package demo;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 jxl.Cell;import jxl.Sheet;import jxl.Workbook;import org.apache.lucene.analysis.Analyzer;import org.apache.lucene.analysis.standard.StandardAnalyzer;import org.apache.lucene.document.Document;import org.apache.lucene.document.TextField;import org.apache.lucene.document.Field.Store;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.hwpf.HWPFDocument;import org.apache.poi.hwpf.usermodel.Range;import org.springframework.stereotype.Controller;import org.springframework.web.bind.annotation.RequestMapping;import org.springframework.web.bind.annotation.ResponseBody;/** * @author xinghl * */@Controller@RequestMapping("/luceneController")public class luceneController{    private static String content="";        private static String INDEX_DIR = "D:\\luceneIndex";    private static String DATA_DIR = "D:\\luceneData";    private static Analyzer analyzer = null;    private static Directory directory = null;    private static IndexWriter indexWriter = null;           * 创建当前文件目录的索引     * @param path 当前文件目录     * @return 是否成功     */    @SuppressWarnings({ "deprecation" })    public static boolean createIndex(String path){        Date date1 = new Date();        List<File> fileList = getFileList(path);        for (File file : fileList) {            content = "";            //获取文件后缀            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();                                    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("创建索引-----耗时：" + (date2.getTime() - date1.getTime()) + "ms\n");        return true;    }        /**     * 读取txt文件的内容     * @param file 想要读取的文件对象     * @return 返回文件内容     */    public static String txt2String(File file){        String result = "";        try{            BufferedReader br = new BufferedReader(new FileReader(file));//构造一个BufferedReader类来读取文件            String s = null;            while((s = br.readLine())!=null){//使用readLine方法，一次读一行                result = result + "\n" +s;            }            br.close();            }catch(Exception e){            e.printStackTrace();        }        return result;    }        /**     * 读取doc文件内容     * @param file 想要读取的文件对象     * @return 返回文件内容     */    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;    }        /**     * 读取xls文件内容     * @param file 想要读取的文件对象     * @return 返回文件内容     */    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;k<cells.length;k++)                      sb.append(cells[k].getContents());                   }               }               fis.close();               result += sb.toString();        }catch(Exception e){            e.printStackTrace();        }        return result;    }    /**     * 查找索引，返回符合条件的文件     * @param text 查找的字符串     * @return 符合条件的文件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); //DATA_DIR目录下为空时，这里会报异常并被捕获            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("查看索引-----耗时：" + (date2.getTime() - date1.getTime()) + "ms\n");    }    /**     * 过滤目录下的文件     * @param dirPath 想要获取文件的目录     * @return 返回文件list     */    public static List<File> getFileList(String dirPath) {        File[] files = new File(dirPath).listFiles();        List<File> fileList = new ArrayList<File>();        for (File file : files) {            if (isTxtFile(file.getName())) {                fileList.add(file);            }        }        return fileList;    }    /**     * 判断是否为目标文件，目前支持txt xls doc格式     * @param fileName 文件名称     * @return 如果是文件类型满足过滤条件，返回true；否则返回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();        }    }    /**     * 删除文件目录下的所有文件     * @param file 要删除的文件目录     * @return 如果成功，返回true.     */    public static boolean deleteDir(File file){        if(file.isDirectory()){            File[] files = file.listFiles();            for(int i=0; i<files.length; i++){                deleteDir(files[i]);            }        }        file.delete();        return true;    }        @RequestMapping(params="test")    @ResponseBody    public String main(String value){   //value为前端传过来的要查询的字符串        File fileIndex = new File(INDEX_DIR);        if(deleteDir(fileIndex)){            fileIndex.mkdir();        }else{            fileIndex.mkdir();        }                createIndex(DATA_DIR);        searchIndex(value);        return "success";    }}

<body>     <form id="testform" method="post" action="luceneController.do?test">        <button id="one">点我开始测试</button>        <input type="text" name="value"/>    </form>  </body>  <script type="text/javascript"> 　　 $("#one").live("click",function(){     　　 $("#testform").submit(); 　　 });  </script>