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!798 fix 修复 excel 导出多 sheet 合并单元格失效问题

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* fix 修复 excel 导出多 sheet 合并单元格失效问题
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马铃薯头
2025-12-10 09:22:14 +00:00
committed by 疯狂的狮子Li
parent 279488e7ed
commit 39b19ac361
2 changed files with 15 additions and 13 deletions
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16
ruoyi-common/ruoyi-common-excel/src/main/java/org/dromara/common/excel/core/CellMergeStrategy.java
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@@ -2,15 +2,16 @@ package org.dromara.common.excel.core;
import cn.hutool.core.collection.CollUtil; import cn.hutool.core.collection.CollUtil;
import cn.idev.excel.metadata.Head; import cn.idev.excel.metadata.Head;
import cn.idev.excel.write.handler.WorkbookWriteHandler; import cn.idev.excel.write.handler.SheetWriteHandler;
import cn.idev.excel.write.handler.context.WorkbookWriteHandlerContext;
import cn.idev.excel.write.merge.AbstractMergeStrategy; import cn.idev.excel.write.merge.AbstractMergeStrategy;
import cn.idev.excel.write.metadata.holder.WriteSheetHolder;
import cn.idev.excel.write.metadata.holder.WriteWorkbookHolder;
import lombok.extern.slf4j.Slf4j; import lombok.extern.slf4j.Slf4j;
import org.apache.poi.ss.usermodel.Cell; import org.apache.poi.ss.usermodel.Cell;
import org.apache.poi.ss.usermodel.Sheet; import org.apache.poi.ss.usermodel.Sheet;
import org.apache.poi.ss.util.CellRangeAddress; import org.apache.poi.ss.util.CellRangeAddress;
import java.util.*; import java.util.List;
/** /**
* 列值重复合并策略 * 列值重复合并策略
@@ -18,7 +19,7 @@ import java.util.*;
* @author Lion Li * @author Lion Li
*/ */
@Slf4j @Slf4j
public class CellMergeStrategy extends AbstractMergeStrategy implements WorkbookWriteHandler { public class CellMergeStrategy extends AbstractMergeStrategy implements SheetWriteHandler {
private final List<CellRangeAddress> cellList; private final List<CellRangeAddress> cellList;
@@ -46,13 +47,14 @@ public class CellMergeStrategy extends AbstractMergeStrategy implements Workbook
} }
@Override @Override
public void afterWorkbookDispose(final WorkbookWriteHandlerContext context) { public void afterSheetCreate(final WriteWorkbookHolder writeWorkbookHolder, final WriteSheetHolder writeSheetHolder) {
if (CollUtil.isEmpty(cellList)) { if (CollUtil.isEmpty(cellList)) {
return; return;
} }
//当前表格写完后，统一写入 // 在 Sheet 创建时提前写入合并区域；后续写入只会影响首格，不会移除合并
final Sheet sheet = writeSheetHolder.getSheet();
for (CellRangeAddress item : cellList) { for (CellRangeAddress item : cellList) {
context.getWriteContext().writeSheetHolder().getSheet().addMergedRegion(item); sheet.addMergedRegion(item);
} }
} }