[英]Import data from JTable to Excel
i have code to import data from JTable to Excel like this: 我有代码将数据从JTable导入Excel,如下所示:
public void toExcel(JTable table, File file){
try {
WritableWorkbook workbook1 = Workbook.createWorkbook(file);
WritableSheet sheet1 = workbook1.createSheet("First Sheet", 0);
TableModel model = table.getModel();
for (int i = 0; i < model.getColumnCount(); i++) {
Label column = new Label(i, 0, model.getColumnName(i));
sheet1.addCell(column);
}
int j = 0;
for (int i = 0; i < model.getRowCount(); i++) {
for (j = 0; j < model.getColumnCount(); j++) {
Label row = new Label(j, i + 1,
model.getValueAt(i, j).toString());
sheet1.addCell(row);
}
}
workbook1.write();
workbook1.close();
} catch (Exception ex) {
ex.printStackTrace();
}
}
void excell(){
toExcel(TabelPerencanaan, new File("H:\\Hasil.xlsx"));
JOptionPane.showMessageDialog(null, "Data saved at " +
"'H: \\ Hasil.xlsx' successfully", "Message",
JOptionPane.INFORMATION_MESSAGE);
} }
But, when open file "Hasil.xlsx" always error. 但是,当打开文件“Hasil.xlsx”时总是出错。 so, that file can't opened.
所以,那个文件无法打开。 i don't know why like that.
我不知道为什么这样。 thanks
谢谢
The problem is that Java Excel API only generates spreadsheets in Excel 2000 format. 问题是Java Excel API仅生成Excel 2000格式的电子表格。 In that case, you need:
在这种情况下,您需要:
new File("H:\\Hasil.xls")
But if you really need to generate a XLSX, you can use Apache POI . 但如果您确实需要生成XLSX,则可以使用Apache POI 。
Workbook wb = new XSSFWorkbook();
Sheet sheet = wb.createSheet();
Row row = sheet.createRow(0);
TableModel model = table.getModel();
for (int i = 0; i < model.getColumnCount(); i++) {
row.createCell(i).setCellValue(model.getColumnName(i));
}
for (int i = 0; i < model.getRowCount(); i++) {
row = sheet.createRow(i + 1);
for (int j = 0; j < model.getColumnCount(); j++) {
row.createCell(j).setCellValue(
model.getValueAt(i, j).toString()
);
}
}
FileOutputStream fileOut = new FileOutputStream("H:\\Hasil.xlsx");
wb.write(fileOut);
fileOut.close();
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