Question

您好我正在尝试使用HSSFWorkbook将Jtable数据导出到Excel表格中。我得到的所有内容是Table有的，但我没有得到表头，请任何人都可以帮助。

此处用于获取Jtable内容的命令。

        try {
                    HSSFWorkbook fWorkbook = new HSSFWorkbook();
                    HSSFSheet fSheet = fWorkbook.createSheet("new Sheet");
                    HSSFFont sheetTitleFont = fWorkbook.createFont();
                    File file = new File("/home/kishan/NetBeansProjects/JavaChecking/src/com/verve/SwingChecking/book.xls");
                    HSSFCellStyle cellStyle = fWorkbook.createCellStyle();

                    sheetTitleFont.setBoldweight(HSSFFont.BOLDWEIGHT_BOLD);
                    //sheetTitleFont.setColor();
                    TableModel model = jTable1.getModel();


                    for (int i = 0; i < model.getRowCount(); i++) {
                        HSSFRow fRow = fSheet.createRow((short) i);
                        for (int j = 0; j < model.getColumnCount(); j++) {
                            HSSFCell cell = fRow.createCell((short) j);
                            cell.setCellValue(model.getValueAt(i, j).toString());
                            cell.setCellStyle(cellStyle);

                        }

                    }
    FileOutputStream fileOutputStream;
                fileOutputStream = new FileOutputStream(file);
                BufferedOutputStream bos = new BufferedOutputStream(fileOutputStream);
                fWorkbook.write(bos);
                bos.close();
                fileOutputStream.close();
    }catch(Exception e){

        }



for (int i = 0; i < model.getColumnCount(); i++) {
                HSSFRow fRow = fSheet.createRow((short) i);
                for(int j = 0; j < model.getColumnCount(); j++) {
                    HSSFCell cell = fRow.createCell((short) j);
                    cell.setCellValue(model.getValueAt(i, j).toString());

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

last for循环不是表头的addind数据。 enter image description here

我正在获取这个excel文件

enter image description here 如何获得表头和那个??

Answer 1

这是我在本主题中的答案中对HSSF工作簿的实现。

我创建了一个类ExcelWriter，然后创建了一个带有两个参数的Method Writer; <{1}}和JTable将被使用。

FileLocation

Answer 2

您只是将TableModel中的数据写入工作簿。此模型不包含表头。看看JTable.getTableHeader()

例如：

public class JTableExport {

public static void main(String[] args) {
    Object[] columnNames = new Object[] {"column1", "column2"};
    JTable table = new JTable(new Object[0][0], columnNames);
    TableColumnModel model = table.getTableHeader().getColumnModel();

    for (int i = 0; i < model.getColumnCount(); i++) {
        System.out.println(model.getColumn(i).getHeaderValue());
    }
}
}

此代码打印

column1
column2

Answer 3

像这样在表单的第一行添加列名：

TableColumnModel tcm = jTable1.getColumnModel();
HSSFRow fRow = fSheet.createRow((short) 0);

for(int j = 0; j < tcm.getColumnCount(); j++) {

   HSSFCell cell = fRow.createCell((short) j);
   cell.setCellValue(tcm.getColumn(j).getHeaderValue().toString());           

}

您可以先运行此操作，然后从第二行开始添加表数据。

Answer 4

for（int j = 0; j＆lt; tcm.getColumnCount（）; j ++）{

HSSFCell cell = fRow.createCell（（short）j）; cell.setCellValue（tcm.getColumn（j）的.getHeaderValue（）的toString（））;

}

for（int j = 0; j＆lt; tcm.getRowCount（）; j ++）{

HSSFCell cell = fRow.createCell（（short）j）; cell.setCellValue（tcm.getColumn（j）的.getHeaderValue（）的toString（））;

}

Answer 5

我创建了这段代码：

public void Export() {

    JFileChooser save = new JFileChooser();
    save.setDialogTitle("Save as...");
    save.setFileFilter(new FileNameExtensionFilter("xls", "xlsx", "xlsm"));
    int choose = save.showSaveDialog(null);

    if(choose == JFileChooser.APPROVE_OPTION) {
        XSSFWorkbook export = new XSSFWorkbook();
        XSSFSheet sheet1 = export.createSheet("new file");
        try{
            TableModel tableModel = showQuery.getModel();

            for(int i=0; i<tableModel.getRowCount(); i++) {
                XSSFRow newRow = sheet1.createRow(i);
                for(int j=0; j<tableModel.getColumnCount(); j++) {
                    XSSFCell newCell = newRow.createCell((short) j);
                    if(i==0){
                        XSSFCellStyle style = export.createCellStyle();
                        style.setFillForegroundColor(IndexedColors.GREY_40_PERCENT.getIndex());
                        style.setFillPattern(XSSFCellStyle.SOLID_FOREGROUND);
                        style.setBorderBottom(BorderStyle.THIN);
                        style.setBorderTop(BorderStyle.THIN);
                        style.setBorderLeft(BorderStyle.THIN);
                        style.setBorderRight(BorderStyle.THIN);
                        newCell.setCellStyle(style);
                        newCell.setCellValue(tableModel.getColumnName(j));
                    } else {
                        XSSFCellStyle style = export.createCellStyle();
                        style.setBorderBottom(BorderStyle.THIN);
                        style.setBorderTop(BorderStyle.THIN);
                        style.setBorderLeft(BorderStyle.THIN);
                        style.setBorderRight(BorderStyle.THIN);
                        newCell.setCellStyle(style);
                    newCell.setCellValue(tableModel.getValueAt(i, j).toString());
                    }
                }
            }

            FileOutputStream otp = new FileOutputStream(save.getSelectedFile()+".xlsx");
            BufferedOutputStream bos = new BufferedOutputStream(otp);
            export.write(bos);
            bos.close();
            otp.close();

            JOptionPane.showMessageDialog(null, "Arquivo exprtado com sucesso!");
        }catch(Exception e) {
            JOptionPane.showMessageDialog(null, e);
        }
    }
}

使用HSSFWorkbook将Jtable导出到Excel表格中

5 个答案: