lucene4中有一些方法有很大的变动，以下代码可以看看与3的区别，

下面代码中解释

1. File2DocumentUtils类就不上传了，就是将File转换成lucene中的Document，如果需要运行的话再贴出来
2. lucene包用的是4.1.0
3. 分词器用了IKAnalyzer和lucene标准的分词器StandardAnalyzer
4. 简单的一些查询都有@test可以直接junit

package helloworld;import java.io.File;import java.io.IOException;import java.io.StringReader;import org.apache.lucene.analysis.Analyzer;import org.apache.lucene.analysis.TokenStream;import org.apache.lucene.analysis.standard.StandardAnalyzer;import org.apache.lucene.analysis.tokenattributes.CharTermAttribute;import org.apache.lucene.analysis.tokenattributes.TypeAttribute;import org.apache.lucene.document.Document;import org.apache.lucene.document.Field;import org.apache.lucene.document.Field.Index;import org.apache.lucene.document.Field.Store;import org.apache.lucene.index.DirectoryReader;import org.apache.lucene.index.IndexReader;import org.apache.lucene.index.IndexWriter;import org.apache.lucene.index.IndexWriterConfig;import org.apache.lucene.index.Term;import org.apache.lucene.queryparser.classic.MultiFieldQueryParser;import org.apache.lucene.queryparser.classic.QueryParser;import org.apache.lucene.search.BooleanClause.Occur;import org.apache.lucene.search.BooleanQuery;import org.apache.lucene.search.IndexSearcher;import org.apache.lucene.search.NumericRangeQuery;import org.apache.lucene.search.PhraseQuery;import org.apache.lucene.search.Query;import org.apache.lucene.search.ScoreDoc;import org.apache.lucene.search.TermQuery;import org.apache.lucene.search.TopDocs;import org.apache.lucene.search.WildcardQuery;import org.apache.lucene.search.highlight.Formatter;import org.apache.lucene.search.highlight.Fragmenter;import org.apache.lucene.search.highlight.Highlighter;import org.apache.lucene.search.highlight.QueryScorer;import org.apache.lucene.search.highlight.Scorer;import org.apache.lucene.search.highlight.SimpleFragmenter;import org.apache.lucene.search.highlight.SimpleHTMLFormatter;import org.apache.lucene.store.Directory;import org.apache.lucene.store.FSDirectory;import org.apache.lucene.util.Version;import org.junit.Test;import org.wltea.analyzer.lucene.IKAnalyzer;import utils.File2DocumentUtils;public class HelloWorld {	String filePath1 = "C:\\Users\\Administrator.chaney-pc\\workspace\\luceneDemo\\luceneDatasource\\README.txt";	String filePath2 = "C:\\Users\\Administrator.chaney-pc\\workspace\\luceneDemo\\luceneDatasource\\Copy of README.txt";	File indexFile = new File("C:\\Users\\Administrator.chaney-pc\\workspace\\luceneDemo\\luceneIndex");	Analyzer analyzer = new StandardAnalyzer(Version.LUCENE_41);	// Analyzer analyzer = new CJKAnalyzer(Version.LUCENE_41);	@Test	public void createIndex() throws IOException {		Directory indexPath = FSDirectory.open(indexFile);		Document document1 = File2DocumentUtils.file2Document(filePath1);		Document document2 = File2DocumentUtils.file2Document(filePath2);		IndexWriterConfig indexWriterConfig = new IndexWriterConfig(Version.LUCENE_41, analyzer);		IndexWriter indexWriter = new IndexWriter(indexPath, indexWriterConfig);		indexWriter.addDocument(document1);		indexWriter.addDocument(document2);		indexWriter.close();		indexPath.close();	}	public void search(Query query) throws Exception {		Directory directory = FSDirectory.open(indexFile);		IndexReader indexReader = DirectoryReader.open(directory);		IndexSearcher indexSearcher = new IndexSearcher(indexReader);		Formatter formatter = new SimpleHTMLFormatter("", "");		Scorer fragmentScorer = new QueryScorer(query);		Highlighter highlighter = new Highlighter(formatter, fragmentScorer);		Fragmenter fragmenter = new SimpleFragmenter(100);		highlighter.setTextFragmenter(fragmenter);		TopDocs topDocs = indexSearcher.search(query, 1000);		// List
    
      documents = new ArrayList
     
      ();		System.out.println("搜索到的总数：" + topDocs.totalHits);		for (ScoreDoc scoreDoc : topDocs.scoreDocs) {			int docID = scoreDoc.doc;			Document document = indexSearcher.doc(docID);			String hc = highlighter.getBestFragment(analyzer, "content", document.get("content"));			if (hc != null) {				document.removeField("content");				document.add(new Field("content", hc, Store.YES, Index.ANALYZED));			}			File2DocumentUtils.printDocumentInfo(document);		}		indexReader.close();		directory.close();	}	@Test	public void search() throws Exception {		String[] fields = { "name", "content" };		QueryParser queryParser = new MultiFieldQueryParser(Version.LUCENE_41, fields, analyzer);		Query query = queryParser.parse("Introduction");		search(query);	}	@Test	public void testTerm() throws Exception {		Term t = new Term("content", "introduction");		Query query = new TermQuery(t);		search(query);	}	@Test	public void testRange() throws Exception {		// Term t = new Term("content", "read");		Query query = NumericRangeQuery.newLongRange("size", Long.valueOf(400), Long.valueOf(1000), true, true);		search(query);	}		@Test	public void testWildcardQuery() throws Exception {		// Term t = new Term("content", "read");		Term term = new Term("content", "luc?");		Query query = new WildcardQuery(term);		search(query);	}		@Test	public void testBooleanQuery() throws Exception {		// Term t = new Term("content", "read");		Query query1 = NumericRangeQuery.newLongRange("size", Long.valueOf(400), Long.valueOf(1000), true, true);		Term term = new Term("content", "luc*");		Query query2 = new WildcardQuery(term);		BooleanQuery booleanQuery = new BooleanQuery();		booleanQuery.add(query1, Occur.MUST_NOT);		booleanQuery.add(query2, Occur.MUST);		search(booleanQuery);	}		@Test	public void testPhraseQuery() throws Exception {		// Term t = new Term("content", "read");		Term term1 = new Term("content", "main");		Term term2 = new Term("content", "page");		PhraseQuery query = new PhraseQuery();		query.add(term1);		query.add(term2);		query.setSlop(1);		search(query);	}			@Test	public void testAnalyzer() throws Exception {		String string = "我是一个中国人  sdjfkajsdfjak ";		Analyzer analyzer = new IKAnalyzer();		TokenStream tokenStream = analyzer.tokenStream("content", new StringReader(string));		CharTermAttribute termAtt = (CharTermAttribute) tokenStream.getAttribute(CharTermAttribute.class);		TypeAttribute typeAtt = (TypeAttribute) tokenStream.getAttribute(TypeAttribute.class);		tokenStream.reset();		while (tokenStream.incrementToken()) {			System.out.print("["+termAtt.toString()+"]");			System.out.println(typeAtt.type());		}		// System.out.println(tokenStream.toString());	}}