diff --git a/ruoyi-common/ruoyi-common-excel/src/main/java/org/dromara/common/excel/core/ExcelDownHandler.java b/ruoyi-common/ruoyi-common-excel/src/main/java/org/dromara/common/excel/core/ExcelDownHandler.java index b3f68ed1e..32fee7a6c 100644 --- a/ruoyi-common/ruoyi-common-excel/src/main/java/org/dromara/common/excel/core/ExcelDownHandler.java +++ b/ruoyi-common/ruoyi-common-excel/src/main/java/org/dromara/common/excel/core/ExcelDownHandler.java @@ -55,6 +55,7 @@ public class ExcelDownHandler implements SheetWriteHandler { * 下拉可选项 */ private final List dropDownOptions; + private final DictService dictService; /** * 当前单选进度 */ @@ -63,7 +64,6 @@ public class ExcelDownHandler implements SheetWriteHandler { * 当前联动选择进度 */ private int currentLinkedOptionsSheetIndex; - private final DictService dictService; public ExcelDownHandler(List options) { this.dropDownOptions = options; @@ -139,8 +139,8 @@ public class ExcelDownHandler implements SheetWriteHandler { } else if (everyOptions.getOptions().size() > 10) { // 当一级选项参数个数大于10，使用额外表的形式 dropDownWithSheet(helper, workbook, sheet, everyOptions.getIndex(), everyOptions.getOptions()); - } else if (everyOptions.getOptions().size() != 0) { - // 当一级选项个数不为空，使用默认形式 + } else { + // 否则使用默认形式 dropDownWithSimple(helper, sheet, everyOptions.getIndex(), everyOptions.getOptions()); } }); @@ -171,10 +171,24 @@ public class ExcelDownHandler implements SheetWriteHandler { Sheet linkedOptionsDataSheet = workbook.createSheet(WorkbookUtil.createSafeSheetName(linkedOptionsSheetName)); // 将下拉表隐藏 workbook.setSheetHidden(workbook.getSheetIndex(linkedOptionsDataSheet), true); - // 完善横向的一级选项数据表 + // 选项数据 List firstOptions = options.getOptions(); Map> secoundOptionsMap = options.getNextOptions(); + // 采用按行填充数据的方式，避免EasyExcel出现数据无法写入的问题 + // Attempting to write a row in the range that is already written to disk + + // 使用ArrayList记载数据，防止乱序 + List columnNames = new ArrayList<>(); + // 写入第一行，即第一级的数据 + Row firstRow = linkedOptionsDataSheet.createRow(0); + for (int columnIndex = 0; columnIndex < firstOptions.size(); columnIndex++) { + String columnName = firstOptions.get(columnIndex); + firstRow.createCell(columnIndex) + .setCellValue(columnName); + columnNames.add(columnName); + } + // 创建名称管理器 Name name = workbook.createName(); // 设置名称管理器的别名 @@ -190,28 +204,12 @@ public class ExcelDownHandler implements SheetWriteHandler { // 设置数据校验为序列模式，引用的是名称管理器中的别名 this.markOptionsToSheet(helper, sheet, options.getIndex(), helper.createFormulaListConstraint(linkedOptionsSheetName)); - for (int columIndex = 0; columIndex < firstOptions.size(); columIndex++) { - // 先提取主表中一级下拉的列名 + // 创建二级选项的名称管理器 + for (int columIndex = 0; columIndex < columnNames.size(); columIndex++) { + // 列名 String firstOptionsColumnName = getExcelColumnName(columIndex); - // 一次循环是每一个一级选项 - int finalI = columIndex; - // 本次循环的一级选项值 - String thisFirstOptionsValue = firstOptions.get(columIndex); - // 创建第一行的数据 - Optional.ofNullable(linkedOptionsDataSheet.getRow(0)) - // 如果不存在则创建第一行 - .orElseGet(() -> linkedOptionsDataSheet.createRow(finalI)) - // 第一行当前列 - .createCell(columIndex) - // 设置值为当前一级选项值 - .setCellValue(thisFirstOptionsValue); - - // 第二行开始，设置第二级别选项参数 - List secondOptions = secoundOptionsMap.get(thisFirstOptionsValue); - if (CollUtil.isEmpty(secondOptions)) { - // 必须保证至少有一个关联选项，否则将导致Excel解析错误 - secondOptions = Collections.singletonList("暂无_0"); - } + // 对应的一级值 + String thisFirstOptionsValue = columnNames.get(columIndex); // 以该一级选项值创建子名称管理器 Name sonName = workbook.createName(); @@ -222,7 +220,9 @@ public class ExcelDownHandler implements SheetWriteHandler { linkedOptionsSheetName, firstOptionsColumnName, firstOptionsColumnName, - secondOptions.size() + 1 + // 二级选项存在则设置为(选项个数+1)行，否则设置为2行 + Math.max(Optional.ofNullable(secoundOptionsMap.get(thisFirstOptionsValue)) + .orElseGet(ArrayList::new).size(), 1) + 1 ); // 设置名称管理器的引用位置 sonName.setRefersToFormula(sonFunction); @@ -235,25 +235,51 @@ public class ExcelDownHandler implements SheetWriteHandler { // 二级只能主表每一行的每一列添加二级校验 markLinkedOptionsToSheet(helper, sheet, i, options.getNextIndex(), helper.createFormulaListConstraint(secondOptionsFunction)); } + } - for (int rowIndex = 0; rowIndex < secondOptions.size(); rowIndex++) { - // 从第二行开始填充二级选项 - int finalRowIndex = rowIndex + 1; - int finalColumIndex = columIndex; - - Row row = Optional.ofNullable(linkedOptionsDataSheet.getRow(finalRowIndex)) - // 没有则创建 - .orElseGet(() -> linkedOptionsDataSheet.createRow(finalRowIndex)); - Optional - // 在本级一级选项所在的列 - .ofNullable(row.getCell(finalColumIndex)) - // 不存在则创建 - .orElseGet(() -> row.createCell(finalColumIndex)) - // 设置二级选项值 - .setCellValue(secondOptions.get(rowIndex)); + // 将二级数据处理为按行区分 + Map> columnValueMap = new HashMap<>(); + int currentRow = 1; + while (currentRow >= 0) { + boolean flag = false; + List rowData = new ArrayList<>(); + for (String columnName : columnNames) { + List data = secoundOptionsMap.get(columnName); + if (CollUtil.isEmpty(data)) { + // 添加空字符串填充位置 + rowData.add(" "); + continue; + } + // 取第一个 + String str = data.get(0); + rowData.add(str); + // 通过移除的方式避免重复 + data.remove(0); + // 设置可以继续 + flag = true; + } + columnValueMap.put(currentRow, rowData); + // 可以继续，则增加行数，否则置为负数跳出循环 + if (flag) { + currentRow++; + } else { + currentRow = -1; } } + // 填充第二级选项数据 + columnValueMap.forEach((rowIndex, rowValues) -> { + Row row = linkedOptionsDataSheet.createRow(rowIndex); + for (int columnIndex = 0; columnIndex < rowValues.size(); columnIndex++) { + String rowValue = rowValues.get(columnIndex); + // 填充位置的部分不渲染 + if (StrUtil.isNotBlank(rowValue)) { + row.createCell(columnIndex) + .setCellValue(rowValue); + } + } + }); + currentLinkedOptionsSheetIndex++; } diff --git a/ruoyi-modules/ruoyi-demo/src/main/java/org/dromara/demo/service/impl/ExportExcelServiceImpl.java b/ruoyi-modules/ruoyi-demo/src/main/java/org/dromara/demo/service/impl/ExportExcelServiceImpl.java index 0240e02f2..ebb6ac688 100644 --- a/ruoyi-modules/ruoyi-demo/src/main/java/org/dromara/demo/service/impl/ExportExcelServiceImpl.java +++ b/ruoyi-modules/ruoyi-demo/src/main/java/org/dromara/demo/service/impl/ExportExcelServiceImpl.java @@ -1,5 +1,6 @@ package org.dromara.demo.service.impl; +import cn.hutool.core.util.RandomUtil; import cn.hutool.core.util.StrUtil; import jakarta.servlet.http.HttpServletResponse; import lombok.Data; @@ -121,8 +122,9 @@ public class ExportExcelServiceImpl implements IExportExcelService { List provinceList = new ArrayList<>(); // 实际业务中一般采用数据库读取的形式，这里直接拼接创建 - provinceList.add(new DemoCityData(0, null, "安徽省")); - provinceList.add(new DemoCityData(1, null, "江苏省")); + provinceList.add(new DemoCityData(0, null, "P100000")); + provinceList.add(new DemoCityData(1, null, "P200000")); + provinceList.add(new DemoCityData(2, null, "P300000")); return provinceList; } @@ -137,11 +139,11 @@ public class ExportExcelServiceImpl implements IExportExcelService { List cityList = new ArrayList<>(); // 实际业务中一般采用数据库读取的形式，这里直接拼接创建 - cityList.add(new DemoCityData(0, 0, "合肥市")); - cityList.add(new DemoCityData(1, 0, "芜湖市")); - cityList.add(new DemoCityData(2, 1, "南京市")); - cityList.add(new DemoCityData(3, 1, "无锡市")); - cityList.add(new DemoCityData(4, 1, "徐州市")); + cityList.add(new DemoCityData(0, 0, "C110000")); + cityList.add(new DemoCityData(1, 0, "C120000")); + cityList.add(new DemoCityData(2, 1, "C210000")); + cityList.add(new DemoCityData(3, 1, "C220000")); + cityList.add(new DemoCityData(4, 1, "C230000")); selectParentData(provinceList, cityList); @@ -157,17 +159,29 @@ public class ExportExcelServiceImpl implements IExportExcelService { private List getAreaList(List cityList) { List areaList = new ArrayList<>(); + int minCount = 500; + int maxCount = 10000; + // 实际业务中一般采用数据库读取的形式，这里直接拼接创建 - areaList.add(new DemoCityData(0, 0, "瑶海区")); - areaList.add(new DemoCityData(1, 0, "庐江区")); - areaList.add(new DemoCityData(2, 1, "南宁县")); - areaList.add(new DemoCityData(3, 1, "镜湖区")); - areaList.add(new DemoCityData(4, 2, "玄武区")); - areaList.add(new DemoCityData(5, 2, "秦淮区")); - areaList.add(new DemoCityData(6, 3, "宜兴市")); - areaList.add(new DemoCityData(7, 3, "新吴区")); - areaList.add(new DemoCityData(8, 4, "鼓楼区")); - areaList.add(new DemoCityData(9, 4, "丰县")); + for (int i = 0; i < RandomUtil.randomInt(minCount, maxCount); i++) { + areaList.add(new DemoCityData(areaList.size(), 0, String.format("A11%04d", i))); + } + + for (int i = 0; i < RandomUtil.randomInt(minCount, maxCount); i++) { + areaList.add(new DemoCityData(areaList.size(), 1, String.format("A12%04d", i))); + } + + for (int i = 0; i < RandomUtil.randomInt(minCount, maxCount); i++) { + areaList.add(new DemoCityData(areaList.size(), 2, String.format("A21%04d", i))); + } + + for (int i = 0; i < RandomUtil.randomInt(minCount, maxCount); i++) { + areaList.add(new DemoCityData(areaList.size(), 3, String.format("A22%04d", i))); + } + + for (int i = 0; i < RandomUtil.randomInt(minCount, maxCount); i++) { + areaList.add(new DemoCityData(areaList.size(), 4, String.format("A23%04d", i))); + } selectParentData(cityList, areaList);