转载:POI操作Excel常用方法总结(2003的excel)
原文出处:http://blog.csdn.net/xjun15/article/details/5805429
EXCEL常用操作方法
1、 得到Excel常用对象
- POIFSFileSystem fs=newPOIFSFileSystem(new FileInputStream("d:/test.xls"));
- //得到Excel工作簿对象
- HSSFWorkbook wb = new HSSFWorkbook(fs);
- //得到Excel工作表对象
- HSSFSheet sheet = wb.getSheetAt(0);
- //得到Excel工作表的行
- HSSFRow row = sheet.getRow(i);
- //得到Excel工作表指定行的单元格
- HSSFCell cell = row.getCell((short) j);
- cellStyle = cell.getCellStyle();//得到单元格样式
2、建立Excel常用对象
- HSSFWorkbook wb = new HSSFWorkbook();//创建Excel工作簿对象
- HSSFSheet sheet = wb.createSheet("new sheet");//创建Excel工作表对象
- HSSFRow row = sheet.createRow((short)0); //创建Excel工作表的行
- cellStyle = wb.createCellStyle();//创建单元格样式
- row.createCell((short)0).setCellStyle(cellStyle); //创建Excel工作表指定行的单元格
- row.createCell((short)0).setCellValue(1); //设置Excel工作表的值
3、设置sheet名称和单元格内容
- wb.setSheetName(1, "第一张工作表",HSSFCell.ENCODING_UTF_16);
- cell.setEncoding((short) 1);
- cell.setCellValue("单元格内容");
4、取得sheet的数目
- wb.getNumberOfSheets()
5、 根据index取得sheet对象
- HSSFSheet sheet = wb.getSheetAt(0);
6、取得有效的行数
- int rowcount = sheet.getLastRowNum();
7、取得一行的有效单元格个数
- row.getLastCellNum();
- cell.setCellType(HSSFCell.CELL_TYPE_STRING); //设置单元格为STRING类型
- cell.getNumericCellValue();//读取为数值类型的单元格内容
- sheet.setColumnWidth((short)column,(short)width);
- row.setHeight((short)height);
- Region region = new Region((short)rowFrom,(short)columnFrom,(short)rowTo
- ,(short)columnTo);//合并从第rowFrom行columnFrom列
- sheet.addMergedRegion(region);// 到rowTo行columnTo的区域
- //得到所有区域
- sheet.getNumMergedRegions()
- FileOutputStream fileOut = new FileOutputStream(path);
- wb.write(fileOut);
- public String getCellStringValue(HSSFCell cell) {
- String cellValue = "";
- switch (cell.getCellType()) {
- case HSSFCell.CELL_TYPE_STRING://字符串类型
- cellValue = cell.getStringCellValue();
- if(cellValue.trim().equals("")||cellValue.trim().length()<=0)
- cellValue=" ";
- break;
- case HSSFCell.CELL_TYPE_NUMERIC: //数值类型
- cellValue = String.valueOf(cell.getNumericCellValue());
- break;
- case HSSFCell.CELL_TYPE_FORMULA: //公式
- 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;
- }
- HSSFCellStyle style = wb.createCellStyle();
- style.setBorderBottom(HSSFCellStyle.BORDER_DOTTED);//下边框
- style.setBorderLeft(HSSFCellStyle.BORDER_DOTTED);//左边框
- style.setBorderRight(HSSFCellStyle.BORDER_THIN);//右边框
- style.setBorderTop(HSSFCellStyle.BORDER_THIN);//上边框
- HSSFFont f = wb.createFont();
- f.setFontHeightInPoints((short) 11);//字号
- f.setBoldweight(HSSFFont.BOLDWEIGHT_NORMAL);//加粗
- style.setFont(f);
- style.setAlignment(HSSFCellStyle.ALIGN_CENTER);//左右居中
- style.setVerticalAlignment(HSSFCellStyle.VERTICAL_CENTER);//上下居中
- style.setRotation(short rotation);//单元格内容的旋转的角度
- HSSFDataFormat df = wb.createDataFormat();
- style1.setDataFormat(df.getFormat("0.00%"));//设置单元格数据格式
- cell.setCellFormula(string);//给单元格设公式
- style.setRotation(short rotation);//单元格内容的旋转的角度
- //先把读进来的图片放到一个ByteArrayOutputStream中,以便产生ByteArray
- ByteArrayOutputStream byteArrayOut = new ByteArrayOutputStream();
- BufferedImage bufferImg = ImageIO.read(new File("ok.jpg"));
- ImageIO.write(bufferImg,"jpg",byteArrayOut);
- //读进一个excel模版
- FileInputStream fos = new FileInputStream(filePathName+"/stencil.xlt");
- fs = new POIFSFileSystem(fos);
- //创建一个工作薄
- 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));
- HSSFWorkbook wb = new HSSFWorkbook();
- HSSFSheet sheet = wb.createSheet("format sheet");
- HSSFPrintSetup ps = sheet.getPrintSetup();
- sheet.setAutobreaks(true);
- ps.setFitHeight((short)1);
- ps.setFitWidth((short)1);
- HSSFSheet sheet = wb.createSheet("Sheet1");
- wb.setPrintArea(0, "$A$1:$C$2");
- HSSFSheet sheet = wb.createSheet("format sheet");
- HSSFFooter footer = sheet.getFooter()
- footer.setRight( "Page " + HSSFFooter.page() + " of " + HSSFFooter.numPages() );
- HSSFWorkbook wb = new HSSFWorkbook();
- HSSFSheet sheet = wb.createSheet("row sheet");
- // Create various cells and rows for spreadsheet.
- // Shift rows 6 - 11 on the spreadsheet to the top (rows 0 - 5)
- sheet.shiftRows(5, 10, -5);
- HSSFSheet sheet = wb.createSheet("row sheet");
- heet.setSelected(true);
- HSSFSheet sheet1 = wb.createSheet("new sheet");
- sheet1.setZoom(1,2); // 50 percent magnification
- HSSFSheet sheet = wb.createSheet("new sheet");
- HSSFHeader header = sheet.getHeader();
- header.setCenter("Center Header");
- header.setLeft("Left Header");
- header.setRight(HSSFHeader.font("Stencil-Normal", "Italic") +
- HSSFHeader.fontSize((short) 16) + "Right w/ Stencil-Normal Italic font and size 16");
- HSSFCellStyle style = wb.createCellStyle();
- style.setFillForegroundColor(HSSFColor.LIME.index);
- style.setFillPattern(HSSFCellStyle.SOLID_FOREGROUND);
- HSSFFont font = wb.createFont();
- font.setColor(HSSFColor.RED.index);
- style.setFont(font);
- cell.setCellStyle(style);
- HSSFCellStyle style = wb.createCellStyle();
- style.setFillBackgroundColor(HSSFColor.AQUA.index);
- style.setFillPattern(HSSFCellStyle.BIG_SPOTS);
- HSSFCell cell = row.createCell((short) 1);
- cell.setCellValue("X");
- style = wb.createCellStyle();
- style.setFillForegroundColor(HSSFColor.ORANGE.index);
- style.setFillPattern(HSSFCellStyle.SOLID_FOREGROUND);
- cell.setCellStyle(style);
- HSSFFormulaEvaluator eval=new HSSFFormulaEvaluator((HSSFWorkbook) wb);
- private static void updateFormula(Workbook wb,Sheet s,int row){
- Row r=s.getRow(row);
- Cell c=null;
- FormulaEcaluator eval=null;
- if(wb instanceof HSSFWorkbook)
- eval=new HSSFFormulaEvaluator((HSSFWorkbook) wb);
- else if(wb instanceof XSSFWorkbook)
- eval=new XSSFFormulaEvaluator((XSSFWorkbook) wb);
- for(int i=r.getFirstCellNum();i<r.getLastCellNum();i++){
- c=r.getCell(i);
- if(c.getCellType()==Cell.CELL_TYPE_FORMULA)
- eval.evaluateFormulaCell(c);
- }
- }
说明:FormulaEvaluator提供了evaluateFormulaCell(Cell cell)方法,计算公式保存结果,但不改变公式。而evaluateInCell(Cell cell) 方法是计算公式,并将原公式替换为计算结果,也就是说该单元格的类型不在是Cell.CELL_TYPE_FORMULA而是Cell.CELL_TYPE_NUMBERIC。HSSFFormulaEvaluator提供了静态方法evaluateAllFormu
laCells(HSSFWorkbook wb) ,计算一个Excel文件的所有公式,用起来很方便。