我不想以表格格式显示数据库中的数据，因此我尝试了类似您在代码中看到的方法。每次从数据库中检索记录时，我已经添加了新的JScrollPane容器，其中包含按钮和标签。但是由于大量的数据，面板正在溢出，但是没有启用滚动选项。
我尝试使用public class Test2 extends javax.swing.JFrame {
private Connection con;
private Statement st;
private ResultSet rt;
public int PageId = 8236;
/**
* Creates new form Test2
*/
public Test2() {
initComponents();
this.setLocationRelativeTo(null);
try{
Class.forName("oracle.jdbc.driver.OracleDriver");
con = DriverManager.getConnection("jdbc:oracle:thin:@localhost:1521","practice","perfect");
st = con.createStatement();
int height = 100;
int width = sc.getWidth();
int x = 0;
int y = 0;
ResultSet rs=st.executeQuery("select id, firstname || ' ' || lastname, salary from employee");
while(rs.next()){
JPanel g = new JPanel();
g.setBounds(x, y, width, height);
g.setBackground(Color.yellow);
JLabel l = new JLabel(rs.getString(1));
JLabel l1 = new JLabel(rs.getString(2));
JLabel sal = new JLabel(rs.getString(3));
JButton b = new JButton("View profile");
b.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
JOptionPane.showMessageDialog(sc, "Clicked!!");
}
});
g.add(l);
g.add(l1);
g.add(b);
sc.add(g);
y += (height + 10);
}
}
catch(Exception e){
JOptionPane.showMessageDialog(this, "Can't connect", "connection error", JOptionPane.ERROR_MESSAGE);
System.out.println(e.getMessage());
}
}
@SuppressWarnings("unchecked")
// <editor-fold defaultstate="collapsed" desc="Generated Code">
private void initComponents() {
sc = new javax.swing.JPanel();
setDefaultCloseOperation(javax.swing.WindowConstants.EXIT_ON_CLOSE);
sc.setAutoscrolls(true);
javax.swing.GroupLayout scLayout = new javax.swing.GroupLayout(sc);
sc.setLayout(scLayout);
scLayout.setHorizontalGroup(
scLayout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGap(0, 252, Short.MAX_VALUE)
);
scLayout.setVerticalGroup(
scLayout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGap(0, 483, Short.MAX_VALUE)
);
javax.swing.GroupLayout layout = new javax.swing.GroupLayout(getContentPane());
getContentPane().setLayout(layout);
layout.setHorizontalGroup(
layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addComponent(sc, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
);
layout.setVerticalGroup(
layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addComponent(sc, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
);
pack();
}// </editor-fold>
/**
* @param args the command line arguments
*/
public static void main(String args[]) {
try {
for (javax.swing.UIManager.LookAndFeelInfo info : javax.swing.UIManager.getInstalledLookAndFeels()) {
if ("Nimbus".equals(info.getName())) {
javax.swing.UIManager.setLookAndFeel(info.getClassName());
break;
}
}
} catch (ClassNotFoundException ex) {
java.util.logging.Logger.getLogger(Test2.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
} catch (InstantiationException ex) {
java.util.logging.Logger.getLogger(Test2.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
} catch (IllegalAccessException ex) {
java.util.logging.Logger.getLogger(Test2.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
} catch (javax.swing.UnsupportedLookAndFeelException ex) {
java.util.logging.Logger.getLogger(Test2.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
}
//</editor-fold>
/* Create and display the form */
java.awt.EventQueue.invokeLater(new Runnable() {
public void run() {
new Test2().setVisible(true);
}
});
}
// Variables declaration - do not modify
private javax.swing.JPanel sc;
// End of variables declaration
}
了很多次，但是没有一种方法可以帮助我。
string Query = "delete from Customers where CustomerName = '"+ dgv_CustomerDetails.CurrentCell(rowIndex).value +"'";
答案 0 :(得分：0)
我不想以表格格式显示数据库中的数据
为什么？根据您提供的代码，输出看起来很糟糕。您基于文本创建多个标签。这意味着每个标签的大小可以不同，这意味着每个标签在多行上的布局将是随机且不对齐的。
如果要在表格列中单击按钮，请签出：Table Button Column。
面板正在溢出，但是没有启用滚动选项。
sc.setAutoscrolls(true);
这不是向组件添加滚动的方式。该组件需要添加到JScrollPane中：
JPanel scrollingPanel = new JPanel();
scrollingPanel.setLayout(...);
scrollingPanel.add(...);
scrollingPanel.add(...);
getContentPane.add(new JScrollPane(scrollingPanel), BorderLayout.CENTER);
pack();
注意，我从未使用过SpringLayout。我建议您学习如何手动创建GUI的方法，这样就不必依赖IDE来生成代码。将会更容易理解和维护代码。