我需要一些关于我的计划的帮助。如何将数据从JList传递到数据库？
在ItemDetails.java中，我已将复选框值传递给另一个JForm中的JList。现在我想将数据从JList检索到我的数据库中。
ItemDetails.java
private void jButtonNextActionPerformed(java.awt.event.ActionEvent evt) {
ShoppingCart sc=new ShoppingCart();
if(!jCheckBoxAdele.isSelected()&&!jCheckBox1DPerfect.isSelected()&&!jCheckBoxBieber.isSelected()
&&!jCheckBox1D1Thing.isSelected()&&!jCheckBoxHujan.isSelected()&&!jCheckBoxSamWriting.isSelected()
&&!jCheckBoxAlessiaWil.isSelected()&&!jCheckBoxSamStayWithMe.isSelected()
&&!jCheckBoxFx.isSelected()&&!jCheckBoxSonaone.isSelected()&&!jCheckBoxRabbani.isSelected()
&&!jCheckBoxTroye.isSelected()&&!jCheckBoxMarvinGaye.isSelected())
{
sc.setVisible(false);
JOptionPane.showMessageDialog(null, "Please pick your song !!!");
dispose();
new ItemDetails().setVisible(true);
}
if(jCheckBoxAdele.isSelected())
songsdetails.add("Adele - Hello");
if(jCheckBox1DPerfect.isSelected())
songsdetails.add("One Direction - Perfect");
if(jCheckBoxBieber.isSelected())
songsdetails.add("Justin Bieber - Sorry");
if(jCheckBox1D1Thing.isSelected())
songsdetails.add("One Direction - One Thing");
if(jCheckBoxHujan.isSelected())
songsdetails.add("Hujan - Anging Kencang");
if(jCheckBoxSamWriting.isSelected())
songsdetails.add("Sam Smith - Writing On The Walls");
if(jCheckBoxAlessiaWil.isSelected())
songsdetails.add("Alessia Cara");
if(jCheckBoxSamStayWithMe.isSelected())
songsdetails.add("Sam Smith - Stay With Me");
if(jCheckBoxFx.isSelected())
songsdetails.add("F(x) - 4 Walls");
if(jCheckBoxDemi.isSelected())
songsdetails.add("Demi Lovato - I Really Don't Care");
if(jCheckBoxSonaone.isSelected())
songsdetails.add("Sonaone - Firefly");
if(jCheckBoxRabbani.isSelected())
songsdetails.add("Rabbani - Pergi Tak Kembali");
if(jCheckBoxTroye.isSelected())
songsdetails.add("Troye Sivan - Fools");
if(jCheckBoxMarvinGaye.isSelected())
songsdetails.add("Charlie Puth - Marvin Gaye");
new ShoppingCart(songsdetails).setVisible(true);
dispose();
}
ShoppingCart.java
public class ShoppingCart extends javax.swing.JFrame {
public Connection cn;
public PreparedStatement st;
static ArrayList songsdetails;
/**
* Creates new form ShoppingCart
*/
public ShoppingCart() {
initComponents();
}
public ShoppingCart(ArrayList SONGSDETAILS) {
initComponents();
songsdetails = SONGSDETAILS;
}
private void jButtonEditActionPerformed(java.awt.event.ActionEvent evt) {
this.setVisible(false);
jList1.clearSelection();
new ItemDetails().setVisible(true);
}
private void jButtonNextActionPerformed(java.awt.event.ActionEvent evt) {
try {
Class.forName("com.mysql.jdbc.Driver");
cn=DriverManager.getConnection("jdbc:mysql://localhost:3306/sdmusic","root","");
st=cn.prepareStatement("SELECT `Username`, `SongsSelection` FROM `user` WHERE `Username`=? 'SongsSelection' = ?");
} catch (ClassNotFoundException ex) {
Logger.getLogger(ShoppingCart.class.getName()).log(Level.SEVERE, null, ex);
} catch (SQLException ex) {
Logger.getLogger(ShoppingCart.class.getName()).log(Level.SEVERE, null, ex);
}
dispose();
new CalculatePay().setVisible(true);
}
private void formWindowOpened(java.awt.event.WindowEvent evt) {
// TODO add your handling code here:
DefaultListModel list = new DefaultListModel();
System.out.println(""+songsdetails.get(0));
for(int i=0; i <songsdetails.size();i++){
list.addElement(songsdetails.get(i));
}
jList1.setModel(list);
}