将数据附加到Excel文件中

Question

我正在尝试编写一个程序,将数据附加到Java中的Excel文件中.我达到了以下代码.但它会重写Excel文件中的内容,而不是附加到它.请帮我完成这个.

public class jExcel
{
    static WritableWorkbook workbook;
    public static void main(String args[])throws Exception
    {
        workbook = Workbook.createWorkbook((new File("D:\\0077\\my2.xls")));
        WritableSheet sheet = workbook.createSheet("First Sheett",1);
        Label label = new Label(5,2,"ssssssssss");
        sheet.addCell(label);
        workbook.write();
        workbook.close();
    }
}

Answer 1

而不是createWorkbook使用" getWorkbook(java.io.File file)"来获得现有的Excel.然后使用getSheet(int index)来检索适当的工作表.

对于您在上面检索的工作表,使用" addCell(WritableCell cell)"将单元格附加到工作表.

Workbook workbook = Workbook.getWorkbook(new File(""D:\\0077\\my2.xls""));
WritableWorkbook copy = Workbook.createWorkbook(new File("output.xls"), workbook);
WritableSheet sheet2 = copy.getSheet(1); 
Label label = new Label(5,2,"ssssssssss"); 
sheet2.addCell(label); 

你会在这里找到很多例子. http://www.andykhan.com/jexcelapi/tutorial.html

Answer 2

//写入XLS

    WritableWorkbook workbook = Workbook.createWorkbook(new File("D:\\output.xls"));
    WritableSheet sheet = workbook.createSheet("First Sheet", 0);
    Label label = new Label(0, 2, "A label record"); 
    sheet.addCell(label);
    workbook.write(); 
    workbook.close();

    //MODIFY XLS

    Workbook workbook1 = Workbook.getWorkbook(new File("D:\\output.xls"));
    WritableWorkbook copy = Workbook.createWorkbook(new File("D:\\output.xls"), workbook1);
    WritableSheet sheet2 = copy.getSheet(0); 
    //WritableCell cell = sheet2.getWritableCell(5, 2); 

    copy.write();
    copy.close();