问题
I have a JTable that has four columns. I am using iText libraries to print PDF documents with data from the JTable. The problem is that the JTable is not showing properly in the PDF. I have searched on Google and came across the same situation here. The code is similar to mine as well as the output. I have also tried this example using Templates, however, the result is not changing.
How do we solve this? Please assist. If the codes are necessary, i will post but they are too many classes -i am working on a big application. The concept I would want is to make the JTable fit on the document.
回答1:
After a long struggle, I managed to make it as shown below. In case someone encounters this, here is the idea that saved me:
public void actionPerformed(ActionEvent e) {
try {
Document doc = new Document();
PdfWriter.getInstance(doc, new FileOutputStream("table.pdf"));
doc.open();
PdfPTable pdfTable = new PdfPTable(table.getColumnCount());
//adding table headers
for (int i = 0; i < table.getColumnCount(); i++) {
pdfTable.addCell(table.getColumnName(i));
}
//extracting data from the JTable and inserting it to PdfPTable
for (int rows = 0; rows < table.getRowCount() - 1; rows++) {
for (int cols = 0; cols < table.getColumnCount(); cols++) {
pdfTable.addCell(table.getModel().getValueAt(rows, cols).toString());
}
}
doc.add(pdfTable);
doc.close();
System.out.println("done");
} catch (DocumentException ex) {
Logger.getLogger(MainWindow.class.getName()).log(Level.SEVERE, null, ex);
} catch (FileNotFoundException ex) {
Logger.getLogger(MainWindow.class.getName()).log(Level.SEVERE, null, ex);
}
}
};
来源：https://stackoverflow.com/questions/28448377/fitting-a-jtable-in-an-itext-pdf-document