POI Excel合并分页符的复制

上接
Java POI Excel sheet合并
[url]http://zhuyufufu.iteye.com/blog/2033386[/url]
Java POI Excel sheet 合并遇到的问题解决
[url]http://zhuyufufu.iteye.com/blog/2035033[/url]
[url]http://zhuyufufu.iteye.com/blog/2036578[/url]

在合并sheet的时候，分页符的复制也是非常重要的，不然打印就会变形

//分页符的拷贝     int[] rowBreaks = sourceSheet.getRowBreaks();        for (int rowBreaksIndex = 0; rowBreaksIndex < rowBreaks.length; rowBreaksIndex++) {         targetSheet.setRowBreak(pPosition + rowBreaks[rowBreaksIndex]);      }

完整的复制代码

public static HSSFWorkbook mergeHSSFWorkbooks(HSSFWorkbook[] workbooks) {        if(workbooks == null || workbooks.length == 0){           return null;      }else if(workbooks.length == 1){            return workbooks[0];      }     HSSFWorkbook wbFirst = workbooks[0];     HSSFSheet toSheet = wbFirst.getSheetAt(0);       for (int i = 1; i < workbooks.length; i++) {            toSheet.setRowBreak(toSheet.getLastRowNum());         HSSFWorkbook wb = workbooks[i];          HSSFSheet fromsheet = wb.getSheetAt(0);          if(i == 1){             copyRows(wbFirst, wb, fromsheet, toSheet, fromsheet.getFirstRowNum(), fromsheet.getLastRowNum(), (toSheet.getLastRowNum() + 1));         }else{                copyRows(wbFirst, wb, fromsheet, toSheet, fromsheet.getFirstRowNum(), fromsheet.getLastRowNum(), (toSheet.getLastRowNum() + 1));         }     }     return wbFirst;   }

   /**    * @param destWorkBook 目标workbook     * @param sourceWorkBook 源workbook    * @param sourceSheet 源sheet  * @param targetSheet 目sheet  * @param pStartRow 起始读取行     * @param pEndRow 结束读取行   * @param pPosition 目标保存  */   public static void copyRows(HSSFWorkbook destWorkBook, HSSFWorkbook sourceWorkBook, HSSFSheet sourceSheet,HSSFSheet targetSheet, int pStartRow, int pEndRow, int pPosition) {     HSSFRow sourceRow = null;        HSSFRow targetRow = null;        HSSFCell sourceCell = null;      HSSFCell targetCell = null;      int cType;        int i;        int j;        int targetRowFrom;        int targetRowTo;

        if ((pStartRow == -1) || (pEndRow == -1)) {           return;       }

       List<CellRangeAddress> oldRanges = new ArrayList<CellRangeAddress>();        for (i = 0; i < sourceSheet.getNumMergedRegions(); i++) {           oldRanges.add(sourceSheet.getMergedRegion(i));        }

       // 拷贝合并的单元格。原理：复制当前合并单元格后，原位置的格式会移动到新位置，需在原位置生成旧格式       for (int k = 0; k < oldRanges.size(); k++) {            CellRangeAddress oldRange = oldRanges.get(k);            CellRangeAddress newRange = new CellRangeAddress(oldRange                    .getFirstRow(), oldRange.getLastRow(), oldRange                   .getFirstColumn(), oldRange.getLastColumn());

           if (oldRange.getFirstRow() >= pStartRow                   && oldRange.getLastRow() <= pEndRow) {                targetRowFrom = oldRange.getFirstRow() - pStartRow + pPosition;             targetRowTo = oldRange.getLastRow() - pStartRow + pPosition;                oldRange.setFirstRow(targetRowFrom);              oldRange.setLastRow(targetRowTo);             targetSheet.addMergedRegion(oldRange);                sourceSheet.addMergedRegion(newRange);            }     }     // 设置列宽       for (i = pStartRow; i <= pEndRow; i++) {           sourceRow = sourceSheet.getRow(i);           if (sourceRow != null) {             for (j = sourceRow.getLastCellNum(); j > sourceRow.getFirstCellNum(); j--) {                  targetSheet.setColumnWidth(j, sourceSheet.getColumnWidth(j));                 targetSheet.setColumnHidden(j, false);                }             break;            }     }     List<HSSFCellStyle> cellStyleList = new ArrayList<HSSFCellStyle>();      // 拷贝行并填充数据       for (; i <= pEndRow; i++) {         sourceRow = sourceSheet.getRow(i);           if (sourceRow == null) {                continue;         }         targetRow = targetSheet.createRow(i - pStartRow + pPosition);           targetRow.setHeight(sourceRow.getHeight());           for (j = sourceRow.getFirstCellNum(); j <= sourceRow.getPhysicalNumberOfCells(); j++) {                sourceCell = sourceRow.getCell(j);               if (sourceCell == null) {                   continue;             }             targetCell = targetRow.createCell(j);                //复制样式                //样式的设置               HSSFCellStyle cStyle = compareStoreAndGetCellStyle(cellStyleList, sourceCell.getCellStyle(), destWorkBook, sourceWorkBook);              targetCell.setCellStyle(cStyle);

                cType = sourceCell.getCellType();                targetCell.setCellType(cType);                switch (cType) {              case HSSFCell.CELL_TYPE_BOOLEAN:                  targetCell.setCellValue(sourceCell.getBooleanCellValue());                    // System.out.println("--------TYPE_BOOLEAN:" + targetCell.getBooleanCellValue());                 break;                case HSSFCell.CELL_TYPE_ERROR:                    targetCell.setCellErrorValue(sourceCell.getErrorCellValue());                 // System.out.println("--------TYPE_ERROR:" + targetCell.getErrorCellValue());                 break;                case HSSFCell.CELL_TYPE_FORMULA:                  // parseFormula这个函数的用途在后面说明                   targetCell.setCellFormula(parseFormula(sourceCell.getCellFormula()));                 // System.out.println("--------TYPE_FORMULA:" + targetCell.getCellFormula());                  break;                case HSSFCell.CELL_TYPE_NUMERIC:                  targetCell.setCellValue(sourceCell.getNumericCellValue());                    // System.out.println("--------TYPE_NUMERIC:" + targetCell.getNumericCellValue());                 break;                case HSSFCell.CELL_TYPE_STRING:                   targetCell.setCellValue(sourceCell.getRichStringCellValue());                 // System.out.println("--------TYPE_STRING:" + i + targetCell.getRichStringCellValue());                  break;                default:                  targetCell.setCellValue(sourceCell.getRichStringCellValue());                 // System.out.println("--------TYPE_STRING:" + i + targetCell.getRichStringCellValue());                  break;                }         }     }

       //分页符的拷贝      int[] rowBreaks = sourceSheet.getRowBreaks();        for (int rowBreaksIndex = 0; rowBreaksIndex < rowBreaks.length; rowBreaksIndex++) {         targetSheet.setRowBreak(pPosition + rowBreaks[rowBreaksIndex]);      } }

 /**    * 比较存储并获得cellstyle    * @param cellStyleList   * @param cellStyle   * @param sourceWorkBook  * @return    */   private static HSSFCellStyle compareStoreAndGetCellStyle(         List<HSSFCellStyle> cellStyleList,          HSSFCellStyle sourceCellStyle,            HSSFWorkbook destWorkBook,            HSSFWorkbook sourceWorkBook) {        for (int index = 0; index < cellStyleList.size(); index++) {            HSSFCellStyle cellStyle = cellStyleList.get(index);          if(isEqual(cellStyle, sourceCellStyle, destWorkBook, sourceWorkBook)){                return cellStyle;         }     }     //拷贝新的样式到列表       HSSFCellStyle cStyle = destWorkBook.createCellStyle();       cStyle = copyCellStyle(cStyle, sourceCellStyle, sourceWorkBook);     cellStyleList.add(cStyle);        return cStyle;    }

   /**    * 两个cellStyle是否相同     * @param cellStyle   * @param sourceCellStyle     * @param sourceWorkBook      * @param destWorkBook    * @return    */   private static boolean isEqual(HSSFCellStyle cellStyle,           HSSFCellStyle sourceCellStyle, HSSFWorkbook destWorkBook, HSSFWorkbook sourceWorkBook) {      //判断换行样式是否一样      if(cellStyle.getWrapText() != sourceCellStyle.getWrapText()){            return false;     }     //对齐方式是否一样        if(cellStyle.getAlignment() != sourceCellStyle.getAlignment()){          return false;     }     if(cellStyle.getVerticalAlignment()!= sourceCellStyle.getVerticalAlignment()){           return false;     }     //边框是否一样      if(cellStyle.getBorderBottom()!= sourceCellStyle.getBorderBottom()){         return false;     }     if(cellStyle.getBorderLeft()!= sourceCellStyle.getBorderLeft()){         return false;     }     if(cellStyle.getBorderRight()!= sourceCellStyle.getBorderRight()){           return false;     }     if(cellStyle.getBorderTop()!= sourceCellStyle.getBorderTop()){           return false;     }     if(cellStyle.getBottomBorderColor()!= sourceCellStyle.getBottomBorderColor()){           return false;     }     if(cellStyle.getLeftBorderColor()!= sourceCellStyle.getLeftBorderColor()){           return false;     }     if(cellStyle.getRightBorderColor()!= sourceCellStyle.getRightBorderColor()){         return false;     }     if(cellStyle.getTopBorderColor()!= sourceCellStyle.getTopBorderColor()){         return false;     }     //字体是否一样      HSSFFont sourceFont = sourceCellStyle.getFont(sourceWorkBook);       HSSFFont destFont = cellStyle.getFont(destWorkBook);     if(destFont.getBoldweight() != sourceFont.getBoldweight()){          return false;     }     if(destFont.getCharSet() != sourceFont.getCharSet()){            return false;     }     if(destFont.getColor() != sourceFont.getColor()){            return false;     }     if(destFont.getColor() != sourceFont.getColor()){            return false;     }     if(destFont.getFontHeight() != sourceFont.getFontHeight()){          return false;     }     if(destFont.getFontHeightInPoints() != sourceFont.getFontHeightInPoints()){          return false;     }     if(destFont.getIndex() != sourceFont.getIndex()){            return false;     }     if(destFont.getItalic() != sourceFont.getItalic()){          return false;     }     if(destFont.getUnderline() != sourceFont.getUnderline()){            return false;     }     if(destFont.getStrikeout() != sourceFont.getStrikeout()){            return false;     }     if(!destFont.getFontName().equals(sourceFont.getFontName())){         return false;     }     //别的样式是否一样        return true;  }

   /**    * 样式拷贝    * @param cStyle 目标style  * @param sourceCellStyle 源style  * @param sourceWorkBook 源workBook    * @return    */   private static HSSFCellStyle copyCellStyle(HSSFCellStyle cStyle, HSSFCellStyle sourceCellStyle, HSSFWorkbook sourceWorkBook) {        if(sourceCellStyle == null || cStyle == null){            return cStyle;        }     //是否换行        cStyle.setWrapText(sourceCellStyle.getWrapText());        //字体拷贝        cStyle.setFont(sourceCellStyle.getFont(sourceWorkBook));//         cStyle.cloneStyleFrom(sourceCellStyle);      //拷贝对齐方式      cStyle.setAlignment(sourceCellStyle.getAlignment());      cStyle.setVerticalAlignment(sourceCellStyle.getVerticalAlignment());      //边框拷贝        cStyle.setBorderBottom(sourceCellStyle.getBorderBottom());        cStyle.setBorderLeft(sourceCellStyle.getBorderLeft());        cStyle.setBorderRight(sourceCellStyle.getBorderRight());      cStyle.setBorderTop(sourceCellStyle.getBorderTop());      cStyle.setBottomBorderColor(sourceCellStyle.getBottomBorderColor());      cStyle.setLeftBorderColor(sourceCellStyle.getLeftBorderColor());      cStyle.setRightBorderColor(sourceCellStyle.getRightBorderColor());        cStyle.setTopBorderColor(sourceCellStyle.getTopBorderColor());        //别的样式的拷贝     return cStyle;    }

   /**    * 处理公式    * @param pPOIFormula     * @return    */   private static String parseFormula(String pPOIFormula) {      final String cstReplaceString = "ATTR(semiVolatile)"; //$NON-NLS-1$        StringBuffer result = null;      int index;        result = new StringBuffer();     index = pPOIFormula.indexOf(cstReplaceString);       if (index >= 0) {         result.append(pPOIFormula.substring(0, index));           result.append(pPOIFormula.substring(index + cstReplaceString.length()));     } else {          result.append(pPOIFormula);       }     return result.toString(); }

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