何术语，则可以使用

If you want to match any term in a list of words, you can use createBooleanQuery :

new QueryBuilder(analyzer).createBooleanQuery("termos", terms, BooleanClause.Occur.SHOULD);

或者，您也可以使用

As an alternative, you can also use createMinShouldMatchQuery() so that you can require a fraction of the number of query terms to match, eg. to match at least 10 percent of the terms :

new QueryBuilder(analyzer).createMinShouldMatchQuery("termos", terms, 0.1f));

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