关于lucene处理word、excel、ppt、txt、pdf等格式文件

关于lucene处理word、excel、ppt、txt、pdf等格式文件的代码如下： 

public class ReadFile {

    /**
     * 处理word2003
     * @param path
     * @return
     * @throws Exception
     */
    public static String readWord(String path) throws Exception {
        String bodyText = null;
        InputStream inputStream = new FileInputStream(path);
        WordExtractor extractor = new WordExtractor(inputStream);
        bodyText = extractor.getText();
        return bodyText;
    }

    /**
     * 处理word2007
     * @param path
     * @return
     * @throws IOException
     * @throws OpenXML4JException
     * @throws XmlException
     */
    public static String readWord2007(String path) throws IOException, OpenXML4JException, XmlException {
        OPCPackage opcPackage = POIXMLDocument.openPackage(path);
        POIXMLTextExtractor ex = new XWPFWordExtractor(opcPackage);
        return ex.getText();
    }
    /**
     * 处理excel2003
     * @param path
     * @return
     * @throws IOException
     */
    public static String ReadExcel(String path) throws IOException {
        InputStream inputStream = null;
        String content = null;
        try {
            inputStream = new FileInputStream(path);
            HSSFWorkbook wb = new HSSFWorkbook(inputStream);
            ExcelExtractor extractor = new ExcelExtractor(wb);
            extractor.setFormulasNotResults(true);
            extractor.setIncludeSheetNames(false);
            content = extractor.getText();
        } catch (FileNotFoundException e) {
            e.printStackTrace();
        }
        return content;
    }
    /**
     * 处理excel2007
     * @param path
     * @return
     * @throws IOException
     */
    public static String readExcel2007(String path) throws IOException {
        StringBuffer content = new StringBuffer();
        // 构造 XSSFWorkbook 对象，strPath 传入文件路径
        XSSFWorkbook xwb = new XSSFWorkbook(path);
        // 循环工作表Sheet
        for (int numSheet = 0; numSheet < xwb.getNumberOfSheets(); numSheet++) {
            XSSFSheet xSheet = xwb.getSheetAt(numSheet);
            if (xSheet == null) {
                continue;
            }
            // 循环行Row
            for (int rowNum = 0; rowNum <= xSheet.getLastRowNum(); rowNum++) {
                XSSFRow xRow = xSheet.getRow(rowNum);
                if (xRow == null) {
                    continue;
                }
                // 循环列Cell
                for (int cellNum = 0; cellNum <= xRow.getLastCellNum(); cellNum++) {
                    XSSFCell xCell = xRow.getCell(cellNum);
                    if (xCell == null) {
                        continue;
                    }
                    if (xCell.getCellType() == XSSFCell.CELL_TYPE_BOOLEAN) {
                        content.append(xCell.getBooleanCellValue());
                    } else if (xCell.getCellType() == XSSFCell.CELL_TYPE_NUMERIC) {
                        content.append(xCell.getNumericCellValue());
                    } else {
                        content.append(xCell.getStringCellValue());
                    }
                }
            }
        }

        return content.toString();
    }
    /**
     * 处理ppt
     * @param path
     * @return
     */
    public static String readPowerPoint(String path) {
        StringBuffer content = new StringBuffer("");
        InputStream inputStream = null;
        try {
            inputStream = new FileInputStream(path);
            SlideShow ss = new SlideShow(new HSLFSlideShow(new FileInputStream(path)));// is
            // 为文件的InputStream，建立SlideShow
            Slide[] slides = ss.getSlides();// 获得每一张幻灯片
            for (int i = 0; i < slides.length; i++) {
                TextRun[] t = slides[i].getTextRuns();// 为了取得幻灯片的文字内容，建立TextRun
                for (int j = 0; j < t.length; j++) {
                    content.append(t[j].getText());// 这里会将文字内容加到content中去
                }
            }
        } catch (Exception ex) {
            System.out.println(ex.toString());
        }
        return content.toString();
    }
    /**
     * 处理pdf
     * @param path
     * @return
     * @throws IOException
     */
    public static String readPdf(String path) throws IOException {
        StringBuffer content = new StringBuffer("");// 文档内容
        PDDocument pdfDocument = null;
        try {
            FileInputStream fis = new FileInputStream(path);
            PDFTextStripper stripper = new PDFTextStripper();
            pdfDocument = PDDocument.load(fis);
            StringWriter writer = new StringWriter();
            stripper.writeText(pdfDocument, writer);
            content.append(writer.getBuffer().toString());
            fis.close();
        } catch (java.io.IOException e) {
            System.err.println("IOException=" + e);
            System.exit(1);
        } finally {
            if (pdfDocument != null) {
                org.pdfbox.cos.COSDocument cos = pdfDocument.getDocument();
                cos.close();
                pdfDocument.close();
            }
        }

        return content.toString();

    }
    /**
     * 处理txt
     * @param path
     * @return
     * @throws IOException
     */
    public static String readTxt(String path) throws IOException {
        StringBuffer sb = new StringBuffer("");
        InputStream is = new FileInputStream(path);
        // 必须设置成GBK，否则将出现乱码
        BufferedReader reader = new BufferedReader(new InputStreamReader(is, "GBK"));
        try {
            String line = "";
            while ((line = reader.readLine()) != null) {
                sb.append(line + "\r");
            }
        } catch (FileNotFoundException e) {
            e.printStackTrace();
        }
        return sb.toString().trim();
    }

}

使用jar包如下：