读取:
public static void main(String[] args) throws Exception{
String filePath = "d:\\test.xls";
Workbook book = Workbook.getWorkbook(new File(filePath));
//获得第一个工作表对象
Sheet sheet = book.getSheet(0);
//得到第一列 第二行的单元格
Cell cell1 = sheet.getCell(0, 1);
String result = cell1.getContents();
System.out.println(result);
book.close();
}
操作修改:
public class JXLModify {
public static void main(String[] args) throws Exception
{
//获得Excel文件
String filePath = "d:\\test.xls";
Workbook wb = Workbook.getWorkbook(new File(filePath));
//打开一个文件的副本,并且制定数据写回到源文件
注意这里的第二个参数,是上面获得的Excel参数
WritableWorkbook book = Workbook.createWorkbook(new File(filePath),wb );
//获得第一个表
WritableSheet oldSheet = book.getSheet(0);
Label l = new Label(0, 1, "修改测试的编号");
oldSheet.addCell(l);
//添加一个新的工作表
WritableSheet sheet = book.createSheet("第二个表",1);
Label l = new Label(0, 0, "第二页的测试数据");
sheet.addCell(l);
//关闭
book.write();
book.close();
}
}
操作图片(注意图片格式:
Warning: Image type jpeg not supported. Supported types are png
)
public static void main(String[] args) throws Exception{
String filePath = "d:\\test.xls";
Workbook wb = Workbook.getWorkbook(new File(filePath));
WritableWorkbook wwb = Workbook.createWorkbook(new File(filePath),wb);
WritableSheet sheet = wwb.getSheet(2);
File imageFile = new File("d:\\jxl.png");
//5个参数 (行 列) 横跨(行 列) 文件对象
WritableImage image = new WritableImage(1,4, 2, 2, imageFile);
//这里注意写入方法
sheet.addImage(image);
wwb.write();
wwb.close();
}
单元格的简单操作方法:
WritableSheet.setRowView(int i,int height); //指定第I+1行的高度
WritableSheet.setColumnView(int i,int width); // 指定第i+1 列的宽度