Question

我尝试使用HSSFWorkbook将Jtable数据导出到Excel表格中。我从JTable获取所有数据，但十进制格式与JTable不同。请任何人帮助我......

例如： JTable - ＆gt; 4555个
导出的xls - ＆gt; 4,55479080958

这里用于获取JTable内容的命令：

try {
        for (int i = 0; i < tableModel.getRowCount(); i++) {
            fRow1 = workbookSheet.createRow((short) i);

            for (int j = 0; j < tableModel.getColumnCount(); j++) {
                HSSFCell cell = fRow1.createCell((short) j);
                cell.setCellValue(tableModel.getValueAt(i, j).toString());

            }

        }

        FileOutputStream fileOutputStream;
        fileOutputStream = new FileOutputStream("C:\\file.xls");

        BufferedOutputStream bos = new BufferedOutputStream(fileOutputStream);
        hssfWorkbook.write(bos);
        bos.close();
        fileOutputStream.close();
    } catch (Exception e) {
        for (int i = 0; i < tableModel.getColumnCount(); i++) {
            fRow1 = workbookSheet.createRow((short) i);

            for (int j = 0; j < tableModel.getColumnCount(); j++) {
                HSSFCell cell = fRow1.createCell((short) j);
                cell.setCellValue(tableModel.getValueAt(i, j).toString());

                System.out.println(tableModel.getColumnName(j));
            }
        }
    }

这里是JTable的代码：

public class FileModel extends AbstractTableModel implements FilenameFilter {

List<Object[]> data = new ArrayList<>();

String titles[] = new String[] { "File Name", "Pages", "Media Box Height", "Media Box Width", "Trim Box Height",
        "Trim Box Width", "Path" };
Class<?> types[] = new Class[] { String.class, Integer.class, Float.class, Float.class, Float.class, Float.class,
        String.class };

public FileModel() {
    this("C:\\");

}

public FileModel(String directory) {
    File inputFiles = new File(directory);
    setFileStats(inputFiles);
}

// Implement the methods of the TableModel interface Only getRowCount(), getColumnCount() and getValueAt() are
// required.
//

@Override
public int getRowCount() {
    return this.data.size();
}

@Override
public int getColumnCount() {
    return this.titles.length;
}

@Override
public String getColumnName(int column) {
    return this.titles[column];
}

@Override
public Class<?> getColumnClass(int column) {
    return this.types[column];
}

@Override
public Object getValueAt(int row, int column) {
    return this.data.get(row)[column];
}

Answer 1

我使用了DecimalFormat：

 DecimalFormat formatDecimal = new DecimalFormat("###.000");

稍后我使用DecimalFormat将Object添加到AbstractTable：

this.data.add(new Object[] { file.getName(), formatDecimal.format(123.42345),file.getAbsolutePath() });

导出的xls文件中的Decimalformat与JTable不同

1 个答案: