doc,docx,pdf,ppt等文件类型读取方法

爱被打了一巴掌 2022-06-04 00:57 222阅读 0赞

//读取ppt文件
        public String readPPT(String file) throws IOException {
            String re="";
            InputStream is = null;
            try{
                is = new FileInputStream(new File(file));
                PowerPointExtractor extractor = new PowerPointExtractor(is);
                re = extractor.getText();
            }catch(Exception e){
                System.out.println("读取ppt出错"+e.toString());
            }finally {
                is.close();
            }
            return re;
        }
    
        //读取pptx文件
        public String readPPT2007(String file) throws IOException {
            OPCPackage opc = null;
            String re = "";
            try{
                opc = POIXMLDocument.openPackage(file);
                re = new XSLFPowerPointExtractor(opc).getText();
            } catch (Exception e) {
                System.out.println("读取pptx出错"+e.toString());
            }finally {
                opc.close();
            }
            return  re;
        }
    
        // 读取pdf文件
        public String readPDF(String file) throws IOException {
            String result = null;
            FileInputStream is = null;
            PDDocument document = null;
            try{
                is = new FileInputStream(file);
                PDFParser parser = new PDFParser(is);
                parser.parse();
                document = parser.getPDDocument();
                PDFTextStripper stripper = new PDFTextStripper();
                result = stripper.getText(document);
            } catch (Exception e) {
                e.printStackTrace();
            }finally {
                if(is != null){
                    is.close();
                }
                if (document != null){
                    document.close();
                }
            }
            return result;
        }
    
        // 读取doc文件
        public String readWord(String file){
            String result ="";
            WordExtractor wordExtractor = null;
            try{
                wordExtractor = new WordExtractor(new FileInputStream(file));
                result = wordExtractor.getText();
            } catch (FileNotFoundException e) {
                e.printStackTrace();
            } catch (IOException e) {
                e.printStackTrace();
            }
            return result;
        }
    
        // 读取docx文件
        public String readDocx(String file) throws IOException {
            String result = "";
            OPCPackage opc = null;
            try{
                opc = POIXMLDocument.openPackage(file);
                result = new XWPFWordExtractor(opc).getText();
            } catch (Exception e) {
                e.printStackTrace();
            }finally {
                opc.close();
            }
            return result;
        }
    
        // 读取xls文件
        public String readEXCEL(String file){
            StringBuilder content = new StringBuilder();
            HSSFWorkbook workbook = null;
            try{
                workbook = new HSSFWorkbook(new FileInputStream(file));
                for(int numSheets = 0;numSheets <workbook.getNumberOfSheets();numSheets++){
                    if(null != workbook.getSheetAt(numSheets)){
                        HSSFSheet sheet = workbook.getSheetAt(numSheets);
                        for(int rowNumOfSheet  = 0;rowNumOfSheet <= sheet.getLastRowNum();rowNumOfSheet++ ){
                            HSSFRow row = sheet.getRow(rowNumOfSheet);
                            for (short cellNumOfRow = 0; cellNumOfRow <=row.getLastCellNum();cellNumOfRow ++){
                                HSSFCell cell = row.getCell(cellNumOfRow);
                                if(this.convertCellHSSFCell(cell).length() > 0){
                                    content.append(this.convertCellHSSFCell(cell));
                                }
                            }
                            content.append("\n");
                        }
                    }
                }
            } catch (Exception e) {
                e.printStackTrace();
            }
            return content.toString();
        }
    
        private String convertCellHSSFCell(HSSFCell cell){
            NumberFormat format = NumberFormat.getInstance();
            format.setGroupingUsed(false);
            String cellValue = "";
            if(cell == null){
                return cellValue;
            }
            switch (cell.getCellType()){
                case HSSFCell.CELL_TYPE_NUMERIC:
                    cellValue = format.format(cell.getNumericCellValue());
                    break;
                case HSSFCell.CELL_TYPE_STRING:
                    cellValue = cell.getStringCellValue();
                    break;
                case HSSFCell.CELL_TYPE_BLANK:
                    cellValue = cell.getStringCellValue();
                    break;
                case HSSFCell.CELL_TYPE_BOOLEAN:
                    cellValue = Boolean.valueOf(cell.getBooleanCellValue()).toString();
                    break;
                case HSSFCell.CELL_TYPE_ERROR:
                    cellValue = String.valueOf(cell.getErrorCellValue());
                    break;
                default:
                    cellValue = "";
            }
            return cellValue.trim();
        }
    
        // 读取xlsx文件
        public String readEXCEL2007(String file) throws IOException {
            XSSFWorkbook workbook=null;
            StringBuilder content = new StringBuilder();
            try{
                workbook = new XSSFWorkbook(file);
                for (int numSheets = 0; numSheets < workbook.getNumberOfSheets(); numSheets++) {
                    if (null != workbook.getSheetAt(numSheets)) {
                        XSSFSheet aSheet = workbook.getSheetAt(numSheets);// 获得一个sheet
                        for (int rowNumOfSheet = 0; rowNumOfSheet <= aSheet.getLastRowNum(); rowNumOfSheet++) {
                            if (null != aSheet.getRow(rowNumOfSheet)) {
                                XSSFRow aRow = aSheet.getRow(rowNumOfSheet); // 获得一个行
                                for (short cellNumOfRow = 0; cellNumOfRow <= aRow.getLastCellNum(); cellNumOfRow++) {
                                    if (null != aRow.getCell(cellNumOfRow)) {
                                        XSSFCell aCell = aRow.getCell(cellNumOfRow);// 获得列值
                                        if (this.convertCellXHSSFCell(aCell).length() > 0) {
                                            content.append(this.convertCellXHSSFCell(aCell));
                                        }
                                    }
                                    content.append("\n");
                                }
                            }
                        }
                    }
                }
            }
            catch(Exception ex){
                System.out.println("读取excel出错"+ex.toString());
            }
            return content.toString();
        }
    
    
        private String convertCellXHSSFCell(XSSFCell aCell) {
            NumberFormat formater = NumberFormat.getInstance();
            formater.setGroupingUsed(false);
            String cellValue = "";
            if (aCell == null) {
                return cellValue;
            }
            switch (aCell.getCellType()) {
                case HSSFCell.CELL_TYPE_NUMERIC:
                    cellValue = formater.format(aCell.getNumericCellValue());
                    break;
                case HSSFCell.CELL_TYPE_STRING:
                    cellValue = aCell.getStringCellValue();
                    break;
                case HSSFCell.CELL_TYPE_BLANK:
                    cellValue = aCell.getStringCellValue();
                    break;
                case HSSFCell.CELL_TYPE_BOOLEAN:
                    cellValue = Boolean.valueOf(aCell.getBooleanCellValue()).toString();
                    break;
                case HSSFCell.CELL_TYPE_ERROR:
                    cellValue = String.valueOf(aCell.getErrorCellValue());
                    break;
                default:
                    cellValue = "";
            }
            return cellValue.trim();
        }

所需jar包的maven坐标 ：

<dependency>
                <groupId>org.apache.poi</groupId>
                <artifactId>poi</artifactId>
                <version>3.9</version>
            </dependency>
            <dependency>
                <groupId>org.apache.poi</groupId>
                <artifactId>poi-ooxml</artifactId>
                <version>3.9</version>
            </dependency>
            <dependency>
                <groupId>fr.opensagres.xdocreport</groupId>
           <artifactId>org.apache.poi.xwpf.converter.pdf</artifactId>
                <version>1.0.6</version>
            </dependency>
    
            <dependency>
                <groupId>fr.opensagres.xdocreport</groupId>
                <artifactId>org.apache.poi.xwpf.converter.core</artifactId>
                <version>1.0.6</version>
            </dependency>
    
            <dependency>
                <groupId>org.apache.directory.studio</groupId>
                <artifactId>org.apache.commons.collections</artifactId>
                <version>3.2.1</version>
            </dependency>
    
            <dependency>
                <groupId>fr.opensagres.xdocreport</groupId>
                <artifactId>org.apache.poi.xwpf.converter.core</artifactId>
                <version>1.0.5</version>
            </dependency>
    
            <dependency>
                <groupId>fr.opensagres.xdocreport</groupId>
                <artifactId>org.apache.poi.xwpf.converter.pdf</artifactId>
                <version>1.0.5</version>
            </dependency>
    
            <dependency>
                <groupId>fr.opensagres.xdocreport</groupId>
                <artifactId>org.apache.poi.xwpf.converter.xhtml</artifactId>
                <version>1.0.5</version>
            </dependency>
    
            <dependency>
                <groupId>org.apache.pdfbox</groupId>
                <artifactId>pdfbox</artifactId>
                <version>1.8.13</version>
            </dependency>
    
            <dependency>
                <groupId>org.apache.pdfbox</groupId>
                <artifactId>pdfbox-tools</artifactId>
                <version>2.0.8</version>
            </dependency>