| | |
| | | style.cloneStyleFrom(styles.get("data")); |
| | | style.setAlignment(HorizontalAlignment.CENTER); |
| | | style.setVerticalAlignment(VerticalAlignment.CENTER); |
| | | style.setFillForegroundColor(excel.headerBackgroundColor().index); |
| | | style.setFillPattern(FillPatternType.SOLID_FOREGROUND); |
| | | // 已注释,表头不显示背景色 |
| | | // style.setFillForegroundColor(excel.headerBackgroundColor().index); |
| | | // style.setFillPattern(FillPatternType.SOLID_FOREGROUND); |
| | | // 设置表头自动换行 |
| | | style.setWrapText(true); |
| | | Font headerFont = wb.createFont(); |
| | | headerFont.setFontName("Arial"); |
| | | headerFont.setFontHeightInPoints((short) 10); |
| | | headerFont.setBold(true); |
| | | headerFont.setBold(false); |
| | | headerFont.setColor(excel.headerColor().index); |
| | | style.setFont(headerFont); |
| | | // 设置表格头单元格文本形式 |
| | |
| | | } |
| | | else if (ColumnType.IMAGE == attr.cellType()) |
| | | { |
| | | ClientAnchor anchor = new XSSFClientAnchor(0, 0, 0, 0, (short) cell.getColumnIndex(), cell.getRow().getRowNum(), (short) (cell.getColumnIndex() + 1), cell.getRow().getRowNum() + 1); |
| | | ClientAnchor anchor = new HSSFClientAnchor(0, 0, 0, 0, (short) cell.getColumnIndex(), cell.getRow().getRowNum(), (short) (cell.getColumnIndex() + 1), cell.getRow().getRowNum() + 1); |
| | | String propertyValue = Convert.toStr(value); |
| | | if (StringUtils.isNotEmpty(propertyValue)) |
| | | { |
| | |
| | | Cell cell = null; |
| | | try |
| | | { |
| | | // 设置行高 |
| | | row.setHeight(maxHeight); |
| | | // 设置行高为自动调整 |
| | | // row.setHeight((short) -1); |
| | | // 根据Excel中设置情况决定是否导出,有些情况需要保持为空,希望用户填写这一列. |
| | | if (attr.isExport()) |
| | | { |
| | |
| | | sheet.addMergedRegion(new CellRangeAddress(subMergedFirstRowNum, subMergedLastRowNum, column, column)); |
| | | } |
| | | } |
| | | cell.setCellStyle(styles.get(StringUtils.format("data_{}_{}_{}_{}_{}", attr.align(), attr.color(), attr.backgroundColor(), attr.cellType(), attr.wrapText()))); |
| | | |
| | | // cell.setCellStyle(styles.get(StringUtils.format("data_{}_{}_{}_{}_{}", attr.align(), attr.color(), attr.backgroundColor(), attr.cellType(), attr.wrapText()))); |
| | | // 获取并修改样式 |
| | | CellStyle style = styles.get(StringUtils.format("data_{}_{}_{}_{}_{}", attr.align(), attr.color(), attr.backgroundColor(), attr.cellType(), attr.wrapText())); |
| | | Workbook workbook = row.getSheet().getWorkbook(); |
| | | CellStyle newStyle = workbook.createCellStyle(); |
| | | newStyle.cloneStyleFrom(style); |
| | | newStyle.setWrapText(true); // 关键:启用自动换行 |
| | | cell.setCellStyle(newStyle); |
| | | // 用于读取对象中的属性 |
| | | Object value = getTargetValue(vo, field, attr); |
| | | String dateFormat = attr.dateFormat(); |
| | |
| | | // 设置列类型 |
| | | setCellVo(value, attr, cell); |
| | | } |
| | | adjustRowHeightAfterSetValue(row, cell, value); |
| | | |
| | | addStatisticsData(column, Convert.toStr(value), attr); |
| | | } |
| | | } |
| | |
| | | } |
| | | return cell; |
| | | } |
| | | /** |
| | | * 设置值后调整行高 |
| | | */ |
| | | private void adjustRowHeightAfterSetValue(Row row, Cell cell, Object value) { |
| | | if (value == null) return; |
| | | |
| | | String text = value.toString(); |
| | | Sheet sheet = row.getSheet(); |
| | | |
| | | // 1. 计算自动高度(基于内容) |
| | | short autoHeight = calculateSimpleAutoHeight(text, cell); |
| | | |
| | | // 2. 获取当前行高 |
| | | short currentHeight = row.getHeight(); |
| | | if (currentHeight == -1) { |
| | | currentHeight = sheet.getDefaultRowHeight(); |
| | | } |
| | | |
| | | // 3. 使用较大的高度(自动计算的高度或当前高度) |
| | | short baseHeight = (short) Math.max(currentHeight, autoHeight); |
| | | System.out.println(baseHeight+"aaaaaaaaatttttttt"); |
| | | // 4. 在基础上增加额外高度(100单位 = 5点) |
| | | short extraHeight = 80; |
| | | short newHeight = (short) (baseHeight + extraHeight); |
| | | |
| | | // 5. 限制最大高度 |
| | | short maxHeight = (short) 4000; // 100点 |
| | | row.setHeight((short) Math.min(maxHeight,newHeight)); |
| | | } |
| | | |
| | | /** |
| | | * 简化的自动高度计算 |
| | | */ |
| | | private short calculateSimpleAutoHeight(String text, Cell cell) { |
| | | if (text == null || text.isEmpty()) return 0; |
| | | |
| | | Sheet sheet = cell.getSheet(); |
| | | int colIndex = cell.getColumnIndex(); |
| | | |
| | | // 获取列宽(字符数) |
| | | int colWidthChars = sheet.getColumnWidth(colIndex) / 256; |
| | | if (colWidthChars <= 0) colWidthChars = 10; |
| | | |
| | | // 计算文本行数 |
| | | int lines = 1; |
| | | if (text.contains("\n")) { |
| | | // 有显式换行 |
| | | String[] parts = text.split("\n"); |
| | | for (String part : parts) { |
| | | lines += Math.max(1, (int) Math.ceil(part.length() * 1.5 / colWidthChars)); |
| | | } |
| | | } else { |
| | | // 自动换行 |
| | | lines = (int) Math.ceil(text.length() * 1.5 / colWidthChars); |
| | | } |
| | | |
| | | // 每行高度:假设18点(360 POI单位) |
| | | return (short) (lines * 360); |
| | | } |
| | | /** |
| | | * 设置 POI XSSFSheet 单元格提示或选择框 |
| | | * |
| | |
| | | */ |
| | | public void createWorkbook() |
| | | { |
| | | this.wb = new SXSSFWorkbook(500); |
| | | this.wb = new HSSFWorkbook(); |
| | | this.sheet = wb.createSheet(); |
| | | wb.setSheetName(0, sheetName); |
| | | this.styles = createStyles(wb); |