Java如何将指定excel格式的行复制到指定的另一行,只复制格式不复制单元格的值
时间: 2024-01-28 07:04:21 浏览: 62
Java可以使用Apache POI库来操作Excel文件,实现只复制格式不复制单元格值的方法如下:
1. 创建源行和目标行的对象,并获取它们的单元格对象。
```java
Row sourceRow = sheet.getRow(sourceRowIndex);
Row targetRow = sheet.getRow(targetRowIndex);
Cell sourceCell, targetCell;
```
2. 遍历源行的单元格,获取每个单元格的格式,并将格式应用到目标行的对应单元格。
```java
for (int i = sourceRow.getFirstCellNum(); i < sourceRow.getLastCellNum(); i++) {
sourceCell = sourceRow.getCell(i);
targetCell = targetRow.getCell(i);
if (sourceCell != null && targetCell != null) {
CellStyle style = sourceCell.getCellStyle();
targetCell.setCellStyle(style);
}
}
```
3. 将修改后的Excel文件保存。
```java
FileOutputStream outputStream = new FileOutputStream(filePath);
workbook.write(outputStream);
outputStream.close();
```
完整代码示例如下:
```java
import org.apache.poi.ss.usermodel.*;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.IOException;
public class ExcelUtils {
public static void copyRowStyle(String filePath, int sourceRowIndex, int targetRowIndex) throws IOException {
FileInputStream inputStream = new FileInputStream(new File(filePath));
Workbook workbook = WorkbookFactory.create(inputStream);
Sheet sheet = workbook.getSheetAt(0);
Row sourceRow = sheet.getRow(sourceRowIndex);
Row targetRow = sheet.getRow(targetRowIndex);
Cell sourceCell, targetCell;
for (int i = sourceRow.getFirstCellNum(); i < sourceRow.getLastCellNum(); i++) {
sourceCell = sourceRow.getCell(i);
targetCell = targetRow.getCell(i);
if (sourceCell != null && targetCell != null) {
CellStyle style = sourceCell.getCellStyle();
targetCell.setCellStyle(style);
}
}
inputStream.close();
FileOutputStream outputStream = new FileOutputStream(filePath);
workbook.write(outputStream);
outputStream.close();
}
}
```
其中,filePath参数为Excel文件的路径,sourceRowIndex和targetRowIndex分别表示源行和目标行的索引。
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