Jxl写Excel文件没有效果

Question

监听器代码

out.setOnClickListener(new View.OnClickListener() {

@Override
public void onClick(View v) {
   
       try {
WriteExcel("E:\workspace\LastApp\student.xls");
} catch (RowsExceededException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (WriteException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}

});

写入代码

private void WriteExcel(String files)throws IOException, RowsExceededException,  

    WriteException  {
        try {
        String filePath = files;
   File file = new File(filePath);
   if(!file.isFile())//如果指定文件不存在，则新建该文件
   file.createNewFile();
            //OutputStream out = new FileOutputStream(file);
            WritableWorkbook mWorkbook = Workbook.createWorkbook(file);
            WritableSheet mSheet = mWorkbook.createSheet("hello", 0);


            for(CurCell mCurCell : mArrayList){
                Label mLabel = new Label(mCurCell.col, mCurCell.row, mCurCell.content);
                mSheet.addCell(mLabel);
            }


            mWorkbook.write();
            mWorkbook.close();
            //out.close();


        } catch (RowsExceededException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        } catch (WriteException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        } catch (IOException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }
    }

求解为什么程序可以运行，可就是问么都无法写入指定Excel文件？？？？

Answer 1

这是我的测试方法：

public class Test {

	public static void main(String[] args) {
		writeExcel("f:/test/test.xls");
	}
	
	private static void writeExcel(String files) {
        try {
	    File file = new File(files);
	    if(!file.isFile())//如果指定文件不存在，则新建该文件
	        file.createNewFile();
            //OutputStream out = new FileOutputStream(file);
            WritableWorkbook mWorkbook = Workbook.createWorkbook(file);
            WritableSheet mSheet = mWorkbook.createSheet("hello", 0);

            for (int i = 0; i < 5; i++) {
            	Label mLabel = new Label(0, i, "测试数据"+i);
            	mSheet.addCell(mLabel);
			}
            mWorkbook.write();
            mWorkbook.close();
            //out.close();


        } catch (RowsExceededException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        } catch (WriteException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        } catch (IOException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }
    }
}

这是测试结果：

貌似是好的，不知哪里有错额。

Answer 2

貌似程序应该是对的

问题1：mArrayList里面是否有数据？

问题2：是否是已经写入但样式看不见？