자바 키워드 전체 텍스트 검색 인 스 턴 스

package javaLucene;

import java.io.BufferedReader;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileReader;
import java.util.ArrayList;
import java.util.Date;
import java.util.List;

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.Store;
import org.apache.lucene.document.TextField;
import org.apache.lucene.index.DirectoryReader;
import org.apache.lucene.index.IndexWriter;
import org.apache.lucene.index.IndexWriterConfig;
import org.apache.lucene.queryparser.classic.QueryParser;
import org.apache.lucene.search.IndexSearcher;
import org.apache.lucene.search.Query;
import org.apache.lucene.search.ScoreDoc;
import org.apache.lucene.store.Directory;
import org.apache.lucene.store.FSDirectory;
import org.apache.lucene.util.Version;
import org.apache.poi.ss.usermodel.Cell;
import org.apache.poi.ss.usermodel.Sheet;
import org.apache.poi.ss.usermodel.Workbook;


public class TestLucene {
     private static TestLucene indexManager;
        private static String content="";

        private static String INDEX_DIR = "G:\\Unity3dziyuan";
        private static String DATA_DIR = "G:\\Unity3dziyuan";
        private static Analyzer analyzer = null;
        private static Directory directory = null;
        private static IndexWriter indexWriter = null;

        /**
         *        
         * @return          
         */
        public TestLucene getManager(){
            if(indexManager == null){
                this.indexManager = new TestLucene();
            }
            return indexManager;
        }
        /**
         *            
         * @param path       
         * @return     
         */
        public static boolean createIndex(String path){
            Date date1 = new Date();
            List fileList = getFileList(path);
            for (File file : fileList) {
                content = "";
                //      
                String type = file.getName().substring(file.getName().lastIndexOf(".")+1);
                if("txt".equalsIgnoreCase(type)){

                    content += txt2String(file);

                }else if("doc".equalsIgnoreCase(type)){

                    content += doc2String(file);

                }else if("xls".equalsIgnoreCase(type)){

                    content += xls2String(file);

                }

                System.out.println("name :"+file.getName());
                System.out.println("path :"+file.getPath());
//              System.out.println("content :"+content);
                System.out.println();


                try{
                    analyzer = new StandardAnalyzer(Version.LUCENE_CURRENT);
                    directory = FSDirectory.open(new File(INDEX_DIR));

                    File indexFile = new File(INDEX_DIR);
                    if (!indexFile.exists()) {
                        indexFile.mkdirs();
                    }
                    IndexWriterConfig config = new IndexWriterConfig(Version.LUCENE_CURRENT, analyzer);
                    indexWriter = new IndexWriter(directory, config);

                    Document document = new Document();
                    document.add(new TextField("filename", file.getName(), Store.YES));
                    document.add(new TextField("content", content, Store.YES));
                    document.add(new TextField("path", file.getPath(), Store.YES));
                    indexWriter.addDocument(document);
                    indexWriter.commit();
                    closeWriter();


                }catch(Exception e){
                    e.printStackTrace();
                }
                content = "";
            }
            Date date2 = new Date();
            System.out.println("    -----  ：" + (date2.getTime() - date1.getTime()) + "ms
");
            return true;
        }

        /**
         *   txt     
         * @param file          
         * @return       
         */
        public static String txt2String(File file){
            String result = "";
            try{
                BufferedReader br = new BufferedReader(new FileReader(file));//    BufferedReader      
                String s = null;
                while((s = br.readLine())!=null){//  readLine  ，     
                    result = result + "
" +s;
                }
                br.close();    
            }catch(Exception e){
                e.printStackTrace();
            }
            return result;
        }

        /**
         *   doc    
         * @param file          
         * @return       
         */
        public static String doc2String(File file){
            String result = "";
            try{
                FileInputStream fis = new FileInputStream(file);
                HWPFDocument doc = new HWPFDocument(fis);
                Range rang = doc.getRange();
                result += rang.text();
                fis.close();
            }catch(Exception e){
                e.printStackTrace();
            }
            return result;
        }

        /**
         *   xls    
         * @param file          
         * @return       
         */
        public static String xls2String(File file){
            String result = "";
            try{
                FileInputStream fis = new FileInputStream(file);   
                StringBuilder sb = new StringBuilder();   
                jxl.Workbook rwb = Workbook.getWorkbook(fis);   
                Sheet[] sheet = rwb.getSheets();   
                for (int i = 0; i < sheet.length; i++) {   
                    Sheet rs = rwb.getSheet(i);   
                    for (int j = 0; j < rs.getRows(); j++) {   
                       Cell[] cells = rs.getRow(j);   
                       for(int k=0;kcatch(Exception e){
                e.printStackTrace();
            }
            return result;
        }
        /**
         *     ，         
         * @param text       
         * @return        List
         */
        public static void searchIndex(String text){
            Date date1 = new Date();
            try{
                directory = FSDirectory.open(new File(INDEX_DIR));
                analyzer = new StandardAnalyzer(Version.LUCENE_CURRENT);
                DirectoryReader ireader = DirectoryReader.open(directory);
                IndexSearcher isearcher = new IndexSearcher(ireader);

                QueryParser parser = new QueryParser(Version.LUCENE_CURRENT, "content", analyzer);
                Query query = parser.parse(text);

                ScoreDoc[] hits = isearcher.search(query, null, 1000).scoreDocs;

                for (int i = 0; i < hits.length; i++) {
                    Document hitDoc = isearcher.doc(hits[i].doc);
                    System.out.println("____________________________");
                    System.out.println(hitDoc.get("filename"));
                    System.out.println(hitDoc.get("content"));
                    System.out.println(hitDoc.get("path"));
                    System.out.println("____________________________");
                }
                ireader.close();
                directory.close();
            }catch(Exception e){
                e.printStackTrace();
            }
            Date date2 = new Date();
            System.out.println("    -----  ：" + (date2.getTime() - date1.getTime()) + "ms
");
        }
        /**
         *         
         * @param dirPath          
         * @return     list
         */
        public static List getFileList(String dirPath) {
            File[] files = new File(dirPath).listFiles();
            List fileList = new ArrayList();
            for (File file : files) {
                if (isTxtFile(file.getName())) {
                    fileList.add(file);
                }
            }
            return fileList;
        }
        /**
         *          ，    txt xls doc  
         * @param fileName     
         * @return              ，  true；    false
         */
        public static boolean isTxtFile(String fileName) {
            if (fileName.lastIndexOf(".txt") > 0) {
                return true;
            }else if (fileName.lastIndexOf(".xls") > 0) {
                return true;
            }else if (fileName.lastIndexOf(".doc") > 0) {
                return true;
            }
            return false;
        }

        public static void closeWriter() throws Exception {
            if (indexWriter != null) {
                indexWriter.close();
            }
        }
        /**
         *             
         * @param file         
         * @return     ，  true.
         */
        public static boolean deleteDir(File file){
            if(file.isDirectory()){
                File[] files = file.listFiles();
                for(int i=0; ireturn true;
        }
        public static void main(String[] args){
            //File fileIndex = new File(INDEX_DIR);
            /*if(deleteDir(fileIndex)){
                fileIndex.mkdir();
            }else{
                fileIndex.mkdir();
            }*/

            createIndex(DATA_DIR);
            searchIndex("man");
        }
}