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@ -48,6 +48,7 @@ import org.apache.poi.ss.usermodel.FillPatternType; |
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import org.apache.poi.ss.usermodel.Font; |
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import org.apache.poi.ss.usermodel.HorizontalAlignment; |
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import org.apache.poi.ss.usermodel.IndexedColors; |
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import org.apache.poi.ss.usermodel.Name; |
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import org.apache.poi.ss.usermodel.PictureData; |
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import org.apache.poi.ss.usermodel.Row; |
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import org.apache.poi.ss.usermodel.Sheet; |
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@ -981,11 +982,19 @@ public class ExcelUtil<T> |
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sheet.setColumnWidth(column, (int) ((attr.width() + 0.72) * 256)); |
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} |
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if (StringUtils.isNotEmpty(attr.prompt()) || attr.combo().length > 0) |
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{ |
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if (attr.combo().length > 15 || StringUtils.join(attr.combo()).length() > 255) |
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{ |
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// 如果下拉数大于15或字符串长度大于255,则使用一个新sheet存储,避免生成的模板下拉值获取不到
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setXSSFValidationWithHidden(sheet, attr.combo(), attr.prompt(), 1, 100, column, column); |
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} |
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else |
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{ |
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// 提示信息或只能选择不能输入的列内容.
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setPromptOrValidation(sheet, attr.combo(), attr.prompt(), 1, 100, column, column); |
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} |
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} |
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} |
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/** |
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* 添加单元格 |
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@ -1087,6 +1096,58 @@ public class ExcelUtil<T> |
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sheet.addValidationData(dataValidation); |
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} |
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/** |
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* 设置某些列的值只能输入预制的数据,显示下拉框(兼容超出一定数量的下拉框). |
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* |
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* @param sheet 要设置的sheet. |
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* @param textlist 下拉框显示的内容 |
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* @param promptContent 提示内容 |
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* @param firstRow 开始行 |
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* @param endRow 结束行 |
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* @param firstCol 开始列 |
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* @param endCol 结束列 |
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*/ |
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public void setXSSFValidationWithHidden(Sheet sheet, String[] textlist, String promptContent, int firstRow, int endRow, int firstCol, int endCol) |
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{ |
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String hideSheetName = "combo_" + firstCol + "_" + endCol; |
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Sheet hideSheet = wb.createSheet(hideSheetName); // 用于存储 下拉菜单数据
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for (int i = 0; i < textlist.length; i++) |
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{ |
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hideSheet.createRow(i).createCell(0).setCellValue(textlist[i]); |
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} |
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// 创建名称,可被其他单元格引用
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Name name = wb.createName(); |
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name.setNameName(hideSheetName + "_data"); |
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name.setRefersToFormula(hideSheetName + "!$A$1:$A$" + textlist.length); |
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DataValidationHelper helper = sheet.getDataValidationHelper(); |
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// 加载下拉列表内容
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DataValidationConstraint constraint = helper.createFormulaListConstraint(hideSheetName + "_data"); |
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// 设置数据有效性加载在哪个单元格上,四个参数分别是:起始行、终止行、起始列、终止列
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CellRangeAddressList regions = new CellRangeAddressList(firstRow, endRow, firstCol, endCol); |
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// 数据有效性对象
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DataValidation dataValidation = helper.createValidation(constraint, regions); |
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if (StringUtils.isNotEmpty(promptContent)) |
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{ |
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// 如果设置了提示信息则鼠标放上去提示
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dataValidation.createPromptBox("", promptContent); |
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dataValidation.setShowPromptBox(true); |
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} |
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// 处理Excel兼容性问题
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if (dataValidation instanceof XSSFDataValidation) |
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{ |
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dataValidation.setSuppressDropDownArrow(true); |
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dataValidation.setShowErrorBox(true); |
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} |
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else |
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{ |
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dataValidation.setSuppressDropDownArrow(false); |
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} |
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sheet.addValidationData(dataValidation); |
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// 设置hiddenSheet隐藏
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wb.setSheetHidden(wb.getSheetIndex(hideSheet), true); |
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} |
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/** |
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* 解析导出值 0=男,1=女,2=未知 |
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* |
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