如何在TextPane中追加数据库的所有值。我正在为Billing流程制作软件，所以我想要从数据库中获取所有值来点击Button并使用TextPane附加但我遇到的问题是，当点击按钮时，只有一行附加了TextPane，而且没有附加。“
PRODUCT| |SIZE| |QUANTITY| |M.R.P.| |DIS| |AMOUNT|
Apple Jucie Large 1 30 0% 30
Orange Jucie Large 1 30 1% 29
//Like that i want but only one line is coming
public class BillingHandler implements ActionListener{
public void actionPerformed(ActionEvent e){
String itemname=e.getActionCommand();
if(e.getSource().equals(ordTypeField)){
ordertypeitem= ordTypeField.getSelectedItem().toString ();
searchordertypeitem(ordertypeitem);
}
else if(itemname.equals("Order")){
orderName=ordNameField.getSelectedItem().toString();
//System.out.println("Name of Item :"+orderName);
glasssizes=glasssizefield.getSelectedItem().toString();
// System.out.println("Size of Item :"+glasssizes);
noGlasses=noGlassField.getSelectedItem().toString();
//System.out.println("no of Item :"+noGlasses);
cash=remarkField.getSelectedItem().toString();
//System.out.println("remark :"+cash);
orderitem();
try{
Class.forName(driver);
con=DriverManager.getConnection(url,"root@localhost","root");
Statement st=con.createStatement();
String invoice="select * from ordertable where ord_no='"+ordField.getText()+"' ";
ResultSet rs=st.executeQuery(invoice);
while(rs.next()){
System.out.println(rs.getString("item_name"));
txtPane.setText(headerinfo
+"\nINV NO. "
+ordField.getText()
+" "
+"Date: "
+dateField.getText()
+timeFiled.getText()
+"\nName: "
+cusField.getText()
+" "
+"By Service: "
+empField.getText()
+"\n- - - - - - - - - - - -- - - - - - - - - - - - - - - - - - - - - - - - - - - - - -"
+"\nPRODUCT|"
+" "
+"|SIZE|"
+" "
+"|QUANTITY|"
+" "+"|M.R.P.|"
+" "+"|DIS|"
+" "+"|AMOUNT|"
+"\n- - - - - - - - - - - -- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - "
+"\n"+rs.getString("item_name")// Here i want to print allvalue
+"\n"
+" "
+ rs.getString("size_item")")// Here i want to print allvalue
+" "
+ rs.getString("no_item")")// Here i want to print all value
+" "
+rs.getString("mrp")")// Here i want to print all value
+" "
+rs.getString("discount")")// Here i want to print all value
+" "
+rs.getString("amount")")// Here i want to print all value
);
}
}
catch(SQLException ex){}
catch(ClassNotFoundException ex){}
catch(Exception ex){}
}
}
}