1、遍历workbook
代码
-
- POIFSFileSystem fs = new POIFSFileSystem(new FileInputStream(filePath));
- HSSFWorkbook wb = new HSSFWorkbook(fs);
- for (int i = 0; i < wb.getNumberOfSheets(); i++) {
- HSSFSheet sheet = wb.getSheetAt(i);
- for (int i = sheet.getFirstRowNum(); i < sheet.getLastRowNum(); i ++) {
- HSSFRow row = sheet.getRow(i);
- if (row != null) {
- 。。。操作}
- }
- }
-
- FileOutputStream fos = new FileOutputStream(objectPath);
-
- swb.write(fos);
- fos.close();
2、得到列和单元格
代码
- HSSFRow row = sheet.getRow(i);
- HSSFCell cell = row.getCell((short) j);
3、设置sheet名称和单元格内容为中文
代码
- wb.setSheetName(n, "中文",HSSFCell.ENCODING_UTF_16);
- cell.setEncoding((short) 1);
- cell.setCellValue("中文");
4、单元格内容未公式或数值,可以这样读写
代码
- cell.setCellType(HSSFCell.CELL_TYPE_NUMERIC);
- cell.getNumericCellValue()
5、设置列宽、行高
代码
- sheet.setColumnWidth((short)column,(short)width);
- row.setHeight((short)height);
6、添加区域,合并单元格
代码
- Region region = new Region((short)rowFrom,(short)columnFrom,(short)rowTo,(short)columnTo);
- sheet.addMergedRegion(region);
-
- sheet.getNumMergedRegions()
7、常用方法
根据单元格不同属性返回字符串数值
代码
- public String getCellStringValue(HSSFCell cell) {
- String cellValue = "";
- switch (cell.getCellType()) {
- case HSSFCell.CELL_TYPE_STRING:
- cellValue = cell.getStringCellValue();
- if(cellValue.trim().equals("")||cellValue.trim().length()<=0)
- cellValue=" ";
- break;
- case HSSFCell.CELL_TYPE_NUMERIC:
- cellValue = String.valueOf(cell.getNumericCellValue());
- break;
- case HSSFCell.CELL_TYPE_FORMULA:
- cell.setCellType(HSSFCell.CELL_TYPE_NUMERIC);
- cellValue = String.valueOf(cell.getNumericCellValue());
- break;
- case HSSFCell.CELL_TYPE_BLANK:
- cellValue=" ";
- break;
- case HSSFCell.CELL_TYPE_BOOLEAN:
- break;
- case HSSFCell.CELL_TYPE_ERROR:
- break;
- default:
- break;
- }
- return cellValue;
- }
8、常用单元格边框格式
虚线HSSFCellStyle.BORDER_DOTTED
实线HSSFCellStyle.BORDER_THIN
代码
- public static HSSFCellStyle getCellStyle(short type)
- {
- HSSFWorkbook wb = new HSSFWorkbook();
- HSSFCellStyle style = wb.createCellStyle();
- style.setBorderBottom(type);
- style.setBorderLeft(type);
- style.setBorderRight(type);
- style.setBorderTop(type);
- return style;
- }
9、设置字体和内容位置
代码
- HSSFFont f = wb.createFont();
- f.setFontHeightInPoints((short) 11);
- f.setBoldweight(HSSFFont.BOLDWEIGHT_NORMAL);
- style.setFont(f);
- style.setAlignment(HSSFCellStyle.ALIGN_CENTER);
- style.setVerticalAlignment(HSSFCellStyle.VERTICAL_CENTER);
- style.setRotation(short rotation);
- HSSFDataFormat df = wb.createDataFormat();
- style1.setDataFormat(df.getFormat("0.00%"));
- cell.setCellFormula(string);
- style.setRotation(short rotation);
- cell.setCellStyle(style);
10、插入图片
论坛里看到的
代码
-
- ByteArrayOutputStream byteArrayOut = new ByteArrayOutputStream();
- BufferedImage bufferImg = ImageIO.read(new File("ok.jpg"));
- ImageIO.write(bufferImg,"jpg",byteArrayOut);
-
- FileInputStream fos = new FileInputStream(filePathName+"/stencil.xlt");
- fs = new POIFSFileSystem(fos);
-
- HSSFWorkbook wb = new HSSFWorkbook(fs);
- HSSFSheet sheet = wb.getSheetAt(0);
- HSSFPatriarch patriarch = sheet.createDrawingPatriarch();
- HSSFClientAnchor anchor = new HSSFClientAnchor(0,0,1023,255,(short) 0,0,(short)10,10);
- patriarch.createPicture(anchor , wb.addPicture(byteArrayOut.toByteArray(),HSSFWorkbook.PICTURE_TYPE_JPEG));
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