关于POI合并单元格后加边框问题
时间: 2024-05-01 18:22:13 浏览: 114
在POI中合并单元格后添加边框需要进行下面两个步骤:
1. 首先设置合并后的单元格的边桘,可以使用CellStyle类的setBorderXXX()方法来设置边框样式,如下所示:
```
CellStyle style = workbook.createCellStyle();
style.setBorderTop(BorderStyle.THIN);
style.setBorderBottom(BorderStyle.THIN);
style.setBorderLeft(BorderStyle.THIN);
style.setBorderRight(BorderStyle.THIN);
```
2. 然后将样式应用到每一个合并单元格的子单元格上,可以使用RegionUtil类的setBorderXXX()方法来实现,示例如下:
```
RegionUtil.setBorderTop(BorderStyle.THIN, mergedRegionCellRangeAddress, sheet, workbook);
RegionUtil.setBorderBottom(BorderStyle.THIN, mergedRegionCellRangeAddress, sheet, workbook);
RegionUtil.setBorderLeft(BorderStyle.THIN, mergedRegionCellRangeAddress, sheet, workbook);
RegionUtil.setBorderRight(BorderStyle.THIN, mergedRegionCellRangeAddress, sheet, workbook);
```
其中,mergedRegionCellRangeAddress表示合并后的单元格的范围。
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