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POLucene full-text search
 

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  1. POLucene full-text search
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    <p>I am using Lucene 3.3.0 with java. I am facing the following problem and don know if there exits a solution for it.</p> <p>I index the following text: "The boy played so hard to win the game" using StandardAnalyzer, and then i make a query search using "play" ... Lucene find hits ONLY when i use WildcardQuery builder.</p> <p>The problem is that when i try searching "boy game" it finds NO hits at all.</p> <p>Is there away to make Lucene make something like context searching to solve this problem ?</p> <p>Thanks, Samer</p> <pre><code>private static void addDoc(IndexWriter w, String value) throws IOException { Document doc = new Document(); doc.add(new Field("title", value, Field.Store.YES, Field.Index.ANALYZED)); w.addDocument(doc); } @SuppressWarnings("deprecation") public static void lucene(String args, String query) throws IOException, ParseException { // 0. Specify the analyzer for tokenizing text. // The same analyzer should be used for indexing and searching StandardAnalyzer analyzer = new StandardAnalyzer(Version.LUCENE_CURRENT); // 1. create the index Directory index = new RAMDirectory(); // the boolean arg in the IndexWriter ctor means to // create a new index, overwriting any existing index IndexWriter w = new IndexWriter(index, analyzer, true, IndexWriter.MaxFieldLength.UNLIMITED); String[] splitOnLinefeed = args.split("\n"); for (int i = 0; i &lt; splitOnLinefeed.length; i++) { addDoc(w, splitOnLinefeed[i]); } w.close(); // 2. query String querystr = query+"*"; // the "title" arg specifies the default field to use // when no field is explicitly specified in the query. Query q = new QueryParser(Version.LUCENE_CURRENT, "title", analyzer) .parse(querystr); // 3. search IndexSearcher searcher = new IndexSearcher(index, true); ScoreDoc[] hits = searcher.search(q, 100).scoreDocs; // 4. display results System.out.println("Found " + hits.length + " hit(s)."); for (int i = 0; i &lt; hits.length; ++i) { int docId = hits[i].doc; Document d = searcher.doc(docId); System.out.println((i + 1) + ". " + d.get("title")); } // searcher can only be closed when there // is no need to access the documents any more. searcher.close(); } public static void main(String[] args) throws Exception { lucene(parse("Test.pdf"), "boy game"); } </code></pre>
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    1. USSamer Makary
    1. USSamer Makary
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    1. COShow us your code, please.
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      1. USskaffman
    2. CO@Skaffman, I added the code, i using Tika to parse a PDF file that contains the data.
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      1. USSamer Makary
 

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