Java修改Excel某一列内容
public class Test {
public static void main(String[] args) throws IOException {
IDEA idea = new IDEA();
idea.getKey("jx123456");
FileInputStream inputStream = null;
FileOutputStream outputStream = null;
try {
inputStream = new FileInputStream("C:\Users\Administrator\Desktop\2.xlsx");
// 根据输入流创建工作簿
Workbook workbook = new XSSFWorkbook(inputStream);
// 获取表
Sheet sheet = workbook.getSheet("SQL Results");
int lastRowNum = sheet.getLastRowNum();
System.out.println(lastRowNum);
for (int i = 1; i <= sheet.getLastRowNum(); i++) {
Row row = sheet.getRow(i);
if (null == row) {
continue;
} else {
Cell cell = row.getCell(1);
if (null == cell) {
continue;
} else {
String stringCellValue = cell.getStringCellValue();
System.out.println(stringCellValue);
if (stringCellValue.length() == 64) {
String desString = idea.getDesString(stringCellValue);
System.out.println(desString);
cell.setCellValue(desString);
}
}
}
}
outputStream = new FileOutputStream("C:\Users\Administrator\Desktop\3.xlsx");
workbook.write(outputStream);
} catch (FileNotFoundException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
} finally {
inputStream.close();
outputStream.close();
}
}
}
