RAM Storage in Lucene

Package Com.fxr.demo3;import Java.io.ioexception;import Org.apache.lucene.analysis.analyzer;import Org.apache.lucene.analysis.standard.standardanalyzer;import Org.apache.lucene.document.document;import Org.apache.lucene.document.field;import Org.apache.lucene.index.corruptindexexception;import Org.apache.lucene.index.indexwriter;import Org.apache.lucene.index.term;import Org.apache.lucene.search.indexsearcher;import Org.apache.lucene.search.scoredoc;import Org.apache.lucene.search.termquery;import Org.apache.lucene.search.topdocs;import Org.apache.lucene.store.directory;import Org.apache.lucene.store.fsdirectory;import    Org.apache.lucene.store.ramdirectory;public class Testramsearcher {Directory directory=new ramdirectory (); public void Creatramindex () throws ioexception{String [] ids={"1", "2", "3", "4"}; String [] names={"Zhangsan", "Lisi", "Wangwu", "Zhaoliu"}; String [] addresses={"tianjing", "Nanjing", "Beijing", "Nanning"}; String [] birthdays={"19820720", "19840203", "19770409", "19830130 "}; Analyzer analyzer=new StandardAnalyzer ();//true indicates that the current index is created or overwritten; false means that the current index is appended//default value is 128IndexWriter writer= New IndexWriter (directory,analyzer,true,indexwriter.maxfieldlength.limited); for (int i=0;i<ids.length;i++) { Document Document=new document ();d Ocument.add (new Field ("id", ids[i],field.store.yes,field.index.analyzed)); Document.add (new Field ("Name", names[i],field.store.yes,field.index.analyzed));d Ocument.add ("Address", addresses[i],field.store.yes,field.index.analyzed));d Ocument.add (New Field ("Birthday", Birthdays[i],    field.store.yes,field.index.analyzed)); Writer.adddocument (document);}    Writer.optimize (); Writer.close ();        System.out.println ("OK");} public void Searchram () throws Corruptindexexception, ioexception{indexsearcher searcher=new indexsearcher (directory) ; Scoredoc [] hits=null; Term term=new term ("address", "Nanjing"); Termquery query=new Termquery (term); Topdocs topdocs=searcher.search (query, +); hits=topdocs.scoredocs;for (int i=0;i
 Another notation in Lucene: 
 
Package Com.fxr.demo3;import Java.io.ioexception;import Org.apache.lucene.analysis.analyzer;import Org.apache.lucene.analysis.standard.standardanalyzer;import Org.apache.lucene.document.document;import Org.apache.lucene.index.term;import Org.apache.lucene.search.indexsearcher;import Org.apache.lucene.search.scoredoc;import Org.apache.lucene.search.termquery;import Org.apache.lucene.search.topdoccollector;import Org.apache.lucene.store.directory;import Org.apache.lucene.store.fsdirectory;public class Testtopdoccollectller {public static void main (string[] args) throws IOException {Analyzer Analyzer = new StandardAnalyzer (); String Indexdir = "F:/lucenefxrindex";D irectory dir=fsdirectory.getdirectory (indexdir);//location of index storage Indexsearcher Indexsearcher = new Indexsearcher (dir); Scoredoc[]hits = null; Topdoccollector topdoccollector = new Topdoccollector (10); Term term = new term ("address", "Zhengzhou"); Termquery query = new Termquery (term); Indexsearcher.search (query,topdoccollector); hits = TopdoccoLlector.topdocs (). scoredocs;for (int i=0;i
　　
RAM Storage in Lucene